lineage-22.0
365 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
2ebd481b31 |
Merge 5.10.221 into android12-5.10-lts
Changes in 5.10.221 tracing/selftests: Fix kprobe event name test for .isra. functions null_blk: Print correct max open zones limit in null_init_zoned_dev() wifi: mac80211: mesh: Fix leak of mesh_preq_queue objects wifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup() wifi: cfg80211: pmsr: use correct nla_get_uX functions wifi: iwlwifi: mvm: revert gen2 TX A-MPDU size to 64 wifi: iwlwifi: dbg_ini: move iwl_dbg_tlv_free outside of debugfs ifdef wifi: iwlwifi: mvm: check n_ssids before accessing the ssids wifi: iwlwifi: mvm: don't read past the mfuart notifcation wifi: mac80211: correctly parse Spatial Reuse Parameter Set element net/ncsi: add NCSI Intel OEM command to keep PHY up net/ncsi: Simplify Kconfig/dts control flow net/ncsi: Fix the multi thread manner of NCSI driver ipv6: sr: block BH in seg6_output_core() and seg6_input_core() net: sched: sch_multiq: fix possible OOB write in multiq_tune() vxlan: Fix regression when dropping packets due to invalid src addresses tcp: count CLOSE-WAIT sockets for TCP_MIB_CURRESTAB net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP ptp: Fix error message on failed pin verification af_unix: Annotate data-race of sk->sk_state in unix_inq_len(). af_unix: Annotate data-races around sk->sk_state in unix_write_space() and poll(). af_unix: Annotate data-races around sk->sk_state in sendmsg() and recvmsg(). af_unix: Annotate data-races around sk->sk_state in UNIX_DIAG. af_unix: Annotate data-race of net->unx.sysctl_max_dgram_qlen. af_unix: Use unix_recvq_full_lockless() in unix_stream_connect(). af_unix: Use skb_queue_len_lockless() in sk_diag_show_rqlen(). af_unix: Annotate data-race of sk->sk_shutdown in sk_diag_fill(). ipv6: fix possible race in __fib6_drop_pcpu_from() usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete drm/amd/display: Handle Y carry-over in VCP X.Y calculation serial: sc16is7xx: replace hardcoded divisor value with BIT() macro serial: sc16is7xx: fix bug in sc16is7xx_set_baud() when using prescaler mmc: davinci: Don't strip remove function when driver is builtin selftests/mm: compaction_test: fix incorrect write of zero to nr_hugepages selftests/mm: conform test to TAP format output selftests/mm: compaction_test: fix bogus test success on Aarch64 btrfs: fix leak of qgroup extent records after transaction abort nilfs2: Remove check for PageError nilfs2: return the mapped address from nilfs_get_page() nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages mei: me: release irq in mei_me_pci_resume error path jfs: xattr: fix buffer overflow for invalid xattr xhci: Set correct transferred length for cancelled bulk transfers xhci: Apply reset resume quirk to Etron EJ188 xHCI host xhci: Apply broken streams quirk to Etron EJ188 xHCI host scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory powerpc/uaccess: Fix build errors seen with GCC 13/14 Input: try trimming too long modalias strings SUNRPC: return proper error from gss_wrap_req_priv gpio: tqmx86: fix typo in Kconfig label HID: core: remove unnecessary WARN_ON() in implement() gpio: tqmx86: store IRQ trigger type and unmask status separately iommu/amd: Introduce pci segment structure iommu/amd: Fix sysfs leak in iommu init iommu: Return right value in iommu_sva_bind_device() HID: logitech-dj: Fix memory leak in logi_dj_recv_switch_to_dj_mode() drm/vmwgfx: 3D disabled should not effect STDU memory limits net: sfp: Always call `sfp_sm_mod_remove()` on remove net: hns3: add cond_resched() to hns3 ring buffer init process liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet drm/komeda: check for error-valued pointer drm/bridge/panel: Fix runtime warning on panel bridge release tcp: fix race in tcp_v6_syn_recv_sock() net/mlx5e: Fix features validation check for tunneled UDP (non-VXLAN) packets Bluetooth: L2CAP: Fix rejecting L2CAP_CONN_PARAM_UPDATE_REQ netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type net: stmmac: replace priv->speed with the portTransmitRate from the tc-cbs parameters net/ipv6: Fix the RT cache flush via sysctl using a previous delay ionic: fix use after netif_napi_del() iio: adc: ad9467: fix scan type sign iio: dac: ad5592r: fix temperature channel scaling value iio: imu: inv_icm42600: delete unneeded update watermark call drivers: core: synchronize really_probe() and dev_uevent() drm/exynos/vidi: fix memory leak in .get_modes() drm/exynos: hdmi: report safe 640x480 mode as a fallback when no EDID found vmci: prevent speculation leaks by sanitizing event in event_deliver() fs/proc: fix softlockup in __read_vmcore ocfs2: use coarse time for new created files ocfs2: fix races between hole punching and AIO+DIO PCI: rockchip-ep: Remove wrong mask on subsys_vendor_id dmaengine: axi-dmac: fix possible race in remove() remoteproc: k3-r5: Do not allow core1 to power up before core0 via sysfs intel_th: pci: Add Granite Rapids support intel_th: pci: Add Granite Rapids SOC support intel_th: pci: Add Sapphire Rapids SOC support intel_th: pci: Add Meteor Lake-S support intel_th: pci: Add Lunar Lake support nilfs2: fix potential kernel bug due to lack of writeback flag waiting tick/nohz_full: Don't abuse smp_call_function_single() in tick_setup_device() serial: 8250_pxa: Configure tx_loadsz to match FIFO IRQ level hugetlb_encode.h: fix undefined behaviour (34 << 26) mptcp: ensure snd_una is properly initialized on connect mptcp: pm: inc RmAddr MIB counter once per RM_ADDR ID mptcp: pm: update add_addr counters after connect remoteproc: k3-r5: Jump to error handling labels in start/stop errors greybus: Fix use-after-free bug in gb_interface_release due to race condition. usb-storage: alauda: Check whether the media is initialized i2c: at91: Fix the functionality flags of the slave-only interface i2c: designware: Fix the functionality flags of the slave-only interface zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING padata: Disable BH when taking works lock on MT path rcutorture: Fix rcu_torture_one_read() pipe_count overflow comment rcutorture: Fix invalid context warning when enable srcu barrier testing block/ioctl: prefer different overflow check selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh selftests/bpf: Fix flaky test btf_map_in_map/lookup_update batman-adv: bypass empty buckets in batadv_purge_orig_ref() wifi: ath9k: work around memset overflow warning af_packet: avoid a false positive warning in packet_setsockopt() drop_monitor: replace spin_lock by raw_spin_lock scsi: qedi: Fix crash while reading debugfs attribute kselftest: arm64: Add a null pointer check netpoll: Fix race condition in netpoll_owner_active HID: Add quirk for Logitech Casa touchpad ACPI: video: Add backlight=native quirk for Lenovo Slim 7 16ARH7 Bluetooth: ath3k: Fix multiple issues reported by checkpatch.pl drm/amd/display: Exit idle optimizations before HDCP execution ASoC: Intel: sof_sdw: add JD2 quirk for HP Omen 14 drm/lima: add mask irq callback to gp and pp drm/lima: mask irqs in timeout path before hard reset powerpc/pseries: Enforce hcall result buffer validity and size powerpc/io: Avoid clang null pointer arithmetic warnings power: supply: cros_usbpd: provide ID table for avoiding fallback match iommu/arm-smmu-v3: Free MSIs in case of ENOMEM f2fs: remove clear SB_INLINECRYPT flag in default_options usb: misc: uss720: check for incompatible versions of the Belkin F5U002 udf: udftime: prevent overflow in udf_disk_stamp_to_time() PCI/PM: Avoid D3cold for HP Pavilion 17 PC/1972 PCIe Ports MIPS: Octeon: Add PCIe link status check serial: exar: adding missing CTI and Exar PCI ids MIPS: Routerboard 532: Fix vendor retry check code mips: bmips: BCM6358: make sure CBR is correctly set tracing: Build event generation tests only as modules cipso: fix total option length computation netrom: Fix a memory leak in nr_heartbeat_expiry() ipv6: prevent possible NULL deref in fib6_nh_init() ipv6: prevent possible NULL dereference in rt6_probe() xfrm6: check ip6_dst_idev() return value in xfrm6_get_saddr() netns: Make get_net_ns() handle zero refcount net qca_spi: Make interrupt remembering atomic net/sched: act_api: rely on rcu in tcf_idr_check_alloc net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc() tipc: force a dst refcount before doing decryption net/sched: act_ct: set 'net' pointer when creating new nf_flow_table sched: act_ct: add netns into the key of tcf_ct_flow_table net: stmmac: No need to calculate speed divider when offload is disabled virtio_net: checksum offloading handling fix netfilter: ipset: Fix suspicious rcu_dereference_protected() net: usb: rtl8150 fix unintiatilzed variables in rtl8150_get_link_ksettings regulator: core: Fix modpost error "regulator_get_regmap" undefined dmaengine: ioat: switch from 'pci_' to 'dma_' API dmaengine: ioat: Drop redundant pci_enable_pcie_error_reporting() dmaengine: ioatdma: Fix leaking on version mismatch dmaengine: ioat: use PCI core macros for PCIe Capability dmaengine: ioatdma: Fix error path in ioat3_dma_probe() dmaengine: ioatdma: Fix kmemleak in ioat_pci_probe() dmaengine: ioatdma: Fix missing kmem_cache_destroy() ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." RDMA/mlx5: Add check for srq max_sge attribute ALSA: hda/realtek: Limit mic boost on N14AP7 drm/radeon: fix UBSAN warning in kv_dpm.c gcov: add support for GCC 14 kcov: don't lose track of remote references during softirqs i2c: ocores: set IACK bit after core is enabled dt-bindings: i2c: google,cros-ec-i2c-tunnel: correct path to i2c-controller schema drm/amd/display: revert Exit idle optimizations before HDCP execution ARM: dts: samsung: smdkv310: fix keypad no-autorepeat ARM: dts: samsung: exynos4412-origen: fix keypad no-autorepeat ARM: dts: samsung: smdk4412: fix keypad no-autorepeat rtlwifi: rtl8192de: Style clean-ups wifi: rtlwifi: rtl8192de: Fix 5 GHz TX power pmdomain: ti-sci: Fix duplicate PD referrals knfsd: LOOKUP can return an illegal error value spmi: hisi-spmi-controller: Do not override device identifier bcache: fix variable length array abuse in btree_iter tracing: Add MODULE_DESCRIPTION() to preemptirq_delay_test x86/cpu/vfm: Add new macros to work with (vendor/family/model) values x86/cpu: Fix x86_match_cpu() to match just X86_VENDOR_INTEL r8169: remove unneeded memory barrier in rtl_tx r8169: improve rtl_tx r8169: improve rtl8169_start_xmit r8169: remove nr_frags argument from rtl_tx_slots_avail r8169: remove not needed check in rtl8169_start_xmit r8169: Fix possible ring buffer corruption on fragmented Tx packets. Revert "kheaders: substituting --sort in archive creation" kheaders: explicitly define file modes for archived headers perf/core: Fix missing wakeup when waiting for context reference PCI: Add PCI_ERROR_RESPONSE and related definitions x86/amd_nb: Check for invalid SMN reads cifs: missed ref-counting smb session in find smb: client: fix deadlock in smb2_find_smb_tcon() ACPI: Add quirks for AMD Renoir/Lucienne CPUs to force the D3 hint ACPI: x86: Add a quirk for Dell Inspiron 14 2-in-1 for StorageD3Enable ACPI: x86: Add another system to quirk list for forcing StorageD3Enable ACPI: x86: utils: Add Cezanne to the list for forcing StorageD3Enable ACPI: x86: utils: Add Picasso to the list for forcing StorageD3Enable ACPI: x86: Force StorageD3Enable on more products Input: ili210x - fix ili251x_read_touch_data() return value pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER pinctrl: rockchip: fix pinmux bits for RK3328 GPIO2-B pins pinctrl: rockchip: fix pinmux bits for RK3328 GPIO3-B pins pinctrl/rockchip: separate struct rockchip_pin_bank to a head file pinctrl: rockchip: use dedicated pinctrl type for RK3328 pinctrl: rockchip: fix pinmux reset in rockchip_pmx_set drm/amdgpu: fix UBSAN warning in kv_dpm.c netfilter: nf_tables: validate family when identifying table via handle SUNRPC: Fix null pointer dereference in svc_rqst_free() SUNRPC: Fix a NULL pointer deref in trace_svc_stats_latency() SUNRPC: Fix svcxdr_init_decode's end-of-buffer calculation SUNRPC: Fix svcxdr_init_encode's buflen calculation nfsd: hold a lighter-weight client reference over CB_RECALL_ANY ASoC: fsl-asoc-card: set priv->pdev before using it net: dsa: microchip: fix initial port flush problem net: phy: micrel: add Microchip KSZ 9477 to the device table xdp: Move the rxq_info.mem clearing to unreg_mem_model() xdp: Allow registering memory model without rxq reference xdp: Remove WARN() from __xdp_reg_mem_model() sparc: fix old compat_sys_select() sparc: fix compat recv/recvfrom syscalls parisc: use correct compat recv/recvfrom syscalls netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers drm/panel: ilitek-ili9881c: Fix warning with GPIO controllers that sleep mtd: partitions: redboot: Added conversion of operands to a larger type bpf: Add a check for struct bpf_fib_lookup size net/iucv: Avoid explicit cpumask var allocation on stack net/dpaa2: Avoid explicit cpumask var allocation on stack ALSA: emux: improve patch ioctl data validation media: dvbdev: Initialize sbuf soc: ti: wkup_m3_ipc: Send NULL dummy message instead of pointer message drm/radeon/radeon_display: Decrease the size of allocated memory nvme: fixup comment for nvme RDMA Provider Type drm/panel: simple: Add missing display timing flags for KOE TX26D202VM0BWA gpio: davinci: Validate the obtained number of IRQs gpiolib: cdev: Disallow reconfiguration without direction (uAPI v1) x86: stop playing stack games in profile_pc() ocfs2: fix DIO failure due to insufficient transaction credits mmc: sdhci-pci: Convert PCIBIOS_* return codes to errnos mmc: sdhci: Do not invert write-protect twice mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro() counter: ti-eqep: enable clock at probe iio: adc: ad7266: Fix variable checking bug iio: chemical: bme680: Fix pressure value output iio: chemical: bme680: Fix calibration data variable iio: chemical: bme680: Fix overflows in compensate() functions iio: chemical: bme680: Fix sensor data read operation net: usb: ax88179_178a: improve link status logs usb: gadget: printer: SS+ support usb: gadget: printer: fix races against disable usb: musb: da8xx: fix a resource leak in probe() usb: atm: cxacru: fix endpoint checking in cxacru_bind() serial: 8250_omap: Implementation of Errata i2310 tty: mcf: MCF54418 has 10 UARTS net: can: j1939: Initialize unused data in j1939_send_one() net: can: j1939: recover socket queue on CAN bus error during BAM transmission net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new kbuild: Install dtb files as 0644 in Makefile.dtbinst csky, hexagon: fix broken sys_sync_file_range hexagon: fix fadvise64_64 calling conventions drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes drm/i915/gt: Fix potential UAF by revoke of fence registers drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_hd_modes batman-adv: Don't accept TT entries for out-of-spec VIDs ata: ahci: Clean up sysfs file on error ata: libata-core: Fix double free on error ftruncate: pass a signed offset syscalls: fix compat_sys_io_pgetevents_time64 usage mtd: spinand: macronix: Add support for serial NAND flash pwm: stm32: Refuse too small period requests nfs: Leave pages in the pagecache if readpage failed ipv6: annotate some data-races around sk->sk_prot ipv6: Fix data races around sk->sk_prot. tcp: Fix data races around icsk->icsk_af_ops. drivers: fix typo in firmware/efi/memmap.c efi: Correct comment on efi_memmap_alloc efi: memmap: Move manipulation routines into x86 arch tree efi: xen: Set EFI_PARAVIRT for Xen dom0 boot on all architectures efi/x86: Free EFI memory map only when installing a new one. KVM: arm64: vgic-v4: Make the doorbell request robust w.r.t preemption ARM: dts: rockchip: rk3066a: add #sound-dai-cells to hdmi node arm64: dts: rockchip: Add sound-dai-cells for RK3368 xdp: xdp_mem_allocator can be NULL in trace_mem_connect(). serial: 8250_omap: Fix Errata i2310 with RX FIFO level check tracing/net_sched: NULL pointer dereference in perf_trace_qdisc_reset() Linux 5.10.221 Change-Id: Icac1c62fcbda5102be7ea031121f28d6fee36875 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Greg Kroah-Hartman
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88eb084d18 |
Revert "Merge 5.10.220 into android12-5.10-lts"
This reverts commit |
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|
Greg Kroah-Hartman
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87a7f35a24 |
Merge 5.10.220 into android12-5.10-lts
Changes in 5.10.220
SUNRPC: Rename svc_encode_read_payload()
NFSD: Invoke svc_encode_result_payload() in "read" NFSD encoders
NFSD: A semicolon is not needed after a switch statement.
nfsd/nfs3: remove unused macro nfsd3_fhandleres
NFSD: Clean up the show_nf_may macro
NFSD: Remove extra "0x" in tracepoint format specifier
NFSD: Add SPDX header for fs/nfsd/trace.c
nfsd: Fix error return code in nfsd_file_cache_init()
SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer()
SUNRPC: Prepare for xdr_stream-style decoding on the server-side
NFSD: Add common helpers to decode void args and encode void results
NFSD: Add tracepoints in nfsd_dispatch()
NFSD: Add tracepoints in nfsd4_decode/encode_compound()
NFSD: Replace the internals of the READ_BUF() macro
NFSD: Replace READ* macros in nfsd4_decode_access()
NFSD: Replace READ* macros in nfsd4_decode_close()
NFSD: Replace READ* macros in nfsd4_decode_commit()
NFSD: Change the way the expected length of a fattr4 is checked
NFSD: Replace READ* macros that decode the fattr4 size attribute
NFSD: Replace READ* macros that decode the fattr4 acl attribute
NFSD: Replace READ* macros that decode the fattr4 mode attribute
NFSD: Replace READ* macros that decode the fattr4 owner attribute
NFSD: Replace READ* macros that decode the fattr4 owner_group attribute
NFSD: Replace READ* macros that decode the fattr4 time_set attributes
NFSD: Replace READ* macros that decode the fattr4 security label attribute
NFSD: Replace READ* macros that decode the fattr4 umask attribute
NFSD: Replace READ* macros in nfsd4_decode_fattr()
NFSD: Replace READ* macros in nfsd4_decode_create()
NFSD: Replace READ* macros in nfsd4_decode_delegreturn()
NFSD: Replace READ* macros in nfsd4_decode_getattr()
NFSD: Replace READ* macros in nfsd4_decode_link()
NFSD: Relocate nfsd4_decode_opaque()
NFSD: Add helpers to decode a clientid4 and an NFSv4 state owner
NFSD: Add helper for decoding locker4
NFSD: Replace READ* macros in nfsd4_decode_lock()
NFSD: Replace READ* macros in nfsd4_decode_lockt()
NFSD: Replace READ* macros in nfsd4_decode_locku()
NFSD: Replace READ* macros in nfsd4_decode_lookup()
NFSD: Add helper to decode NFSv4 verifiers
NFSD: Add helper to decode OPEN's createhow4 argument
NFSD: Add helper to decode OPEN's openflag4 argument
NFSD: Replace READ* macros in nfsd4_decode_share_access()
NFSD: Replace READ* macros in nfsd4_decode_share_deny()
NFSD: Add helper to decode OPEN's open_claim4 argument
NFSD: Replace READ* macros in nfsd4_decode_open()
NFSD: Replace READ* macros in nfsd4_decode_open_confirm()
NFSD: Replace READ* macros in nfsd4_decode_open_downgrade()
NFSD: Replace READ* macros in nfsd4_decode_putfh()
NFSD: Replace READ* macros in nfsd4_decode_read()
NFSD: Replace READ* macros in nfsd4_decode_readdir()
NFSD: Replace READ* macros in nfsd4_decode_remove()
NFSD: Replace READ* macros in nfsd4_decode_rename()
NFSD: Replace READ* macros in nfsd4_decode_renew()
NFSD: Replace READ* macros in nfsd4_decode_secinfo()
NFSD: Replace READ* macros in nfsd4_decode_setattr()
NFSD: Replace READ* macros in nfsd4_decode_setclientid()
NFSD: Replace READ* macros in nfsd4_decode_setclientid_confirm()
NFSD: Replace READ* macros in nfsd4_decode_verify()
NFSD: Replace READ* macros in nfsd4_decode_write()
NFSD: Replace READ* macros in nfsd4_decode_release_lockowner()
NFSD: Replace READ* macros in nfsd4_decode_cb_sec()
NFSD: Replace READ* macros in nfsd4_decode_backchannel_ctl()
NFSD: Replace READ* macros in nfsd4_decode_bind_conn_to_session()
NFSD: Add a separate decoder to handle state_protect_ops
NFSD: Add a separate decoder for ssv_sp_parms
NFSD: Add a helper to decode state_protect4_a
NFSD: Add a helper to decode nfs_impl_id4
NFSD: Add a helper to decode channel_attrs4
NFSD: Replace READ* macros in nfsd4_decode_create_session()
NFSD: Replace READ* macros in nfsd4_decode_destroy_session()
NFSD: Replace READ* macros in nfsd4_decode_free_stateid()
NFSD: Replace READ* macros in nfsd4_decode_getdeviceinfo()
NFSD: Replace READ* macros in nfsd4_decode_layoutcommit()
NFSD: Replace READ* macros in nfsd4_decode_layoutget()
NFSD: Replace READ* macros in nfsd4_decode_layoutreturn()
NFSD: Replace READ* macros in nfsd4_decode_secinfo_no_name()
NFSD: Replace READ* macros in nfsd4_decode_sequence()
NFSD: Replace READ* macros in nfsd4_decode_test_stateid()
NFSD: Replace READ* macros in nfsd4_decode_destroy_clientid()
NFSD: Replace READ* macros in nfsd4_decode_reclaim_complete()
NFSD: Replace READ* macros in nfsd4_decode_fallocate()
NFSD: Replace READ* macros in nfsd4_decode_nl4_server()
NFSD: Replace READ* macros in nfsd4_decode_copy()
NFSD: Replace READ* macros in nfsd4_decode_copy_notify()
NFSD: Replace READ* macros in nfsd4_decode_offload_status()
NFSD: Replace READ* macros in nfsd4_decode_seek()
NFSD: Replace READ* macros in nfsd4_decode_clone()
NFSD: Replace READ* macros in nfsd4_decode_xattr_name()
NFSD: Replace READ* macros in nfsd4_decode_setxattr()
NFSD: Replace READ* macros in nfsd4_decode_listxattrs()
NFSD: Make nfsd4_ops::opnum a u32
NFSD: Replace READ* macros in nfsd4_decode_compound()
NFSD: Remove macros that are no longer used
nfsd: only call inode_query_iversion in the I_VERSION case
nfsd: simplify nfsd4_change_info
nfsd: minor nfsd4_change_attribute cleanup
nfsd4: don't query change attribute in v2/v3 case
Revert "nfsd4: support change_attr_type attribute"
nfsd: add a new EXPORT_OP_NOWCC flag to struct export_operations
nfsd: allow filesystems to opt out of subtree checking
nfsd: close cached files prior to a REMOVE or RENAME that would replace target
exportfs: Add a function to return the raw output from fh_to_dentry()
nfsd: Fix up nfsd to ensure that timeout errors don't result in ESTALE
nfsd: Set PF_LOCAL_THROTTLE on local filesystems only
nfsd: Record NFSv4 pre/post-op attributes as non-atomic
exec: Don't open code get_close_on_exec
exec: Move unshare_files to fix posix file locking during exec
exec: Simplify unshare_files
exec: Remove reset_files_struct
kcmp: In kcmp_epoll_target use fget_task
bpf: In bpf_task_fd_query use fget_task
proc/fd: In proc_fd_link use fget_task
Revert "fget: clarify and improve __fget_files() implementation"
file: Rename __fcheck_files to files_lookup_fd_raw
file: Factor files_lookup_fd_locked out of fcheck_files
file: Replace fcheck_files with files_lookup_fd_rcu
file: Rename fcheck lookup_fd_rcu
file: Implement task_lookup_fd_rcu
proc/fd: In tid_fd_mode use task_lookup_fd_rcu
kcmp: In get_file_raw_ptr use task_lookup_fd_rcu
file: Implement task_lookup_next_fd_rcu
proc/fd: In proc_readfd_common use task_lookup_next_fd_rcu
proc/fd: In fdinfo seq_show don't use get_files_struct
file: Merge __fd_install into fd_install
file: In f_dupfd read RLIMIT_NOFILE once.
file: Merge __alloc_fd into alloc_fd
file: Rename __close_fd to close_fd and remove the files parameter
file: Replace ksys_close with close_fd
inotify: Increase default inotify.max_user_watches limit to 1048576
fs/lockd: convert comma to semicolon
NFSD: Fix sparse warning in nfssvc.c
NFSD: Restore NFSv4 decoding's SAVEMEM functionality
SUNRPC: Make trace_svc_process() display the RPC procedure symbolically
SUNRPC: Display RPC procedure names instead of proc numbers
SUNRPC: Move definition of XDR_UNIT
NFSD: Update GETATTR3args decoder to use struct xdr_stream
NFSD: Update ACCESS3arg decoder to use struct xdr_stream
NFSD: Update READ3arg decoder to use struct xdr_stream
NFSD: Update WRITE3arg decoder to use struct xdr_stream
NFSD: Update READLINK3arg decoder to use struct xdr_stream
NFSD: Fix returned READDIR offset cookie
NFSD: Add helper to set up the pages where the dirlist is encoded
NFSD: Update READDIR3args decoders to use struct xdr_stream
NFSD: Update COMMIT3arg decoder to use struct xdr_stream
NFSD: Update the NFSv3 DIROPargs decoder to use struct xdr_stream
NFSD: Update the RENAME3args decoder to use struct xdr_stream
NFSD: Update the LINK3args decoder to use struct xdr_stream
NFSD: Update the SETATTR3args decoder to use struct xdr_stream
NFSD: Update the CREATE3args decoder to use struct xdr_stream
NFSD: Update the MKDIR3args decoder to use struct xdr_stream
NFSD: Update the SYMLINK3args decoder to use struct xdr_stream
NFSD: Update the MKNOD3args decoder to use struct xdr_stream
NFSD: Update the NFSv2 GETATTR argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 READ argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 WRITE argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 READLINK argument decoder to use struct xdr_stream
NFSD: Add helper to set up the pages where the dirlist is encoded
NFSD: Update the NFSv2 READDIR argument decoder to use struct xdr_stream
NFSD: Update NFSv2 diropargs decoding to use struct xdr_stream
NFSD: Update the NFSv2 RENAME argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 LINK argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 SETATTR argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 CREATE argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 SYMLINK argument decoder to use struct xdr_stream
NFSD: Remove argument length checking in nfsd_dispatch()
NFSD: Update the NFSv2 GETACL argument decoder to use struct xdr_stream
NFSD: Add an xdr_stream-based decoder for NFSv2/3 ACLs
NFSD: Update the NFSv2 SETACL argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 ACL GETATTR argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 ACL ACCESS argument decoder to use struct xdr_stream
NFSD: Clean up after updating NFSv2 ACL decoders
NFSD: Update the NFSv3 GETACL argument decoder to use struct xdr_stream
NFSD: Update the NFSv2 SETACL argument decoder to use struct xdr_stream
NFSD: Clean up after updating NFSv3 ACL decoders
nfsd: remove unused stats counters
nfsd: protect concurrent access to nfsd stats counters
nfsd: report per-export stats
nfsd4: simplify process_lookup1
nfsd: simplify process_lock
nfsd: simplify nfsd_renew
nfsd: rename lookup_clientid->set_client
nfsd: refactor set_client
nfsd: find_cpntf_state cleanup
nfsd: remove unused set_client argument
nfsd: simplify nfsd4_check_open_reclaim
nfsd: cstate->session->se_client -> cstate->clp
NFSv4_2: SSC helper should use its own config.
nfs: use change attribute for NFS re-exports
nfsd: skip some unnecessary stats in the v4 case
inotify, memcg: account inotify instances to kmemcg
module: unexport find_module and module_mutex
module: use RCU to synchronize find_module
kallsyms: refactor {,module_}kallsyms_on_each_symbol
kallsyms: only build {,module_}kallsyms_on_each_symbol when required
fs: add file and path permissions helpers
namei: introduce struct renamedata
NFSD: Extract the svcxdr_init_encode() helper
NFSD: Update the GETATTR3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 ACCESS3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 LOOKUP3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 wccstat result encoder to use struct xdr_stream
NFSD: Update the NFSv3 READLINK3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 READ3res encode to use struct xdr_stream
NFSD: Update the NFSv3 WRITE3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 CREATE family of encoders to use struct xdr_stream
NFSD: Update the NFSv3 RENAMEv3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 LINK3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 FSSTAT3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 FSINFO3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 PATHCONF3res encoder to use struct xdr_stream
NFSD: Update the NFSv3 COMMIT3res encoder to use struct xdr_stream
NFSD: Add a helper that encodes NFSv3 directory offset cookies
NFSD: Count bytes instead of pages in the NFSv3 READDIR encoder
NFSD: Update the NFSv3 READDIR3res encoder to use struct xdr_stream
NFSD: Update NFSv3 READDIR entry encoders to use struct xdr_stream
NFSD: Remove unused NFSv3 directory entry encoders
NFSD: Reduce svc_rqst::rq_pages churn during READDIR operations
NFSD: Update the NFSv2 stat encoder to use struct xdr_stream
NFSD: Update the NFSv2 attrstat encoder to use struct xdr_stream
NFSD: Update the NFSv2 diropres encoder to use struct xdr_stream
NFSD: Update the NFSv2 READLINK result encoder to use struct xdr_stream
NFSD: Update the NFSv2 READ result encoder to use struct xdr_stream
NFSD: Update the NFSv2 STATFS result encoder to use struct xdr_stream
NFSD: Add a helper that encodes NFSv3 directory offset cookies
NFSD: Count bytes instead of pages in the NFSv2 READDIR encoder
NFSD: Update the NFSv2 READDIR result encoder to use struct xdr_stream
NFSD: Update the NFSv2 READDIR entry encoder to use struct xdr_stream
NFSD: Remove unused NFSv2 directory entry encoders
NFSD: Add an xdr_stream-based encoder for NFSv2/3 ACLs
NFSD: Update the NFSv2 GETACL result encoder to use struct xdr_stream
NFSD: Update the NFSv2 SETACL result encoder to use struct xdr_stream
NFSD: Update the NFSv2 ACL GETATTR result encoder to use struct xdr_stream
NFSD: Update the NFSv2 ACL ACCESS result encoder to use struct xdr_stream
NFSD: Clean up after updating NFSv2 ACL encoders
NFSD: Update the NFSv3 GETACL result encoder to use struct xdr_stream
NFSD: Update the NFSv3 SETACL result encoder to use struct xdr_stream
NFSD: Clean up after updating NFSv3 ACL encoders
NFSD: Add a tracepoint to record directory entry encoding
NFSD: Clean up NFSDDBG_FACILITY macro
nfsd: helper for laundromat expiry calculations
nfsd: Log client tracking type log message as info instead of warning
nfsd: Fix typo "accesible"
nfsd: COPY with length 0 should copy to end of file
nfsd: don't ignore high bits of copy count
nfsd: report client confirmation status in "info" file
SUNRPC: Export svc_xprt_received()
UAPI: nfsfh.h: Replace one-element array with flexible-array member
NFSD: Use DEFINE_SPINLOCK() for spinlock
fsnotify: allow fsnotify_{peek,remove}_first_event with empty queue
Revert "fanotify: limit number of event merge attempts"
fanotify: reduce event objectid to 29-bit hash
fanotify: mix event info and pid into merge key hash
fsnotify: use hash table for faster events merge
fanotify: limit number of event merge attempts
fanotify: configurable limits via sysfs
fanotify: support limited functionality for unprivileged users
fanotify_user: use upper_32_bits() to verify mask
nfsd: remove unused function
nfsd: removed unused argument in nfsd_startup_generic()
nfsd: hash nfs4_files by inode number
nfsd: track filehandle aliasing in nfs4_files
nfsd: reshuffle some code
nfsd: grant read delegations to clients holding writes
nfsd: Fix fall-through warnings for Clang
NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code.
NFS: fix nfs_fetch_iversion()
fanotify: fix permission model of unprivileged group
NFSD: Add an RPC authflavor tracepoint display helper
NFSD: Add nfsd_clid_cred_mismatch tracepoint
NFSD: Add nfsd_clid_verf_mismatch tracepoint
NFSD: Remove trace_nfsd_clid_inuse_err
NFSD: Add nfsd_clid_confirmed tracepoint
NFSD: Add nfsd_clid_reclaim_complete tracepoint
NFSD: Add nfsd_clid_destroyed tracepoint
NFSD: Add a couple more nfsd_clid_expired call sites
NFSD: Add tracepoints for SETCLIENTID edge cases
NFSD: Add tracepoints for EXCHANGEID edge cases
NFSD: Constify @fh argument of knfsd_fh_hash()
NFSD: Capture every CB state transition
NFSD: Drop TRACE_DEFINE_ENUM for NFSD4_CB_<state> macros
NFSD: Add cb_lost tracepoint
NFSD: Adjust cb_shutdown tracepoint
NFSD: Enhance the nfsd_cb_setup tracepoint
NFSD: Add an nfsd_cb_lm_notify tracepoint
NFSD: Add an nfsd_cb_offload tracepoint
NFSD: Replace the nfsd_deleg_break tracepoint
NFSD: Add an nfsd_cb_probe tracepoint
NFSD: Remove the nfsd_cb_work and nfsd_cb_done tracepoints
NFSD: Update nfsd_cb_args tracepoint
nfsd: Prevent truncation of an unlinked inode from blocking access to its directory
nfsd: move some commit_metadata()s outside the inode lock
NFSD add vfs_fsync after async copy is done
NFSD: delay unmount source's export after inter-server copy completed.
nfsd: move fsnotify on client creation outside spinlock
nfsd4: Expose the callback address and state of each NFS4 client
nfsd: fix kernel test robot warning in SSC code
NFSD: Fix error return code in nfsd4_interssc_connect()
nfsd: rpc_peeraddr2str needs rcu lock
lockd: Remove stale comments
lockd: Create a simplified .vs_dispatch method for NLM requests
lockd: Common NLM XDR helpers
lockd: Update the NLMv1 void argument decoder to use struct xdr_stream
lockd: Update the NLMv1 TEST arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 LOCK arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 CANCEL arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 UNLOCK arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 nlm_res arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 SM_NOTIFY arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 SHARE arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 FREE_ALL arguments decoder to use struct xdr_stream
lockd: Update the NLMv1 void results encoder to use struct xdr_stream
lockd: Update the NLMv1 TEST results encoder to use struct xdr_stream
lockd: Update the NLMv1 nlm_res results encoder to use struct xdr_stream
lockd: Update the NLMv1 SHARE results encoder to use struct xdr_stream
lockd: Update the NLMv4 void arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 TEST arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 LOCK arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 CANCEL arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 UNLOCK arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 nlm_res arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 SM_NOTIFY arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 SHARE arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 FREE_ALL arguments decoder to use struct xdr_stream
lockd: Update the NLMv4 void results encoder to use struct xdr_stream
lockd: Update the NLMv4 TEST results encoder to use struct xdr_stream
lockd: Update the NLMv4 nlm_res results encoder to use struct xdr_stream
lockd: Update the NLMv4 SHARE results encoder to use struct xdr_stream
nfsd: remove redundant assignment to pointer 'this'
NFSD: Prevent a possible oops in the nfs_dirent() tracepoint
nfsd: fix NULL dereference in nfs3svc_encode_getaclres
kernel/pid.c: remove static qualifier from pidfd_create()
kernel/pid.c: implement additional checks upon pidfd_create() parameters
fanotify: minor cosmetic adjustments to fid labels
fanotify: introduce a generic info record copying helper
fanotify: add pidfd support to the fanotify API
fsnotify: replace igrab() with ihold() on attach connector
fsnotify: count s_fsnotify_inode_refs for attached connectors
fsnotify: count all objects with attached connectors
fsnotify: optimize the case of no marks of any type
NFSD: Clean up splice actor
SUNRPC: Add svc_rqst_replace_page() API
NFSD: Batch release pages during splice read
NFSD: remove vanity comments
sysctl: introduce new proc handler proc_dobool
lockd: change the proc_handler for nsm_use_hostnames
nlm: minor nlm_lookup_file argument change
nlm: minor refactoring
lockd: update nlm_lookup_file reexport comment
Keep read and write fds with each nlm_file
nfs: don't atempt blocking locks on nfs reexports
lockd: don't attempt blocking locks on nfs reexports
nfs: don't allow reexport reclaims
SUNRPC: Add svc_rqst::rq_auth_stat
SUNRPC: Set rq_auth_stat in the pg_authenticate() callout
SUNRPC: Eliminate the RQ_AUTHERR flag
NFS: Add a private local dispatcher for NFSv4 callback operations
NFS: Remove unused callback void decoder
fsnotify: fix sb_connectors leak
NLM: Fix svcxdr_encode_owner()
nfsd: Fix a warning for nfsd_file_close_inode
fsnotify: pass data_type to fsnotify_name()
fsnotify: pass dentry instead of inode data
fsnotify: clarify contract for create event hooks
fsnotify: Don't insert unmergeable events in hashtable
fanotify: Fold event size calculation to its own function
fanotify: Split fsid check from other fid mode checks
inotify: Don't force FS_IN_IGNORED
fsnotify: Add helper to detect overflow_event
fsnotify: Add wrapper around fsnotify_add_event
fsnotify: Retrieve super block from the data field
fsnotify: Protect fsnotify_handle_inode_event from no-inode events
fsnotify: Pass group argument to free_event
fanotify: Support null inode event in fanotify_dfid_inode
fanotify: Allow file handle encoding for unhashed events
fanotify: Encode empty file handle when no inode is provided
fanotify: Require fid_mode for any non-fd event
fsnotify: Support FS_ERROR event type
fanotify: Reserve UAPI bits for FAN_FS_ERROR
fanotify: Pre-allocate pool of error events
fanotify: Support enqueueing of error events
fanotify: Support merging of error events
fanotify: Wrap object_fh inline space in a creator macro
fanotify: Add helpers to decide whether to report FID/DFID
fanotify: WARN_ON against too large file handles
fanotify: Report fid info for file related file system errors
fanotify: Emit generic error info for error event
fanotify: Allow users to request FAN_FS_ERROR events
SUNRPC: Trace calls to .rpc_call_done
NFSD: Optimize DRC bucket pruning
NFSD: move filehandle format declarations out of "uapi".
NFSD: drop support for ancient filehandles
NFSD: simplify struct nfsfh
NFSD: Initialize pointer ni with NULL and not plain integer 0
NFSD: Have legacy NFSD WRITE decoders use xdr_stream_subsegment()
SUNRPC: Replace the "__be32 *p" parameter to .pc_decode
SUNRPC: Change return value type of .pc_decode
NFSD: Save location of NFSv4 COMPOUND status
SUNRPC: Replace the "__be32 *p" parameter to .pc_encode
SUNRPC: Change return value type of .pc_encode
nfsd: update create verifier comment
NFSD:fix boolreturn.cocci warning
nfsd4: remove obselete comment
NFSD: Fix exposure in nfsd4_decode_bitmap()
NFSD: Fix READDIR buffer overflow
fsnotify: clarify object type argument
fsnotify: separate mark iterator type from object type enum
fanotify: introduce group flag FAN_REPORT_TARGET_FID
fsnotify: generate FS_RENAME event with rich information
fanotify: use macros to get the offset to fanotify_info buffer
fanotify: use helpers to parcel fanotify_info buffer
fanotify: support secondary dir fh and name in fanotify_info
fanotify: record old and new parent and name in FAN_RENAME event
fanotify: record either old name new name or both for FAN_RENAME
fanotify: report old and/or new parent+name in FAN_RENAME event
fanotify: wire up FAN_RENAME event
exit: Implement kthread_exit
exit: Rename module_put_and_exit to module_put_and_kthread_exit
NFSD: Fix sparse warning
NFSD: handle errors better in write_ports_addfd()
SUNRPC: change svc_get() to return the svc.
SUNRPC/NFSD: clean up get/put functions.
SUNRPC: stop using ->sv_nrthreads as a refcount
nfsd: make nfsd_stats.th_cnt atomic_t
SUNRPC: use sv_lock to protect updates to sv_nrthreads.
NFSD: narrow nfsd_mutex protection in nfsd thread
NFSD: Make it possible to use svc_set_num_threads_sync
SUNRPC: discard svo_setup and rename svc_set_num_threads_sync()
NFSD: simplify locking for network notifier.
lockd: introduce nlmsvc_serv
lockd: simplify management of network status notifiers
lockd: move lockd_start_svc() call into lockd_create_svc()
lockd: move svc_exit_thread() into the thread
lockd: introduce lockd_put()
lockd: rename lockd_create_svc() to lockd_get()
SUNRPC: move the pool_map definitions (back) into svc.c
SUNRPC: always treat sv_nrpools==1 as "not pooled"
lockd: use svc_set_num_threads() for thread start and stop
NFS: switch the callback service back to non-pooled.
NFSD: Remove be32_to_cpu() from DRC hash function
NFSD: Fix inconsistent indenting
NFSD: simplify per-net file cache management
NFSD: Combine XDR error tracepoints
nfsd: improve stateid access bitmask documentation
NFSD: De-duplicate nfsd4_decode_bitmap4()
nfs: block notification on fs with its own ->lock
nfsd4: add refcount for nfsd4_blocked_lock
NFSD: Fix zero-length NFSv3 WRITEs
nfsd: map EBADF
nfsd: Add errno mapping for EREMOTEIO
nfsd: Retry once in nfsd_open on an -EOPENSTALE return
NFSD: Clean up nfsd_vfs_write()
NFSD: De-duplicate net_generic(SVC_NET(rqstp), nfsd_net_id)
NFSD: De-duplicate net_generic(nf->nf_net, nfsd_net_id)
nfsd: Add a tracepoint for errors in nfsd4_clone_file_range()
NFSD: Write verifier might go backwards
NFSD: Clean up the nfsd_net::nfssvc_boot field
NFSD: Rename boot verifier functions
NFSD: Trace boot verifier resets
Revert "nfsd: skip some unnecessary stats in the v4 case"
NFSD: Move fill_pre_wcc() and fill_post_wcc()
nfsd: fix crash on COPY_NOTIFY with special stateid
fanotify: remove variable set but not used
lockd: fix server crash on reboot of client holding lock
lockd: fix failure to cleanup client locks
NFSD: Fix the behavior of READ near OFFSET_MAX
NFSD: Fix ia_size underflow
NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
NFSD: COMMIT operations must not return NFS?ERR_INVAL
NFSD: Deprecate NFS_OFFSET_MAX
nfsd: Add support for the birth time attribute
NFSD: De-duplicate hash bucket indexing
NFSD: Skip extra computation for RC_NOCACHE case
NFSD: Streamline the rare "found" case
SUNRPC: Remove the .svo_enqueue_xprt method
SUNRPC: Merge svc_do_enqueue_xprt() into svc_enqueue_xprt()
SUNRPC: Remove svo_shutdown method
SUNRPC: Rename svc_create_xprt()
SUNRPC: Rename svc_close_xprt()
SUNRPC: Remove svc_shutdown_net()
NFSD: Remove svc_serv_ops::svo_module
NFSD: Move svc_serv_ops::svo_function into struct svc_serv
NFSD: Remove CONFIG_NFSD_V3
NFSD: Clean up _lm_ operation names
nfsd: fix using the correct variable for sizeof()
fsnotify: fix merge with parent's ignored mask
fsnotify: optimize FS_MODIFY events with no ignored masks
fsnotify: remove redundant parameter judgment
SUNRPC: Return true/false (not 1/0) from bool functions
nfsd: Fix a write performance regression
nfsd: Clean up nfsd_file_put()
fanotify: do not allow setting dirent events in mask of non-dir
fs/lock: documentation cleanup. Replace inode->i_lock with flc_lock.
inotify: move control flags from mask to mark flags
fsnotify: pass flags argument to fsnotify_alloc_group()
fsnotify: make allow_dups a property of the group
fsnotify: create helpers for group mark_mutex lock
inotify: use fsnotify group lock helpers
nfsd: use fsnotify group lock helpers
dnotify: use fsnotify group lock helpers
fsnotify: allow adding an inode mark without pinning inode
fanotify: create helper fanotify_mark_user_flags()
fanotify: factor out helper fanotify_mark_update_flags()
fanotify: implement "evictable" inode marks
fanotify: use fsnotify group lock helpers
fanotify: enable "evictable" inode marks
fsnotify: introduce mark type iterator
fsnotify: consistent behavior for parent not watching children
fanotify: fix incorrect fmode_t casts
NFSD: Clean up nfsd_splice_actor()
NFSD: add courteous server support for thread with only delegation
NFSD: add support for share reservation conflict to courteous server
NFSD: move create/destroy of laundry_wq to init_nfsd and exit_nfsd
fs/lock: add helper locks_owner_has_blockers to check for blockers
fs/lock: add 2 callbacks to lock_manager_operations to resolve conflict
NFSD: add support for lock conflict to courteous server
NFSD: Show state of courtesy client in client info
NFSD: Clean up nfsd3_proc_create()
NFSD: Avoid calling fh_drop_write() twice in do_nfsd_create()
NFSD: Refactor nfsd_create_setattr()
NFSD: Refactor NFSv3 CREATE
NFSD: Refactor NFSv4 OPEN(CREATE)
NFSD: Remove do_nfsd_create()
NFSD: Clean up nfsd_open_verified()
NFSD: Instantiate a struct file when creating a regular NFSv4 file
NFSD: Remove dprintk call sites from tail of nfsd4_open()
NFSD: Fix whitespace
NFSD: Move documenting comment for nfsd4_process_open2()
NFSD: Trace filecache opens
NFSD: Clean up the show_nf_flags() macro
SUNRPC: Use RMW bitops in single-threaded hot paths
nfsd: Unregister the cld notifier when laundry_wq create failed
nfsd: Fix null-ptr-deref in nfsd_fill_super()
nfsd: destroy percpu stats counters after reply cache shutdown
NFSD: Modernize nfsd4_release_lockowner()
NFSD: Add documenting comment for nfsd4_release_lockowner()
NFSD: nfsd_file_put() can sleep
NFSD: Fix potential use-after-free in nfsd_file_put()
SUNRPC: Optimize xdr_reserve_space()
fanotify: refine the validation checks on non-dir inode mask
NFS: restore module put when manager exits.
NFSD: Decode NFSv4 birth time attribute
lockd: set fl_owner when unlocking files
lockd: fix nlm_close_files
fs: inotify: Fix typo in inotify comment
fanotify: prepare for setting event flags in ignore mask
fanotify: cleanups for fanotify_mark() input validations
fanotify: introduce FAN_MARK_IGNORE
fsnotify: Fix comment typo
nfsd: eliminate the NFSD_FILE_BREAK_* flags
SUNRPC: Fix xdr_encode_bool()
NLM: Defend against file_lock changes after vfs_test_lock()
NFSD: Fix space and spelling mistake
nfsd: remove redundant assignment to variable len
NFSD: Demote a WARN to a pr_warn()
NFSD: Report filecache LRU size
NFSD: Report count of calls to nfsd_file_acquire()
NFSD: Report count of freed filecache items
NFSD: Report average age of filecache items
NFSD: Add nfsd_file_lru_dispose_list() helper
NFSD: Refactor nfsd_file_gc()
NFSD: Refactor nfsd_file_lru_scan()
NFSD: Report the number of items evicted by the LRU walk
NFSD: Record number of flush calls
NFSD: Zero counters when the filecache is re-initialized
NFSD: Hook up the filecache stat file
NFSD: WARN when freeing an item still linked via nf_lru
NFSD: Trace filecache LRU activity
NFSD: Leave open files out of the filecache LRU
NFSD: Fix the filecache LRU shrinker
NFSD: Never call nfsd_file_gc() in foreground paths
NFSD: No longer record nf_hashval in the trace log
NFSD: Remove lockdep assertion from unhash_and_release_locked()
NFSD: nfsd_file_unhash can compute hashval from nf->nf_inode
NFSD: Refactor __nfsd_file_close_inode()
NFSD: nfsd_file_hash_remove can compute hashval
NFSD: Remove nfsd_file::nf_hashval
NFSD: Replace the "init once" mechanism
NFSD: Set up an rhashtable for the filecache
NFSD: Convert the filecache to use rhashtable
NFSD: Clean up unused code after rhashtable conversion
NFSD: Separate tracepoints for acquire and create
NFSD: Move nfsd_file_trace_alloc() tracepoint
NFSD: NFSv4 CLOSE should release an nfsd_file immediately
NFSD: Ensure nf_inode is never dereferenced
NFSD: refactoring v4 specific code to a helper in nfs4state.c
NFSD: keep track of the number of v4 clients in the system
NFSD: limit the number of v4 clients to 1024 per 1GB of system memory
nfsd: silence extraneous printk on nfsd.ko insertion
NFSD: Optimize nfsd4_encode_operation()
NFSD: Optimize nfsd4_encode_fattr()
NFSD: Clean up SPLICE_OK in nfsd4_encode_read()
NFSD: Add an nfsd4_read::rd_eof field
NFSD: Optimize nfsd4_encode_readv()
NFSD: Simplify starting_len
NFSD: Use xdr_pad_size()
NFSD: Clean up nfsd4_encode_readlink()
NFSD: Fix strncpy() fortify warning
NFSD: nfserrno(-ENOMEM) is nfserr_jukebox
NFSD: Shrink size of struct nfsd4_copy_notify
NFSD: Shrink size of struct nfsd4_copy
NFSD: Reorder the fields in struct nfsd4_op
NFSD: Make nfs4_put_copy() static
NFSD: Replace boolean fields in struct nfsd4_copy
NFSD: Refactor nfsd4_cleanup_inter_ssc() (1/2)
NFSD: Refactor nfsd4_cleanup_inter_ssc() (2/2)
NFSD: Refactor nfsd4_do_copy()
NFSD: Remove kmalloc from nfsd4_do_async_copy()
NFSD: Add nfsd4_send_cb_offload()
NFSD: Move copy offload callback arguments into a separate structure
NFSD: drop fh argument from alloc_init_deleg
NFSD: verify the opened dentry after setting a delegation
NFSD: introduce struct nfsd_attrs
NFSD: set attributes when creating symlinks
NFSD: add security label to struct nfsd_attrs
NFSD: add posix ACLs to struct nfsd_attrs
NFSD: change nfsd_create()/nfsd_symlink() to unlock directory before returning.
NFSD: always drop directory lock in nfsd_unlink()
NFSD: only call fh_unlock() once in nfsd_link()
NFSD: reduce locking in nfsd_lookup()
NFSD: use explicit lock/unlock for directory ops
NFSD: use (un)lock_inode instead of fh_(un)lock for file operations
NFSD: discard fh_locked flag and fh_lock/fh_unlock
lockd: detect and reject lock arguments that overflow
NFSD: fix regression with setting ACLs.
nfsd_splice_actor(): handle compound pages
NFSD: move from strlcpy with unused retval to strscpy
lockd: move from strlcpy with unused retval to strscpy
NFSD enforce filehandle check for source file in COPY
NFSD: remove redundant variable status
nfsd: Avoid some useless tests
nfsd: Propagate some error code returned by memdup_user()
NFSD: Increase NFSD_MAX_OPS_PER_COMPOUND
NFSD: Protect against send buffer overflow in NFSv2 READDIR
NFSD: Protect against send buffer overflow in NFSv3 READDIR
NFSD: Protect against send buffer overflow in NFSv2 READ
NFSD: Protect against send buffer overflow in NFSv3 READ
NFSD: drop fname and flen args from nfsd_create_locked()
NFSD: Fix handling of oversized NFSv4 COMPOUND requests
nfsd: clean up mounted_on_fileid handling
nfsd: remove nfsd4_prepare_cb_recall() declaration
NFSD: Add tracepoints to report NFSv4 callback completions
NFSD: Add a mechanism to wait for a DELEGRETURN
NFSD: Refactor nfsd_setattr()
NFSD: Make nfsd4_setattr() wait before returning NFS4ERR_DELAY
NFSD: Make nfsd4_rename() wait before returning NFS4ERR_DELAY
NFSD: Make nfsd4_remove() wait before returning NFS4ERR_DELAY
NFSD: keep track of the number of courtesy clients in the system
NFSD: add shrinker to reap courtesy clients on low memory condition
SUNRPC: Parametrize how much of argsize should be zeroed
NFSD: Reduce amount of struct nfsd4_compoundargs that needs clearing
NFSD: Refactor common code out of dirlist helpers
NFSD: Use xdr_inline_decode() to decode NFSv3 symlinks
NFSD: Clean up WRITE arg decoders
NFSD: Clean up nfs4svc_encode_compoundres()
NFSD: Remove "inline" directives on op_rsize_bop helpers
NFSD: Remove unused nfsd4_compoundargs::cachetype field
NFSD: Pack struct nfsd4_compoundres
nfsd: use DEFINE_PROC_SHOW_ATTRIBUTE to define nfsd_proc_ops
nfsd: use DEFINE_SHOW_ATTRIBUTE to define export_features_fops and supported_enctypes_fops
nfsd: use DEFINE_SHOW_ATTRIBUTE to define client_info_fops
nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_reply_cache_stats_fops
nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_file_cache_stats_fops
NFSD: Rename the fields in copy_stateid_t
NFSD: Cap rsize_bop result based on send buffer size
nfsd: only fill out return pointer on success in nfsd4_lookup_stateid
nfsd: fix comments about spinlock handling with delegations
nfsd: make nfsd4_run_cb a bool return function
nfsd: extra checks when freeing delegation stateids
fs/notify: constify path
fsnotify: remove unused declaration
fanotify: Remove obsoleted fanotify_event_has_path()
nfsd: fix nfsd_file_unhash_and_dispose
nfsd: rework hashtable handling in nfsd_do_file_acquire
NFSD: unregister shrinker when nfsd_init_net() fails
nfsd: fix net-namespace logic in __nfsd_file_cache_purge
nfsd: fix use-after-free in nfsd_file_do_acquire tracepoint
nfsd: put the export reference in nfsd4_verify_deleg_dentry
NFSD: Fix reads with a non-zero offset that don't end on a page boundary
filelock: add a new locks_inode_context accessor function
lockd: use locks_inode_context helper
nfsd: use locks_inode_context helper
NFSD: Simplify READ_PLUS
NFSD: Remove redundant assignment to variable host_err
NFSD: Finish converting the NFSv2 GETACL result encoder
NFSD: Finish converting the NFSv3 GETACL result encoder
nfsd: ignore requests to disable unsupported versions
nfsd: move nfserrno() to vfs.c
nfsd: allow disabling NFSv2 at compile time
exportfs: use pr_debug for unreachable debug statements
NFSD: Pass the target nfsd_file to nfsd_commit()
NFSD: Revert "NFSD: NFSv4 CLOSE should release an nfsd_file immediately"
NFSD: Add an NFSD_FILE_GC flag to enable nfsd_file garbage collection
NFSD: Flesh out a documenting comment for filecache.c
NFSD: Clean up nfs4_preprocess_stateid_op() call sites
NFSD: Trace stateids returned via DELEGRETURN
NFSD: Trace delegation revocations
NFSD: Use const pointers as parameters to fh_ helpers
NFSD: Update file_hashtbl() helpers
NFSD: Clean up nfsd4_init_file()
NFSD: Add a nfsd4_file_hash_remove() helper
NFSD: Clean up find_or_add_file()
NFSD: Refactor find_file()
NFSD: Use rhashtable for managing nfs4_file objects
NFSD: Fix licensing header in filecache.c
nfsd: remove the pages_flushed statistic from filecache
nfsd: reorganize filecache.c
nfsd: fix up the filecache laundrette scheduling
NFSD: Add an nfsd_file_fsync tracepoint
lockd: set other missing fields when unlocking files
nfsd: return error if nfs4_setacl fails
NFSD: Use struct_size() helper in alloc_session()
lockd: set missing fl_flags field when retrieving args
lockd: ensure we use the correct file descriptor when unlocking
lockd: fix file selection in nlmsvc_cancel_blocked
NFSD: pass range end to vfs_fsync_range() instead of count
NFSD: refactoring courtesy_client_reaper to a generic low memory shrinker
NFSD: add support for sending CB_RECALL_ANY
NFSD: add delegation reaper to react to low memory condition
NFSD: Use only RQ_DROPME to signal the need to drop a reply
NFSD: Avoid clashing function prototypes
nfsd: rework refcounting in filecache
nfsd: fix handling of cached open files in nfsd4_open codepath
Revert "SUNRPC: Use RMW bitops in single-threaded hot paths"
NFSD: Use set_bit(RQ_DROPME)
NFSD: fix use-after-free in nfsd4_ssc_setup_dul()
NFSD: register/unregister of nfsd-client shrinker at nfsd startup/shutdown time
NFSD: replace delayed_work with work_struct for nfsd_client_shrinker
nfsd: don't free files unconditionally in __nfsd_file_cache_purge
nfsd: don't destroy global nfs4_file table in per-net shutdown
NFSD: enhance inter-server copy cleanup
nfsd: allow nfsd_file_get to sanely handle a NULL pointer
nfsd: clean up potential nfsd_file refcount leaks in COPY codepath
NFSD: fix leaked reference count of nfsd4_ssc_umount_item
nfsd: don't hand out delegation on setuid files being opened for write
NFSD: fix problems with cleanup on errors in nfsd4_copy
nfsd: fix courtesy client with deny mode handling in nfs4_upgrade_open
nfsd: don't fsync nfsd_files on last close
NFSD: copy the whole verifier in nfsd_copy_write_verifier
NFSD: Protect against filesystem freezing
lockd: set file_lock start and end when decoding nlm4 testargs
nfsd: don't replace page in rq_pages if it's a continuation of last page
NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL
nfsd: call op_release, even when op_func returns an error
nfsd: don't open-code clear_and_wake_up_bit
nfsd: NFSD_FILE_KEY_INODE only needs to find GC'ed entries
nfsd: simplify test_bit return in NFSD_FILE_KEY_FULL comparator
nfsd: don't kill nfsd_files because of lease break error
nfsd: add some comments to nfsd_file_do_acquire
nfsd: don't take/put an extra reference when putting a file
nfsd: update comment over __nfsd_file_cache_purge
nfsd: allow reaping files still under writeback
NFSD: Convert filecache to rhltable
nfsd: simplify the delayed disposal list code
NFSD: Fix problem of COMMIT and NFS4ERR_DELAY in infinite loop
nfsd: make a copy of struct iattr before calling notify_change
nfsd: fix double fget() bug in __write_ports_addfd()
lockd: drop inappropriate svc_get() from locked_get()
NFSD: Add an nfsd4_encode_nfstime4() helper
nfsd: Fix creation time serialization order
nfsd: don't allow nfsd threads to be signalled.
nfsd: Simplify code around svc_exit_thread() call in nfsd()
nfsd: separate nfsd_last_thread() from nfsd_put()
Documentation: Add missing documentation for EXPORT_OP flags
NFSD: fix possible oops when nfsd/pool_stats is closed.
nfsd: call nfsd_last_thread() before final nfsd_put()
nfsd: drop the nfsd_put helper
nfsd: fix RELEASE_LOCKOWNER
nfsd: don't take fi_lock in nfsd_break_deleg_cb()
nfsd: don't call locks_release_private() twice concurrently
nfsd: Fix a regression in nfsd_setattr()
Linux 5.10.220
Change-Id: I589ec5e63d1f985ab69f9755b9a87330627d44c5
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
|
||
Arnd Bergmann
|
84bf6b64a1 |
ftruncate: pass a signed offset
commit 4b8e88e563b5f666446d002ad0dc1e6e8e7102b0 upstream.
The old ftruncate() syscall, using the 32-bit off_t misses a sign
extension when called in compat mode on 64-bit architectures. As a
result, passing a negative length accidentally succeeds in truncating
to file size between 2GiB and 4GiB.
Changing the type of the compat syscall to the signed compat_off_t
changes the behavior so it instead returns -EINVAL.
The native entry point, the truncate() syscall and the corresponding
loff_t based variants are all correct already and do not suffer
from this mistake.
Fixes:
|
||
Chuck Lever
|
c20097329d |
NFSD: Instantiate a struct file when creating a regular NFSv4 file
[ Upstream commit fb70bf124b051d4ded4ce57511dfec6d3ebf2b43 ] There have been reports of races that cause NFSv4 OPEN(CREATE) to return an error even though the requested file was created. NFSv4 does not provide a status code for this case. To mitigate some of these problems, reorganize the NFSv4 OPEN(CREATE) logic to allocate resources before the file is actually created, and open the new file while the parent directory is still locked. Two new APIs are added: + Add an API that works like nfsd_file_acquire() but does not open the underlying file. The OPEN(CREATE) path can use this API when it already has an open file. + Add an API that is kin to dentry_open(). NFSD needs to create a file and grab an open "struct file *" atomically. The alloc_empty_file() has to be done before the inode create. If it fails (for example, because the NFS server has exceeded its max_files limit), we avoid creating the file and can still return an error to the NFS client. BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=382 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: JianHong Yin <jiyin@redhat.com> [ cel: backported to 5.10.y, prior to idmapped mounts ] Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> |
||
Christian Brauner
|
b0fa673c8c |
fs: add file and path permissions helpers
[ Upstream commit 02f92b3868a1b34ab98464e76b0e4e060474ba10 ] Add two simple helpers to check permissions on a file and path respectively and convert over some callers. It simplifies quite a few codepaths and also reduces the churn in later patches quite a bit. Christoph also correctly points out that this makes codepaths (e.g. ioctls) way easier to follow that would otherwise have to do more complex argument passing than necessary. Link: https://lore.kernel.org/r/20210121131959.646623-4-christian.brauner@ubuntu.com Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Suggested-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: James Morris <jamorris@linux.microsoft.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> |
||
Eric W. Biederman
|
6d256a904c |
file: Rename __close_fd to close_fd and remove the files parameter
[ Upstream commit 8760c909f54a82aaa6e76da19afe798a0c77c3c3 ] The function __close_fd was added to support binder[1]. Now that binder has been fixed to no longer need __close_fd[2] all calls to __close_fd pass current->files. Therefore transform the files parameter into a local variable initialized to current->files, and rename __close_fd to close_fd to reflect this change, and keep it in sync with the similar changes to __alloc_fd, and __fd_install. This removes the need for callers to care about the extra care that needs to be take if anything except current->files is passed, by limiting the callers to only operation on current->files. [1] |
||
|
Greg Kroah-Hartman
|
df0f5bd7a8 |
This is the 5.10.190 stable release
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Merge 5.10.190 into android12-5.10-lts
Changes in 5.10.190
KVM: s390: pv: fix index value of replaced ASCE
io_uring: don't audit the capability check in io_uring_create()
gpio: tps68470: Make tps68470_gpio_output() always set the initial value
btrfs: fix race between quota disable and relocation
btrfs: fix extent buffer leak after tree mod log failure at split_node()
i2c: Delete error messages for failed memory allocations
i2c: Improve size determinations
i2c: nomadik: Remove unnecessary goto label
i2c: nomadik: Use devm_clk_get_enabled()
i2c: nomadik: Remove a useless call in the remove function
PCI/ASPM: Return 0 or -ETIMEDOUT from pcie_retrain_link()
PCI/ASPM: Factor out pcie_wait_for_retrain()
PCI/ASPM: Avoid link retraining race
dlm: cleanup plock_op vs plock_xop
dlm: rearrange async condition return
fs: dlm: interrupt posix locks only when process is killed
drm/ttm: add ttm_bo_pin()/ttm_bo_unpin() v2
drm/ttm: never consider pinned BOs for eviction&swap
tracing: Show real address for trace event arguments
pwm: meson: Simplify duplicated per-channel tracking
pwm: meson: fix handling of period/duty if greater than UINT_MAX
ext4: fix to check return value of freeze_bdev() in ext4_shutdown()
phy: qcom-snps: Use dev_err_probe() to simplify code
phy: qcom-snps: correct struct qcom_snps_hsphy kerneldoc
phy: qcom-snps-femto-v2: keep cfg_ahb_clk enabled during runtime suspend
phy: qcom-snps-femto-v2: properly enable ref clock
media: staging: atomisp: select V4L2_FWNODE
i40e: Fix an NULL vs IS_ERR() bug for debugfs_create_dir()
net: phy: marvell10g: fix 88x3310 power up
net: hns3: reconstruct function hclge_ets_validate()
net: hns3: fix wrong bw weight of disabled tc issue
vxlan: move to its own directory
vxlan: calculate correct header length for GPE
phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe()
ethernet: atheros: fix return value check in atl1e_tso_csum()
ipv6 addrconf: fix bug where deleting a mngtmpaddr can create a new temporary address
tcp: Reduce chance of collisions in inet6_hashfn().
ice: Fix memory management in ice_ethtool_fdir.c
bonding: reset bond's flags when down link is P2P device
team: reset team's flags when down link is P2P device
platform/x86: msi-laptop: Fix rfkill out-of-sync on MSI Wind U100
netfilter: nft_set_rbtree: fix overlap expiration walk
netfilter: nftables: add helper function to validate set element data
netfilter: nf_tables: skip immediate deactivate in _PREPARE_ERROR
netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID
net/sched: mqprio: refactor nlattr parsing to a separate function
net/sched: mqprio: add extack to mqprio_parse_nlattr()
net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64
benet: fix return value check in be_lancer_xmit_workarounds()
tipc: check return value of pskb_trim()
tipc: stop tipc crypto on failure in tipc_node_create
RDMA/mlx4: Make check for invalid flags stricter
drm/msm/dpu: drop enum dpu_core_perf_data_bus_id
drm/msm/adreno: Fix snapshot BINDLESS_DATA size
RDMA/mthca: Fix crash when polling CQ for shared QPs
drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in a5xx_submit_in_rb()
ASoC: fsl_spdif: Silence output on stop
block: Fix a source code comment in include/uapi/linux/blkzoned.h
dm raid: fix missing reconfig_mutex unlock in raid_ctr() error paths
dm raid: clean up four equivalent goto tags in raid_ctr()
dm raid: protect md_stop() with 'reconfig_mutex'
ata: pata_ns87415: mark ns87560_tf_read static
ring-buffer: Fix wrong stat of cpu_buffer->read
tracing: Fix warning in trace_buffered_event_disable()
Revert "usb: gadget: tegra-xudc: Fix error check in tegra_xudc_powerdomain_init()"
USB: gadget: Fix the memory leak in raw_gadget driver
serial: qcom-geni: drop bogus runtime pm state update
serial: 8250_dw: Preserve original value of DLF register
serial: sifive: Fix sifive_serial_console_setup() section
USB: serial: option: support Quectel EM060K_128
USB: serial: option: add Quectel EC200A module support
USB: serial: simple: add Kaufmann RKS+CAN VCP
USB: serial: simple: sort driver entries
can: gs_usb: gs_can_close(): add missing set of CAN state to CAN_STATE_STOPPED
Revert "usb: dwc3: core: Enable AutoRetry feature in the controller"
usb: dwc3: pci: skip BYT GPIO lookup table for hardwired phy
usb: dwc3: don't reset device side if dwc3 was configured as host-only
usb: ohci-at91: Fix the unhandle interrupt when resume
USB: quirks: add quirk for Focusrite Scarlett
usb: xhci-mtk: set the dma max_seg_size
Revert "usb: xhci: tegra: Fix error check"
Documentation: security-bugs.rst: update preferences when dealing with the linux-distros group
Documentation: security-bugs.rst: clarify CVE handling
staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()
tty: n_gsm: fix UAF in gsm_cleanup_mux
ALSA: hda/relatek: Enable Mute LED on HP 250 G8
hwmon: (nct7802) Fix for temp6 (PECI1) processed even if PECI1 disabled
btrfs: check for commit error at btrfs_attach_transaction_barrier()
file: always lock position for FMODE_ATOMIC_POS
nfsd: Remove incorrect check in nfsd4_validate_stateid
tpm_tis: Explicitly check for error code
irq-bcm6345-l1: Do not assume a fixed block to cpu mapping
irqchip/gic-v4.1: Properly lock VPEs when doing a directLPI invalidation
KVM: VMX: Invert handling of CR0.WP for EPT without unrestricted guest
KVM: VMX: Fold ept_update_paging_mode_cr0() back into vmx_set_cr0()
KVM: nVMX: Do not clear CR3 load/store exiting bits if L1 wants 'em
KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest
staging: rtl8712: Use constants from <linux/ieee80211.h>
staging: r8712: Fix memory leak in _r8712_init_xmit_priv()
btrfs: check if the transaction was aborted at btrfs_wait_for_commit()
virtio-net: fix race between set queues and probe
s390/dasd: fix hanging device after quiesce/resume
ASoC: wm8904: Fill the cache for WM8904_ADC_TEST_0 register
ceph: never send metrics if disable_send_metrics is set
dm cache policy smq: ensure IO doesn't prevent cleaner policy progress
drm/ttm: make ttm_bo_unpin more defensive
ACPI: processor: perflib: Use the "no limit" frequency QoS
ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily
cpufreq: intel_pstate: Drop ACPI _PSS states table patching
selftests: mptcp: depend on SYN_COOKIES
io_uring: treat -EAGAIN for REQ_F_NOWAIT as final for io-wq
ASoC: cs42l51: fix driver to properly autoload with automatic module loading
kprobes/x86: Fix fall-through warnings for Clang
x86/kprobes: Do not decode opcode in resume_execution()
x86/kprobes: Retrieve correct opcode for group instruction
x86/kprobes: Identify far indirect JMP correctly
x86/kprobes: Use int3 instead of debug trap for single-step
x86/kprobes: Fix to identify indirect jmp and others using range case
x86/kprobes: Move 'inline' to the beginning of the kprobe_is_ss() declaration
x86/kprobes: Update kcb status flag after singlestepping
x86/kprobes: Fix JNG/JNLE emulation
io_uring: gate iowait schedule on having pending requests
perf: Fix function pointer case
loop: Select I/O scheduler 'none' from inside add_disk()
arm64: dts: imx8mn-var-som: add missing pull-up for onboard PHY reset pinmux
word-at-a-time: use the same return type for has_zero regardless of endianness
KVM: s390: fix sthyi error handling
wifi: cfg80211: Fix return value in scan logic
net/mlx5: DR, fix memory leak in mlx5dr_cmd_create_reformat_ctx
net/mlx5e: fix return value check in mlx5e_ipsec_remove_trailer()
bpf: Add length check for SK_DIAG_BPF_STORAGE_REQ_MAP_FD parsing
rtnetlink: let rtnl_bridge_setlink checks IFLA_BRIDGE_MODE length
net: dsa: fix value check in bcm_sf2_sw_probe()
perf test uprobe_from_different_cu: Skip if there is no gcc
net: sched: cls_u32: Fix match key mis-addressing
mISDN: hfcpci: Fix potential deadlock on &hc->lock
net: annotate data-races around sk->sk_max_pacing_rate
net: add missing READ_ONCE(sk->sk_rcvlowat) annotation
net: add missing READ_ONCE(sk->sk_sndbuf) annotation
net: add missing READ_ONCE(sk->sk_rcvbuf) annotation
net: add missing data-race annotations around sk->sk_peek_off
net: add missing data-race annotation for sk_ll_usec
net/sched: cls_u32: No longer copy tcf_result on update to avoid use-after-free
net/sched: cls_fw: No longer copy tcf_result on update to avoid use-after-free
net/sched: cls_route: No longer copy tcf_result on update to avoid use-after-free
bpf: sockmap: Remove preempt_disable in sock_map_sk_acquire
net: ll_temac: Switch to use dev_err_probe() helper
net: ll_temac: fix error checking of irq_of_parse_and_map()
net: netsec: Ignore 'phy-mode' on SynQuacer in DT mode
net: dcb: choose correct policy to parse DCB_ATTR_BCN
s390/qeth: Don't call dev_close/dev_open (DOWN/UP)
ip6mr: Fix skb_under_panic in ip6mr_cache_report()
vxlan: Fix nexthop hash size
net/mlx5: fs_core: Make find_closest_ft more generic
net/mlx5: fs_core: Skip the FTs in the same FS_TYPE_PRIO_CHAINS fs_prio
tcp_metrics: fix addr_same() helper
tcp_metrics: annotate data-races around tm->tcpm_stamp
tcp_metrics: annotate data-races around tm->tcpm_lock
tcp_metrics: annotate data-races around tm->tcpm_vals[]
tcp_metrics: annotate data-races around tm->tcpm_net
tcp_metrics: fix data-race in tcpm_suck_dst() vs fastopen
scsi: zfcp: Defer fc_rport blocking until after ADISC response
libceph: fix potential hang in ceph_osdc_notify()
USB: zaurus: Add ID for A-300/B-500/C-700
ceph: defer stopping mdsc delayed_work
exfat: use kvmalloc_array/kvfree instead of kmalloc_array/kfree
exfat: release s_lock before calling dir_emit()
mtd: spinand: toshiba: Fix ecc_get_status
mtd: rawnand: meson: fix OOB available bytes for ECC
arm64: dts: stratix10: fix incorrect I2C property for SCL signal
net: tun_chr_open(): set sk_uid from current_fsuid()
net: tap_open(): set sk_uid from current_fsuid()
bpf: Disable preemption in bpf_event_output
open: make RESOLVE_CACHED correctly test for O_TMPFILE
drm/ttm: check null pointer before accessing when swapping
file: reinstate f_pos locking optimization for regular files
tracing: Fix sleeping while atomic in kdb ftdump
fs/sysv: Null check to prevent null-ptr-deref bug
Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_ready_cb
net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb
fs: Protect reconfiguration of sb read-write from racing writes
ext2: Drop fragment support
mtd: rawnand: omap_elm: Fix incorrect type in assignment
mtd: rawnand: fsl_upm: Fix an off-by one test in fun_exec_op()
powerpc/mm/altmap: Fix altmap boundary check
selftests/rseq: check if libc rseq support is registered
selftests/rseq: Play nice with binaries statically linked against glibc 2.35+
soundwire: bus: add better dev_dbg to track complete() calls
soundwire: bus: pm_runtime_request_resume on peripheral attachment
soundwire: fix enumeration completion
PM / wakeirq: support enabling wake-up irq after runtime_suspend called
PM: sleep: wakeirq: fix wake irq arming
exfat: speed up iterate/lookup by fixing start point of traversing cluster chain
exfat: support dynamic allocate bh for exfat_entry_set_cache
exfat: check if filename entries exceeds max filename length
mt76: move band capabilities in mt76_phy
mt76: mt7615: Fix fall-through warnings for Clang
wifi: mt76: mt7615: do not advertise 5 GHz on first phy of MT7615D (DBDC)
ARM: dts: imx: add usb alias
ARM: dts: imx6sll: fixup of operating points
ARM: dts: nxp/imx6sll: fix wrong property name in usbphy node
x86/CPU/AMD: Do not leak quotient data after a division by 0
Linux 5.10.190
Fix up build problem in ext4 due to merge of
|
||
Aleksa Sarai
|
c9c78b91c7 |
open: make RESOLVE_CACHED correctly test for O_TMPFILE
commit a0fc452a5d7fed986205539259df1d60546f536c upstream. O_TMPFILE is actually __O_TMPFILE|O_DIRECTORY. This means that the old fast-path check for RESOLVE_CACHED would reject all users passing O_DIRECTORY with -EAGAIN, when in fact the intended test was to check for __O_TMPFILE. Cc: stable@vger.kernel.org # v5.12+ Fixes: 99668f618062 ("fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED") Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> Message-Id: <20230806-resolve_cached-o_tmpfile-v1-1-7ba16308465e@cyphar.com> Signed-off-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Greg Kroah-Hartman
|
df23049a96 |
This is the 5.10.176 stable release
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmQa9NgACgkQONu9yGCS aT4Iew//X/3+Bpiu+FyaYe0NZ4I95rQvNh4fG6wXCFd/PVbCRpxVOAKQ91GnkU+D iMeuGBPqkpPhHvesRybsq0u8GmJ+fJj58+fgy1ABI7UzkWihzNDu1n2RntYmuRvl TEEsAIS+6/lhVKosDhyYcXAL5eT8F06zFOI9HspWRe+lYoRBIQyykcLgZQwt5mBX qyKAFkvhH0Z77ATiID5alRkVArgi/t3qBUANTrJ7LqOlhtY42EOS0Sp7wpZWskqI 7Mpb6pfODsOq5d+6zNvZzdrtMaKRBal0Inxj2+zLEYdSv+xbTqp4Cb6UI18gJTA7 zsvItAzTRxp+7KiZVS2HP3uMRRV4lQ5HxgMJhSsONHSSRh7ndhkW7NQq/o/dRFm2 IgVf1beHk2pE+LN0Plf2oQCOMV8h/vQRZLCejoQEbFy6oNQ6bA4btJaXZnfluqDb KXONyDqXZ3uX3DSrKO4pCNCTsm5JhinkFHhO125kjSkPp/k2YWXdnBftQT1mWPYf dbWu1z/E+3qvObedwNn+icuu/MUznZMTYwDOD31tJp+1iEBgeBQWI+IRaIaWbDyD dxSoV8cScNZz+X4M70EFlwJMYL/VcIzDljeH2EA3CImDycDH0tspo6z8Z+xFhsrg D1wshmaT9XkSEJ92xDMw82B/1noOati75HpkUW1W/PKTqvjH/uU= =/t/A -----END PGP SIGNATURE----- Merge 5.10.176 into android12-5.10-lts Changes in 5.10.176 xfrm: Allow transport-mode states with AF_UNSPEC selector drm/panfrost: Don't sync rpm suspension after mmu flushing cifs: Move the in_send statistic to __smb_send_rqst() drm/meson: fix 1px pink line on GXM when scaling video overlay clk: HI655X: select REGMAP instead of depending on it docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate scsi: mpt3sas: Fix NULL pointer access in mpt3sas_transport_port_add() ALSA: hda: Match only Intel devices with CONTROLLER_IN_GPU() netfilter: nft_nat: correct length for loading protocol registers netfilter: nft_masq: correct length for loading protocol registers netfilter: nft_redir: correct length for loading protocol registers netfilter: nft_redir: correct value of inet type `.maxattrs` scsi: core: Fix a comment in function scsi_host_dev_release() scsi: core: Fix a procfs host directory removal regression tcp: tcp_make_synack() can be called from process context nfc: pn533: initialize struct pn533_out_arg properly ipvlan: Make skb->skb_iif track skb->dev for l3s mode i40e: Fix kernel crash during reboot when adapter is in recovery mode net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler() qed/qed_dev: guard against a possible division by zero net: tunnels: annotate lockless accesses to dev->needed_headroom net: phy: smsc: bail out in lan87xx_read_status if genphy_read_status fails nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition net/smc: fix deadlock triggered by cancel_delayed_work_syn() net: usb: smsc75xx: Limit packet length to skb->len drm/bridge: Fix returned array size name for atomic_get_input_bus_fmts kdoc null_blk: Move driver into its own directory block: null_blk: Fix handling of fake timeout request nvme: fix handling single range discard request nvmet: avoid potential UAF in nvmet_req_complete() block: sunvdc: add check for mdesc_grab() returning NULL ice: xsk: disable txq irq before flushing hw net: dsa: mv88e6xxx: fix max_mtu of 1492 on 6165, 6191, 6220, 6250, 6290 ipv4: Fix incorrect table ID in IOCTL path net: usb: smsc75xx: Move packet length check to prevent kernel panic in skb_pull net/iucv: Fix size of interrupt data selftests: net: devlink_port_split.py: skip test if no suitable device available qed/qed_mng_tlv: correctly zero out ->min instead of ->hour ethernet: sun: add check for the mdesc_grab() hwmon: (adt7475) Display smoothing attributes in correct order hwmon: (adt7475) Fix masking of hysteresis registers hwmon: (xgene) Fix use after free bug in xgene_hwmon_remove due to race condition hwmon: (ina3221) return prober error code hwmon: (ucd90320) Add minimum delay between bus accesses hwmon: tmp512: drop of_match_ptr for ID table hwmon: (adm1266) Set `can_sleep` flag for GPIO chip media: m5mols: fix off-by-one loop termination error mmc: atmel-mci: fix race between stop command and start of next command jffs2: correct logic when creating a hole in jffs2_write_begin ext4: fail ext4_iget if special inode unallocated ext4: fix task hung in ext4_xattr_delete_inode drm/amdkfd: Fix an illegal memory access sh: intc: Avoid spurious sizeof-pointer-div warning drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes ext4: fix possible double unlock when moving a directory tty: serial: fsl_lpuart: skip waiting for transmission complete when UARTCTRL_SBK is asserted serial: 8250_em: Fix UART port type firmware: xilinx: don't make a sleepable memory allocation from an atomic context interconnect: fix mem leak when freeing nodes tracing: Make splice_read available again tracing: Check field value in hist_field_name() tracing: Make tracepoint lockdep check actually test something cifs: Fix smb2_set_path_size() KVM: nVMX: add missing consistency checks for CR0 and CR4 ALSA: hda: intel-dsp-config: add MTL PCI id ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book2 Pro drm/shmem-helper: Remove another errant put in error path mptcp: avoid setting TCP_CLOSE state twice ftrace: Fix invalid address access in lookup_rec() when index is 0 mm/userfaultfd: propagate uffd-wp bit when PTE-mapping the huge zeropage mmc: sdhci_am654: lower power-on failed message severity fbdev: stifb: Provide valid pixelclock and add fb_check_var() checks cpuidle: psci: Iterate backwards over list in psci_pd_remove() x86/mce: Make sure logged MCEs are processed after sysfs update x86/mm: Fix use of uninitialized buffer in sme_enable() drm/i915: Don't use stolen memory for ring buffers with LLC drm/i915/active: Fix misuse of non-idle barriers as fence trackers io_uring: avoid null-ptr-deref in io_arm_poll_handler s390/ipl: add missing intersection check to ipl_report handling PCI: Unify delay handling for reset and resume PCI/DPC: Await readiness of secondary bus after reset xfs: don't assert fail on perag references on teardown xfs: purge dquots after inode walk fails during quotacheck xfs: don't leak btree cursor when insrec fails after a split xfs: remove XFS_PREALLOC_SYNC xfs: fallocate() should call file_modified() xfs: set prealloc flag in xfs_alloc_file_space() xfs: use setattr_copy to set vfs inode attributes fs: add mode_strip_sgid() helper fs: move S_ISGID stripping into the vfs_*() helpers attr: add in_group_or_capable() fs: move should_remove_suid() attr: add setattr_should_drop_sgid() attr: use consistent sgid stripping checks fs: use consistent setgid checks in is_sxid() xfs: remove xfs_setattr_time() declaration HID: core: Provide new max_buffer_size attribute to over-ride the default HID: uhid: Over-ride the default maximum data buffer value with our own Linux 5.10.176 Change-Id: Icd45189f4182c749d1758c13e18705abb4ea9c5a Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
Amir Goldstein
|
0e9dbde96c |
attr: use consistent sgid stripping checks
commit ed5a7047d2011cb6b2bf84ceb6680124cc6a7d95 upstream.
[backported to 5.10.y, prior to idmapped mounts]
Currently setgid stripping in file_remove_privs()'s should_remove_suid()
helper is inconsistent with other parts of the vfs. Specifically, it only
raises ATTR_KILL_SGID if the inode is S_ISGID and S_IXGRP but not if the
inode isn't in the caller's groups and the caller isn't privileged over the
inode although we require this already in setattr_prepare() and
setattr_copy() and so all filesystem implement this requirement implicitly
because they have to use setattr_{prepare,copy}() anyway.
But the inconsistency shows up in setgid stripping bugs for overlayfs in
xfstests (e.g., generic/673, generic/683, generic/685, generic/686,
generic/687). For example, we test whether suid and setgid stripping works
correctly when performing various write-like operations as an unprivileged
user (fallocate, reflink, write, etc.):
echo "Test 1 - qa_user, non-exec file $verb"
setup_testfile
chmod a+rws $junk_file
commit_and_check "$qa_user" "$verb" 64k 64k
The test basically creates a file with 6666 permissions. While the file has
the S_ISUID and S_ISGID bits set it does not have the S_IXGRP set. On a
regular filesystem like xfs what will happen is:
sys_fallocate()
-> vfs_fallocate()
-> xfs_file_fallocate()
-> file_modified()
-> __file_remove_privs()
-> dentry_needs_remove_privs()
-> should_remove_suid()
-> __remove_privs()
newattrs.ia_valid = ATTR_FORCE | kill;
-> notify_change()
-> setattr_copy()
In should_remove_suid() we can see that ATTR_KILL_SUID is raised
unconditionally because the file in the test has S_ISUID set.
But we also see that ATTR_KILL_SGID won't be set because while the file
is S_ISGID it is not S_IXGRP (see above) which is a condition for
ATTR_KILL_SGID being raised.
So by the time we call notify_change() we have attr->ia_valid set to
ATTR_KILL_SUID | ATTR_FORCE. Now notify_change() sees that
ATTR_KILL_SUID is set and does:
ia_valid = attr->ia_valid |= ATTR_MODE
attr->ia_mode = (inode->i_mode & ~S_ISUID);
which means that when we call setattr_copy() later we will definitely
update inode->i_mode. Note that attr->ia_mode still contains S_ISGID.
Now we call into the filesystem's ->setattr() inode operation which will
end up calling setattr_copy(). Since ATTR_MODE is set we will hit:
if (ia_valid & ATTR_MODE) {
umode_t mode = attr->ia_mode;
vfsgid_t vfsgid = i_gid_into_vfsgid(mnt_userns, inode);
if (!vfsgid_in_group_p(vfsgid) &&
!capable_wrt_inode_uidgid(mnt_userns, inode, CAP_FSETID))
mode &= ~S_ISGID;
inode->i_mode = mode;
}
and since the caller in the test is neither capable nor in the group of the
inode the S_ISGID bit is stripped.
But assume the file isn't suid then ATTR_KILL_SUID won't be raised which
has the consequence that neither the setgid nor the suid bits are stripped
even though it should be stripped because the inode isn't in the caller's
groups and the caller isn't privileged over the inode.
If overlayfs is in the mix things become a bit more complicated and the bug
shows up more clearly. When e.g., ovl_setattr() is hit from
ovl_fallocate()'s call to file_remove_privs() then ATTR_KILL_SUID and
ATTR_KILL_SGID might be raised but because the check in notify_change() is
questioning the ATTR_KILL_SGID flag again by requiring S_IXGRP for it to be
stripped the S_ISGID bit isn't removed even though it should be stripped:
sys_fallocate()
-> vfs_fallocate()
-> ovl_fallocate()
-> file_remove_privs()
-> dentry_needs_remove_privs()
-> should_remove_suid()
-> __remove_privs()
newattrs.ia_valid = ATTR_FORCE | kill;
-> notify_change()
-> ovl_setattr()
// TAKE ON MOUNTER'S CREDS
-> ovl_do_notify_change()
-> notify_change()
// GIVE UP MOUNTER'S CREDS
// TAKE ON MOUNTER'S CREDS
-> vfs_fallocate()
-> xfs_file_fallocate()
-> file_modified()
-> __file_remove_privs()
-> dentry_needs_remove_privs()
-> should_remove_suid()
-> __remove_privs()
newattrs.ia_valid = attr_force | kill;
-> notify_change()
The fix for all of this is to make file_remove_privs()'s
should_remove_suid() helper to perform the same checks as we already
require in setattr_prepare() and setattr_copy() and have notify_change()
not pointlessly requiring S_IXGRP again. It doesn't make any sense in the
first place because the caller must calculate the flags via
should_remove_suid() anyway which would raise ATTR_KILL_SGID.
While we're at it we move should_remove_suid() from inode.c to attr.c
where it belongs with the rest of the iattr helpers. Especially since it
returns ATTR_KILL_S{G,U}ID flags. We also rename it to
setattr_should_drop_suidgid() to better reflect that it indicates both
setuid and setgid bit removal and also that it returns attr flags.
Running xfstests with this doesn't report any regressions. We should really
try and use consistent checks.
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
Greg Kroah-Hartman
|
8596b99884 |
Merge 5.10.162 into android12-5.10-lts
Changes in 5.10.162 kernel: provide create_io_thread() helper iov_iter: add helper to save iov_iter state saner calling conventions for unlazy_child() fs: add support for LOOKUP_CACHED fix handling of nd->depth on LOOKUP_CACHED failures in try_to_unlazy* Make sure nd->path.mnt and nd->path.dentry are always valid pointers fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED tools headers UAPI: Sync openat2.h with the kernel sources net: provide __sys_shutdown_sock() that takes a socket net: add accept helper not installing fd signal: Add task_sigpending() helper fs: make do_renameat2() take struct filename file: Rename __close_fd_get_file close_fd_get_file fs: provide locked helper variant of close_fd_get_file() entry: Add support for TIF_NOTIFY_SIGNAL task_work: Use TIF_NOTIFY_SIGNAL if available x86: Wire up TIF_NOTIFY_SIGNAL arc: add support for TIF_NOTIFY_SIGNAL arm64: add support for TIF_NOTIFY_SIGNAL m68k: add support for TIF_NOTIFY_SIGNAL nios32: add support for TIF_NOTIFY_SIGNAL parisc: add support for TIF_NOTIFY_SIGNAL powerpc: add support for TIF_NOTIFY_SIGNAL mips: add support for TIF_NOTIFY_SIGNAL s390: add support for TIF_NOTIFY_SIGNAL um: add support for TIF_NOTIFY_SIGNAL sh: add support for TIF_NOTIFY_SIGNAL openrisc: add support for TIF_NOTIFY_SIGNAL csky: add support for TIF_NOTIFY_SIGNAL hexagon: add support for TIF_NOTIFY_SIGNAL microblaze: add support for TIF_NOTIFY_SIGNAL arm: add support for TIF_NOTIFY_SIGNAL xtensa: add support for TIF_NOTIFY_SIGNAL alpha: add support for TIF_NOTIFY_SIGNAL c6x: add support for TIF_NOTIFY_SIGNAL h8300: add support for TIF_NOTIFY_SIGNAL ia64: add support for TIF_NOTIFY_SIGNAL nds32: add support for TIF_NOTIFY_SIGNAL riscv: add support for TIF_NOTIFY_SIGNAL sparc: add support for TIF_NOTIFY_SIGNAL ia64: don't call handle_signal() unless there's actually a signal queued ARC: unbork 5.11 bootup: fix snafu in _TIF_NOTIFY_SIGNAL handling alpha: fix TIF_NOTIFY_SIGNAL handling task_work: remove legacy TWA_SIGNAL path kernel: remove checking for TIF_NOTIFY_SIGNAL coredump: Limit what can interrupt coredumps kernel: allow fork with TIF_NOTIFY_SIGNAL pending entry/kvm: Exit to user mode when TIF_NOTIFY_SIGNAL is set arch: setup PF_IO_WORKER threads like PF_KTHREAD arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread() x86/process: setup io_threads more like normal user space threads kernel: stop masking signals in create_io_thread() kernel: don't call do_exit() for PF_IO_WORKER threads task_work: add helper for more targeted task_work canceling io_uring: import 5.15-stable io_uring signal: kill JOBCTL_TASK_WORK task_work: unconditionally run task_work from get_signal() net: remove cmsg restriction from io_uring based send/recvmsg calls Revert "proc: don't allow async path resolution of /proc/thread-self components" Revert "proc: don't allow async path resolution of /proc/self components" eventpoll: add EPOLL_URING_WAKE poll wakeup flag eventfd: provide a eventfd_signal_mask() helper io_uring: pass in EPOLL_URING_WAKE for eventfd signaling and wakeups Linux 5.10.162 Change-Id: I50a7b8bc8d38fac612113281b218cf5323b0af5e Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
Jens Axboe
|
5683caa735 |
fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED
[ Upstream commit 99668f618062816ca7ba639b007eb145b9d3d41e ] Now that we support non-blocking path resolution internally, expose it via openat2() in the struct open_how ->resolve flags. This allows applications using openat2() to limit path resolution to the extent that it is already cached. If the lookup cannot be satisfied in a non-blocking manner, openat2(2) will return -1/-EAGAIN. Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Greg Kroah-Hartman
|
d483eed85f |
ANDROID: GKI: set vfs-only exports into their own namespace
We have namespaces, so use them for all vfs-exported namespaces so that filesystems can use them, but not anything else. Some in-kernel drivers that do direct filesystem accesses (because they serve up files) are also allowed access to these symbols to keep 'make allmodconfig' builds working properly, but it is not needed for Android kernel images. Bug: 157965270 Bug: 210074446 Cc: Matthias Maennich <maennich@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Iaf6140baf3a18a516ab2d5c3966235c42f3f70de |
||
|
Greg Kroah-Hartman
|
2df0fb4a4b |
This is the 5.10.50 stable release
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Merge 5.10.50 into android12-5.10-lts
Changes in 5.10.50
Bluetooth: hci_qca: fix potential GPF
Bluetooth: btqca: Don't modify firmware contents in-place
Bluetooth: Remove spurious error message
ALSA: usb-audio: fix rate on Ozone Z90 USB headset
ALSA: usb-audio: Fix OOB access at proc output
ALSA: firewire-motu: fix stream format for MOTU 8pre FireWire
ALSA: usb-audio: scarlett2: Fix wrong resume call
ALSA: intel8x0: Fix breakage at ac97 clock measurement
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8
ALSA: hda/realtek: Add another ALC236 variant support
ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook x360 830 G8
ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx
ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D
ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too
ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC
media: dvb-usb: fix wrong definition
Input: usbtouchscreen - fix control-request directions
net: can: ems_usb: fix use-after-free in ems_usb_disconnect()
usb: gadget: eem: fix echo command packet response issue
usb: renesas-xhci: Fix handling of unknown ROM state
USB: cdc-acm: blacklist Heimann USB Appset device
usb: dwc3: Fix debugfs creation flow
usb: typec: Add the missed altmode_id_remove() in typec_register_altmode()
xhci: solve a double free problem while doing s4
gfs2: Fix underflow in gfs2_page_mkwrite
gfs2: Fix error handling in init_statfs
ntfs: fix validity check for file name attribute
selftests/lkdtm: Avoid needing explicit sub-shell
copy_page_to_iter(): fix ITER_DISCARD case
iov_iter_fault_in_readable() should do nothing in xarray case
Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
crypto: nx - Fix memcpy() over-reading in nonce
crypto: ccp - Annotate SEV Firmware file names
arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
ARM: dts: ux500: Fix LED probing
ARM: dts: at91: sama5d4: fix pinctrl muxing
btrfs: send: fix invalid path for unlink operations after parent orphanization
btrfs: compression: don't try to compress if we don't have enough pages
btrfs: clear defrag status of a root if starting transaction fails
ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle
ext4: fix kernel infoleak via ext4_extent_header
ext4: fix overflow in ext4_iomap_alloc()
ext4: return error code when ext4_fill_flex_info() fails
ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
ext4: remove check for zero nr_to_scan in ext4_es_scan()
ext4: fix avefreec in find_group_orlov
ext4: use ext4_grp_locked_error in mb_find_extent
can: bcm: delay release of struct bcm_op after synchronize_rcu()
can: gw: synchronize rcu operations before removing gw job entry
can: isotp: isotp_release(): omit unintended hrtimer restart on socket release
can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done
can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path
mac80211: remove iwlwifi specific workaround that broke sta NDP tx
SUNRPC: Fix the batch tasks count wraparound.
SUNRPC: Should wake up the privileged task firstly.
bus: mhi: Wait for M2 state during system resume
mm/gup: fix try_grab_compound_head() race with split_huge_page()
perf/smmuv3: Don't trample existing events with global filter
KVM: nVMX: Handle split-lock #AC exceptions that happen in L2
KVM: PPC: Book3S HV: Workaround high stack usage with clang
KVM: x86/mmu: Treat NX as used (not reserved) for all !TDP shadow MMUs
KVM: x86/mmu: Use MMU's role to detect CR4.SMEP value in nested NPT walk
s390/cio: dont call css_wait_for_slow_path() inside a lock
s390: mm: Fix secure storage access exception handling
f2fs: Prevent swap file in LFS mode
clk: agilex/stratix10/n5x: fix how the bypass_reg is handled
clk: agilex/stratix10: remove noc_clk
clk: agilex/stratix10: fix bypass representation
rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
iio: frequency: adf4350: disable reg and clk on error in adf4350_probe()
iio: light: tcs3472: do not free unallocated IRQ
iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too
iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR
iio: ltr501: ltr501_read_ps(): add missing endianness conversion
iio: accel: bma180: Fix BMA25x bandwidth register values
serial: mvebu-uart: fix calculation of clock divisor
serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
serial_cs: Add Option International GSM-Ready 56K/ISDN modem
serial_cs: remove wrong GLOBETROTTER.cis entry
ath9k: Fix kernel NULL pointer dereference during ath_reset_internal()
ssb: sdio: Don't overwrite const buffer if block_write fails
rsi: Assign beacon rate settings to the correct rate_info descriptor field
rsi: fix AP mode with WPA failure due to encrypted EAPOL
tracing/histograms: Fix parsing of "sym-offset" modifier
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
seq_buf: Make trace_seq_putmem_hex() support data longer than 8
powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
loop: Fix missing discard support when using LOOP_CONFIGURE
evm: Execute evm_inode_init_security() only when an HMAC key is loaded
evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
fuse: Fix crash in fuse_dentry_automount() error path
fuse: Fix crash if superblock of submount gets killed early
fuse: Fix infinite loop in sget_fc()
fuse: ignore PG_workingset after stealing
fuse: check connected before queueing on fpq->io
fuse: reject internal errno
thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure
spi: Make of_register_spi_device also set the fwnode
Add a reference to ucounts for each cred
staging: media: rkvdec: fix pm_runtime_get_sync() usage count
media: marvel-ccic: fix some issues when getting pm_runtime
media: mdk-mdp: fix pm_runtime_get_sync() usage count
media: s5p: fix pm_runtime_get_sync() usage count
media: am437x: fix pm_runtime_get_sync() usage count
media: sh_vou: fix pm_runtime_get_sync() usage count
media: mtk-vcodec: fix PM runtime get logic
media: s5p-jpeg: fix pm_runtime_get_sync() usage count
media: sunxi: fix pm_runtime_get_sync() usage count
media: sti/bdisp: fix pm_runtime_get_sync() usage count
media: exynos4-is: fix pm_runtime_get_sync() usage count
media: exynos-gsc: fix pm_runtime_get_sync() usage count
spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf'
spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
spi: omap-100k: Fix the length judgment problem
regulator: uniphier: Add missing MODULE_DEVICE_TABLE
sched/core: Initialize the idle task with preemption disabled
hwrng: exynos - Fix runtime PM imbalance on error
crypto: nx - add missing MODULE_DEVICE_TABLE
media: sti: fix obj-$(config) targets
media: cpia2: fix memory leak in cpia2_usb_probe
media: cobalt: fix race condition in setting HPD
media: hevc: Fix dependent slice segment flags
media: pvrusb2: fix warning in pvr2_i2c_core_done
media: imx: imx7_mipi_csis: Fix logging of only error event counters
crypto: qat - check return code of qat_hal_rd_rel_reg()
crypto: qat - remove unused macro in FW loader
crypto: qce: skcipher: Fix incorrect sg count for dma transfers
arm64: perf: Convert snprintf to sysfs_emit
sched/fair: Fix ascii art by relpacing tabs
media: i2c: ov2659: Use clk_{prepare_enable,disable_unprepare}() to set xvclk on/off
media: bt878: do not schedule tasklet when it is not setup
media: em28xx: Fix possible memory leak of em28xx struct
media: hantro: Fix .buf_prepare
media: cedrus: Fix .buf_prepare
media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
media: bt8xx: Fix a missing check bug in bt878_probe
media: st-hva: Fix potential NULL pointer dereferences
crypto: hisilicon/sec - fixup 3des minimum key size declaration
Makefile: fix GDB warning with CONFIG_RELR
media: dvd_usb: memory leak in cinergyt2_fe_attach
memstick: rtsx_usb_ms: fix UAF
mmc: sdhci-sprd: use sdhci_sprd_writew
mmc: via-sdmmc: add a check against NULL pointer dereference
spi: meson-spicc: fix a wrong goto jump for avoiding memory leak.
spi: meson-spicc: fix memory leak in meson_spicc_probe
crypto: shash - avoid comparing pointers to exported functions under CFI
media: dvb_net: avoid speculation from net slot
media: siano: fix device register error path
media: imx-csi: Skip first few frames from a BT.656 source
hwmon: (max31790) Report correct current pwm duty cycles
hwmon: (max31790) Fix pwmX_enable attributes
drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors
btrfs: fix error handling in __btrfs_update_delayed_inode
btrfs: abort transaction if we fail to update the delayed inode
btrfs: sysfs: fix format string for some discard stats
btrfs: don't clear page extent mapped if we're not invalidating the full page
btrfs: disable build on platforms having page size 256K
locking/lockdep: Fix the dep path printing for backwards BFS
lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
KVM: s390: get rid of register asm usage
regulator: mt6358: Fix vdram2 .vsel_mask
regulator: da9052: Ensure enough delay time for .set_voltage_time_sel
media: Fix Media Controller API config checks
ACPI: video: use native backlight for GA401/GA502/GA503
HID: do not use down_interruptible() when unbinding devices
EDAC/ti: Add missing MODULE_DEVICE_TABLE
ACPI: processor idle: Fix up C-state latency if not ordered
hv_utils: Fix passing zero to 'PTR_ERR' warning
lib: vsprintf: Fix handling of number field widths in vsscanf
Input: goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
platform/x86: touchscreen_dmi: Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
platform/x86: touchscreen_dmi: Add info for the Goodix GT912 panel of TM800A550L tablets
ACPI: EC: Make more Asus laptops use ECDT _GPE
block_dump: remove block_dump feature in mark_inode_dirty()
blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter
blk-mq: clear stale request in tags->rq[] before freeing one request pool
fs: dlm: cancel work sync othercon
random32: Fix implicit truncation warning in prandom_seed_state()
open: don't silently ignore unknown O-flags in openat2()
drivers: hv: Fix missing error code in vmbus_connect()
fs: dlm: fix memory leak when fenced
ACPICA: Fix memory leak caused by _CID repair function
ACPI: bus: Call kobject_put() in acpi_init() error path
ACPI: resources: Add checks for ACPI IRQ override
block: fix race between adding/removing rq qos and normal IO
platform/x86: asus-nb-wmi: Revert "Drop duplicate DMI quirk structures"
platform/x86: asus-nb-wmi: Revert "add support for ASUS ROG Zephyrus G14 and G15"
platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard()
nvme-pci: fix var. type for increasing cq_head
nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst()
EDAC/Intel: Do not load EDAC driver when running as a guest
PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
cifs: improve fallocate emulation
ACPI: EC: trust DSDT GPE for certain HP laptop
clocksource: Retry clock read if long delays detected
clocksource: Check per-CPU clock synchronization when marked unstable
tpm_tis_spi: add missing SPI device ID entries
ACPI: tables: Add custom DSDT file as makefile prerequisite
HID: wacom: Correct base usage for capacitive ExpressKey status bits
cifs: fix missing spinlock around update to ses->status
mailbox: qcom: Use PLATFORM_DEVID_AUTO to register platform device
block: fix discard request merge
kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
ia64: mca_drv: fix incorrect array size calculation
writeback, cgroup: increment isw_nr_in_flight before grabbing an inode
spi: Allow to have all native CSs in use along with GPIOs
spi: Avoid undefined behaviour when counting unused native CSs
media: venus: Rework error fail recover logic
media: s5p_cec: decrement usage count if disabled
media: hantro: do a PM resume earlier
crypto: ixp4xx - dma_unmap the correct address
crypto: ixp4xx - update IV after requests
crypto: ux500 - Fix error return code in hash_hw_final()
sata_highbank: fix deferred probing
pata_rb532_cf: fix deferred probing
media: I2C: change 'RST' to "RSET" to fix multiple build errors
sched/uclamp: Fix wrong implementation of cpu.uclamp.min
sched/uclamp: Fix locking around cpu_util_update_eff()
kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
pata_octeon_cf: avoid WARN_ON() in ata_host_activate()
evm: fix writing <securityfs>/evm overflow
x86/elf: Use _BITUL() macro in UAPI headers
crypto: sa2ul - Fix leaks on failure paths with sa_dma_init()
crypto: sa2ul - Fix pm_runtime enable in sa_ul_probe()
crypto: ccp - Fix a resource leak in an error handling path
media: rc: i2c: Fix an error message
pata_ep93xx: fix deferred probing
locking/lockdep: Reduce LOCKDEP dependency list
media: rkvdec: Fix .buf_prepare
media: exynos4-is: Fix a use after free in isp_video_release
media: au0828: fix a NULL vs IS_ERR() check
media: tc358743: Fix error return code in tc358743_probe_of()
media: gspca/gl860: fix zero-length control requests
m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning
media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
regulator: fan53880: Fix vsel_mask setting for FAN53880_BUCK
crypto: nitrox - fix unchecked variable in nitrox_register_interrupts
crypto: omap-sham - Fix PM reference leak in omap sham ops
crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit
crypto: sm2 - remove unnecessary reset operations
crypto: sm2 - fix a memory leak in sm2
mmc: usdhi6rol0: fix error return code in usdhi6_probe()
arm64: consistently use reserved_pg_dir
arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
media: subdev: remove VIDIOC_DQEVENT_TIME32 handling
media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx
hwmon: (lm70) Use device_get_match_data()
hwmon: (lm70) Revert "hwmon: (lm70) Add support for ACPI"
hwmon: (max31722) Remove non-standard ACPI device IDs
hwmon: (max31790) Fix fan speed reporting for fan7..12
KVM: nVMX: Sync all PGDs on nested transition with shadow paging
KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap
KVM: nVMX: Don't clobber nested MMU's A/D status on EPTP switch
KVM: x86/mmu: Fix return value in tdp_mmu_map_handle_target_level()
perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number
KVM: arm64: Don't zero the cycle count register when PMCR_EL0.P is set
regulator: hi655x: Fix pass wrong pointer to config.driver_data
btrfs: clear log tree recovering status if starting transaction fails
x86/sev: Make sure IRQs are disabled while GHCB is active
x86/sev: Split up runtime #VC handler for correct state tracking
sched/rt: Fix RT utilization tracking during policy change
sched/rt: Fix Deadline utilization tracking during policy change
sched/uclamp: Fix uclamp_tg_restrict()
lockdep: Fix wait-type for empty stack
lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
spi: spi-sun6i: Fix chipselect/clock bug
crypto: nx - Fix RCU warning in nx842_OF_upd_status
psi: Fix race between psi_trigger_create/destroy
media: v4l2-async: Clean v4l2_async_notifier_add_fwnode_remote_subdev
media: video-mux: Skip dangling endpoints
PM / devfreq: Add missing error code in devfreq_add_device()
ACPI: PM / fan: Put fan device IDs into separate header file
block: avoid double io accounting for flush request
nvme-pci: look for StorageD3Enable on companion ACPI device instead
ACPI: sysfs: Fix a buffer overrun problem with description_show()
mark pstore-blk as broken
clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG
extcon: extcon-max8997: Fix IRQ freeing at error path
ACPI: APEI: fix synchronous external aborts in user-mode
blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
blk-wbt: make sure throttle is enabled properly
ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros
ACPI: bgrt: Fix CFI violation
cpufreq: Make cpufreq_online() call driver->offline() on errors
blk-mq: update hctx->dispatch_busy in case of real scheduler
ocfs2: fix snprintf() checking
dax: fix ENOMEM handling in grab_mapping_entry()
mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect
mm/debug_vm_pgtable/basic: iterate over entire protection_map[]
mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage()
swap: fix do_swap_page() race with swapoff
mm/shmem: fix shmem_swapin() race with swapoff
mm: memcg/slab: properly set up gfp flags for objcg pointer array
mm: page_alloc: refactor setup_per_zone_lowmem_reserve()
mm/page_alloc: fix counting of managed_pages
xfrm: xfrm_state_mtu should return at least 1280 for ipv6
drm/bridge/sii8620: fix dependency on extcon
drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable()
drm/amd/dc: Fix a missing check bug in dm_dp_mst_detect()
drm/ast: Fix missing conversions to managed API
video: fbdev: imxfb: Fix an error message
net: mvpp2: Put fwnode in error case during ->probe()
net: pch_gbe: Propagate error from devm_gpio_request_one()
pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin
pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities
drm/vmwgfx: Mark a surface gpu-dirty after the SVGA3dCmdDXGenMips command
drm/vmwgfx: Fix cpu updates of coherent multisample surfaces
net: qrtr: ns: Fix error return code in qrtr_ns_init()
clk: meson: g12a: fix gp0 and hifi ranges
net: ftgmac100: add missing error return code in ftgmac100_probe()
drm: rockchip: set alpha_en to 0 if it is not used
drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write()
drm/rockchip: dsi: move all lane config except LCDC mux to bind()
drm/rockchip: lvds: Fix an error handling path
drm/rockchip: cdn-dp: fix sign extension on an int multiply for a u64 result
mptcp: fix pr_debug in mptcp_token_new_connect
mptcp: generate subflow hmac after mptcp_finish_join()
RDMA/srp: Fix a recently introduced memory leak
RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats
RDMA/rtrs: Do not reset hb_missed_max after re-connection
RDMA/rtrs-srv: Fix memory leak of unfreed rtrs_srv_stats object
RDMA/rtrs-srv: Fix memory leak when having multiple sessions
RDMA/rtrs-clt: Check if the queue_depth has changed during a reconnection
RDMA/rtrs-clt: Fix memory leak of not-freed sess->stats and stats->pcpu_stats
ehea: fix error return code in ehea_restart_qps()
clk: tegra30: Use 300MHz for video decoder by default
xfrm: remove the fragment check for ipv6 beet mode
net/sched: act_vlan: Fix modify to allow 0
RDMA/core: Sanitize WQ state received from the userspace
drm/pl111: depend on CONFIG_VEXPRESS_CONFIG
RDMA/rxe: Fix failure during driver load
drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
drm/vc4: hdmi: Fix error path of hpd-gpios
clk: vc5: fix output disabling when enabling a FOD
drm: qxl: ensure surf.data is ininitialized
tools/bpftool: Fix error return code in do_batch()
ath10k: go to path err_unsupported when chip id is not supported
ath10k: add missing error return code in ath10k_pci_probe()
wireless: carl9170: fix LEDS build errors & warnings
ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others
clk: imx8mq: remove SYS PLL 1/2 clock gates
wcn36xx: Move hal_buf allocation to devm_kmalloc in probe
ssb: Fix error return code in ssb_bus_scan()
brcmfmac: fix setting of station info chains bitmask
brcmfmac: correctly report average RSSI in station info
brcmfmac: Fix a double-free in brcmf_sdio_bus_reset
brcmsmac: mac80211_if: Fix a resource leak in an error handling path
cw1200: Revert unnecessary patches that fix unreal use-after-free bugs
ath11k: Fix an error handling path in ath11k_core_fetch_board_data_api_n()
ath10k: Fix an error code in ath10k_add_interface()
ath11k: send beacon template after vdev_start/restart during csa
netlabel: Fix memory leak in netlbl_mgmt_add_common
RDMA/mlx5: Don't add slave port to unaffiliated list
netfilter: nft_exthdr: check for IPv6 packet before further processing
netfilter: nft_osf: check for TCP packet before further processing
netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols
RDMA/rxe: Fix qp reference counting for atomic ops
selftests/bpf: Whitelist test_progs.h from .gitignore
xsk: Fix missing validation for skb and unaligned mode
xsk: Fix broken Tx ring validation
bpf: Fix libelf endian handling in resolv_btfids
RDMA/rtrs-srv: Set minimal max_send_wr and max_recv_wr
samples/bpf: Fix Segmentation fault for xdp_redirect command
samples/bpf: Fix the error return code of xdp_redirect's main()
mt76: fix possible NULL pointer dereference in mt76_tx
mt76: mt7615: fix NULL pointer dereference in tx_prepare_skb()
net: ethernet: aeroflex: fix UAF in greth_of_remove
net: ethernet: ezchip: fix UAF in nps_enet_remove
net: ethernet: ezchip: fix error handling
vrf: do not push non-ND strict packets with a source LLA through packet taps again
net: sched: add barrier to ensure correct ordering for lockless qdisc
tls: prevent oversized sendfile() hangs by ignoring MSG_MORE
netfilter: nf_tables_offload: check FLOW_DISSECTOR_KEY_BASIC in VLAN transfer logic
pkt_sched: sch_qfq: fix qfq_change_class() error path
xfrm: Fix xfrm offload fallback fail case
iwlwifi: increase PNVM load timeout
rtw88: 8822c: fix lc calibration timing
vxlan: add missing rcu_read_lock() in neigh_reduce()
ip6_tunnel: fix GRE6 segmentation
net/ipv4: swap flow ports when validating source
net: ti: am65-cpsw-nuss: Fix crash when changing number of TX queues
tc-testing: fix list handling
ieee802154: hwsim: Fix memory leak in hwsim_add_one
ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl()
bpf: Fix null ptr deref with mixed tail calls and subprogs
drm/msm: Fix error return code in msm_drm_init()
drm/msm/dpu: Fix error return code in dpu_mdss_init()
mac80211: remove iwlwifi specific workaround NDPs of null_response
net: bcmgenet: Fix attaching to PYH failed on RPi 4B
ipv6: exthdrs: do not blindly use init_net
can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0
bpf: Do not change gso_size during bpf_skb_change_proto()
i40e: Fix error handling in i40e_vsi_open
i40e: Fix autoneg disabling for non-10GBaseT links
i40e: Fix missing rtnl locking when setting up pf switch
Revert "ibmvnic: remove duplicate napi_schedule call in open function"
ibmvnic: set ltb->buff to NULL after freeing
ibmvnic: free tx_pool if tso_pool alloc fails
RDMA/cma: Protect RMW with qp_mutex
net: macsec: fix the length used to copy the key for offloading
net: phy: mscc: fix macsec key length
net: atlantic: fix the macsec key length
ipv6: fix out-of-bound access in ip6_parse_tlv()
e1000e: Check the PCIm state
net: dsa: sja1105: fix NULL pointer dereference in sja1105_reload_cbs()
bpfilter: Specify the log level for the kmsg message
RDMA/cma: Fix incorrect Packet Lifetime calculation
gve: Fix swapped vars when fetching max queues
Revert "be2net: disable bh with spin_lock in be_process_mcc"
Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid
Bluetooth: Fix not sending Set Extended Scan Response
Bluetooth: Fix Set Extended (Scan Response) Data
Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event
clk: actions: Fix UART clock dividers on Owl S500 SoC
clk: actions: Fix SD clocks factor table on Owl S500 SoC
clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC
clk: actions: Fix AHPPREDIV-H-AHB clock chain on Owl S500 SoC
clk: qcom: clk-alpha-pll: fix CAL_L write in alpha_pll_fabia_prepare
clk: si5341: Wait for DEVICE_READY on startup
clk: si5341: Avoid divide errors due to bogus register contents
clk: si5341: Check for input clock presence and PLL lock on startup
clk: si5341: Update initialization magic
writeback: fix obtain a reference to a freeing memcg css
net: lwtunnel: handle MTU calculation in forwading
net: sched: fix warning in tcindex_alloc_perfect_hash
net: tipc: fix FB_MTU eat two pages
RDMA/mlx5: Don't access NULL-cleared mpi pointer
RDMA/core: Always release restrack object
MIPS: Fix PKMAP with 32-bit MIPS huge page support
staging: fbtft: Rectify GPIO handling
staging: fbtft: Don't spam logs when probe is deferred
ASoC: rt5682: Disable irq on shutdown
rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread()
serial: fsl_lpuart: don't modify arbitrary data on lpuart32
serial: fsl_lpuart: remove RTSCTS handling from get_mctrl()
serial: 8250_omap: fix a timeout loop condition
tty: nozomi: Fix a resource leak in an error handling function
mwifiex: re-fix for unaligned accesses
iio: adis_buffer: do not return ints in irq handlers
iio: adis16400: do not return ints in irq handlers
iio: adis16475: do not return ints in irq handlers
iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: accel: mxc4005: Fix overread of data and alignment issue.
iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: magn: hmc5843: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: magn: bmc150: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: chemical: atlas: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: cros_ec_sensors: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe()
ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
backlight: lm3630a_bl: Put fwnode in error case during ->probe()
ASoC: rsnd: tidyup loop on rsnd_adg_clk_query()
Input: hil_kbd - fix error return code in hil_dev_connect()
perf scripting python: Fix tuple_set_u64()
mtd: partitions: redboot: seek fis-index-block in the right node
mtd: rawnand: arasan: Ensure proper configuration for the asserted target
staging: mmal-vchiq: Fix incorrect static vchiq_instance.
char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol()
firmware: stratix10-svc: Fix a resource leak in an error handling path
tty: nozomi: Fix the error handling path of 'nozomi_card_init()'
leds: class: The -ENOTSUPP should never be seen by user space
leds: lm3532: select regmap I2C API
leds: lm36274: Put fwnode in error case during ->probe()
leds: lm3692x: Put fwnode in any case during ->probe()
leds: lm3697: Don't spam logs when probe is deferred
leds: lp50xx: Put fwnode in error case during ->probe()
scsi: FlashPoint: Rename si_flags field
scsi: iscsi: Flush block work before unblock
mfd: mp2629: Select MFD_CORE to fix build error
mfd: rn5t618: Fix IRQ trigger by changing it to level mode
fsi: core: Fix return of error values on failures
fsi: scom: Reset the FSI2PIB engine for any error
fsi: occ: Don't accept response from un-initialized OCC
fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
fsi/sbefifo: Fix reset timeout
visorbus: fix error return code in visorchipset_init()
iommu/amd: Fix extended features logging
s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK
s390: enable HAVE_IOREMAP_PROT
s390: appldata depends on PROC_SYSCTL
selftests: splice: Adjust for handler fallback removal
iommu/dma: Fix IOVA reserve dma ranges
ASoC: max98373-sdw: use first_hw_init flag on resume
ASoC: rt1308-sdw: use first_hw_init flag on resume
ASoC: rt5682-sdw: use first_hw_init flag on resume
ASoC: rt700-sdw: use first_hw_init flag on resume
ASoC: rt711-sdw: use first_hw_init flag on resume
ASoC: rt715-sdw: use first_hw_init flag on resume
ASoC: rt5682: fix getting the wrong device id when the suspend_stress_test
ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID
ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()'
usb: gadget: f_fs: Fix setting of device and driver data cross-references
usb: dwc2: Don't reset the core after setting turnaround time
eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default()
iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
iio: light: vcnl4000: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
ASoC: fsl_spdif: Fix error handler with pm_runtime_enable
staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
staging: gdm724x: check for overflow in gdm_lte_netif_rx()
staging: rtl8712: fix error handling in r871xu_drv_init
staging: rtl8712: fix memory leak in rtl871x_load_fw_cb
coresight: core: Fix use of uninitialized pointer
staging: mt7621-dts: fix pci address for PCI memory range
serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
of: Fix truncation of memory sizes on 32-bit platforms
mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
habanalabs: Fix an error handling path in 'hl_pci_probe()'
scsi: mpt3sas: Fix error return value in _scsih_expander_add()
soundwire: stream: Fix test for DP prepare complete
phy: uniphier-pcie: Fix updating phy parameters
phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()
extcon: sm5502: Drop invalid register write in sm5502_reg_data
extcon: max8997: Add missing modalias string
powerpc/powernv: Fix machine check reporting of async store errors
ASoC: atmel-i2s: Fix usage of capture and playback at the same time
configfs: fix memleak in configfs_release_bin_file
ASoC: Intel: sof_sdw: add SOF_RT715_DAI_ID_FIX for AlderLake
ASoC: fsl_spdif: Fix unexpected interrupt after suspend
leds: as3645a: Fix error return code in as3645a_parse_node()
leds: ktd2692: Fix an error handling path
selftests/ftrace: fix event-no-pid on 1-core machine
serial: 8250: 8250_omap: Disable RX interrupt after DMA enable
serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
powerpc: Offline CPU in stop_this_cpu()
powerpc/papr_scm: Properly handle UUID types and API
powerpc/64s: Fix copy-paste data exposure into newly created tasks
powerpc/papr_scm: Make 'perf_stats' invisible if perf-stats unavailable
ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT_STREAM stream is found
serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
serial: mvebu-uart: correctly calculate minimal possible baudrate
arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
vfio/pci: Handle concurrent vma faults
mm/pmem: avoid inserting hugepage PTE entry with fsdax if hugepage support is disabled
mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK
mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled()
mm/huge_memory.c: don't discard hugepage if other processes are mapping it
mm/hugetlb: use helper huge_page_order and pages_per_huge_page
mm/hugetlb: remove redundant check in preparing and destroying gigantic page
hugetlb: remove prep_compound_huge_page cleanup
include/linux/huge_mm.h: remove extern keyword
mm/z3fold: fix potential memory leak in z3fold_destroy_pool()
mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page
lib/math/rational.c: fix divide by zero
selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
selftests/vm/pkeys: refill shadow register after implicit kernel write
perf llvm: Return -ENOMEM when asprintf() fails
csky: fix syscache.c fallthrough warning
csky: syscache: Fixup duplicate cache flush
exfat: handle wrong stream entry size in exfat_readdir()
scsi: fc: Correct RHBA attributes length
scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd()
mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion
fscrypt: don't ignore minor_hash when hash is 0
fscrypt: fix derivation of SipHash keys on big endian CPUs
tpm: Replace WARN_ONCE() with dev_err_once() in tpm_tis_status()
erofs: fix error return code in erofs_read_superblock()
block: return the correct bvec when checking for gaps
io_uring: fix blocking inline submission
mmc: block: Disable CMDQ on the ioctl path
mmc: vub3000: fix control-request direction
media: exynos4-is: remove a now unused integer
scsi: core: Retry I/O for Notify (Enable Spinup) Required error
crypto: qce - fix error return code in qce_skcipher_async_req_handle()
s390: preempt: Fix preempt_count initialization
cred: add missing return error code when set_cred_ucounts() failed
iommu/dma: Fix compile warning in 32-bit builds
powerpc/preempt: Don't touch the idle task's preempt_count during hotplug
Linux 5.10.50
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iec4eab24ea8eb5a6d79739a1aec8432d93a8f82c
|
||
|
Christian Brauner
|
019d04f914 |
open: don't silently ignore unknown O-flags in openat2()
[ Upstream commit cfe80306a0dd6d363934913e47c3f30d71b721e5 ]
The new openat2() syscall verifies that no unknown O-flag values are
set and returns an error to userspace if they are while the older open
syscalls like open() and openat() simply ignore unknown flag values:
#define O_FLAG_CURRENTLY_INVALID (1 << 31)
struct open_how how = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID,
.resolve = 0,
};
/* fails */
fd = openat2(-EBADF, "/dev/null", &how, sizeof(how));
/* succeeds */
fd = openat(-EBADF, "/dev/null", O_RDONLY | O_FLAG_CURRENTLY_INVALID);
However, openat2() silently truncates the upper 32 bits meaning:
#define O_FLAG_CURRENTLY_INVALID_LOWER32 (1 << 31)
#define O_FLAG_CURRENTLY_INVALID_UPPER32 (1 << 40)
struct open_how how_lowe32 = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID_LOWER32,
};
struct open_how how_upper32 = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID_UPPER32,
};
/* fails */
fd = openat2(-EBADF, "/dev/null", &how_lower32, sizeof(how_lower32));
/* succeeds */
fd = openat2(-EBADF, "/dev/null", &how_upper32, sizeof(how_upper32));
Fix this by preventing the immediate truncation in build_open_flags().
There's a snafu here though stripping FMODE_* directly from flags would
cause the upper 32 bits to be truncated as well due to integer promotion
rules since FMODE_* is unsigned int, O_* are signed ints (yuck).
In addition, struct open_flags currently defines flags to be 32 bit
which is reasonable. If we simply were to bump it to 64 bit we would
need to change a lot of code preemptively which doesn't seem worth it.
So simply add a compile-time check verifying that all currently known
O_* flags are within the 32 bit range and fail to build if they aren't
anymore.
This change shouldn't regress old open syscalls since they silently
truncate any unknown values anyway. It is a tiny semantic change for
openat2() but it is very unlikely people pass ing > 32 bit unknown flags
and the syscall is relatively new too.
Link: https://lore.kernel.org/r/20210528092417.3942079-3-brauner@kernel.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reported-by: Richard Guy Briggs <rgb@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Aleksa Sarai <cyphar@cyphar.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
Kuan-Ying Lee
|
a7a3b31d58 |
ANDROID: syscall_check: add vendor hook for open syscall
Through this vendor hook, we can get the timing to check current running task for the validation of its credential and open operation. Bug: 191291287 Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> Change-Id: Ia644ceb02dbc230ee1d25cad3630c2c3f908e41a |
||
Collin Fijalkovich
|
28b4b1588e |
FROMLIST: mm, thp: Relax the VM_DENYWRITE constraint on file-backed THPs
Transparent huge pages are supported for read-only non-shmem files,
but are only used for vmas with VM_DENYWRITE. This condition ensures that
file THPs are protected from writes while an application is running
(ETXTBSY). Any existing file THPs are then dropped from the page cache
when a file is opened for write in do_dentry_open(). Since sys_mmap
ignores MAP_DENYWRITE, this constrains the use of file THPs to vmas
produced by execve().
Systems that make heavy use of shared libraries (e.g. Android) are unable
to apply VM_DENYWRITE through the dynamic linker, preventing them from
benefiting from the resultant reduced contention on the TLB.
This patch reduces the constraint on file THPs allowing use with any
executable mapping from a file not opened for write (see
inode_is_open_for_write()). It also introduces additional conditions to
ensure that files opened for write will never be backed by file THPs.
Restricting the use of THPs to executable mappings eliminates the risk that
a read-only file later opened for write would encounter significant
latencies due to page cache truncation.
The ld linker flag '-z max-page-size=(hugepage size)' can be used to
produce executables with the necessary layout. The dynamic linker must
map these file's segments at a hugepage size aligned vma for the mapping to
be backed with THPs.
Comparison of the performance characteristics of 4KB and 2MB-backed
libraries follows; the Android dex2oat tool was used to AOT compile an
example application on a single ARM core.
4KB Pages:
==========
count event_name # count / runtime
598,995,035,942 cpu-cycles # 1.800861 GHz
81,195,620,851 raw-stall-frontend # 244.112 M/sec
347,754,466,597 iTLB-loads # 1.046 G/sec
2,970,248,900 iTLB-load-misses # 0.854122% miss rate
Total test time: 332.854998 seconds.
2MB Pages:
==========
count event_name # count / runtime
592,872,663,047 cpu-cycles # 1.800358 GHz
76,485,624,143 raw-stall-frontend # 232.261 M/sec
350,478,413,710 iTLB-loads # 1.064 G/sec
803,233,322 iTLB-load-misses # 0.229182% miss rate
Total test time: 329.826087 seconds
A check of /proc/$(pidof dex2oat64)/smaps shows THPs in use:
/apex/com.android.art/lib64/libart.so
FilePmdMapped: 4096 kB
/apex/com.android.art/lib64/libart-compiler.so
FilePmdMapped: 2048 kB
Bug: 158135888
Link: https://lore.kernel.org/patchwork/patch/1408266/
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Collin Fijalkovich <cfijalkovich@google.com>
Change-Id: I75c693a4b4e7526d374ef2c010bde3094233eef2
|
||
Alistair Delva
|
cf8f7947f2 |
ANDROID: Add filp_open_block() for zram
We currently plan to disallow use of filp_open() from drivers in GKI, however the ZRAM driver still needs it. Add a new GKI-only variant of filp_open() which only permits a block device to be opened, which can be exported instead. This keeps ZRAM working but cuts down on drivers that attempt to open and write files in kernel mode. Bug: 179220339 Change-Id: Id696b4aaf204b0499ce0a1b6416648670236e570 Signed-off-by: Alistair Delva <adelva@google.com> |
||
|
Aleksa Sarai
|
aa606ebab1 |
openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT
commit 398840f8bb935d33c64df4ec4fed77a7d24c267d upstream.
This was an oversight in the original implementation, as it makes no
sense to specify both scoping flags to the same openat2(2) invocation
(before this patch, the result of such an invocation was equivalent to
RESOLVE_IN_ROOT being ignored).
This is a userspace-visible ABI change, but the only user of openat2(2)
at the moment is LXC which doesn't specify both flags and so no
userspace programs will break as a result.
Fixes:
|
||
Kees Cook
|
633fb6ac39 |
exec: move S_ISREG() check earlier
The execve(2)/uselib(2) syscalls have always rejected non-regular files.
Recently, it was noticed that a deadlock was introduced when trying to
execute pipes, as the S_ISREG() test was happening too late. This was
fixed in commit
|
||
Linus Torvalds
|
e1ec517e18 |
Merge branch 'hch.init_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull init and set_fs() cleanups from Al Viro: "Christoph's 'getting rid of ksys_...() uses under KERNEL_DS' series" * 'hch.init_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (50 commits) init: add an init_dup helper init: add an init_utimes helper init: add an init_stat helper init: add an init_mknod helper init: add an init_mkdir helper init: add an init_symlink helper init: add an init_link helper init: add an init_eaccess helper init: add an init_chmod helper init: add an init_chown helper init: add an init_chroot helper init: add an init_chdir helper init: add an init_rmdir helper init: add an init_unlink helper init: add an init_umount helper init: add an init_mount helper init: mark create_dev as __init init: mark console_on_rootfs as __init init: initialize ramdisk_execute_command at compile time devtmpfs: refactor devtmpfsd() ... |
||
Christoph Hellwig
|
eb9d7d390e |
init: add an init_eaccess helper
Add a simple helper to check if a file exists based on kernel space file name and switch the early init code over to it. Note that this theoretically changes behavior as it always is based on the effective permissions. But during early init that doesn't make a difference. Signed-off-by: Christoph Hellwig <hch@lst.de> |
||
|
Christoph Hellwig
|
1097742efc |
init: add an init_chmod helper
Add a simple helper to chmod with a kernel space file name and switch the early init code over to it. Signed-off-by: Christoph Hellwig <hch@lst.de> |
||
|
Christoph Hellwig
|
b873498f99 |
init: add an init_chown helper
Add a simple helper to chown with a kernel space file name and switch the early init code over to it. Signed-off-by: Christoph Hellwig <hch@lst.de> |
||
|
Christoph Hellwig
|
4b7ca5014c |
init: add an init_chroot helper
Add a simple helper to chroot with a kernel space file name and switch the early init code over to it. Remove the now unused ksys_chroot. Signed-off-by: Christoph Hellwig <hch@lst.de> |
||
|
Christoph Hellwig
|
db63f1e315 |
init: add an init_chdir helper
Add a simple helper to chdir with a kernel space file name and switch the early init code over to it. Remove the now unused ksys_chdir. Signed-off-by: Christoph Hellwig <hch@lst.de> |
||
|
Christoph Hellwig
|
b25ba7c3c9 |
fs: remove ksys_fchmod
Fold it into the only remaining caller. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Christoph Hellwig
|
166e07c37c |
fs: remove ksys_open
Just open code it in the two callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Christoph Hellwig
|
9e96c8c0e9 |
fs: add a vfs_fchmod helper
Add a helper for struct file based chmode operations. To be used by the initramfs code soon. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Christoph Hellwig
|
c04011fe8c |
fs: add a vfs_fchown helper
Add a helper for struct file based chown operations. To be used by the initramfs code soon. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Christian Brauner
|
60997c3d45
|
close_range: add CLOSE_RANGE_UNSHARE
One of the use-cases of close_range() is to drop file descriptors just before
execve(). This would usually be expressed in the sequence:
unshare(CLONE_FILES);
close_range(3, ~0U);
as pointed out by Linus it might be desirable to have this be a part of
close_range() itself under a new flag CLOSE_RANGE_UNSHARE.
This expands {dup,unshare)_fd() to take a max_fds argument that indicates the
maximum number of file descriptors to copy from the old struct files. When the
user requests that all file descriptors are supposed to be closed via
close_range(min, max) then we can cap via unshare_fd(min) and hence don't need
to do any of the heavy fput() work for everything above min.
The patch makes it so that if CLOSE_RANGE_UNSHARE is requested and we do in
fact currently share our file descriptor table we create a new private copy.
We then close all fds in the requested range and finally after we're done we
install the new fd table.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
|
||
|
Christian Brauner
|
278a5fbaed
|
open: add close_range()
This adds the close_range() syscall. It allows to efficiently close a range of file descriptors up to all file descriptors of a calling task. I was contacted by FreeBSD as they wanted to have the same close_range() syscall as we proposed here. We've coordinated this and in the meantime, Kyle was fast enough to merge close_range() into FreeBSD already in April: https://reviews.freebsd.org/D21627 https://svnweb.freebsd.org/base?view=revision&revision=359836 and the current plan is to backport close_range() to FreeBSD 12.2 (cf. [2]) once its merged in Linux too. Python is in the process of switching to close_range() on FreeBSD and they are waiting on us to merge this to switch on Linux as well: https://bugs.python.org/issue38061 The syscall came up in a recent discussion around the new mount API and making new file descriptor types cloexec by default. During this discussion, Al suggested the close_range() syscall (cf. [1]). Note, a syscall in this manner has been requested by various people over time. First, it helps to close all file descriptors of an exec()ing task. This can be done safely via (quoting Al's example from [1] verbatim): /* that exec is sensitive */ unshare(CLONE_FILES); /* we don't want anything past stderr here */ close_range(3, ~0U); execve(....); The code snippet above is one way of working around the problem that file descriptors are not cloexec by default. This is aggravated by the fact that we can't just switch them over without massively regressing userspace. For a whole class of programs having an in-kernel method of closing all file descriptors is very helpful (e.g. demons, service managers, programming language standard libraries, container managers etc.). (Please note, unshare(CLONE_FILES) should only be needed if the calling task is multi-threaded and shares the file descriptor table with another thread in which case two threads could race with one thread allocating file descriptors and the other one closing them via close_range(). For the general case close_range() before the execve() is sufficient.) Second, it allows userspace to avoid implementing closing all file descriptors by parsing through /proc/<pid>/fd/* and calling close() on each file descriptor. From looking at various large(ish) userspace code bases this or similar patterns are very common in: - service managers (cf. [4]) - libcs (cf. [6]) - container runtimes (cf. [5]) - programming language runtimes/standard libraries - Python (cf. [2]) - Rust (cf. [7], [8]) As Dmitry pointed out there's even a long-standing glibc bug about missing kernel support for this task (cf. [3]). In addition, the syscall will also work for tasks that do not have procfs mounted and on kernels that do not have procfs support compiled in. In such situations the only way to make sure that all file descriptors are closed is to call close() on each file descriptor up to UINT_MAX or RLIMIT_NOFILE, OPEN_MAX trickery (cf. comment [8] on Rust). The performance is striking. For good measure, comparing the following simple close_all_fds() userspace implementation that is essentially just glibc's version in [6]: static int close_all_fds(void) { int dir_fd; DIR *dir; struct dirent *direntp; dir = opendir("/proc/self/fd"); if (!dir) return -1; dir_fd = dirfd(dir); while ((direntp = readdir(dir))) { int fd; if (strcmp(direntp->d_name, ".") == 0) continue; if (strcmp(direntp->d_name, "..") == 0) continue; fd = atoi(direntp->d_name); if (fd == dir_fd || fd == 0 || fd == 1 || fd == 2) continue; close(fd); } closedir(dir); return 0; } to close_range() yields: 1. closing 4 open files: - close_all_fds(): ~280 us - close_range(): ~24 us 2. closing 1000 open files: - close_all_fds(): ~5000 us - close_range(): ~800 us close_range() is designed to allow for some flexibility. Specifically, it does not simply always close all open file descriptors of a task. Instead, callers can specify an upper bound. This is e.g. useful for scenarios where specific file descriptors are created with well-known numbers that are supposed to be excluded from getting closed. For extra paranoia close_range() comes with a flags argument. This can e.g. be used to implement extension. Once can imagine userspace wanting to stop at the first error instead of ignoring errors under certain circumstances. There might be other valid ideas in the future. In any case, a flag argument doesn't hurt and keeps us on the safe side. From an implementation side this is kept rather dumb. It saw some input from David and Jann but all nonsense is obviously my own! - Errors to close file descriptors are currently ignored. (Could be changed by setting a flag in the future if needed.) - __close_range() is a rather simplistic wrapper around __close_fd(). My reasoning behind this is based on the nature of how __close_fd() needs to release an fd. But maybe I misunderstood specifics: We take the files_lock and rcu-dereference the fdtable of the calling task, we find the entry in the fdtable, get the file and need to release files_lock before calling filp_close(). In the meantime the fdtable might have been altered so we can't just retake the spinlock and keep the old rcu-reference of the fdtable around. Instead we need to grab a fresh reference to the fdtable. If my reasoning is correct then there's really no point in fancyfying __close_range(): We just need to rcu-dereference the fdtable of the calling task once to cap the max_fd value correctly and then go on calling __close_fd() in a loop. /* References */ [1]: https://lore.kernel.org/lkml/20190516165021.GD17978@ZenIV.linux.org.uk/ [2]: |
||
|
Linus Torvalds
|
94709049fb |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: "A few little subsystems and a start of a lot of MM patches. Subsystems affected by this patch series: squashfs, ocfs2, parisc, vfs. With mm subsystems: slab-generic, slub, debug, pagecache, gup, swap, memcg, pagemap, memory-failure, vmalloc, kasan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits) kasan: move kasan_report() into report.c mm/mm_init.c: report kasan-tag information stored in page->flags ubsan: entirely disable alignment checks under UBSAN_TRAP kasan: fix clang compilation warning due to stack protector x86/mm: remove vmalloc faulting mm: remove vmalloc_sync_(un)mappings() x86/mm/32: implement arch_sync_kernel_mappings() x86/mm/64: implement arch_sync_kernel_mappings() mm/ioremap: track which page-table levels were modified mm/vmalloc: track which page-table levels were modified mm: add functions to track page directory modifications s390: use __vmalloc_node in stack_alloc powerpc: use __vmalloc_node in alloc_vm_stack arm64: use __vmalloc_node in arch_alloc_vmap_stack mm: remove vmalloc_user_node_flags mm: switch the test_vmalloc module to use __vmalloc_node mm: remove __vmalloc_node_flags_caller mm: remove both instances of __vmalloc_node_flags mm: remove the prot argument to __vmalloc_node mm: remove the pgprot argument to __vmalloc ... |
||
Jeff Layton
|
735e4ae5ba |
vfs: track per-sb writeback errors and report them to syncfs
Patch series "vfs: have syncfs() return error when there are writeback errors", v6. Currently, syncfs does not return errors when one of the inodes fails to be written back. It will return errors based on the legacy AS_EIO and AS_ENOSPC flags when syncing out the block device fails, but that's not particularly helpful for filesystems that aren't backed by a blockdev. It's also possible for a stray sync to lose those errors. The basic idea in this set is to track writeback errors at the superblock level, so that we can quickly and easily check whether something bad happened without having to fsync each file individually. syncfs is then changed to reliably report writeback errors after they occur, much in the same fashion as fsync does now. This patch (of 2): Usually we suggest that applications call fsync when they want to ensure that all data written to the file has made it to the backing store, but that can be inefficient when there are a lot of open files. Calling syncfs on the filesystem can be more efficient in some situations, but the error reporting doesn't currently work the way most people expect. If a single inode on a filesystem reports a writeback error, syncfs won't necessarily return an error. syncfs only returns an error if __sync_blockdev fails, and on some filesystems that's a no-op. It would be better if syncfs reported an error if there were any writeback failures. Then applications could call syncfs to see if there are any errors on any open files, and could then call fsync on all of the other descriptors to figure out which one failed. This patch adds a new errseq_t to struct super_block, and has mapping_set_error also record writeback errors there. To report those errors, we also need to keep an errseq_t in struct file to act as a cursor. This patch adds a dedicated field for that purpose, which slots nicely into 4 bytes of padding at the end of struct file on x86_64. An earlier version of this patch used an O_PATH file descriptor to cue the kernel that the open file should track the superblock error and not the inode's writeback error. I think that API is just too weird though. This is simpler and should make syncfs error reporting "just work" even if someone is multiplexing fsync and syncfs on the same fds. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Andres Freund <andres@anarazel.de> Cc: Matthew Wilcox <willy@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: David Howells <dhowells@redhat.com> Link: http://lkml.kernel.org/r/20200428135155.19223-1-jlayton@kernel.org Link: http://lkml.kernel.org/r/20200428135155.19223-2-jlayton@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Miklos Szeredi
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c8ffd8bcdd |
vfs: add faccessat2 syscall
POSIX defines faccessat() as having a fourth "flags" argument, while the linux syscall doesn't have it. Glibc tries to emulate AT_EACCESS and AT_SYMLINK_NOFOLLOW, but AT_EACCESS emulation is broken. Add a new faccessat(2) syscall with the added flags argument and implement both flags. The value of AT_EACCESS is defined in glibc headers to be the same as AT_REMOVEDIR. Use this value for the kernel interface as well, together with the explanatory comment. Also add AT_EMPTY_PATH support, which is not documented by POSIX, but can be useful and is trivial to implement. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
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Miklos Szeredi
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9470451505 |
vfs: split out access_override_creds()
Split out a helper that overrides the credentials in preparation for actually doing the access check. This prepares for the next patch that optionally disables the creds override. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
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Linus Torvalds
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9c577491b9 |
Merge branch 'work.dotdot1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pathwalk sanitizing from Al Viro:
"Massive pathwalk rewrite and cleanups.
Several iterations have been posted; hopefully this thing is getting
readable and understandable now. Pretty much all parts of pathname
resolutions are affected...
The branch is identical to what has sat in -next, except for commit
message in "lift all calls of step_into() out of follow_dotdot/
follow_dotdot_rcu", crediting Qian Cai for reporting the bug; only
commit message changed there."
* 'work.dotdot1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (69 commits)
lookup_open(): don't bother with fallbacks to lookup+create
atomic_open(): no need to pass struct open_flags anymore
open_last_lookups(): move complete_walk() into do_open()
open_last_lookups(): lift O_EXCL|O_CREAT handling into do_open()
open_last_lookups(): don't abuse complete_walk() when all we want is unlazy
open_last_lookups(): consolidate fsnotify_create() calls
take post-lookup part of do_last() out of loop
link_path_walk(): sample parent's i_uid and i_mode for the last component
__nd_alloc_stack(): make it return bool
reserve_stack(): switch to __nd_alloc_stack()
pick_link(): take reserving space on stack into a new helper
pick_link(): more straightforward handling of allocation failures
fold path_to_nameidata() into its only remaining caller
pick_link(): pass it struct path already with normal refcounting rules
fs/namei.c: kill follow_mount()
non-RCU analogue of the previous commit
helper for mount rootwards traversal
follow_dotdot(): be lazy about changing nd->path
follow_dotdot_rcu(): be lazy about changing nd->path
follow_dotdot{,_rcu}(): massage loops
...
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Al Viro
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d9a9f4849f |
cifs_atomic_open(): fix double-put on late allocation failure
several iterations of ->atomic_open() calling conventions ago, we
used to need fput() if ->atomic_open() failed at some point after
successful finish_open(). Now (since 2016) it's not needed -
struct file carries enough state to make fput() work regardless
of the point in struct file lifecycle and discarding it on
failure exits in open() got unified. Unfortunately, I'd missed
the fact that we had an instance of ->atomic_open() (cifs one)
that used to need that fput(), as well as the stale comment in
finish_open() demanding such late failure handling. Trivially
fixed...
Fixes:
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Al Viro
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31d1726d72 |
make build_open_flags() treat O_CREAT | O_EXCL as implying O_NOFOLLOW
O_CREAT | O_EXCL means "-EEXIST if we run into a trailing symlink". As it is, we might or might not have LOOKUP_FOLLOW in op->intent in that case - that depends upon having O_NOFOLLOW in open flags. It doesn't matter, since we won't be checking it in that case - do_last() bails out earlier. However, making sure it's not set (i.e. acting as if we had an explicit O_NOFOLLOW) makes the behaviour more explicit and allows to reorder the check for O_CREAT | O_EXCL in do_last() with the call of step_into() immediately following it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Jens Axboe
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35cb6d54c1 |
fs: make build_open_flags() available internally
This is a prep patch for supporting non-blocking open from io_uring. Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Aleksa Sarai
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fddb5d430a |
open: introduce openat2(2) syscall
/* Background. */
For a very long time, extending openat(2) with new features has been
incredibly frustrating. This stems from the fact that openat(2) is
possibly the most famous counter-example to the mantra "don't silently
accept garbage from userspace" -- it doesn't check whether unknown flags
are present[1].
This means that (generally) the addition of new flags to openat(2) has
been fraught with backwards-compatibility issues (O_TMPFILE has to be
defined as __O_TMPFILE|O_DIRECTORY|[O_RDWR or O_WRONLY] to ensure old
kernels gave errors, since it's insecure to silently ignore the
flag[2]). All new security-related flags therefore have a tough road to
being added to openat(2).
Userspace also has a hard time figuring out whether a particular flag is
supported on a particular kernel. While it is now possible with
contemporary kernels (thanks to [3]), older kernels will expose unknown
flag bits through fcntl(F_GETFL). Giving a clear -EINVAL during
openat(2) time matches modern syscall designs and is far more
fool-proof.
In addition, the newly-added path resolution restriction LOOKUP flags
(which we would like to expose to user-space) don't feel related to the
pre-existing O_* flag set -- they affect all components of path lookup.
We'd therefore like to add a new flag argument.
Adding a new syscall allows us to finally fix the flag-ignoring problem,
and we can make it extensible enough so that we will hopefully never
need an openat3(2).
/* Syscall Prototype. */
/*
* open_how is an extensible structure (similar in interface to
* clone3(2) or sched_setattr(2)). The size parameter must be set to
* sizeof(struct open_how), to allow for future extensions. All future
* extensions will be appended to open_how, with their zero value
* acting as a no-op default.
*/
struct open_how { /* ... */ };
int openat2(int dfd, const char *pathname,
struct open_how *how, size_t size);
/* Description. */
The initial version of 'struct open_how' contains the following fields:
flags
Used to specify openat(2)-style flags. However, any unknown flag
bits or otherwise incorrect flag combinations (like O_PATH|O_RDWR)
will result in -EINVAL. In addition, this field is 64-bits wide to
allow for more O_ flags than currently permitted with openat(2).
mode
The file mode for O_CREAT or O_TMPFILE.
Must be set to zero if flags does not contain O_CREAT or O_TMPFILE.
resolve
Restrict path resolution (in contrast to O_* flags they affect all
path components). The current set of flags are as follows (at the
moment, all of the RESOLVE_ flags are implemented as just passing
the corresponding LOOKUP_ flag).
RESOLVE_NO_XDEV => LOOKUP_NO_XDEV
RESOLVE_NO_SYMLINKS => LOOKUP_NO_SYMLINKS
RESOLVE_NO_MAGICLINKS => LOOKUP_NO_MAGICLINKS
RESOLVE_BENEATH => LOOKUP_BENEATH
RESOLVE_IN_ROOT => LOOKUP_IN_ROOT
open_how does not contain an embedded size field, because it is of
little benefit (userspace can figure out the kernel open_how size at
runtime fairly easily without it). It also only contains u64s (even
though ->mode arguably should be a u16) to avoid having padding fields
which are never used in the future.
Note that as a result of the new how->flags handling, O_PATH|O_TMPFILE
is no longer permitted for openat(2). As far as I can tell, this has
always been a bug and appears to not be used by userspace (and I've not
seen any problems on my machines by disallowing it). If it turns out
this breaks something, we can special-case it and only permit it for
openat(2) but not openat2(2).
After input from Florian Weimer, the new open_how and flag definitions
are inside a separate header from uapi/linux/fcntl.h, to avoid problems
that glibc has with importing that header.
/* Testing. */
In a follow-up patch there are over 200 selftests which ensure that this
syscall has the correct semantics and will correctly handle several
attack scenarios.
In addition, I've written a userspace library[4] which provides
convenient wrappers around openat2(RESOLVE_IN_ROOT) (this is necessary
because no other syscalls support RESOLVE_IN_ROOT, and thus lots of care
must be taken when using RESOLVE_IN_ROOT'd file descriptors with other
syscalls). During the development of this patch, I've run numerous
verification tests using libpathrs (showing that the API is reasonably
usable by userspace).
/* Future Work. */
Additional RESOLVE_ flags have been suggested during the review period.
These can be easily implemented separately (such as blocking auto-mount
during resolution).
Furthermore, there are some other proposed changes to the openat(2)
interface (the most obvious example is magic-link hardening[5]) which
would be a good opportunity to add a way for userspace to restrict how
O_PATH file descriptors can be re-opened.
Another possible avenue of future work would be some kind of
CHECK_FIELDS[6] flag which causes the kernel to indicate to userspace
which openat2(2) flags and fields are supported by the current kernel
(to avoid userspace having to go through several guesses to figure it
out).
[1]: https://lwn.net/Articles/588444/
[2]: https://lore.kernel.org/lkml/CA+55aFyyxJL1LyXZeBsf2ypriraj5ut1XkNDsunRBqgVjZU_6Q@mail.gmail.com
[3]: commit
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Linus Torvalds
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2be7d348fe |
Revert "vfs: properly and reliably lock f_pos in fdget_pos()"
This reverts commit
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Linus Torvalds
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0be0ee7181 |
vfs: properly and reliably lock f_pos in fdget_pos()
fdget_pos() is used by file operations that will read and update f_pos:
things like "read()", "write()" and "lseek()" (but not, for example,
"pread()/pwrite" that get their file positions elsewhere).
However, it had two separate escape clauses for this, because not
everybody wants or needs serialization of the file position.
The first and most obvious case is the "file descriptor doesn't have a
position at all", ie a stream-like file. Except we didn't actually use
FMODE_STREAM, but instead used FMODE_ATOMIC_POS. The reason for that
was that FMODE_STREAM didn't exist back in the days, but also that we
didn't want to mark all the special cases, so we only marked the ones
that _required_ position atomicity according to POSIX - regular files
and directories.
The case one was intentionally lazy, but now that we _do_ have
FMODE_STREAM we could and should just use it. With the change to use
FMODE_STREAM, there are no remaining uses for FMODE_ATOMIC_POS, and all
the code to set it is deleted.
Any cases where we don't want the serialization because the driver (or
subsystem) doesn't use the file position should just be updated to do
"stream_open()". We've done that for all the obvious and common
situations, we may need a few more. Quoting Kirill Smelkov in the
original FMODE_STREAM thread (see link below for full email):
"And I appreciate if people could help at least somehow with "getting
rid of mixed case entirely" (i.e. always lock f_pos_lock on
!FMODE_STREAM), because this transition starts to diverge from my
particular use-case too far. To me it makes sense to do that
transition as follows:
- convert nonseekable_open -> stream_open via stream_open.cocci;
- audit other nonseekable_open calls and convert left users that
truly don't depend on position to stream_open;
- extend stream_open.cocci to analyze alloc_file_pseudo as well (this
will cover pipes and sockets), or maybe convert pipes and sockets
to FMODE_STREAM manually;
- extend stream_open.cocci to analyze file_operations that use
no_llseek or noop_llseek, but do not use nonseekable_open or
alloc_file_pseudo. This might find files that have stream semantic
but are opened differently;
- extend stream_open.cocci to analyze file_operations whose
.read/.write do not use ppos at all (independently of how file was
opened);
- ...
- after that remove FMODE_ATOMIC_POS and always take f_pos_lock if
!FMODE_STREAM;
- gather bug reports for deadlocked read/write and convert missed
cases to FMODE_STREAM, probably extending stream_open.cocci along
the road to catch similar cases
i.e. always take f_pos_lock unless a file is explicitly marked as
being stream, and try to find and cover all files that are streams"
We have not done the "extend stream_open.cocci to analyze
alloc_file_pseudo" as well, but the previous commit did manually handle
the case of pipes and sockets.
The other case where we can avoid locking f_pos is the "this file
descriptor only has a single user and it is us, and thus there is no
need to lock it".
The second test was correct, although a bit subtle and worth just
re-iterating here. There are two kinds of other sources of references
to the same file descriptor: file descriptors that have been explicitly
shared across fork() or with dup(), and file tables having elevated
reference counts due to threading (or explicit file sharing with
clone()).
The first case would have incremented the file count explicitly, and in
the second case the previous __fdget() would have incremented it for us
and set the FDPUT_FPUT flag.
But in both cases the file count would be greater than one, so the
"file_count(file) > 1" test catches both situations. Also note that if
file_count is 1, that also means that no other thread can have access to
the file table, so there also cannot be races with concurrent calls to
dup()/fork()/clone() that would increment the file count any other way.
Link: https://lore.kernel.org/linux-fsdevel/20190413184404.GA13490@deco.navytux.spb.ru
Cc: Kirill Smelkov <kirr@nexedi.com>
Cc: Eic Dumazet <edumazet@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Marco Elver <elver@google.com>
Cc: Andrea Parri <parri.andrea@gmail.com>
Cc: Paul McKenney <paulmck@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Denis Efremov
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7159d54418 |
fs: remove unlikely() from WARN_ON() condition
"unlikely(WARN_ON(x))" is excessive. WARN_ON() already uses unlikely() internally. Link: http://lkml.kernel.org/r/20190829165025.15750-5-efremov@linux.com Signed-off-by: Denis Efremov <efremov@linux.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Song Liu
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09d91cda0e |
mm,thp: avoid writes to file with THP in pagecache
In previous patch, an application could put part of its text section in THP via madvise(). These THPs will be protected from writes when the application is still running (TXTBSY). However, after the application exits, the file is available for writes. This patch avoids writes to file THP by dropping page cache for the file when the file is open for write. A new counter nr_thps is added to struct address_space. In do_dentry_open(), if the file is open for write and nr_thps is non-zero, we drop page cache for the whole file. Link: http://lkml.kernel.org/r/20190801184244.3169074-8-songliubraving@fb.com Signed-off-by: Song Liu <songliubraving@fb.com> Reported-by: kbuild test robot <lkp@intel.com> Acked-by: Rik van Riel <riel@surriel.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Hillf Danton <hdanton@sina.com> Cc: Hugh Dickins <hughd@google.com> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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d7852fbd0f |
access: avoid the RCU grace period for the temporary subjective credentials
It turns out that 'access()' (and 'faccessat()') can cause a lot of RCU work because it installs a temporary credential that gets allocated and freed for each system call. The allocation and freeing overhead is mostly benign, but because credentials can be accessed under the RCU read lock, the freeing involves a RCU grace period. Which is not a huge deal normally, but if you have a lot of access() calls, this causes a fair amount of seconday damage: instead of having a nice alloc/free patterns that hits in hot per-CPU slab caches, you have all those delayed free's, and on big machines with hundreds of cores, the RCU overhead can end up being enormous. But it turns out that all of this is entirely unnecessary. Exactly because access() only installs the credential as the thread-local subjective credential, the temporary cred pointer doesn't actually need to be RCU free'd at all. Once we're done using it, we can just free it synchronously and avoid all the RCU overhead. So add a 'non_rcu' flag to 'struct cred', which can be set by users that know they only use it in non-RCU context (there are other potential users for this). We can make it a union with the rcu freeing list head that we need for the RCU case, so this doesn't need any extra storage. Note that this also makes 'get_current_cred()' clear the new non_rcu flag, in case we have filesystems that take a long-term reference to the cred and then expect the RCU delayed freeing afterwards. It's not entirely clear that this is required, but it makes for clear semantics: the subjective cred remains non-RCU as long as you only access it synchronously using the thread-local accessors, but you _can_ use it as a generic cred if you want to. It is possible that we should just remove the whole RCU markings for ->cred entirely. Only ->real_cred is really supposed to be accessed through RCU, and the long-term cred copies that nfs uses might want to explicitly re-enable RCU freeing if required, rather than have get_current_cred() do it implicitly. But this is a "minimal semantic changes" change for the immediate problem. Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Paul E. McKenney <paulmck@linux.ibm.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Jan Glauber <jglauber@marvell.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: Jayachandran Chandrasekharan Nair <jnair@marvell.com> Cc: Greg KH <greg@kroah.com> Cc: Kees Cook <keescook@chromium.org> Cc: David Howells <dhowells@redhat.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Thomas Gleixner
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457c899653 |
treewide: Add SPDX license identifier for missed files
Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kirill Smelkov
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438ab720c6 |
vfs: pass ppos=NULL to .read()/.write() of FMODE_STREAM files
This amends commit |
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Kirill Smelkov
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10dce8af34 |
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
Commit |