lineage-22.0
304 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
e5d2cd6ad8 |
ANDROID: abi preservation for fscrypt change in 5.10.154
commit |
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Eric Biggers
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f466ca1247 |
This is the 5.10.154 stable release
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Merge 5.10.154 into android12-5.10-lts
Changes in 5.10.154
serial: 8250: Let drivers request full 16550A feature probing
serial: ar933x: Deassert Transmit Enable on ->rs485_config()
KVM: nVMX: Pull KVM L0's desired controls directly from vmcs01
KVM: nVMX: Don't propagate vmcs12's PERF_GLOBAL_CTRL settings to vmcs02
KVM: x86: Trace re-injected exceptions
KVM: x86: Treat #DBs from the emulator as fault-like (code and DR7.GD=1)
x86/topology: Set cpu_die_id only if DIE_TYPE found
x86/topology: Fix multiple packages shown on a single-package system
x86/topology: Fix duplicated core ID within a package
KVM: x86: Protect the unused bits in MSR exiting flags
KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()
KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER
RDMA/cma: Use output interface for net_dev check
IB/hfi1: Correctly move list in sc_disable()
NFSv4: Fix a potential state reclaim deadlock
NFSv4.1: Handle RECLAIM_COMPLETE trunking errors
NFSv4.1: We must always send RECLAIM_COMPLETE after a reboot
nfs4: Fix kmemleak when allocate slot failed
net: dsa: Fix possible memory leaks in dsa_loop_init()
RDMA/core: Fix null-ptr-deref in ib_core_cleanup()
RDMA/qedr: clean up work queue on failure in qedr_alloc_resources()
nfc: fdp: drop ftrace-like debugging messages
nfc: fdp: Fix potential memory leak in fdp_nci_send()
NFC: nxp-nci: remove unnecessary labels
nfc: nxp-nci: Fix potential memory leak in nxp_nci_send()
nfc: s3fwrn5: Fix potential memory leak in s3fwrn5_nci_send()
nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send()
net: fec: fix improper use of NETDEV_TX_BUSY
ata: pata_legacy: fix pdc20230_set_piomode()
net: sched: Fix use after free in red_enqueue()
net: tun: fix bugs for oversize packet when napi frags enabled
netfilter: nf_tables: release flow rule object from commit path
ipvs: use explicitly signed chars
ipvs: fix WARNING in __ip_vs_cleanup_batch()
ipvs: fix WARNING in ip_vs_app_net_cleanup()
rose: Fix NULL pointer dereference in rose_send_frame()
mISDN: fix possible memory leak in mISDN_register_device()
isdn: mISDN: netjet: fix wrong check of device registration
btrfs: fix inode list leak during backref walking at resolve_indirect_refs()
btrfs: fix inode list leak during backref walking at find_parent_nodes()
btrfs: fix ulist leaks in error paths of qgroup self tests
Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del()
net: mdio: fix undefined behavior in bit shift for __mdiobus_register
net, neigh: Fix null-ptr-deref in neigh_table_clear()
ipv6: fix WARNING in ip6_route_net_exit_late()
drm/msm/hdmi: Remove spurious IRQF_ONESHOT flag
drm/msm/hdmi: fix IRQ lifetime
mmc: sdhci-esdhc-imx: Propagate ESDHC_FLAG_HS400* only on 8bit bus
mmc: sdhci-pci: Avoid comma separated statements
mmc: sdhci-pci-core: Disable ES for ASUS BIOS on Jasper Lake
video/fbdev/stifb: Implement the stifb_fillrect() function
fbdev: stifb: Fall back to cfb_fillrect() on 32-bit HCRX cards
mtd: parsers: bcm47xxpart: print correct offset on read error
mtd: parsers: bcm47xxpart: Fix halfblock reads
xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices
s390/boot: add secure boot trailer
media: rkisp1: Initialize color space on resizer sink and source pads
media: rkisp1: Zero v4l2_subdev_format fields in when validating links
media: s5p_cec: limit msg.len to CEC_MAX_MSG_SIZE
media: cros-ec-cec: limit msg.len to CEC_MAX_MSG_SIZE
media: dvb-frontends/drxk: initialize err to 0
media: meson: vdec: fix possible refcount leak in vdec_probe()
ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()
scsi: core: Restrict legal sdev_state transitions via sysfs
HID: saitek: add madcatz variant of MMO7 mouse device ID
drm/amdgpu: set vm_update_mode=0 as default for Sienna Cichlid in SRIOV case
i2c: xiic: Add platform module alias
efi/tpm: Pass correct address to memblock_reserve
ARM: dts: imx6qdl-gw59{10,13}: fix user pushbutton GPIO offset
firmware: arm_scmi: Suppress the driver's bind attributes
firmware: arm_scmi: Make Rx chan_setup fail on memory errors
arm64: dts: juno: Add thermal critical trip points
i2c: piix4: Fix adapter not be removed in piix4_remove()
Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM
Bluetooth: L2CAP: Fix attempting to access uninitialized memory
block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
ALSA: usb-audio: Add quirks for MacroSilicon MS2100/MS2106 devices
fscrypt: simplify master key locking
fscrypt: stop using keyrings subsystem for fscrypt_master_key
fscrypt: fix keyring memory leak on mount failure
tcp/udp: Fix memory leak in ipv6_renew_options().
mtd: rawnand: gpmi: Set WAIT_FOR_READY timeout based on program/erase times
memcg: enable accounting of ipc resources
binder: fix UAF of alloc->vma in race with munmap()
coresight: cti: Fix hang in cti_disable_hw()
btrfs: fix type of parameter generation in btrfs_get_dentry
ftrace: Fix use-after-free for dynamic ftrace_ops
tcp/udp: Make early_demux back namespacified.
tracing: kprobe: Fix memory leak in test_gen_kprobe/kretprobe_cmd()
kprobe: reverse kp->flags when arm_kprobe failed
tools/nolibc/string: Fix memcmp() implementation
tracing/histogram: Update document for KEYS_MAX size
capabilities: fix potential memleak on error path from vfs_getxattr_alloc()
fuse: add file_modified() to fallocate
efi: random: reduce seed size to 32 bytes
efi: random: Use 'ACPI reclaim' memory for random seed
perf/x86/intel: Fix pebs event constraints for ICL
perf/x86/intel: Add Cooper Lake stepping to isolation_ucodes[]
parisc: Make 8250_gsc driver dependend on CONFIG_PARISC
parisc: Export iosapic_serial_irq() symbol for serial port driver
parisc: Avoid printing the hardware path twice
ext4: fix warning in 'ext4_da_release_space'
ext4: fix BUG_ON() when directory entry has invalid rec_len
KVM: x86: Mask off reserved bits in CPUID.80000006H
KVM: x86: Mask off reserved bits in CPUID.8000001AH
KVM: x86: Mask off reserved bits in CPUID.80000008H
KVM: x86: Mask off reserved bits in CPUID.80000001H
KVM: x86: emulator: em_sysexit should update ctxt->mode
KVM: x86: emulator: introduce emulator_recalc_and_set_mode
KVM: x86: emulator: update the emulation mode after CR0 write
ext4,f2fs: fix readahead of verity data
drm/rockchip: dsi: Force synchronous probe
drm/i915/sdvo: Filter out invalid outputs more sensibly
drm/i915/sdvo: Setup DDC fully before output init
wifi: brcmfmac: Fix potential buffer overflow in brcmf_fweh_event_worker()
ipc: remove memcg accounting for sops objects in do_semtimedop()
Linux 5.10.154
Change-Id: I6965878bf3bad857fbdbcdeb7dd066cc280aa026
Signed-off-by: Eric Biggers <ebiggers@google.com>
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Eric Biggers
|
29997a6fa6 |
fscrypt: fix keyring memory leak on mount failure
commit ccd30a476f8e864732de220bd50e6f372f5ebcab upstream.
Commit d7e7b9af104c ("fscrypt: stop using keyrings subsystem for
fscrypt_master_key") moved the keyring destruction from __put_super() to
generic_shutdown_super() so that the filesystem's block device(s) are
still available. Unfortunately, this causes a memory leak in the case
where a mount is attempted with the test_dummy_encryption mount option,
but the mount fails after the option has already been processed.
To fix this, attempt the keyring destruction in both places.
Reported-by: syzbot+104c2a89561289cec13e@syzkaller.appspotmail.com
Fixes: d7e7b9af104c ("fscrypt: stop using keyrings subsystem for fscrypt_master_key")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Link: https://lore.kernel.org/r/20221011213838.209879-1-ebiggers@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Eric Biggers
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391cceee6d |
fscrypt: stop using keyrings subsystem for fscrypt_master_key
commit d7e7b9af104c7b389a0c21eb26532511bce4b510 upstream.
The approach of fs/crypto/ internally managing the fscrypt_master_key
structs as the payloads of "struct key" objects contained in a
"struct key" keyring has outlived its usefulness. The original idea was
to simplify the code by reusing code from the keyrings subsystem.
However, several issues have arisen that can't easily be resolved:
- When a master key struct is destroyed, blk_crypto_evict_key() must be
called on any per-mode keys embedded in it. (This started being the
case when inline encryption support was added.) Yet, the keyrings
subsystem can arbitrarily delay the destruction of keys, even past the
time the filesystem was unmounted. Therefore, currently there is no
easy way to call blk_crypto_evict_key() when a master key is
destroyed. Currently, this is worked around by holding an extra
reference to the filesystem's request_queue(s). But it was overlooked
that the request_queue reference is *not* guaranteed to pin the
corresponding blk_crypto_profile too; for device-mapper devices that
support inline crypto, it doesn't. This can cause a use-after-free.
- When the last inode that was using an incompletely-removed master key
is evicted, the master key removal is completed by removing the key
struct from the keyring. Currently this is done via key_invalidate().
Yet, key_invalidate() takes the key semaphore. This can deadlock when
called from the shrinker, since in fscrypt_ioctl_add_key(), memory is
allocated with GFP_KERNEL under the same semaphore.
- More generally, the fact that the keyrings subsystem can arbitrarily
delay the destruction of keys (via garbage collection delay, or via
random processes getting temporary key references) is undesirable, as
it means we can't strictly guarantee that all secrets are ever wiped.
- Doing the master key lookups via the keyrings subsystem results in the
key_permission LSM hook being called. fscrypt doesn't want this, as
all access control for encrypted files is designed to happen via the
files themselves, like any other files. The workaround which SELinux
users are using is to change their SELinux policy to grant key search
access to all domains. This works, but it is an odd extra step that
shouldn't really have to be done.
The fix for all these issues is to change the implementation to what I
should have done originally: don't use the keyrings subsystem to keep
track of the filesystem's fscrypt_master_key structs. Instead, just
store them in a regular kernel data structure, and rework the reference
counting, locking, and lifetime accordingly. Retain support for
RCU-mode key lookups by using a hash table. Replace fscrypt_sb_free()
with fscrypt_sb_delete(), which releases the keys synchronously and runs
a bit earlier during unmount, so that block devices are still available.
A side effect of this patch is that neither the master keys themselves
nor the filesystem keyrings will be listed in /proc/keys anymore.
("Master key users" and the master key users keyrings will still be
listed.) However, this was mostly an implementation detail, and it was
intended just for debugging purposes. I don't know of anyone using it.
This patch does *not* change how "master key users" (->mk_users) works;
that still uses the keyrings subsystem. That is still needed for key
quotas, and changing that isn't necessary to solve the issues listed
above. If we decide to change that too, it would be a separate patch.
I've marked this as fixing the original commit that added the fscrypt
keyring, but as noted above the most important issue that this patch
fixes wasn't introduced until the addition of inline encryption support.
Fixes:
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Eric Biggers
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092401142b |
fscrypt: simplify master key locking
commit 4a4b8721f1a5e4b01e45b3153c68d5a1014b25de upstream. The stated reasons for separating fscrypt_master_key::mk_secret_sem from the standard semaphore contained in every 'struct key' no longer apply. First, due to commit |
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Greg Kroah-Hartman
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eff1ffbf0c |
ANDROID: GKI: set more vfs-only exports into their own namespace
There are more vfs-only symbols that OEMs want to use, so place them in the proper vfs-only namespace. Bug: 157965270 Bug: 210074446 Bug: 227656251 Cc: Matthias Maennich <maennich@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I99b9facc8da45fb329f6627d204180d1f89bcf97 |
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Greg Kroah-Hartman
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c553d9a246 |
This is the 5.10.80 stable release
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Merge 5.10.80 into android12-5.10-lts
Changes in 5.10.80
xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform
binder: use euid from cred instead of using task
binder: use cred instead of task for selinux checks
binder: use cred instead of task for getsecid
Input: iforce - fix control-message timeout
Input: elantench - fix misreporting trackpoint coordinates
Input: i8042 - Add quirk for Fujitsu Lifebook T725
libata: fix read log timeout value
ocfs2: fix data corruption on truncate
scsi: core: Remove command size deduction from scsi_setup_scsi_cmnd()
scsi: qla2xxx: Fix kernel crash when accessing port_speed sysfs file
scsi: qla2xxx: Fix use after free in eh_abort path
mmc: mtk-sd: Add wait dma stop done flow
mmc: dw_mmc: Dont wait for DRTO on Write RSP error
exfat: fix incorrect loading of i_blocks for large files
parisc: Fix set_fixmap() on PA1.x CPUs
parisc: Fix ptrace check on syscall return
tpm: Check for integer overflow in tpm2_map_response_body()
firmware/psci: fix application of sizeof to pointer
crypto: s5p-sss - Add error handling in s5p_aes_probe()
media: rkvdec: Do not override sizeimage for output format
media: ite-cir: IR receiver stop working after receive overflow
media: rkvdec: Support dynamic resolution changes
media: ir-kbd-i2c: improve responsiveness of hauppauge zilog receivers
media: v4l2-ioctl: Fix check_ext_ctrls
ALSA: hda/realtek: Fix mic mute LED for the HP Spectre x360 14
ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute LED
ALSA: hda/realtek: Add quirk for Clevo PC70HS
ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ
ALSA: hda/realtek: Add a quirk for Acer Spin SP513-54N
ALSA: hda/realtek: Add quirk for ASUS UX550VE
ALSA: hda/realtek: Add quirk for HP EliteBook 840 G7 mute LED
ALSA: ua101: fix division by zero at probe
ALSA: 6fire: fix control and bulk message timeouts
ALSA: line6: fix control and interrupt message timeouts
ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk
ALSA: usb-audio: Add registration quirk for JBL Quantum 400
ALSA: hda: Free card instance properly at probe errors
ALSA: synth: missing check for possible NULL after the call to kstrdup
ALSA: timer: Fix use-after-free problem
ALSA: timer: Unconditionally unlink slave instances, too
ext4: fix lazy initialization next schedule time computation in more granular unit
ext4: ensure enough credits in ext4_ext_shift_path_extents
ext4: refresh the ext4_ext_path struct after dropping i_data_sem.
fuse: fix page stealing
x86/sme: Use #define USE_EARLY_PGTABLE_L5 in mem_encrypt_identity.c
x86/cpu: Fix migration safety with X86_BUG_NULL_SEL
x86/irq: Ensure PI wakeup handler is unregistered before module unload
ASoC: soc-core: fix null-ptr-deref in snd_soc_del_component_unlocked()
ALSA: hda/realtek: Fixes HP Spectre x360 15-eb1xxx speakers
cavium: Return negative value when pci_alloc_irq_vectors() fails
scsi: qla2xxx: Return -ENOMEM if kzalloc() fails
scsi: qla2xxx: Fix unmap of already freed sgl
mISDN: Fix return values of the probe function
cavium: Fix return values of the probe function
sfc: Export fibre-specific supported link modes
sfc: Don't use netif_info before net_device setup
hyperv/vmbus: include linux/bitops.h
ARM: dts: sun7i: A20-olinuxino-lime2: Fix ethernet phy-mode
reset: socfpga: add empty driver allowing consumers to probe
mmc: winbond: don't build on M68K
drm: panel-orientation-quirks: Add quirk for Aya Neo 2021
fcnal-test: kill hanging ping/nettest binaries on cleanup
bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT
bpf: Prevent increasing bpf_jit_limit above max
gpio: mlxbf2.c: Add check for bgpio_init failure
xen/netfront: stop tx queues during live migration
nvmet-tcp: fix a memory leak when releasing a queue
spi: spl022: fix Microwire full duplex mode
net: multicast: calculate csum of looped-back and forwarded packets
watchdog: Fix OMAP watchdog early handling
drm: panel-orientation-quirks: Add quirk for GPD Win3
block: schedule queue restart after BLK_STS_ZONE_RESOURCE
nvmet-tcp: fix header digest verification
r8169: Add device 10ec:8162 to driver r8169
vmxnet3: do not stop tx queues after netif_device_detach()
nfp: bpf: relax prog rejection for mtu check through max_pkt_offset
net/smc: Fix smc_link->llc_testlink_time overflow
net/smc: Correct spelling mistake to TCPF_SYN_RECV
rds: stop using dmapool
btrfs: clear MISSING device status bit in btrfs_close_one_device
btrfs: fix lost error handling when replaying directory deletes
btrfs: call btrfs_check_rw_degradable only if there is a missing device
KVM: VMX: Unregister posted interrupt wakeup handler on hardware unsetup
ia64: kprobes: Fix to pass correct trampoline address to the handler
selinux: fix race condition when computing ocontext SIDs
hwmon: (pmbus/lm25066) Add offset coefficients
regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
mwifiex: fix division by zero in fw download path
ath6kl: fix division by zero in send path
ath6kl: fix control-message timeout
ath10k: fix control-message timeout
ath10k: fix division by zero in send path
PCI: Mark Atheros QCA6174 to avoid bus reset
rtl8187: fix control-message timeouts
evm: mark evm_fixmode as __ro_after_init
ifb: Depend on netfilter alternatively to tc
wcn36xx: Fix HT40 capability for 2Ghz band
wcn36xx: Fix tx_status mechanism
wcn36xx: Fix (QoS) null data frame bitrate/modulation
PM: sleep: Do not let "syscore" devices runtime-suspend during system transitions
mwifiex: Read a PCI register after writing the TX ring write pointer
mwifiex: Try waking the firmware until we get an interrupt
libata: fix checking of DMA state
wcn36xx: handle connection loss indication
rsi: fix occasional initialisation failure with BT coex
rsi: fix key enabled check causing unwanted encryption for vap_id > 0
rsi: fix rate mask set leading to P2P failure
rsi: Fix module dev_oper_mode parameter description
perf/x86/intel/uncore: Support extra IMC channel on Ice Lake server
perf/x86/intel/uncore: Fix Intel ICX IIO event constraints
RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
signal: Remove the bogus sigkill_pending in ptrace_stop
memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode
signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
soc: fsl: dpio: replace smp_processor_id with raw_smp_processor_id
soc: fsl: dpio: use the combined functions to protect critical zone
mtd: rawnand: socrates: Keep the driver compatible with on-die ECC engines
power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
power: supply: max17042_battery: use VFSOC for capacity when no rsns
KVM: arm64: Extract ESR_ELx.EC only
KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
can: j1939: j1939_tp_cmd_recv(): ignore abort message in the BAM transport
can: j1939: j1939_can_recv(): ignore messages with invalid source address
powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found
ring-buffer: Protect ring_buffer_reset() from reentrancy
serial: core: Fix initializing and restoring termios speed
ifb: fix building without CONFIG_NET_CLS_ACT
ALSA: mixer: oss: Fix racy access to slots
ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
xen/balloon: add late_initcall_sync() for initial ballooning done
ovl: fix use after free in struct ovl_aio_req
PCI: pci-bridge-emul: Fix emulation of W1C bits
PCI: cadence: Add cdns_plat_pcie_probe() missing return
PCI: aardvark: Do not clear status bits of masked interrupts
PCI: aardvark: Fix checking for link up via LTSSM state
PCI: aardvark: Do not unmask unused interrupts
PCI: aardvark: Fix reporting Data Link Layer Link Active
PCI: aardvark: Fix configuring Reference clock
PCI: aardvark: Fix return value of MSI domain .alloc() method
PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG
PCI: aardvark: Fix support for bus mastering and PCI_COMMAND on emulated bridge
PCI: aardvark: Fix support for PCI_BRIDGE_CTL_BUS_RESET on emulated bridge
PCI: aardvark: Set PCI Bridge Class Code to PCI Bridge
PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge
quota: check block number when reading the block in quota file
quota: correct error number in free_dqentry()
pinctrl: core: fix possible memory leak in pinctrl_enable()
coresight: cti: Correct the parameter for pm_runtime_put
iio: dac: ad5446: Fix ad5622_write() return value
iio: ad5770r: make devicetree property reading consistent
USB: serial: keyspan: fix memleak on probe errors
serial: 8250: fix racy uartclk update
most: fix control-message timeouts
USB: iowarrior: fix control-message timeouts
USB: chipidea: fix interrupt deadlock
power: supply: max17042_battery: Clear status bits in interrupt handler
dma-buf: WARN on dmabuf release with pending attachments
drm: panel-orientation-quirks: Update the Lenovo Ideapad D330 quirk (v2)
drm: panel-orientation-quirks: Add quirk for KD Kurio Smart C15200 2-in-1
drm: panel-orientation-quirks: Add quirk for the Samsung Galaxy Book 10.6
Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
Bluetooth: fix use-after-free error in lock_sock_nested()
drm/panel-orientation-quirks: add Valve Steam Deck
rcutorture: Avoid problematic critical section nesting on PREEMPT_RT
platform/x86: wmi: do not fail if disabling fails
MIPS: lantiq: dma: add small delay after reset
MIPS: lantiq: dma: reset correct number of channel
locking/lockdep: Avoid RCU-induced noinstr fail
net: sched: update default qdisc visibility after Tx queue cnt changes
rcu-tasks: Move RTGS_WAIT_CBS to beginning of rcu_tasks_kthread() loop
smackfs: Fix use-after-free in netlbl_catmap_walk()
ath11k: Align bss_chan_info structure with firmware
x86: Increase exception stack sizes
mwifiex: Run SET_BSS_MODE when changing from P2P to STATION vif-type
mwifiex: Properly initialize private structure on interface type changes
fscrypt: allow 256-bit master keys with AES-256-XTS
drm/amdgpu: Fix MMIO access page fault
ath11k: Avoid reg rules update during firmware recovery
ath11k: add handler for scan event WMI_SCAN_EVENT_DEQUEUED
ath11k: Change DMA_FROM_DEVICE to DMA_TO_DEVICE when map reinjected packets
ath10k: high latency fixes for beacon buffer
media: mt9p031: Fix corrupted frame after restarting stream
media: netup_unidvb: handle interrupt properly according to the firmware
media: atomisp: Fix error handling in probe
media: stm32: Potential NULL pointer dereference in dcmi_irq_thread()
media: uvcvideo: Set capability in s_param
media: uvcvideo: Return -EIO for control errors
media: uvcvideo: Set unique vdev name based in type
media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
media: s5p-mfc: Add checking to s5p_mfc_probe().
media: imx: set a media_device bus_info string
media: mceusb: return without resubmitting URB in case of -EPROTO error.
ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
rtw88: fix RX clock gate setting while fifo dump
brcmfmac: Add DMI nvram filename quirk for Cyberbook T116 tablet
media: rcar-csi2: Add checking to rcsi2_start_receiver()
ipmi: Disable some operations during a panic
fs/proc/uptime.c: Fix idle time reporting in /proc/uptime
ACPICA: Avoid evaluating methods too early during system resume
media: ipu3-imgu: imgu_fmt: Handle properly try
media: ipu3-imgu: VIDIOC_QUERYCAP: Fix bus_info
media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
net-sysfs: try not to restart the syscall if it will fail eventually
tracefs: Have tracefs directories not set OTH permission bits by default
ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
mmc: moxart: Fix reference count leaks in moxart_probe
iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value
ACPI: battery: Accept charges over the design capacity as full
drm/amdkfd: fix resume error when iommu disabled in Picasso
net: phy: micrel: make *-skew-ps check more lenient
leaking_addresses: Always print a trailing newline
drm/msm: prevent NULL dereference in msm_gpu_crashstate_capture()
block: bump max plugged deferred size from 16 to 32
md: update superblock after changing rdev flags in state_store
memstick: r592: Fix a UAF bug when removing the driver
lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
lib/xz: Validate the value before assigning it to an enum variable
workqueue: make sysfs of unbound kworker cpumask more clever
tracing/cfi: Fix cmp_entries_* functions signature mismatch
mt76: mt7915: fix an off-by-one bound check
mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
block: remove inaccurate requeue check
media: allegro: ignore interrupt if mailbox is not initialized
nvmet: fix use-after-free when a port is removed
nvmet-rdma: fix use-after-free when a port is removed
nvmet-tcp: fix use-after-free when a port is removed
nvme: drop scan_lock and always kick requeue list when removing namespaces
PM: hibernate: Get block device exclusively in swsusp_check()
selftests: kvm: fix mismatched fclose() after popen()
selftests/bpf: Fix perf_buffer test on system with offline cpus
iwlwifi: mvm: disable RX-diversity in powersave
smackfs: use __GFP_NOFAIL for smk_cipso_doi()
ARM: clang: Do not rely on lr register for stacktrace
gre/sit: Don't generate link-local addr if addr_gen_mode is IN6_ADDR_GEN_MODE_NONE
gfs2: Cancel remote delete work asynchronously
gfs2: Fix glock_hash_walk bugs
ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
vrf: run conntrack only in context of lower/physdev for locally generated packets
net: annotate data-race in neigh_output()
ACPI: AC: Quirk GK45 to skip reading _PSR
btrfs: reflink: initialize return value to 0 in btrfs_extent_same()
btrfs: do not take the uuid_mutex in btrfs_rm_device
spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()
wcn36xx: Correct band/freq reporting on RX
x86/hyperv: Protect set_hv_tscchange_cb() against getting preempted
drm/amd/display: dcn20_resource_construct reduce scope of FPU enabled
selftests/core: fix conflicting types compile error for close_range()
parisc: fix warning in flush_tlb_all
task_stack: Fix end_of_stack() for architectures with upwards-growing stack
erofs: don't trigger WARN() when decompression fails
parisc/unwind: fix unwinder when CONFIG_64BIT is enabled
parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
netfilter: conntrack: set on IPS_ASSURED if flows enters internal stream state
selftests/bpf: Fix strobemeta selftest regression
Bluetooth: fix init and cleanup of sco_conn.timeout_work
rcu: Fix existing exp request check in sync_sched_exp_online_cleanup()
MIPS: lantiq: dma: fix burst length for DEU
objtool: Add xen_start_kernel() to noreturn list
x86/xen: Mark cpu_bringup_and_idle() as dead_end_function
objtool: Fix static_call list generation
drm/v3d: fix wait for TMU write combiner flush
virtio-gpu: fix possible memory allocation failure
lockdep: Let lock_is_held_type() detect recursive read as read
net: net_namespace: Fix undefined member in key_remove_domain()
cgroup: Make rebind_subsystems() disable v2 controllers all at once
wcn36xx: Fix Antenna Diversity Switching
wilc1000: fix possible memory leak in cfg_scan_result()
Bluetooth: btmtkuart: fix a memleak in mtk_hci_wmt_sync
crypto: caam - disable pkc for non-E SoCs
rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies()
net: dsa: rtl8366rb: Fix off-by-one bug
ath11k: fix some sleeping in atomic bugs
ath11k: Avoid race during regd updates
ath11k: fix packet drops due to incorrect 6 GHz freq value in rx status
ath11k: Fix memory leak in ath11k_qmi_driver_event_work
ath10k: Fix missing frame timestamp for beacon/probe-resp
ath10k: sdio: Add missing BH locking around napi_schdule()
drm/ttm: stop calling tt_swapin in vm_access
arm64: mm: update max_pfn after memory hotplug
drm/amdgpu: fix warning for overflow check
media: em28xx: add missing em28xx_close_extension
media: cxd2880-spi: Fix a null pointer dereference on error handling path
media: dvb-usb: fix ununit-value in az6027_rc_query
media: v4l2-ioctl: S_CTRL output the right value
media: TDA1997x: handle short reads of hdmi info frame.
media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()'
media: radio-wl1273: Avoid card name truncation
media: si470x: Avoid card name truncation
media: tm6000: Avoid card name truncation
media: cx23885: Fix snd_card_free call on null card pointer
kprobes: Do not use local variable when creating debugfs file
crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency
cpuidle: Fix kobject memory leaks in error paths
media: em28xx: Don't use ops->suspend if it is NULL
ath9k: Fix potential interrupt storm on queue reset
PM: EM: Fix inefficient states detection
EDAC/amd64: Handle three rank interleaving mode
rcu: Always inline rcu_dynticks_task*_{enter,exit}()
netfilter: nft_dynset: relax superfluous check on set updates
media: dvb-frontends: mn88443x: Handle errors of clk_prepare_enable()
crypto: qat - detect PFVF collision after ACK
crypto: qat - disregard spurious PFVF interrupts
hwrng: mtk - Force runtime pm ops for sleep ops
b43legacy: fix a lower bounds test
b43: fix a lower bounds test
gve: Recover from queue stall due to missed IRQ
mmc: sdhci-omap: Fix NULL pointer exception if regulator is not configured
mmc: sdhci-omap: Fix context restore
memstick: avoid out-of-range warning
memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE
hwmon: Fix possible memleak in __hwmon_device_register()
hwmon: (pmbus/lm25066) Let compiler determine outer dimension of lm25066_coeff
ath10k: fix max antenna gain unit
kernel/sched: Fix sched_fork() access an invalid sched_task_group
tcp: switch orphan_count to bare per-cpu counters
drm/msm: potential error pointer dereference in init()
drm/msm: uninitialized variable in msm_gem_import()
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
media: ir_toy: assignment to be16 should be of correct type
mmc: mxs-mmc: disable regulator on error and in the remove function
platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
mt76: mt7615: fix endianness warning in mt7615_mac_write_txwi
mt76: mt76x02: fix endianness warnings in mt76x02_mac.c
mt76: mt7915: fix possible infinite loop release semaphore
mt76: mt7915: fix sta_rec_wtbl tag len
mt76: mt7915: fix muar_idx in mt7915_mcu_alloc_sta_req()
rsi: stop thread firstly in rsi_91x_init() error handling
mwifiex: Send DELBA requests according to spec
net: enetc: unmap DMA in enetc_send_cmd()
phy: micrel: ksz8041nl: do not use power down mode
nvme-rdma: fix error code in nvme_rdma_setup_ctrl
PM: hibernate: fix sparse warnings
clocksource/drivers/timer-ti-dm: Select TIMER_OF
x86/sev: Fix stack type check in vc_switch_off_ist()
drm/msm: Fix potential NULL dereference in DPU SSPP
smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
KVM: selftests: Add operand to vmsave/vmload/vmrun in svm.c
KVM: selftests: Fix nested SVM tests when built with clang
bpftool: Avoid leaking the JSON writer prepared for program metadata
libbpf: Fix BTF data layout checks and allow empty BTF
libbpf: Allow loading empty BTFs
libbpf: Fix overflow in BTF sanity checks
libbpf: Fix BTF header parsing checks
s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
KVM: s390: pv: avoid double free of sida page
KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
irq: mips: avoid nested irq_enter()
tpm: fix Atmel TPM crash caused by too frequent queries
tpm_tis_spi: Add missing SPI ID
libbpf: Fix endianness detection in BPF_CORE_READ_BITFIELD_PROBED()
tcp: don't free a FIN sk_buff in tcp_remove_empty_skb()
spi: spi-rpc-if: Check return value of rpcif_sw_init()
samples/kretprobes: Fix return value if register_kretprobe() failed
KVM: s390: Fix handle_sske page fault handling
libertas_tf: Fix possible memory leak in probe and disconnect
libertas: Fix possible memory leak in probe and disconnect
wcn36xx: add proper DMA memory barriers in rx path
wcn36xx: Fix discarded frames due to wrong sequence number
drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits
selftests: bpf: Convert sk_lookup ctx access tests to PROG_TEST_RUN
selftests/bpf: Fix fd cleanup in sk_lookup test
net: amd-xgbe: Toggle PLL settings during rate change
net: phylink: avoid mvneta warning when setting pause parameters
crypto: pcrypt - Delay write to padata->info
selftests/bpf: Fix fclose/pclose mismatch in test_progs
udp6: allow SO_MARK ctrl msg to affect routing
ibmvnic: don't stop queue in xmit
ibmvnic: Process crqs after enabling interrupts
cgroup: Fix rootcg cpu.stat guest double counting
bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
of: unittest: fix EXPECT text for gpio hog errors
iio: st_sensors: Call st_sensors_power_enable() from bus drivers
iio: st_sensors: disable regulators after device unregistration
RDMA/rxe: Fix wrong port_cap_flags
ARM: dts: BCM5301X: Fix memory nodes names
clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths
ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
arm64: dts: rockchip: Fix GPU register width for RK3328
ARM: dts: qcom: msm8974: Add xo_board reference clock to DSI0 PHY
RDMA/bnxt_re: Fix query SRQ failure
arm64: dts: ti: k3-j721e-main: Fix "max-virtual-functions" in PCIe EP nodes
arm64: dts: ti: k3-j721e-main: Fix "bus-range" upto 256 bus number for PCIe
arm64: dts: meson-g12a: Fix the pwm regulator supply properties
arm64: dts: meson-g12b: Fix the pwm regulator supply properties
bus: ti-sysc: Fix timekeeping_suspended warning on resume
ARM: dts: at91: tse850: the emac<->phy interface is rmii
scsi: dc395: Fix error case unwinding
MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT
JFS: fix memleak in jfs_mount
arm64: dts: qcom: msm8916: Fix Secondary MI2S bit clock
arm64: dts: renesas: beacon: Fix Ethernet PHY mode
arm64: dts: qcom: pm8916: Remove wrong reg-names for rtc@6000
ALSA: hda: Reduce udelay() at SKL+ position reporting
ALSA: hda: Release controller display power during shutdown/reboot
ALSA: hda: Fix hang during shutdown due to link reset
ALSA: hda: Use position buffer for SKL+ again
soundwire: debugfs: use controller id and link_id for debugfs
scsi: pm80xx: Fix misleading log statement in pm8001_mpi_get_nvmd_resp()
driver core: Fix possible memory leak in device_link_add()
arm: dts: omap3-gta04a4: accelerometer irq fix
ASoC: SOF: topology: do not power down primary core during topology removal
soc/tegra: Fix an error handling path in tegra_powergate_power_up()
memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
clk: at91: check pmc node status before registering syscore ops
video: fbdev: chipsfb: use memset_io() instead of memset()
powerpc: Refactor is_kvm_guest() declaration to new header
powerpc: Rename is_kvm_guest() to check_kvm_guest()
powerpc: Reintroduce is_kvm_guest() as a fast-path check
powerpc: Fix is_kvm_guest() / kvm_para_available()
powerpc: fix unbalanced node refcount in check_kvm_guest()
serial: 8250_dw: Drop wrong use of ACPI_PTR()
usb: gadget: hid: fix error code in do_config()
power: supply: rt5033_battery: Change voltage values to µV
power: supply: max17040: fix null-ptr-deref in max17040_probe()
scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
RDMA/mlx4: Return missed an error if device doesn't support steering
usb: musb: select GENERIC_PHY instead of depending on it
staging: most: dim2: do not double-register the same device
staging: ks7010: select CRYPTO_HASH/CRYPTO_MICHAEL_MIC
pinctrl: renesas: checker: Fix off-by-one bug in drive register check
ARM: dts: stm32: Reduce DHCOR SPI NOR frequency to 50 MHz
ARM: dts: stm32: fix SAI sub nodes register range
ARM: dts: stm32: fix AV96 board SAI2 pin muxing on stm32mp15
ASoC: cs42l42: Correct some register default values
ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER
soc: qcom: rpmhpd: Provide some missing struct member descriptions
soc: qcom: rpmhpd: Make power_on actually enable the domain
usb: typec: STUSB160X should select REGMAP_I2C
iio: adis: do not disabe IRQs in 'adis_init()'
scsi: ufs: Refactor ufshcd_setup_clocks() to remove skip_ref_clk
scsi: ufs: ufshcd-pltfrm: Fix memory leak due to probe defer
serial: imx: fix detach/attach of serial console
usb: dwc2: drd: fix dwc2_force_mode call in dwc2_ovr_init
usb: dwc2: drd: fix dwc2_drd_role_sw_set when clock could be disabled
usb: dwc2: drd: reset current session before setting the new one
firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()
soc: qcom: apr: Add of_node_put() before return
pinctrl: equilibrium: Fix function addition in multiple groups
phy: qcom-qusb2: Fix a memory leak on probe
phy: ti: gmii-sel: check of_get_address() for failure
phy: qcom-snps: Correct the FSEL_MASK
serial: xilinx_uartps: Fix race condition causing stuck TX
clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL
HID: u2fzero: clarify error check and length calculations
HID: u2fzero: properly handle timeouts in usb_submit_urb
powerpc/44x/fsp2: add missing of_node_put
ASoC: cs42l42: Disable regulators if probe fails
ASoC: cs42l42: Use device_property API instead of of_property
ASoC: cs42l42: Correct configuring of switch inversion from ts-inv
virtio_ring: check desc == NULL when using indirect with packed
mips: cm: Convert to bitfield API to fix out-of-bounds access
power: supply: bq27xxx: Fix kernel crash on IRQ handler register error
apparmor: fix error check
rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
nfsd: don't alloc under spinlock in rpc_parse_scope_id
i2c: mediatek: fixing the incorrect register offset
NFS: Fix dentry verifier races
pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds
drm/plane-helper: fix uninitialized variable reference
PCI: aardvark: Don't spam about PIO Response Status
PCI: aardvark: Fix preserving PCI_EXP_RTCTL_CRSSVE flag on emulated bridge
opp: Fix return in _opp_add_static_v2()
NFS: Fix deadlocks in nfs_scan_commit_list()
fs: orangefs: fix error return code of orangefs_revalidate_lookup()
mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare()
PCI: uniphier: Serialize INTx masking/unmasking and fix the bit operation
mtd: core: don't remove debugfs directory if device is in use
remoteproc: Fix a memory leak in an error handling path in 'rproc_handle_vdev()'
rtc: rv3032: fix error handling in rv3032_clkout_set_rate()
dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
NFS: Fix up commit deadlocks
NFS: Fix an Oops in pnfs_mark_request_commit()
Fix user namespace leak
auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string
auxdisplay: ht16k33: Connect backlight to fbdev
auxdisplay: ht16k33: Fix frame buffer device blanking
soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read
netfilter: nfnetlink_queue: fix OOB when mac header was cleared
dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result`
signal/sh: Use force_sig(SIGKILL) instead of do_group_exit(SIGKILL)
m68k: set a default value for MEMORY_RESERVE
watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
ar7: fix kernel builds for compiler test
scsi: qla2xxx: Changes to support FCP2 Target
scsi: qla2xxx: Relogin during fabric disturbance
scsi: qla2xxx: Fix gnl list corruption
scsi: qla2xxx: Turn off target reset during issue_lip
NFSv4: Fix a regression in nfs_set_open_stateid_locked()
i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'
xen-pciback: Fix return in pm_ctrl_init()
net: davinci_emac: Fix interrupt pacing disable
ethtool: fix ethtool msg len calculation for pause stats
openrisc: fix SMP tlb flush NULL pointer dereference
net: vlan: fix a UAF in vlan_dev_real_dev()
ice: Fix replacing VF hardware MAC to existing MAC filter
ice: Fix not stopping Tx queues for VFs
ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
drm/nouveau/svm: Fix refcount leak bug and missing check against null bug
net: phy: fix duplex out of sync problem while changing settings
bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
mfd: core: Add missing of_node_put for loop iteration
can: mcp251xfd: mcp251xfd_chip_start(): fix error handling for mcp251xfd_chip_rx_int_enable()
mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
zram: off by one in read_block_state()
perf bpf: Add missing free to bpf_event__print_bpf_prog_info()
llc: fix out-of-bound array index in llc_sk_dev_hash()
nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions
bpf, sockmap: Remove unhash handler for BPF sockmap usage
bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding
gve: Fix off by one in gve_tx_timeout()
seq_file: fix passing wrong private data
net/sched: sch_taprio: fix undefined behavior in ktime_mono_to_any
net: hns3: fix kernel crash when unload VF while it is being reset
net: hns3: allow configure ETS bandwidth of all TCs
net: stmmac: allow a tc-taprio base-time of zero
vsock: prevent unnecessary refcnt inc for nonblocking connect
net/smc: fix sk_refcnt underflow on linkdown and fallback
cxgb4: fix eeprom len when diagnostics not implemented
selftests/net: udpgso_bench_rx: fix port argument
ARM: 9155/1: fix early early_iounmap()
ARM: 9156/1: drop cc-option fallbacks for architecture selection
parisc: Fix backtrace to always include init funtion names
MIPS: Fix assembly error from MIPSr2 code used within MIPS_ISA_ARCH_LEVEL
x86/mce: Add errata workaround for Skylake SKX37
posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()
irqchip/sifive-plic: Fixup EOI failed when masked
f2fs: should use GFP_NOFS for directory inodes
net, neigh: Enable state migration between NUD_PERMANENT and NTF_USE
9p/net: fix missing error check in p9_check_errors
memcg: prohibit unconditional exceeding the limit of dying tasks
powerpc/lib: Add helper to check if offset is within conditional branch range
powerpc/bpf: Validate branch ranges
powerpc/security: Add a helper to query stf_barrier type
powerpc/bpf: Emit stf barrier instruction sequences for BPF_NOSPEC
mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
mm, oom: do not trigger out_of_memory from the #PF
mfd: dln2: Add cell for initializing DLN2 ADC
video: backlight: Drop maximum brightness override for brightness zero
s390/cio: check the subchannel validity for dev_busid
s390/tape: fix timer initialization in tape_std_assign()
s390/ap: Fix hanging ioctl caused by orphaned replies
s390/cio: make ccw_device_dma_* more robust
mtd: rawnand: ams-delta: Keep the driver compatible with on-die ECC engines
mtd: rawnand: xway: Keep the driver compatible with on-die ECC engines
mtd: rawnand: mpc5121: Keep the driver compatible with on-die ECC engines
mtd: rawnand: gpio: Keep the driver compatible with on-die ECC engines
mtd: rawnand: pasemi: Keep the driver compatible with on-die ECC engines
mtd: rawnand: orion: Keep the driver compatible with on-die ECC engines
mtd: rawnand: plat_nand: Keep the driver compatible with on-die ECC engines
mtd: rawnand: au1550nd: Keep the driver compatible with on-die ECC engines
powerpc/powernv/prd: Unregister OPAL_MSG_PRD2 notifier during module unload
powerpc/85xx: fix timebase sync issue when CONFIG_HOTPLUG_CPU=n
drm/sun4i: Fix macros in sun8i_csc.h
PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
PCI: aardvark: Fix PCIe Max Payload Size setting
SUNRPC: Partial revert of commit
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Eric Biggers
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68ac723fb1 |
fscrypt: allow 256-bit master keys with AES-256-XTS
[ Upstream commit 7f595d6a6cdc336834552069a2e0a4f6d4756ddf ] fscrypt currently requires a 512-bit master key when AES-256-XTS is used, since AES-256-XTS keys are 512-bit and fscrypt requires that the master key be at least as long any key that will be derived from it. However, this is overly strict because AES-256-XTS doesn't actually have a 512-bit security strength, but rather 256-bit. The fact that XTS takes twice the expected key size is a quirk of the XTS mode. It is sufficient to use 256 bits of entropy for AES-256-XTS, provided that it is first properly expanded into a 512-bit key, which HKDF-SHA512 does. Therefore, relax the check of the master key size to use the security strength of the derived key rather than the size of the derived key (except for v1 encryption policies, which don't use HKDF). Besides making things more flexible for userspace, this is needed in order for the use of a KDF which only takes a 256-bit key to be introduced into the fscrypt key hierarchy. This will happen with hardware-wrapped keys support, as all known hardware which supports that feature uses an SP800-108 KDF using AES-256-CMAC, so the wrapped keys are wrapped 256-bit AES keys. Moreover, there is interest in fscrypt supporting the same type of AES-256-CMAC based KDF in software as an alternative to HKDF-SHA512. There is no security problem with such features, so fix the key length check to work properly with them. Reviewed-by: Paul Crowley <paulcrowley@google.com> Link: https://lore.kernel.org/r/20210921030303.5598-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Greg Kroah-Hartman
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77b971b479 |
This is the 5.10.63 stable release
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Eric Biggers
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b8c298cf57 |
fscrypt: add fscrypt_symlink_getattr() for computing st_size
commit d18760560593e5af921f51a8c9b64b6109d634c2 upstream.
Add a helper function fscrypt_symlink_getattr() which will be called
from the various filesystems' ->getattr() methods to read and decrypt
the target of encrypted symlinks in order to report the correct st_size.
Detailed explanation:
As required by POSIX and as documented in various man pages, st_size for
a symlink is supposed to be the length of the symlink target.
Unfortunately, st_size has always been wrong for encrypted symlinks
because st_size is populated from i_size from disk, which intentionally
contains the length of the encrypted symlink target. That's slightly
greater than the length of the decrypted symlink target (which is the
symlink target that userspace usually sees), and usually won't match the
length of the no-key encoded symlink target either.
This hadn't been fixed yet because reporting the correct st_size would
require reading the symlink target from disk and decrypting or encoding
it, which historically has been considered too heavyweight to do in
->getattr(). Also historically, the wrong st_size had only broken a
test (LTP lstat03) and there were no known complaints from real users.
(This is probably because the st_size of symlinks isn't used too often,
and when it is, typically it's for a hint for what buffer size to pass
to readlink() -- which a slightly-too-large size still works for.)
However, a couple things have changed now. First, there have recently
been complaints about the current behavior from real users:
- Breakage in rpmbuild:
https://github.com/rpm-software-management/rpm/issues/1682
https://github.com/google/fscrypt/issues/305
- Breakage in toybox cpio:
https://www.mail-archive.com/toybox@lists.landley.net/msg07193.html
- Breakage in libgit2: https://issuetracker.google.com/issues/189629152
(on Android public issue tracker, requires login)
Second, we now cache decrypted symlink targets in ->i_link. Therefore,
taking the performance hit of reading and decrypting the symlink target
in ->getattr() wouldn't be as big a deal as it used to be, since usually
it will just save having to do the same thing later.
Also note that eCryptfs ended up having to read and decrypt symlink
targets in ->getattr() as well, to fix this same issue; see
commit
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Greg Kroah-Hartman
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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
|
||
|
Eric Biggers
|
b5a2b5b642 |
fscrypt: fix derivation of SipHash keys on big endian CPUs
commit 2fc2b430f559fdf32d5d1dd5ceaa40e12fb77bdf upstream. Typically, the cryptographic APIs that fscrypt uses take keys as byte arrays, which avoids endianness issues. However, siphash_key_t is an exception. It is defined as 'u64 key[2];', i.e. the 128-bit key is expected to be given directly as two 64-bit words in CPU endianness. fscrypt_derive_dirhash_key() and fscrypt_setup_iv_ino_lblk_32_key() forgot to take this into account. Therefore, the SipHash keys used to index encrypted+casefolded directories differ on big endian vs. little endian platforms, as do the SipHash keys used to hash inode numbers for IV_INO_LBLK_32-encrypted directories. This makes such directories non-portable between these platforms. Fix this by always using the little endian order. This is a breaking change for big endian platforms, but this should be fine in practice since these features (encrypt+casefold support, and the IV_INO_LBLK_32 flag) aren't known to actually be used on any big endian platforms yet. Fixes: |
||
|
Eric Biggers
|
089057af71 |
fscrypt: don't ignore minor_hash when hash is 0
commit 77f30bfcfcf484da7208affd6a9e63406420bf91 upstream.
When initializing a no-key name, fscrypt_fname_disk_to_usr() sets the
minor_hash to 0 if the (major) hash is 0.
This doesn't make sense because 0 is a valid hash code, so we shouldn't
ignore the filesystem-provided minor_hash in that case. Fix this by
removing the special case for 'hash == 0'.
This is an old bug that appears to have originated when the encryption
code in ext4 and f2fs was moved into fs/crypto/. The original ext4 and
f2fs code passed the hash by pointer instead of by value. So
'if (hash)' actually made sense then, as it was checking whether a
pointer was NULL. But now the hashes are passed by value, and
filesystems just pass 0 for any hashes they don't have. There is no
need to handle this any differently from the hashes actually being 0.
It is difficult to reproduce this bug, as it only made a difference in
the case where a filename's 32-bit major hash happened to be 0.
However, it probably had the largest chance of causing problems on
ubifs, since ubifs uses minor_hash to do lookups of no-key names, in
addition to using it as a readdir cookie. ext4 only uses minor_hash as
a readdir cookie, and f2fs doesn't use minor_hash at all.
Fixes:
|
||
Ard Biesheuvel
|
f90c8ffbd8 |
UPSTREAM: fscrypt: relax Kconfig dependencies for crypto API algorithms
Even if FS encryption has strict functional dependencies on various crypto algorithms and chaining modes. those dependencies could potentially be satisified by other implementations than the generic ones, and no link time dependency exists on the 'depends on' claused defined by CONFIG_FS_ENCRYPTION_ALGS. So let's relax these clauses to 'imply', so that the default behavior is still to pull in those generic algorithms, but in a way that permits them to be disabled again in Kconfig. Bug: 153614920 Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit a0fc20333ee4bac1147c4cf75dea098c26671a2f) Change-Id: I7c0b154094149e85cacaf22527e40d785e4b0396 Signed-off-by: Ard Biesheuvel <ardb@google.com> |
||
Satya Tangirala
|
9e7a6c5695 |
ANDROID: export fscrypt_limit_io_blocks()
The upstream version of the direct I/O on encrypted files patch series
missed exporting this function, which is needed if ext4 is built as a
module.
Bug: 162255927
Fixes: 0ea0eb628fee ("FROMLIST: fscrypt: Add functions for direct I/O support")
Change-Id: Ib827b4743423c7446436a47fcf95b255466288a3
Signed-off-by: Satya Tangirala <satyat@google.com>
|
||
|
Eric Biggers
|
c7615ef12b |
FROMLIST: fscrypt: Add functions for direct I/O support
Introduce fscrypt_dio_supported() to check whether a direct I/O request is unsupported due to encryption constraints. Also introduce fscrypt_limit_io_blocks() to limit how many blocks can be added to a bio being prepared for direct I/O. This is needed for filesystems that use the iomap direct I/O implementation to avoid DUN wraparound in the middle of a bio (which is possible with the IV_INO_LBLK_32 IV generation method). Elsewhere fscrypt_mergeable_bio() is used for this, but iomap operates on logical ranges directly, so filesystems using iomap won't have a chance to call fscrypt_mergeable_bio() on every block added to a bio. So we need this function which limits a logical range in one go. Signed-off-by: Eric Biggers <ebiggers@google.com> Co-developed-by: Satya Tangirala <satyat@google.com> Signed-off-by: Satya Tangirala <satyat@google.com> Bug: 162255927 Link: https://lore.kernel.org/r/20200724184501.1651378-2-satyat@google.com Change-Id: I1dbd4f382d510d9b779d5e44a77fadf7040cf077 Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
|
d44ddbf417 |
ANDROID: revert fscrypt direct I/O support
Revert the direct I/O support for encrypted files so that we can bring in the latest version of the patches from the mailing list. This is needed because in v5.5 and later, the ext4 support (via fs/iomap/) is broken as-is -- not only is the second call to fscrypt_limit_dio_pages() in the wrong place, but bios can exceed the intended nr_pages limit due to multipage bvecs. In order to fix this we need the v6 patches which make fs/ext4/ handle the limiting instead of fs/iomap/. On android-mainline, this fixes a failure in vts_kernel_encryption_test (specifically, FBEPolicyTest#TestAesEmmcOptimizedPolicy) when run on a device that uses the inlinecrypt mount option on ext4 (e.g. db845c). Bug: 162255927 Bug: 171462575 Change-Id: I0da753dc9e0e7bc8d84bbcadfdfcdb9328cdb8d8 Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Satya Tangirala <satyat@google.com> |
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Jaegeuk Kim
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51ca215606 |
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android12-5.10
* aosp/upstream-f2fs-stable-linux-5.10.y: fs-verity: move structs needed for file signing to UAPI header fs-verity: rename "file measurement" to "file digest" fs-verity: rename fsverity_signed_digest to fsverity_formatted_digest fs-verity: remove filenames from file comments fscrypt: allow deleting files with unsupported encryption policy fscrypt: unexport fscrypt_get_encryption_info() fscrypt: move fscrypt_require_key() to fscrypt_private.h fscrypt: move body of fscrypt_prepare_setattr() out-of-line fscrypt: introduce fscrypt_prepare_readdir() ext4: don't call fscrypt_get_encryption_info() from dx_show_leaf() ubifs: remove ubifs_dir_open() f2fs: remove f2fs_dir_open() ext4: remove ext4_dir_open() fscrypt: simplify master key locking fscrypt: remove unnecessary calls to fscrypt_require_key() ubifs: prevent creating duplicate encrypted filenames f2fs: prevent creating duplicate encrypted filenames ext4: prevent creating duplicate encrypted filenames fscrypt: add fscrypt_is_nokey_name() fscrypt: remove kernel-internal constants from UAPI header Conflicts: fs/crypto/hooks.c Bug: 174873661 Signed-off-by: Jaegeuk Kim <jaegeuk@google.com> Change-Id: Id56d42fc959242524628752223e9d773a2c8681c |
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Eric Biggers
|
a7359960b6 |
fscrypt: allow deleting files with unsupported encryption policy
Currently it's impossible to delete files that use an unsupported encryption policy, as the kernel will just return an error when performing any operation on the top-level encrypted directory, even just a path lookup into the directory or opening the directory for readdir. More specifically, this occurs in any of the following cases: - The encryption context has an unrecognized version number. Current kernels know about v1 and v2, but there could be more versions in the future. - The encryption context has unrecognized encryption modes (FSCRYPT_MODE_*) or flags (FSCRYPT_POLICY_FLAG_*), an unrecognized combination of modes, or reserved bits set. - The encryption key has been added and the encryption modes are recognized but aren't available in the crypto API -- for example, a directory is encrypted with FSCRYPT_MODE_ADIANTUM but the kernel doesn't have CONFIG_CRYPTO_ADIANTUM enabled. It's desirable to return errors for most operations on files that use an unsupported encryption policy, but the current behavior is too strict. We need to allow enough to delete files, so that people can't be stuck with undeletable files when downgrading kernel versions. That includes allowing directories to be listed and allowing dentries to be looked up. Fix this by modifying the key setup logic to treat an unsupported encryption policy in the same way as "key unavailable" in the cases that are required for a recursive delete to work: preparing for a readdir or a dentry lookup, revalidating a dentry, or checking whether an inode has the same encryption policy as its parent directory. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/20201203022041.230976-10-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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94bb3de392 |
fscrypt: unexport fscrypt_get_encryption_info()
Now that fscrypt_get_encryption_info() is only called from files in fs/crypto/ (due to all key setup now being handled by higher-level helper functions instead of directly by filesystems), unexport it and move its declaration to fscrypt_private.h. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/20201203022041.230976-9-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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0f25cf6b92 |
fscrypt: move fscrypt_require_key() to fscrypt_private.h
fscrypt_require_key() is now only used by files in fs/crypto/. So reduce its visibility to fscrypt_private.h. This is also a prerequsite for unexporting fscrypt_get_encryption_info(). Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/20201203022041.230976-8-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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9aa0e0ab0d |
fscrypt: move body of fscrypt_prepare_setattr() out-of-line
In preparation for reducing the visibility of fscrypt_require_key() by moving it to fscrypt_private.h, move the call to it from fscrypt_prepare_setattr() to an out-of-line function. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/20201203022041.230976-7-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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4af7c34103 |
fscrypt: introduce fscrypt_prepare_readdir()
The last remaining use of fscrypt_get_encryption_info() from filesystems is for readdir (->iterate_shared()). Every other call is now in fs/crypto/ as part of some other higher-level operation. We need to add a new argument to fscrypt_get_encryption_info() to indicate whether the encryption policy is allowed to be unrecognized or not. Doing this is easier if we can work with high-level operations rather than direct filesystem use of fscrypt_get_encryption_info(). So add a function fscrypt_prepare_readdir() which wraps the call to fscrypt_get_encryption_info() for the readdir use case. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/20201203022041.230976-6-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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3b743b0063 |
fscrypt: simplify master key locking
The stated reasons for separating fscrypt_master_key::mk_secret_sem from the standard semaphore contained in every 'struct key' no longer apply. First, due to commit |
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Eric Biggers
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26461e30a7 |
fscrypt: remove unnecessary calls to fscrypt_require_key()
In an encrypted directory, a regular dentry (one that doesn't have the no-key name flag) can only be created if the directory's encryption key is available. Therefore the calls to fscrypt_require_key() in __fscrypt_prepare_link() and __fscrypt_prepare_rename() are unnecessary, as these functions already check that the dentries they're given aren't no-key names. Remove these unnecessary calls to fscrypt_require_key(). Link: https://lore.kernel.org/r/20201118075609.120337-6-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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6b764a0e30 |
fscrypt: add fscrypt_is_nokey_name()
It's possible to create a duplicate filename in an encrypted directory by creating a file concurrently with adding the encryption key. Specifically, sys_open(O_CREAT) (or sys_mkdir(), sys_mknod(), or sys_symlink()) can lookup the target filename while the directory's encryption key hasn't been added yet, resulting in a negative no-key dentry. The VFS then calls ->create() (or ->mkdir(), ->mknod(), or ->symlink()) because the dentry is negative. Normally, ->create() would return -ENOKEY due to the directory's key being unavailable. However, if the key was added between the dentry lookup and ->create(), then the filesystem will go ahead and try to create the file. If the target filename happens to already exist as a normal name (not a no-key name), a duplicate filename may be added to the directory. In order to fix this, we need to fix the filesystems to prevent ->create(), ->mkdir(), ->mknod(), and ->symlink() on no-key names. (->rename() and ->link() need it too, but those are already handled correctly by fscrypt_prepare_rename() and fscrypt_prepare_link().) In preparation for this, add a helper function fscrypt_is_nokey_name() that filesystems can use to do this check. Use this helper function for the existing checks that fs/crypto/ does for rename and link. Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201118075609.120337-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
|
9eb2976da7 |
fscrypt: remove kernel-internal constants from UAPI header
There isn't really any valid reason to use __FSCRYPT_MODE_MAX or
FSCRYPT_POLICY_FLAGS_VALID in a userspace program. These constants are
only meant to be used by the kernel internally, and they are defined in
the UAPI header next to the mode numbers and flags only so that kernel
developers don't forget to update them when adding new modes or flags.
In https://lkml.kernel.org/r/20201005074133.1958633-2-satyat@google.com
there was an example of someone wanting to use __FSCRYPT_MODE_MAX in a
user program, and it was wrong because the program would have broken if
__FSCRYPT_MODE_MAX were ever increased. So having this definition
available is harmful. FSCRYPT_POLICY_FLAGS_VALID has the same problem.
So, remove these definitions from the UAPI header. Replace
FSCRYPT_POLICY_FLAGS_VALID with just listing the valid flags explicitly
in the one kernel function that needs it. Move __FSCRYPT_MODE_MAX to
fscrypt_private.h, remove the double underscores (which were only
present to discourage use by userspace), and add a BUILD_BUG_ON() and
comments to (hopefully) ensure it is kept in sync.
Keep the old name FS_POLICY_FLAGS_VALID, since it's been around for
longer and there's a greater chance that removing it would break source
compatibility with some program. Indeed, mtd-utils is using it in
an #ifdef, and removing it would introduce compiler warnings (about
FS_POLICY_FLAGS_PAD_* being redefined) into the mtd-utils build.
However, reduce its value to 0x07 so that it only includes the flags
with old names (the ones present before Linux 5.4), and try to make it
clear that it's now "frozen" and no new flags should be added to it.
Fixes:
|
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Greg Kroah-Hartman
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a7c33264f9 |
ANDROID: crypto: keysetup: use FSCRYPT_MODE_MAX instead of __FSCRYPT_MODE_MAX
In 5.10.3 the commit |
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Greg Kroah-Hartman
|
499df25c94 |
This is the 5.10.3 stable release
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Eric Biggers
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2da473e59e |
fscrypt: add fscrypt_is_nokey_name()
commit 159e1de201b6fca10bfec50405a3b53a561096a8 upstream. It's possible to create a duplicate filename in an encrypted directory by creating a file concurrently with adding the encryption key. Specifically, sys_open(O_CREAT) (or sys_mkdir(), sys_mknod(), or sys_symlink()) can lookup the target filename while the directory's encryption key hasn't been added yet, resulting in a negative no-key dentry. The VFS then calls ->create() (or ->mkdir(), ->mknod(), or ->symlink()) because the dentry is negative. Normally, ->create() would return -ENOKEY due to the directory's key being unavailable. However, if the key was added between the dentry lookup and ->create(), then the filesystem will go ahead and try to create the file. If the target filename happens to already exist as a normal name (not a no-key name), a duplicate filename may be added to the directory. In order to fix this, we need to fix the filesystems to prevent ->create(), ->mkdir(), ->mknod(), and ->symlink() on no-key names. (->rename() and ->link() need it too, but those are already handled correctly by fscrypt_prepare_rename() and fscrypt_prepare_link().) In preparation for this, add a helper function fscrypt_is_nokey_name() that filesystems can use to do this check. Use this helper function for the existing checks that fs/crypto/ does for rename and link. Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201118075609.120337-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Eric Biggers
|
3b7c17a814 |
fscrypt: remove kernel-internal constants from UAPI header
commit 3ceb6543e9cf6ed87cc1fbc6f23ca2db903564cd upstream.
There isn't really any valid reason to use __FSCRYPT_MODE_MAX or
FSCRYPT_POLICY_FLAGS_VALID in a userspace program. These constants are
only meant to be used by the kernel internally, and they are defined in
the UAPI header next to the mode numbers and flags only so that kernel
developers don't forget to update them when adding new modes or flags.
In https://lkml.kernel.org/r/20201005074133.1958633-2-satyat@google.com
there was an example of someone wanting to use __FSCRYPT_MODE_MAX in a
user program, and it was wrong because the program would have broken if
__FSCRYPT_MODE_MAX were ever increased. So having this definition
available is harmful. FSCRYPT_POLICY_FLAGS_VALID has the same problem.
So, remove these definitions from the UAPI header. Replace
FSCRYPT_POLICY_FLAGS_VALID with just listing the valid flags explicitly
in the one kernel function that needs it. Move __FSCRYPT_MODE_MAX to
fscrypt_private.h, remove the double underscores (which were only
present to discourage use by userspace), and add a BUILD_BUG_ON() and
comments to (hopefully) ensure it is kept in sync.
Keep the old name FS_POLICY_FLAGS_VALID, since it's been around for
longer and there's a greater chance that removing it would break source
compatibility with some program. Indeed, mtd-utils is using it in
an #ifdef, and removing it would introduce compiler warnings (about
FS_POLICY_FLAGS_PAD_* being redefined) into the mtd-utils build.
However, reduce its value to 0x07 so that it only includes the flags
with old names (the ones present before Linux 5.4), and try to make it
clear that it's now "frozen" and no new flags should be added to it.
Fixes:
|
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Daniel Rosenberg
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39c8e0ea66 |
fscrypt: Have filesystems handle their d_ops
This shifts the responsibility of setting up dentry operations from fscrypt to the individual filesystems, allowing them to have their own operations while still setting fscrypt's d_revalidate as appropriate. Most filesystems can just use generic_set_encrypted_ci_d_ops, unless they have their own specific dentry operations as well. That operation will set the minimal d_ops required under the circumstances. Since the fscrypt d_ops are set later on, we must set all d_ops there, since we cannot adjust those later on. This should not result in any change in behavior. Signed-off-by: Daniel Rosenberg <drosen@google.com> Acked-by: Theodore Ts'o <tytso@mit.edu> Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
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Greg Kroah-Hartman
|
3428a2f782 |
Merge 585e5b17b9 ("Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt") into android-mainline
Steps on the way to 5.10-rc4 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I8554ba37704bee02192ff6117d4909fde568fca2 |
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Greg Kroah-Hartman
|
7f6480e40c |
Merge eccc876724 ("Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs") into android-mainline
Steps on the way to 5.10-rc4 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I9e0fa89c0f6f306fe802ae95c8d01d9ba558e111 |
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Eric Biggers
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d19d8d345e |
fscrypt: fix inline encryption not used on new files
The new helper function fscrypt_prepare_new_inode() runs before
S_ENCRYPTED has been set on the new inode. This accidentally made
fscrypt_select_encryption_impl() never enable inline encryption on newly
created files, due to its use of fscrypt_needs_contents_encryption()
which only returns true when S_ENCRYPTED is set.
Fix this by using S_ISREG() directly instead of
fscrypt_needs_contents_encryption(), analogous to what
select_encryption_mode() does.
I didn't notice this earlier because by design, the user-visible
behavior is the same (other than performance, potentially) regardless of
whether inline encryption is used or not.
Fixes:
|
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Eric Biggers
|
92cfcd030e |
fscrypt: remove reachable WARN in fscrypt_setup_iv_ino_lblk_32_key()
I_CREATING isn't actually set until the inode has been assigned an inode
number and inserted into the inode hash table. So the WARN_ON() in
fscrypt_setup_iv_ino_lblk_32_key() is wrong, and it can trigger when
creating an encrypted file on ext4. Remove it.
This was sometimes causing xfstest generic/602 to fail on ext4. I
didn't notice it before because due to a separate oversight, new inodes
that haven't been assigned an inode number yet don't necessarily have
i_ino == 0 as I had thought, so by chance I never saw the test fail.
Fixes:
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Greg Kroah-Hartman
|
9d77f49849 |
Merge 6f5032a852 ("Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt") into android-mainline
Steps on the way to 5.10-rc1 Change-Id: Ifceecc1b9f94ea893484002c69aeb7b82d246f64 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Eric Biggers
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5b2a828b98 |
fscrypt: export fscrypt_d_revalidate()
Dentries that represent no-key names must have a dentry_operations that includes fscrypt_d_revalidate(). Currently, this is handled by fscrypt_prepare_lookup() installing fscrypt_d_ops. However, ceph support for encryption (https://lore.kernel.org/r/20200914191707.380444-1-jlayton@kernel.org) can't use fscrypt_d_ops, since ceph already has its own dentry_operations. Similarly, ext4 and f2fs support for directories that are both encrypted and casefolded (https://lore.kernel.org/r/20200923010151.69506-1-drosen@google.com) can't use fscrypt_d_ops either, since casefolding requires some dentry operations too. To satisfy both users, we need to move the responsibility of installing the dentry_operations to filesystems. In preparation for this, export fscrypt_d_revalidate() and give it a !CONFIG_FS_ENCRYPTION stub. Reviewed-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200924054721.187797-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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501e43fbea |
fscrypt: rename DCACHE_ENCRYPTED_NAME to DCACHE_NOKEY_NAME
Originally we used the term "encrypted name" or "ciphertext name" to mean the encoded filename that is shown when an encrypted directory is listed without its key. But these terms are ambiguous since they also mean the filename stored on-disk. "Encrypted name" is especially ambiguous since it could also be understood to mean "this filename is encrypted on-disk", similar to "encrypted file". So we've started calling these encoded names "no-key names" instead. Therefore, rename DCACHE_ENCRYPTED_NAME to DCACHE_NOKEY_NAME to avoid confusion about what this flag means. Link: https://lore.kernel.org/r/20200924042624.98439-3-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
|
70fb2612aa |
fscrypt: don't call no-key names "ciphertext names"
Currently we're using the term "ciphertext name" ambiguously because it can mean either the actual ciphertext filename, or the encoded filename that is shown when an encrypted directory is listed without its key. The latter we're now usually calling the "no-key name"; and while it's derived from the ciphertext name, it's not the same thing. To avoid this ambiguity, rename fscrypt_name::is_ciphertext_name to fscrypt_name::is_nokey_name, and update comments that say "ciphertext name" (or "encrypted name") to say "no-key name" instead when warranted. Link: https://lore.kernel.org/r/20200924042624.98439-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
|
0c6a113b24 |
fscrypt: use sha256() instead of open coding
Now that there's a library function that calculates the SHA-256 digest of a buffer in one step, use it instead of sha256_init() + sha256_update() + sha256_final(). Link: https://lore.kernel.org/r/20200917045341.324996-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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c8c868abc9 |
fscrypt: make fscrypt_set_test_dummy_encryption() take a 'const char *'
fscrypt_set_test_dummy_encryption() requires that the optional argument to the test_dummy_encryption mount option be specified as a substring_t. That doesn't work well with filesystems that use the new mount API, since the new way of parsing mount options doesn't use substring_t. Make it take the argument as a 'const char *' instead. Instead of moving the match_strdup() into the callers in ext4 and f2fs, make them just use arg->from directly. Since the pattern is "test_dummy_encryption=%s", the argument will be null-terminated. Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-14-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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ac4acb1f4b |
fscrypt: handle test_dummy_encryption in more logical way
The behavior of the test_dummy_encryption mount option is that when a
new file (or directory or symlink) is created in an unencrypted
directory, it's automatically encrypted using a dummy encryption policy.
That's it; in particular, the encryption (or lack thereof) of existing
files (or directories or symlinks) doesn't change.
Unfortunately the implementation of test_dummy_encryption is a bit weird
and confusing. When test_dummy_encryption is enabled and a file is
being created in an unencrypted directory, we set up an encryption key
(->i_crypt_info) for the directory. This isn't actually used to do any
encryption, however, since the directory is still unencrypted! Instead,
->i_crypt_info is only used for inheriting the encryption policy.
One consequence of this is that the filesystem ends up providing a
"dummy context" (policy + nonce) instead of a "dummy policy". In
commit
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Eric Biggers
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31114726b6 |
fscrypt: move fscrypt_prepare_symlink() out-of-line
In preparation for moving the logic for "get the encryption policy inherited by new files in this directory" to a single place, make fscrypt_prepare_symlink() a regular function rather than an inline function that wraps __fscrypt_prepare_symlink(). This way, the new function fscrypt_policy_to_inherit() won't need to be exported to filesystems. Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-12-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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c7f0207b61 |
fscrypt: make "#define fscrypt_policy" user-only
The fscrypt UAPI header defines fscrypt_policy to fscrypt_policy_v1, for source compatibility with old userspace programs. Internally, the kernel doesn't want that compatibility definition. Instead, fscrypt_private.h #undefs it and re-defines it to a union. That works for now. However, in order to add fscrypt_operations::get_dummy_policy(), we'll need to forward declare 'union fscrypt_policy' in include/linux/fscrypt.h. That would cause build errors because "fscrypt_policy" is used in ioctl numbers. To avoid this, modify the UAPI header to make the fscrypt_policy compatibility definition conditional on !__KERNEL__, and make the ioctls use fscrypt_policy_v1 instead of fscrypt_policy. Note that this doesn't change the actual ioctl numbers. Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-11-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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9dad5feb49 |
fscrypt: stop pretending that key setup is nofs-safe
fscrypt_get_encryption_info() has never actually been safe to call in a context that needs GFP_NOFS, since it calls crypto_alloc_skcipher(). crypto_alloc_skcipher() isn't GFP_NOFS-safe, even if called under memalloc_nofs_save(). This is because it may load kernel modules, and also because it internally takes crypto_alg_sem. Other tasks can do GFP_KERNEL allocations while holding crypto_alg_sem for write. The use of fscrypt_init_mutex isn't GFP_NOFS-safe either. So, stop pretending that fscrypt_get_encryption_info() is nofs-safe. I.e., when it allocates memory, just use GFP_KERNEL instead of GFP_NOFS. Note, another reason to do this is that GFP_NOFS is deprecated in favor of using memalloc_nofs_save() in the proper places. Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-10-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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4cc1a3e7e8 |
fscrypt: require that fscrypt_encrypt_symlink() already has key
Now that all filesystems have been converted to use fscrypt_prepare_new_inode(), the encryption key for new symlink inodes is now already set up whenever we try to encrypt the symlink target. Enforce this rather than try to set up the key again when it may be too late to do so safely. Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-9-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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e9d5e31d2f |
fscrypt: remove fscrypt_inherit_context()
Now that all filesystems have been converted to use fscrypt_prepare_new_inode() and fscrypt_set_context(), fscrypt_inherit_context() is no longer used. Remove it. Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-8-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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ae9ff8ad81 |
fscrypt: adjust logging for in-creation inodes
Now that a fscrypt_info may be set up for inodes that are currently being created and haven't yet had an inode number assigned, avoid logging confusing messages about "inode 0". Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-7-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |
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Eric Biggers
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a992b20cd4 |
fscrypt: add fscrypt_prepare_new_inode() and fscrypt_set_context()
fscrypt_get_encryption_info() is intended to be GFP_NOFS-safe. But actually it isn't, since it uses functions like crypto_alloc_skcipher() which aren't GFP_NOFS-safe, even when called under memalloc_nofs_save(). Therefore it can deadlock when called from a context that needs GFP_NOFS, e.g. during an ext4 transaction or between f2fs_lock_op() and f2fs_unlock_op(). This happens when creating a new encrypted file. We can't fix this by just not setting up the key for new inodes right away, since new symlinks need their key to encrypt the symlink target. So we need to set up the new inode's key before starting the transaction. But just calling fscrypt_get_encryption_info() earlier doesn't work, since it assumes the encryption context is already set, and the encryption context can't be set until the transaction. The recently proposed fscrypt support for the ceph filesystem (https://lkml.kernel.org/linux-fscrypt/20200821182813.52570-1-jlayton@kernel.org/T/#u) will have this same ordering problem too, since ceph will need to encrypt new symlinks before setting their encryption context. Finally, f2fs can deadlock when the filesystem is mounted with '-o test_dummy_encryption' and a new file is created in an existing unencrypted directory. Similarly, this is caused by holding too many locks when calling fscrypt_get_encryption_info(). To solve all these problems, add new helper functions: - fscrypt_prepare_new_inode() sets up a new inode's encryption key (fscrypt_info), using the parent directory's encryption policy and a new random nonce. It neither reads nor writes the encryption context. - fscrypt_set_context() persists the encryption context of a new inode, using the information from the fscrypt_info already in memory. This replaces fscrypt_inherit_context(). Temporarily keep fscrypt_inherit_context() around until all filesystems have been converted to use fscrypt_set_context(). Acked-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20200917041136.178600-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> |