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Christian A. Ehrhardt 6f72a3977b kernfs: fix use-after-free in __kernfs_remove 
commit 4abc99652812a2ddf932f137515d5c5a04723538 upstream.

Syzkaller managed to trigger concurrent calls to
kernfs_remove_by_name_ns() for the same file resulting in
a KASAN detected use-after-free. The race occurs when the root
node is freed during kernfs_drain().

To prevent this acquire an additional reference for the root
of the tree that is removed before calling __kernfs_remove().

Found by syzkaller with the following reproducer (slab_nomerge is
required):

syz_mount_image$ext4(0x0, &(0x7f0000000100)='./file0\x00', 0x100000, 0x0, 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='/proc/self/exe\x00', 0x0, 0x0)
close(r0)
pipe2(&(0x7f0000000140)={0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x800)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f00000000c0), 0x408, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x2c, {[{@cache_loose}, {@mmap}, {@loose}, {@loose}, {@mmap}], [{@mask={'mask', 0x3d, '^MAY_EXEC'}}, {@fsmagic={'fsmagic', 0x3d, 0x10001}}, {@dont_hash}]}})

Sample report:

==================================================================
BUG: KASAN: use-after-free in kernfs_type include/linux/kernfs.h:335 [inline]
BUG: KASAN: use-after-free in kernfs_leftmost_descendant fs/kernfs/dir.c:1261 [inline]
BUG: KASAN: use-after-free in __kernfs_remove.part.0+0x843/0x960 fs/kernfs/dir.c:1369
Read of size 2 at addr ffff8880088807f0 by task syz-executor.2/857

CPU: 0 PID: 857 Comm: syz-executor.2 Not tainted 6.0.0-rc3-00363-g7726d4c3e60b #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x6e/0x91 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:317 [inline]
 print_report.cold+0x5e/0x5e5 mm/kasan/report.c:433
 kasan_report+0xa3/0x130 mm/kasan/report.c:495
 kernfs_type include/linux/kernfs.h:335 [inline]
 kernfs_leftmost_descendant fs/kernfs/dir.c:1261 [inline]
 __kernfs_remove.part.0+0x843/0x960 fs/kernfs/dir.c:1369
 __kernfs_remove fs/kernfs/dir.c:1356 [inline]
 kernfs_remove_by_name_ns+0x108/0x190 fs/kernfs/dir.c:1589
 sysfs_slab_add+0x133/0x1e0 mm/slub.c:5943
 __kmem_cache_create+0x3e0/0x550 mm/slub.c:4899
 create_cache mm/slab_common.c:229 [inline]
 kmem_cache_create_usercopy+0x167/0x2a0 mm/slab_common.c:335
 p9_client_create+0xd4d/0x1190 net/9p/client.c:993
 v9fs_session_init+0x1e6/0x13c0 fs/9p/v9fs.c:408
 v9fs_mount+0xb9/0xbd0 fs/9p/vfs_super.c:126
 legacy_get_tree+0xf1/0x200 fs/fs_context.c:610
 vfs_get_tree+0x85/0x2e0 fs/super.c:1530
 do_new_mount fs/namespace.c:3040 [inline]
 path_mount+0x675/0x1d00 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x282/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f725f983aed
Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f725f0f7028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f725faa3f80 RCX: 00007f725f983aed
RDX: 00000000200000c0 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f725f9f419c R08: 0000000020000280 R09: 0000000000000000
R10: 0000000000000408 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f725faa3f80 R15: 00007f725f0d7000
 </TASK>

Allocated by task 855:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:437 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:470
 kasan_slab_alloc include/linux/kasan.h:224 [inline]
 slab_post_alloc_hook mm/slab.h:727 [inline]
 slab_alloc_node mm/slub.c:3243 [inline]
 slab_alloc mm/slub.c:3251 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3258 [inline]
 kmem_cache_alloc+0xbf/0x200 mm/slub.c:3268
 kmem_cache_zalloc include/linux/slab.h:723 [inline]
 __kernfs_new_node+0xd4/0x680 fs/kernfs/dir.c:593
 kernfs_new_node fs/kernfs/dir.c:655 [inline]
 kernfs_create_dir_ns+0x9c/0x220 fs/kernfs/dir.c:1010
 sysfs_create_dir_ns+0x127/0x290 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:63 [inline]
 kobject_add_internal+0x24a/0x8d0 lib/kobject.c:223
 kobject_add_varg lib/kobject.c:358 [inline]
 kobject_init_and_add+0x101/0x160 lib/kobject.c:441
 sysfs_slab_add+0x156/0x1e0 mm/slub.c:5954
 __kmem_cache_create+0x3e0/0x550 mm/slub.c:4899
 create_cache mm/slab_common.c:229 [inline]
 kmem_cache_create_usercopy+0x167/0x2a0 mm/slab_common.c:335
 p9_client_create+0xd4d/0x1190 net/9p/client.c:993
 v9fs_session_init+0x1e6/0x13c0 fs/9p/v9fs.c:408
 v9fs_mount+0xb9/0xbd0 fs/9p/vfs_super.c:126
 legacy_get_tree+0xf1/0x200 fs/fs_context.c:610
 vfs_get_tree+0x85/0x2e0 fs/super.c:1530
 do_new_mount fs/namespace.c:3040 [inline]
 path_mount+0x675/0x1d00 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x282/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 857:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:45
 kasan_set_free_info+0x20/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:367 [inline]
 ____kasan_slab_free mm/kasan/common.c:329 [inline]
 __kasan_slab_free+0x108/0x190 mm/kasan/common.c:375
 kasan_slab_free include/linux/kasan.h:200 [inline]
 slab_free_hook mm/slub.c:1754 [inline]
 slab_free_freelist_hook mm/slub.c:1780 [inline]
 slab_free mm/slub.c:3534 [inline]
 kmem_cache_free+0x9c/0x340 mm/slub.c:3551
 kernfs_put.part.0+0x2b2/0x520 fs/kernfs/dir.c:547
 kernfs_put+0x42/0x50 fs/kernfs/dir.c:521
 __kernfs_remove.part.0+0x72d/0x960 fs/kernfs/dir.c:1407
 __kernfs_remove fs/kernfs/dir.c:1356 [inline]
 kernfs_remove_by_name_ns+0x108/0x190 fs/kernfs/dir.c:1589
 sysfs_slab_add+0x133/0x1e0 mm/slub.c:5943
 __kmem_cache_create+0x3e0/0x550 mm/slub.c:4899
 create_cache mm/slab_common.c:229 [inline]
 kmem_cache_create_usercopy+0x167/0x2a0 mm/slab_common.c:335
 p9_client_create+0xd4d/0x1190 net/9p/client.c:993
 v9fs_session_init+0x1e6/0x13c0 fs/9p/v9fs.c:408
 v9fs_mount+0xb9/0xbd0 fs/9p/vfs_super.c:126
 legacy_get_tree+0xf1/0x200 fs/fs_context.c:610
 vfs_get_tree+0x85/0x2e0 fs/super.c:1530
 do_new_mount fs/namespace.c:3040 [inline]
 path_mount+0x675/0x1d00 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x282/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff888008880780
 which belongs to the cache kernfs_node_cache of size 128
The buggy address is located 112 bytes inside of
 128-byte region [ffff888008880780, ffff888008880800)

The buggy address belongs to the physical page:
page:00000000732833f8 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8880
flags: 0x100000000000200(slab|node=0|zone=1)
raw: 0100000000000200 0000000000000000 dead000000000122 ffff888001147280
raw: 0000000000000000 0000000000150015 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888008880680: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
 ffff888008880700: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff888008880780: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff888008880800: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
 ffff888008880880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================

Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable <stable@kernel.org> # -rc3
Signed-off-by: Christian A. Ehrhardt <lk@c--e.de>
Link: https://lore.kernel.org/r/20220913121723.691454-1-lk@c--e.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-03 23:57:50 +09:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-22 14:13:12 +02:00
adfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
affs fs/affs: release old buffer head on error path 2021-03-04 11:38:37 +01:00
afs afs: Return -EAGAIN, not -EREMOTEIO, when a file already locked 2022-09-23 14:17:00 +02:00
autofs autofs: harden ioctl table 2020-10-16 11:11:22 -07:00
befs
bfs bfs: don't use WARNING: string when it's just info. 2021-01-06 14:56:52 +01:00
btrfs btrfs: fix processing of delayed tree block refs during backref walking 2022-10-30 09:41:16 +01:00
cachefiles fs/cachefiles: Remove wait_bit_key layout dependency 2021-03-30 14:32:07 +02:00
ceph ceph: don't truncate file in atomic_open 2022-10-15 07:55:50 +02:00
cifs cifs: Fix xid leak in cifs_ses_add_channel() 2022-10-30 09:41:17 +01:00
coda
configfs configfs: fix a race in configfs_{,un}register_subsystem() 2022-03-02 11:42:52 +01:00
cramfs
crypto fscrypt: allow 256-bit master keys with AES-256-XTS 2021-11-18 14:03:54 +01:00
debugfs debugfs: add debugfs_lookup_and_remove() 2022-09-15 11:32:03 +02:00
devpts fsnotify: fix fsnotify hooks in pseudo filesystems 2022-02-01 17:25:39 +01:00
dlm fs: dlm: handle -EBUSY first in lock arg validation 2022-10-26 13:25:08 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 12:06:55 +02:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-11-25 16:55:02 +01:00
efs
erofs erofs: avoid consecutive detection for Highmem memory 2022-08-21 15:15:35 +02:00
exfat exfat: check if cluster num is valid 2022-06-06 08:42:42 +02:00
exportfs
ext2 ext2: Add more validity checks for inode counts 2022-08-21 15:15:28 +02:00
ext4 ext4: continue to expand file system when the target size doesn't reach 2022-10-26 13:25:56 +02:00
f2fs f2fs: fix wrong condition to trigger background checkpoint correctly 2022-10-26 13:25:56 +02:00
fat fat: add ratelimit to fat*_ent_bread() 2022-06-09 10:20:58 +02:00
freevxfs
fscache fscache: Fix cookie key hashing 2021-09-18 13:40:15 +02:00
fuse fuse: Remove the control interface for virtio-fs 2022-08-21 15:16:10 +02:00
gfs2 gfs2: use i_lock spin_lock for inode qadata 2022-06-09 10:20:57 +02:00
hfs hfs: add lock nesting notation to hfs_find_init 2021-07-31 08:16:12 +02:00
hfsplus hfsplus: prevent corruption in shrinking truncate 2021-05-19 10:13:10 +02:00
hostfs hostfs: fix memory handling in follow_link() 2021-04-14 08:42:06 +02:00
hpfs
hugetlbfs mm, hugetlb: allow for "high" userspace addresses 2022-04-27 13:53:54 +02:00
iomap xfs: use current->journal_info for detecting transaction recursion 2022-07-07 17:52:19 +02:00
isofs isofs: Fix out of bound access for corrupted isofs image 2021-11-12 14:58:33 +01:00
jbd2 jbd2: add miss release buffer head in fc_do_one_pass() 2022-10-26 13:25:13 +02:00
jffs2 jffs2: fix memory leak in jffs2_do_fill_super 2022-06-14 18:32:35 +02:00
jfs fs: jfs: fix possible NULL pointer dereference in dbFree() 2022-06-09 10:20:57 +02:00
kernfs kernfs: fix use-after-free in __kernfs_remove 2022-11-03 23:57:50 +09:00
lockd lockd: lockd server-side shouldn't set fl_ops 2021-09-18 13:40:30 +02:00
minix minix: fix bug when opening a file with O_DIRECT 2022-04-13 21:01:01 +02:00
nfs NFSv4: Turn off open-by-filehandle and NFS re-export for NFSv4.0 2022-09-23 14:16:57 +02:00
nfs_common nfs_common: need lock during iterate through the list 2020-12-30 11:53:45 +01:00
nfsd NFSD: fix use-after-free on source server when doing inter-server copy 2022-10-26 13:25:45 +02:00
nilfs2 nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure 2022-10-15 07:55:50 +02:00
nls
notify fsnotify: fix wrong lockdep annotations 2022-06-09 10:21:03 +02:00
ntfs ntfs: fix BUG_ON in ntfs_lookup_inode_by_name() 2022-10-05 10:38:39 +02:00
ocfs2 ocfs2: fix BUG when iput after ocfs2_mknod fails 2022-10-30 09:41:15 +01:00
omfs fs: omfs: use kmemdup() rather than kmalloc+memcpy 2020-09-22 23:39:45 -04:00
openpromfs
orangefs orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc() 2022-01-20 09:17:50 +01:00
overlayfs ovl: drop WARN_ON() dentry is NULL in ovl_encode_fh() 2022-08-21 15:15:23 +02:00
proc mm: /proc/pid/smaps_rollup: fix no vma's null-deref 2022-10-30 09:41:19 +01:00
pstore pstore: Don't use semaphores in always-atomic-context code 2022-04-08 14:39:56 +02:00
qnx4 qnx4: work around gcc false positive warning bug 2021-09-30 10:11:08 +02:00
qnx6
quota quota: Check next/prev free block number after reading from quota file 2022-10-26 13:25:09 +02:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-16 11:11:22 -07:00
reiserfs reiserfs: check directory items on read from disk 2021-08-12 13:22:19 +02:00
romfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
squashfs squashfs: fix divide error in calculate_skip() 2021-05-19 10:13:10 +02:00
sysfs sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2020-10-02 12:02:30 +02:00
sysv
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-20 12:38:31 +02:00
ubifs ubifs: Rectify space amount budget for mkdir/tmpfile operations 2022-04-13 21:00:53 +02:00
udf udf: Fix NULL ptr deref when converting from inline format 2022-02-01 17:25:39 +01:00
ufs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
unicode
vboxsf vboxfs: fix broken legacy mount signature checking 2021-10-17 10:43:33 +02:00
verity fs-verity: fix signed integer overflow with i_size near S64_MAX 2021-10-06 15:55:46 +02:00
xfs xfs: validate inode fork size against fork format 2022-09-28 11:10:29 +02:00
zonefs zonefs: fix zonefs_iomap_begin() for reads 2022-06-25 15:16:08 +02:00
aio.c aio: fix use-after-free due to missing POLLFREE handling 2021-12-14 11:32:40 +01:00
anon_inodes.c
attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-21 15:15:22 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c coredump: Snapshot the vmas in do_coredump 2022-04-08 14:40:44 +02:00
binfmt_elf.c fs/binfmt_elf: Fix memory leak in load_elf_binary() 2022-11-03 23:57:49 +09:00
binfmt_em86.c
binfmt_flat.c binfmt_flat: do not stop relocating GOT entries prematurely on riscv 2022-06-09 10:20:47 +02:00
binfmt_misc.c binfmt_misc: fix possible deadlock in bm_register_write 2021-03-17 17:06:35 +01:00
binfmt_script.c
block_dev.c block: fix a race between del_gendisk and BLKRRPART 2021-06-03 09:00:45 +02:00
buffer.c mm, memcg: rework remote charging API to support nesting 2020-10-18 09:27:09 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c coredump: Use the vma snapshot in fill_files_note 2022-04-08 14:40:45 +02:00
d_path.c fs: fix NULL dereference due to data race in prepend_path() 2020-10-14 14:54:45 -07:00
dax.c dax: fix cache flush on PMD-mapped pages 2022-06-09 10:21:16 +02:00
dcache.c
dcookies.c
direct-io.c fs: direct-io: fix missing sdio->boundary 2021-04-14 08:41:58 +02:00
drop_caches.c
eventfd.c
eventpoll.c epoll: autoremove wakers even more aggressively 2022-08-21 15:15:28 +02:00
exec.c exec: Copy oldsighand->action under spin-lock 2022-11-03 23:57:49 +09:00
fcntl.c fcntl: fix potential deadlocks for &fown_struct.lock 2022-10-30 09:41:18 +01:00
fhandle.c
file_table.c SUNRPC: Ensure we flush any closed sockets before xs_xprt_free() 2022-05-18 10:23:48 +02:00
file.c fs: fix fd table size alignment properly 2022-04-08 14:40:30 +02:00
filesystems.c
fs_context.c memcg: charge fs_context and legacy_fs_context 2022-02-08 18:30:36 +01:00
fs_parser.c fs_parse: mark fs_param_bad_value() as static 2020-10-13 18:38:27 -07:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages 2022-06-09 10:21:22 +02:00
fsopen.c
init.c
inode.c fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-15 07:55:51 +02:00
internal.h cgroup1: fix leaked context root causing sporadic NULL deref in LTP 2021-07-31 08:16:11 +02:00
io_uring.c io_uring/af_unix: defer registered files gc to io_uring release 2022-10-26 13:25:55 +02:00
io-wq.c io-wq: fix wakeup race when adding new work 2021-09-18 13:40:06 +02:00
io-wq.h io_uring: always batch cancel in *cancel_files() 2021-02-13 13:54:56 +01:00
ioctl.c fs: fix an infinite loop in iomap_fiemap 2022-05-25 09:17:54 +02:00
Kconfig tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha 2021-02-17 11:02:21 +01:00
Kconfig.binfmt
kernel_read_file.c vfs: check fd has read access in kernel_read_file_from_fd() 2021-10-27 09:56:51 +02:00
libfs.c libfs: fix error cast of negative value in simple_attr_write() 2020-11-22 10:48:22 -08:00
locks.c Revert "nfsd4: a client's own opens needn't prevent delegations" 2021-03-20 10:43:44 +01:00
Makefile Refactored code for 5.10: 2020-10-23 11:33:41 -07:00
mbcache.c
mount.h
mpage.c
namei.c __follow_mount_rcu(): verify that mount_lock remains unchanged 2022-08-21 15:16:15 +02:00
namespace.c fs: warn about impending deprecation of mandatory locks 2021-08-26 08:35:57 -04:00
no-block.c
nsfs.c
open.c open: don't silently ignore unknown O-flags in openat2() 2021-07-14 16:55:59 +02:00
pipe.c pipe: Fix missing lock in pipe_resize_ring() 2022-06-06 08:42:41 +02:00
pnode.c
pnode.h mount: fix mounting of detached mounts onto targets that reside on shared mounts 2021-03-17 17:06:13 +01:00
posix_acl.c
proc_namespace.c proc mountinfo: make splice available again 2020-12-30 11:54:02 +01:00
read_write.c Refactored code for 5.10: 2020-10-23 11:33:41 -07:00
readdir.c readdir: make sure to verify directory entry for legacy interfaces too 2021-04-21 13:00:54 +02:00
remap_range.c fs/remap: constrain dedupe of EOF blocks 2022-07-21 21:20:01 +02:00
select.c select: Fix indefinitely sleeping task in poll_schedule_timeout() 2022-01-29 10:26:11 +01:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-07-20 16:05:59 +02:00
signalfd.c io_uring: disable polling pollfree files 2022-09-05 10:28:58 +02:00
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-17 17:26:07 +02:00
stack.c
stat.c stat: fix inconsistency between struct stat and struct compat_stat 2022-04-27 13:53:54 +02:00
statfs.c
super.c vfs: make freeze_super abort when sync_filesystem returns error 2022-02-23 12:00:59 +01:00
sync.c vfs: make sync_filesystem return errors from ->sync_fs 2022-08-31 17:15:14 +02:00
timerfd.c
userfaultfd.c userfaultfd: open userfaultfds with O_RDONLY 2022-10-26 13:25:17 +02:00
utimes.c
xattr.c fs/xattr.c: fix kernel-doc warnings for setxattr & removexattr 2020-10-13 18:38:27 -07:00