linux-stable/fs
Amir Goldstein bb43c568f7 kernfs: annotate different lockdep class for of->mutex of writable files
commit 16b52bbee4 upstream.

The writable file /sys/power/resume may call vfs lookup helpers for
arbitrary paths and readonly files can be read by overlayfs from vfs
helpers when sysfs is a lower layer of overalyfs.

To avoid a lockdep warning of circular dependency between overlayfs
inode lock and kernfs of->mutex, use a different lockdep class for
writable and readonly kernfs files.

Reported-by: syzbot+9a5b0ced8b1bfb238b56@syzkaller.appspotmail.com
Fixes: 0fedefd4c4 ("kernfs: sysfs: support custom llseek method for sysfs entries")
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-17 11:23:40 +02:00
..
9p 9p: Use length of data written to the server in preference to error 2024-01-04 13:15:31 +00:00
adfs adfs: remove writepage implementation 2023-12-29 11:58:33 -08:00
affs affs: free affs_sb_info with kfree_rcu() 2024-02-25 02:10:31 -05:00
afs afs: Fix occasional rmdir-then-VNOVNODE with generic/011 2024-03-26 18:17:27 -04:00
autofs dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
bcachefs mean_and_variance: Drop always failing tests 2024-04-10 16:38:08 +02:00
befs befs: d_obtain_alias(ERR_PTR(...)) will do the right thing 2023-12-21 12:51:02 -05:00
bfs misc cleanups (the part that hadn't been picked by individual fs trees) 2024-01-11 20:23:50 -08:00
btrfs btrfs: qgroup: convert PREALLOC to PERTRANS after record_root_in_trans 2024-04-17 11:23:36 +02:00
cachefiles cachefiles: fix memory leak in cachefiles_add_cache() 2024-02-20 09:46:07 +01:00
ceph ceph: switch to use cap_delay_lock for the unlink delay list 2024-04-17 11:23:24 +02:00
coda dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
configfs
cramfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
crypto fscrypt: document that CephFS supports fscrypt now 2023-12-26 22:55:42 -06:00
debugfs debugfs: fix wait/cancellation handling during remove 2024-04-03 15:32:17 +02:00
devpts fs: Remove the now superfluous sentinel elements from ctl_table array 2023-12-28 04:57:57 -08:00
dlm dlm: fix user space lkb refcounting 2024-04-03 15:32:20 +02:00
ecryptfs fix directory locking scheme on rename 2024-01-11 20:00:22 -08:00
efivarfs efivarfs: Drop 'duplicates' bool parameter on efivar_init() 2024-02-25 09:43:39 +01:00
efs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
erofs erofs: fix lockdep false positives on initializing erofs_pseudo_mnt 2024-03-26 18:16:56 -04:00
exfat Description for this pull request: 2024-03-01 12:22:30 -08:00
exportfs fs: fix build error with CONFIG_EXPORTFS=m or not defined 2023-10-28 16:16:19 +02:00
ext2 quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
ext4 ext4: forbid commit inconsistent quota data when errors=remount-ro 2024-04-13 13:10:05 +02:00
f2fs f2fs: truncate page cache before clearing flags when aborting atomic write 2024-04-03 15:32:22 +02:00
fat fat: fix uninitialized field in nostale filehandles 2024-04-03 15:32:06 +02:00
freevxfs freevxfs: lookup: fix function params kernel-doc 2023-12-20 15:02:58 -08:00
fuse fuse: don't unhash root 2024-04-03 15:32:12 +02:00
gfs2 Revert "gfs2: Use GL_NOBLOCK flag for non-blocking lookups" 2024-02-02 17:21:44 +01:00
hfs hfs: really remove hfs_writepage 2023-12-29 11:58:34 -08:00
hfsplus fs/hfsplus: use better @opf description 2024-03-26 18:16:27 -04:00
hostfs hostfs: use d_splice_alias() calling conventions to simplify failure exits 2023-12-21 12:51:00 -05:00
hpfs
hugetlbfs fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super 2024-02-07 21:20:36 -08:00
iomap iomap: clear the per-folio dirty bits on all writeback failures 2024-03-26 18:16:26 -04:00
isofs isofs: handle CDs with bad root inode but good Joliet root directory 2024-04-13 13:10:04 +02:00
jbd2 jbd2: abort journal when detecting metadata writeback error of fs dev 2024-01-04 23:42:21 -05:00
jffs2 jffs2: mark __jffs2_dbg_superblock_counts() static 2023-12-10 17:21:43 -08:00
jfs quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
kernfs kernfs: annotate different lockdep class for of->mutex of writable files 2024-04-17 11:23:40 +02:00
lockd sysctl-6.8-rc1 2024-01-10 17:44:36 -08:00
minix minixfs kmap_local_page() switchover and related fixes - very similar to sysv series. 2024-01-11 19:54:18 -08:00
netfs netfs: Fix missing zero-length check in unbuffered write 2024-01-29 14:53:21 +01:00
nfs NFS: Read unlock folio on nfs_page_create_from_folio() error 2024-04-03 15:32:18 +02:00
nfs_common
nfsd nfsd: hold a lighter-weight client reference over CB_RECALL_ANY 2024-04-10 16:38:14 +02:00
nilfs2 nilfs2: prevent kernel bug at submit_bh_wbc() 2024-04-03 15:32:23 +02:00
nls
notify dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
ntfs sysctl-6.8-rc1 2024-01-10 17:44:36 -08:00
ntfs3 fs/ntfs3: fix build without CONFIG_NTFS3_LZX_XPRESS 2024-02-26 09:32:23 -08:00
ocfs2 quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
omfs
openpromfs
orangefs Julia Lawall reported this null pointer dereference, this should fix it. 2024-04-13 13:10:05 +02:00
overlayfs ovl: relax WARN_ON in ovl_verify_area() 2024-03-26 18:17:28 -04:00
proc fs/proc: Skip bootloader comment if no embedded kernel parameters 2024-04-17 11:23:36 +02:00
pstore pstore/zone: Add a null pointer check to the psz_kmsg_read 2024-04-13 13:10:00 +02:00
qnx4 qnx4: Use get_directory_fname() in qnx4_match() 2023-12-13 11:19:18 -08:00
qnx6
quota quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
ramfs mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER 2024-01-08 15:27:15 -08:00
reiserfs quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
romfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
smb smb3: fix Open files on server counter going negative 2024-04-17 11:23:23 +02:00
squashfs Squashfs: fix variable overflow triggered by sysbot 2023-12-10 17:21:26 -08:00
sysfs fs/sysfs/dir.c : Fix typo in comment 2023-12-07 11:35:23 +09:00
sysv sysv: don't call sb_bread() with pointers_lock held 2024-04-13 13:10:04 +02:00
tracefs eventfs: Keep all directory links at 1 2024-02-01 11:53:53 -05:00
ubifs ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path 2024-04-03 15:32:07 +02:00
udf misc cleanups (the part that hadn't been picked by individual fs trees) 2024-01-11 20:23:50 -08:00
ufs Many singleton patches against the MM code. The patch series which 2024-01-09 11:18:47 -08:00
unicode
vboxsf vboxsf: Avoid an spurious warning if load_nls_xxx() fails 2024-04-10 16:38:03 +02:00
verity Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
xfs xfs: drop experimental warning for FSDAX 2024-02-27 09:53:30 +05:30
zonefs zonefs: Improve error handling 2024-02-16 10:20:35 +09:00
Kconfig vfs-6.8.netfs 2024-01-19 09:10:23 -08:00
Kconfig.binfmt
Makefile vfs-6.8.netfs 2024-01-19 09:10:23 -08:00
aio.c aio: Fix null ptr deref in aio_complete() wakeup 2024-04-10 16:38:19 +02:00
anon_inodes.c Merge branch 'kvm-guestmemfd' into HEAD 2023-11-14 08:31:31 -05:00
attr.c fs: fix doc comment typo fs tree wide 2023-12-21 13:17:54 +01:00
backing-file.c fs: factor out backing_file_mmap() helper 2023-12-23 16:35:09 +02:00
bad_inode.c
binfmt_elf.c
binfmt_elf_fdpic.c execve updates for v6.7-rc1 2023-10-30 19:28:19 -10:00
binfmt_elf_test.c
binfmt_flat.c
binfmt_misc.c execve updates for v6.7-rc1 2023-10-30 19:28:19 -10:00
binfmt_script.c
buffer.c Many singleton patches against the MM code. The patch series which 2024-01-09 11:18:47 -08:00
char_dev.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
compat_binfmt_elf.c
coredump.c iov_iter: get rid of 'copy_mc' flag 2024-03-06 10:52:12 +01:00
d_path.c
dax.c fs : Fix warning using plain integer as NULL 2023-11-18 15:00:01 +01:00
dcache.c Revert "get rid of DCACHE_GENOCIDE" 2024-02-09 23:31:16 -05:00
direct-io.c fs : Fix warning using plain integer as NULL 2023-11-18 15:00:01 +01:00
drop_caches.c
eventfd.c eventfd: Remove usage of the deprecated ida_simple_xx() API 2023-12-12 14:24:55 +01:00
eventpoll.c fs: Remove the now superfluous sentinel elements from ctl_table array 2023-12-28 04:57:57 -08:00
exec.c exec: Fix NOMMU linux_binprm::exec in transfer_args_to_stack() 2024-04-03 15:32:39 +02:00
fcntl.c fs: Fix rw_hint validation 2024-03-26 18:16:26 -04:00
fhandle.c do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak 2024-03-26 18:16:25 -04:00
file.c file: remove __receive_fd() 2023-12-12 14:24:14 +01:00
file_table.c dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
filesystems.c
fs-writeback.c netfs: Move pinning-for-writeback from fscache to netfs 2023-12-24 15:08:49 +00:00
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
init.c
inode.c fix directory locking scheme on rename 2024-01-11 20:00:22 -08:00
internal.h dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
ioctl.c lsm: new security_file_ioctl_compat() hook 2023-12-24 15:48:03 -05:00
kernel_read_file.c
libfs.c dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
locks.c fs: Remove the now superfluous sentinel elements from ctl_table array 2023-12-28 04:57:57 -08:00
mbcache.c
mnt_idmapping.c mnt_idmapping: decouple from namespaces 2023-11-28 14:08:47 +01:00
mount.h mounts: keep list of mounts in an rbtree 2023-11-18 14:56:16 +01:00
mpage.c fs: convert block_write_full_page to block_write_full_folio 2023-12-29 11:58:35 -08:00
namei.c rcu pathwalk: prevent bogus hard errors from may_lookup() 2024-02-25 02:10:31 -05:00
namespace.c fs: relax mount_setattr() permission checks 2024-02-07 21:16:29 +01:00
nsfs.c nsfs: use d_make_root() 2023-11-25 02:49:43 -05:00
open.c vfs-6.8.rw 2024-01-08 11:11:51 -08:00
pipe.c sysctl-6.8-rc1 2024-01-10 17:44:36 -08:00
pnode.c mounts: keep list of mounts in an rbtree 2023-11-18 14:56:16 +01:00
pnode.h
posix_acl.c fs: fix doc comment typo fs tree wide 2023-12-21 13:17:54 +01:00
proc_namespace.c namespace: extract show_path() helper 2023-11-18 14:56:16 +01:00
read_write.c fsnotify: optionally pass access range in file permission hooks 2023-12-12 16:20:02 +01:00
readdir.c fsnotify: optionally pass access range in file permission hooks 2023-12-12 16:20:02 +01:00
remap_range.c remap_range: merge do_clone_file_range() into vfs_clone_file_range() 2024-02-06 17:07:21 +01:00
select.c fs/select: rework stack allocation hack for clang 2024-03-26 18:16:27 -04:00
seq_file.c
signalfd.c
splice.c fs: use splice_copy_file_range() inline helper 2023-12-12 16:20:02 +01:00
stack.c
stat.c vfs-6.8.mount 2024-01-08 10:57:34 -08:00
statfs.c
super.c fs/super.c: don't drop ->s_user_ns until we free struct super_block itself 2024-02-25 02:10:31 -05:00
sync.c
sysctls.c fs: Remove the now superfluous sentinel elements from ctl_table array 2023-12-28 04:57:57 -08:00
timerfd.c
userfaultfd.c Generic: 2024-01-17 13:03:37 -08:00
utimes.c
xattr.c