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Jan Kara c915d8f591 inotify: Avoid reporting event with invalid wd 
When inotify_freeing_mark() races with inotify_handle_inode_event() it
can happen that inotify_handle_inode_event() sees that i_mark->wd got
already reset to -1 and reports this value to userspace which can
confuse the inotify listener. Avoid the problem by validating that wd is
sensible (and pretend the mark got removed before the event got
generated otherwise).

CC: stable@vger.kernel.org
Fixes: 7e790dd5fc93 ("inotify: fix error paths in inotify_update_watch")
Message-Id: <20230424163219.9250-1-jack@suse.cz>
Reported-by: syzbot+4a06d4373fd52f0b2f9c@syzkaller.appspotmail.com
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2023-04-25 12:36:55 +02:00
..
9p
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
adfs
fs: port ->setattr() to pass mnt_idmap
2023-01-19 09:24:02 +01:00
affs
for-6.3/dio-2023-02-16
2023-02-20 14:10:36 -08:00
afs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
autofs
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
befs
…
bfs
fs: port inode_init_owner() to mnt_idmap
2023-01-19 09:24:28 +01:00
btrfs
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
cachefiles
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
ceph
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
cifs
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
coda
hardening updates for v6.3-rc1
2023-02-21 11:07:23 -08:00
configfs
fs: consolidate duplicate dt_type helpers
2023-04-03 09:23:54 +02:00
cramfs
fs/cramfs/inode.c: initialize file_ra_state
2023-03-02 21:54:23 -08:00
crypto
fscrypt: check for NULL keyring in fscrypt_put_master_key_activeref()
2023-03-18 21:08:03 -07:00
debugfs
ARM: SoC drivers for 6.3
2023-02-27 10:04:49 -08:00
devpts
devpts: simplify two-level sysctl registration for pty_kern_table
2023-03-13 12:36:34 +01:00
dlm
Driver core changes for 6.3-rc1
2023-02-24 12:58:55 -08:00
ecryptfs
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
efivarfs
A healthy mix of EFI contributions this time:
2023-02-23 14:41:48 -08:00
efs
…
erofs
Changes since last update:
2023-04-24 14:25:39 -07:00
exfat
Description for this pull request:
2023-03-01 08:42:27 -08:00
exportfs
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
ext2
fs: rename generic posix acl handlers
2023-03-06 09:57:13 +01:00
ext4
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
f2fs
fs: rename generic posix acl handlers
2023-03-06 09:57:13 +01:00
fat
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
freevxfs
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
fscache
fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()
2023-01-30 12:51:54 +00:00
fuse
fget() to fdget() conversions
2023-04-24 19:14:20 -07:00
gfs2
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
hfs
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
hfsplus
fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode()
2023-04-12 11:29:32 +02:00
hostfs
This pull request contains the following changes for UML:
2023-03-01 09:13:00 -08:00
hpfs
fs: port ->rename() to pass mnt_idmap
2023-01-19 09:24:26 +01:00
hugetlbfs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
iomap
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
isofs
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
jbd2
Bug fixes and regressions for ext4, the most serious of which is a
2023-03-12 08:55:55 -07:00
jffs2
fs: rename generic posix acl handlers
2023-03-06 09:57:13 +01:00
jfs
write_one_page series
2023-04-24 19:20:27 -07:00
kernfs
fs: consolidate duplicate dt_type helpers
2023-04-03 09:23:54 +02:00
ksmbd
ksmbd: avoid out of bounds access in decode_preauth_ctxt()
2023-04-13 14:17:32 -05:00
lockd
lockd: set file_lock start and end when decoding nlm4 testargs
2023-03-14 14:00:55 -04:00
minix
Merge branch 'work.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2023-02-24 19:01:15 -08:00
netfs
netfs: Fix netfs_extract_iter_to_sg() for ITER_UBUF/IOVEC
2023-04-12 09:26:36 -07:00
nfs
v6.4/vfs.misc
2023-04-24 13:39:58 -07:00
nfs_common
filelock: move file locking definitions to separate header file
2023-01-11 06:52:32 -05:00
nfsd
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
nilfs2
nilfs2: initialize unused bytes in segment summary blocks
2023-04-18 14:22:14 -07:00
nls
…
notify
inotify: Avoid reporting event with invalid wd
2023-04-25 12:36:55 +02:00
ntfs
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
ntfs3
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
ocfs2
legacy direct-io cleanup
2023-04-24 19:28:49 -07:00
omfs
fs: port inode_init_owner() to mnt_idmap
2023-01-19 09:24:28 +01:00
openpromfs
…
orangefs
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
overlayfs
ovl: check for ->listxattr() support
2023-03-06 09:57:13 +01:00
proc
capability: just use a 'u64' instead of a 'u32[2]' array
2023-03-01 10:01:22 -08:00
pstore
pstore updates for v6.2-rc1-fixes
2022-12-23 11:55:54 -08:00
qnx4
qnx4: credit contributors in CREDITS
2023-03-14 12:56:30 -06:00
qnx6
qnx6: credit contributor and mark filesystem orphan
2023-03-14 12:56:30 -06:00
quota
RCU pull request for v6.3
2023-02-21 10:45:51 -08:00
ramfs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
reiserfs
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
romfs
mm/nommu: factor out check for NOMMU shared mappings into is_nommu_shared_mapping()
2023-01-18 17:12:56 -08:00
smbfs_common
smb3: Replace smb2pdu 1-element arrays with flex-arrays
2023-02-20 17:25:43 -06:00
squashfs
revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
2023-02-03 17:52:25 -08:00
sysfs
…
sysv
sysv: switch to put_and_unmap_page()
2023-03-12 20:03:41 -04:00
tracefs
fs: port ->mkdir() to pass mnt_idmap
2023-01-19 09:24:26 +01:00
ubifs
This pull request contains updates for JFFS2, UBI and UBIFS
2023-03-01 09:06:51 -08:00
udf
udf: Warn if block mapping is done for in-ICB files
2023-03-06 16:38:25 +01:00
ufs
ufs: don't flush page immediately for DIRSYNC directories
2023-03-12 20:00:41 -04:00
unicode
…
vboxsf
fs: port ->rename() to pass mnt_idmap
2023-01-19 09:24:26 +01:00
verity
fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY
2023-03-15 22:50:41 -07:00
xfs
v6.4/vfs.acl
2023-04-24 13:35:23 -07:00
zonefs
zonefs: Do not propagate iomap_dio_rw() ENOTBLK error to user space
2023-03-30 20:56:02 +09:00
aio.c
Merge branch 'mm-hotfixes-stable' into mm-stable
2023-02-10 15:34:48 -08:00
anon_inodes.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
attr.c
nfs: use vfs setgid helper
2023-03-30 08:51:48 +02:00
bad_inode.c
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
binfmt_elf_fdpic.c
elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
2023-01-05 15:12:12 +00:00
binfmt_elf_test.c
…
binfmt_elf.c
Linux 6.2-rc6
2023-01-31 15:01:20 +01:00
binfmt_flat.c
…
binfmt_misc.c
binfmt_misc: fix shift-out-of-bounds in check_special_flags
2022-12-02 13:57:04 -08:00
binfmt_script.c
…
buffer.c
fs/buffer: Remove redundant assignment to err
2023-03-27 10:06:28 +02:00
char_dev.c
chardev: fix error handling in cdev_device_add()
2022-12-02 17:48:59 +01:00
compat_binfmt_elf.c
…
coredump.c
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
d_path.c
d_path.c: typo fix...
2022-08-20 11:34:33 -04:00
dax.c
fsdax: force clear dirty mark if CoW
2023-04-05 18:06:23 -07:00
dcache.c
tmpfile API change
2022-10-10 19:45:17 -07:00
direct-io.c
__blockdev_direct_IO(): get rid of submit_io callback
2023-03-05 20:27:41 -05:00
drop_caches.c
…
eventfd.c
eventfd: use wait_event_interruptible_locked_irq() helper
2023-04-06 10:01:50 +02:00
eventpoll.c
eventpoll: align comment with nested epoll limitation
2023-03-13 10:33:28 +01:00
exec.c
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
fcntl.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
fhandle.c
do_sys_name_to_handle(): constify path
2022-09-01 17:36:39 -04:00
file_table.c
filelock: move file locking definitions to separate header file
2023-01-11 06:52:32 -05:00
file.c
fs: prevent out-of-bounds array speculation when closing a file descriptor
2023-03-09 22:46:21 -05:00
filesystems.c
…
fs_context.c
…
fs_parser.c
ext4: journal_path mount options should follow links
2022-12-01 10:46:54 -05:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs
2023-04-16 10:41:26 -07:00
fsopen.c
…
init.c
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
inode.c
Update relatime comments to include equality
2023-03-27 13:51:32 +02:00
internal.h
nfs: use vfs setgid helper
2023-03-30 08:51:48 +02:00
ioctl.c
fs: port inode_owner_or_capable() to mnt_idmap
2023-01-19 09:24:29 +01:00
Kconfig
fs: build the legacy direct I/O code conditionally
2023-01-26 10:30:56 -07:00
Kconfig.binfmt
Xtensa updates for v6.1
2022-10-10 14:21:11 -07:00
kernel_read_file.c
…
libfs.c
fs: consolidate duplicate dt_type helpers
2023-04-03 09:23:54 +02:00
locks.c
filelocks: use mount idmapping for setlease permission check
2023-03-09 22:36:12 +01:00
Makefile
for-6.3/dio-2023-02-16
2023-02-20 14:10:36 -08:00
mbcache.c
ext4: fix deadlock due to mbcache entry corruption
2022-12-08 21:49:25 -05:00
mnt_idmapping.c
fs: move mnt_idmap
2023-01-19 09:24:30 +01:00
mount.h
…
mpage.c
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
namei.c
fs: Fix description of vfs_tmpfile()
2023-03-12 20:03:48 -04:00
namespace.c
fget() to fdget() conversions
2023-04-24 19:14:20 -07:00
no-block.c
…
nsfs.c
kill the last remaining user of proc_ns_fget()
2023-04-20 22:55:35 -04:00
open.c
open: return EINVAL for O_DIRECTORY | O_CREAT
2023-03-22 11:06:55 +01:00
pipe.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
pnode.c
pnode: pass mountpoint directly
2023-04-06 14:53:38 +02:00
pnode.h
…
posix_acl.c
acl: don't depend on IOP_XATTR
2023-03-06 09:59:20 +01:00
proc_namespace.c
…
read_write.c
iov_iter: add iter_iov_addr() and iter_iov_len() helpers
2023-03-30 08:12:29 -06:00
readdir.c
Change calling conventions for filldir_t
2022-08-17 17:25:04 -04:00
remap_range.c
fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap
2023-01-19 09:24:29 +01:00
select.c
…
seq_file.c
use less confusing names for iov_iter direction initializers
2022-11-25 13:01:55 -05:00
signalfd.c
…
splice.c
splice: report related fsnotify events
2023-04-04 15:57:24 +02:00
stack.c
…
stat.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
statfs.c
…
super.c
fscrypt: destroy keyring after security_sb_delete()
2023-03-14 10:30:30 -07:00
sync.c
…
sysctls.c
…
timerfd.c
…
userfaultfd.c
Revert "userfaultfd: don't fail on unrecognized features"
2023-04-16 10:41:26 -07:00
utimes.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
xattr.c
acl: don't depend on IOP_XATTR
2023-03-06 09:59:20 +01:00