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Amir Goldstein 45338af03f fanotify: sanitize handle_type values when reporting fid 
[ Upstream commit 8631e01c2c5d1fe6705bcc0d733a0b7a17d3daac ]

Unlike file_handle, type and len of struct fanotify_fh are u8.
Traditionally, filesystem return handle_type < 0xff, but there
is no enforecement for that in vfs.

Add a sanity check in fanotify to avoid truncating handle_type
if its value is > 0xff.

Fixes: 7cdafe6cc4 ("exportfs: check for error return value from exportfs_encode_*()")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20250627104835.184495-1-amir73il@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-15 12:08:52 +02:00
..
9p
fs/9p: fix uninitialized values during inode evict
2024-11-22 15:38:37 +01:00
adfs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
affs
affs: don't write overlarge OFS data block size fields
2025-04-10 14:37:37 +02:00
afs
afs: Fix the server_list to unuse a displaced server rather than putting it
2025-03-07 16:45:38 +01:00
autofs
Merge tag 'v6.6-vfs.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-08-28 11:39:14 -07:00
befs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
bfs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
btrfs
btrfs: fix assertion when building free space tree
2025-07-17 18:35:21 +02:00
cachefiles
cachefiles: Fix the incorrect return value in __cachefiles_write()
2025-07-24 08:53:16 +02:00
ceph
ceph: fix possible integer overflow in ceph_zero_objects()
2025-07-06 11:00:08 +02:00
coda
Merge tag 'v6.6-vfs.ctime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-08-28 09:31:32 -07:00
configfs
configfs: Do not override creating attribute file failure in populate_attrs()
2025-06-27 11:08:42 +01:00
cramfs
fs: Convert to bdev_open_by_dev()
2024-08-19 06:04:25 +02:00
crypto
fs: Create a generic is_dot_dotdot() utility
2024-10-04 16:29:48 +02:00
debugfs
debugfs: fix automount d_fsdata usage
2024-01-20 11:51:37 +01:00
devpts
Merge tag 'v6.6-vfs.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-08-28 10:17:14 -07:00
dlm
dlm: make tcp still work in multi-link env
2025-06-04 14:41:57 +02:00
ecryptfs
fs: Create a generic is_dot_dotdot() utility
2024-10-04 16:29:48 +02:00
efivarfs
efivarfs: Fix error on non-existent file
2024-12-27 13:58:50 +01:00
efs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
erofs
erofs: address D-cache aliasing
2025-08-01 09:47:32 +01:00
exfat
exfat: fix the infinite loop in exfat_find_last_cluster()
2025-04-10 14:37:35 +02:00
exportfs
exportfs: remove kernel-doc warnings in exportfs
2023-08-29 17:45:22 -04:00
ext2
ext2: Verify bitmap and itable block numbers before using them
2024-08-03 08:54:15 +02:00
ext4
ext4: only dirty folios when data journaling regular files
2025-06-27 11:08:47 +01:00
f2fs
f2fs: fix to avoid use-after-free issue in f2fs_filemap_fault
2025-07-10 16:03:21 +02:00
fat
fat: fix uninitialized variable
2024-10-22 15:46:20 +02:00
freevxfs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
fscache
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
2024-12-09 10:31:45 +01:00
fuse
fuse: fix race between concurrent setattrs from multiple nodes
2025-07-06 11:00:06 +02:00
gfs2
gfs2: No more self recovery
2025-08-15 12:08:40 +02:00
hfs
hfs: make splice write available again
2025-08-15 12:08:40 +02:00
hfsplus
hfsplus: remove mutex_lock check in hfsplus_free_extents
2025-08-15 12:08:40 +02:00
hostfs
um: hostfs: avoid issues on inode number reuse by host
2025-04-10 14:37:34 +02:00
hpfs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
hugetlbfs
mm: hugetlb pages should not be reserved by shmat() if SHM_NORESERVE
2024-02-23 09:25:16 +01:00
iomap
iomap: skip unnecessary ifs_block_is_uptodate check
2025-05-02 07:51:01 +02:00
isofs
isofs: Verify inode mode when loading from disk
2025-07-24 08:53:13 +02:00
jbd2
jbd2: fix data-race and null-ptr-deref in jbd2_journal_dirty_metadata()
2025-06-27 11:08:44 +01:00
jffs2
jffs2: check jffs2_prealloc_raw_node_refs() result in few other places
2025-06-27 11:08:58 +01:00
jfs
jfs: reject on-disk inodes of an unsupported type
2025-08-01 09:47:31 +01:00
kernfs
kernfs: Relax constraint in draining guard
2025-06-19 15:28:16 +02:00
lockd
nfsd: stop setting ->pg_stats for unused stats
2024-08-19 06:04:23 +02:00
minix
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
netfs
netfs: Only call folio_start_fscache() one time for each folio
2023-09-18 12:03:46 -07:00
nfs
NFSv4/flexfiles: Fix handling of NFS level errors in I/O
2025-07-10 16:03:18 +02:00
nfs_common
…
nfsd
nfsd: Initialize ssc before laundromat_work to prevent NULL dereference
2025-06-27 11:08:44 +01:00
nilfs2
nilfs2: reject invalid file types when reading inodes
2025-08-01 09:47:30 +01:00
nls
nls: Hide new NLS_UCS2_UTILS
2023-08-31 12:07:34 -05:00
notify
fanotify: sanitize handle_type values when reporting fid
2025-08-15 12:08:52 +02:00
ntfs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
ntfs3
Revert "fs/ntfs3: Replace inode_trylock with inode_lock"
2025-08-15 12:08:40 +02:00
ocfs2
ocfs2: fix possible memory leak in ocfs2_finish_quota_recovery
2025-06-19 15:28:23 +02:00
omfs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
openpromfs
openpromfs: finish conversion to the new mount API
2024-06-12 11:11:30 +02:00
orangefs
orangefs: Do not truncate file size
2025-06-04 14:42:02 +02:00
overlayfs
ovl: Check for NULL d_inode() in ovl_dentry_upper()
2025-07-06 11:00:08 +02:00
proc
mm: fix the inaccurate memory statistics issue for users
2025-07-17 18:35:14 +02:00
pstore
pstore: Change kmsg_bytes storage size to u32
2025-06-04 14:42:11 +02:00
qnx4
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
qnx6
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
quota
quota: flush quota_release_work upon quota writeback
2024-12-09 10:33:01 +01:00
ramfs
ramfs: convert to ctime accessor functions
2023-07-24 10:30:04 +02:00
reiserfs
reiserfs: fix uninit-value in comp_keys
2024-08-19 06:04:26 +02:00
romfs
fs: Convert to bdev_open_by_dev()
2024-08-19 06:04:25 +02:00
smb
ksmbd: add free_transport ops in ksmbd connection
2025-08-01 09:47:32 +01:00
squashfs
Squashfs: check return result of sb_min_blocksize
2025-06-19 15:28:23 +02:00
sysfs
fs: sysfs: Fix reference leak in sysfs_break_active_protection()
2024-04-27 17:11:41 +02:00
sysv
sysv: don't call sb_bread() with pointers_lock held
2024-04-13 13:07:34 +02:00
tracefs
eventfs: Use list_del_rcu() for SRCU protected list variable
2024-09-12 11:11:27 +02:00
ubifs
ubifs: skip dumping tnc tree when zroot is null
2025-02-08 09:52:28 +01:00
udf
udf: Make sure i_lenExtents is uptodate on inode eviction
2025-05-22 14:12:19 +02:00
ufs
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
unicode
Revert "unicode: Don't special case ignorable code points"
2024-12-14 20:00:20 +01:00
vboxsf
vboxsf: fix building with GCC 15
2025-03-22 12:50:41 -07:00
verity
fsverity: use register_sysctl_init() to avoid kmemleak warning
2024-06-16 13:47:33 +02:00
xfs
xfs: don't over-report free space or inodes in statvfs
2025-02-27 04:10:44 -08:00
zonefs
zonefs: Improve error handling
2024-02-23 09:25:13 +01:00
aio.c
fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion
2024-04-03 15:28:44 +02:00
anon_inodes.c
fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass
2025-07-10 16:03:18 +02:00
attr.c
Merge tag 'v6.6-vfs.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-08-28 10:17:14 -07:00
bad_inode.c
fs: drop the timespec64 argument from update_time
2023-08-11 09:04:57 +02:00
binfmt_elf_fdpic.c
fs: binfmt_elf_efpic: don't use missing interpreter's properties
2024-08-29 17:33:33 +02:00
binfmt_elf_test.c
…
binfmt_elf.c
binfmt_elf: Move brk for static PIE even if ASLR disabled
2025-05-22 14:12:12 +02:00
binfmt_flat.c
binfmt_flat: Fix integer overflow bug on 32 bit systems
2025-02-17 09:40:16 +01:00
binfmt_misc.c
binfmt_misc: cleanup on filesystem umount
2024-08-29 17:33:27 +02:00
binfmt_script.c
…
buffer.c
buffer: make folio_create_empty_buffers() return a buffer_head
2025-02-08 09:52:26 +01:00
char_dev.c
vfs: Replace all non-returning strlcpy with strscpy
2023-05-15 09:42:01 +02:00
compat_binfmt_elf.c
…
coredump.c
coredump: hand a pidfd to the usermode coredump helper
2025-06-04 14:42:24 +02:00
d_path.c
fs: d_path: include internal.h
2023-05-17 09:16:59 +02:00
dax.c
fsdax: dax_unshare_iter needs to copy entire blocks
2024-11-08 16:28:19 +01:00
dcache.c
fs: better handle deep ancestor chains in is_subdir()
2024-07-25 09:50:54 +02:00
direct-io.c
Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-06-28 10:28:11 -07:00
drop_caches.c
fs: drop_caches: draining pages before dropping caches
2023-08-18 10:12:11 -07:00
eventfd.c
eventfd: prevent underflow for eventfd semaphores
2023-07-11 11:41:34 +02:00
eventpoll.c
eventpoll: don't decrement ep refcount while still holding the ep mutex
2025-07-17 18:35:07 +02:00
exec.c
exec: fix the racy usage of fs_struct->in_exec
2025-04-10 14:37:44 +02:00
fcntl.c
fs: Fix file_set_fowner LSM hook inconsistencies
2024-10-04 16:29:56 +02:00
fhandle.c
fs: Annotate struct file_handle with __counted_by() and use struct_size()
2024-08-19 06:04:28 +02:00
file_table.c
fs: fix proc_handler for sysctl_nr_open
2025-02-08 09:51:42 +01:00
file.c
fs: consistently deref the files table with rcu_dereference_raw()
2025-04-25 10:45:10 +02:00
filesystems.c
fs/filesystems: Fix potential unsigned integer underflow in fs_name()
2025-06-19 15:28:43 +02:00
fs_context.c
fs: factor out vfs_parse_monolithic_sep() helper
2023-10-12 18:53:36 +03:00
fs_parser.c
…
fs_pin.c
…
fs_struct.c
kill do_each_thread()
2023-08-21 13:46:25 -07:00
fs_types.c
…
fs-writeback.c
fs/writeback: bail out if there is no more inodes for IO and queued once
2024-06-27 13:49:00 +02:00
fsopen.c
fs: add FSCONFIG_CMD_CREATE_EXCL
2023-08-14 18:48:02 +02:00
init.c
…
inode.c
fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name
2024-12-09 10:31:41 +01:00
internal.h
Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux
2023-08-29 20:21:42 -07:00
ioctl.c
lsm: new security_file_ioctl_compat() hook
2024-01-31 16:18:54 -08:00
Kconfig
nfs: add missing selections of CONFIG_CRC32
2025-04-25 10:45:46 +02:00
Kconfig.binfmt
riscv: support the elf-fdpic binfmt loader
2023-08-23 14:17:43 -07:00
kernel_read_file.c
fs: Fix kernel-doc warnings
2023-08-19 12:12:12 +02:00
libfs.c
libfs: Use d_children list to iterate simple_offset directories
2025-02-01 18:37:54 +01:00
locks.c
filelock: Fix fcntl/close race recovery compat path
2024-07-27 11:34:10 +02:00
Makefile
fs: add CONFIG_BUFFER_HEAD
2023-08-02 09:13:09 -06:00
mbcache.c
…
mnt_idmapping.c
…
mount.h
…
mpage.c
mpage: use folios in bio end_io handler
2023-04-18 16:30:02 -07:00
namei.c
fuse: don't truncate cached, mutated symlink
2025-03-22 12:50:44 -07:00
namespace.c
clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns
2025-07-24 08:53:20 +02:00
nsfs.c
fs: convert to ctime accessor functions
2023-07-13 10:28:04 +02:00
open.c
openat2: explicitly return -E2BIG for (usize > PAGE_SIZE)
2024-11-01 01:58:32 +01:00
pipe.c
fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()
2024-04-10 16:35:57 +02:00
pnode.c
fs: allow to mount beneath top mount
2023-05-19 04:30:22 +02:00
pnode.h
fs: allow to mount beneath top mount
2023-05-19 04:30:22 +02:00
posix_acl.c
fs: convert to ctime accessor functions
2023-07-13 10:28:04 +02:00
proc_namespace.c
tty, proc, kernfs, random: Use copy_splice_read()
2023-05-24 08:42:16 -06:00
read_write.c
fs: Fix one kernel-doc comment
2023-08-15 08:32:45 +02:00
readdir.c
vfs: get rid of old '->iterate' directory operation
2023-08-06 15:08:35 +02:00
remap_range.c
fs: use UB-safe check for signed addition overflow in remap_verify_area
2023-05-24 11:03:59 +02:00
select.c
hrtimer: Use and report correct timerslack values for realtime tasks
2025-03-22 12:50:37 -07:00
seq_file.c
…
signalfd.c
…
splice.c
splice: remove duplicate noinline from pipe_clear_nowait
2025-05-02 07:50:45 +02:00
stack.c
fs: convert to ctime accessor functions
2023-07-13 10:28:04 +02:00
stat.c
fs: Pass AT_GETATTR_NOSEC flag to getattr interface function
2023-12-03 07:33:03 +01:00
statfs.c
statfs: enforce statfs[64] structure initialization
2023-05-17 15:20:17 +02:00
super.c
fs: Convert to bdev_open_by_dev()
2024-08-19 06:04:25 +02:00
sync.c
…
sysctls.c
sysctl: Refactor base paths registrations
2023-05-23 21:43:26 -07:00
timerfd.c
…
userfaultfd.c
mm/userfaultfd: fix release hang over concurrent GUP
2025-04-25 10:45:31 +02:00
utimes.c
…
xattr.c
fs/xattr.c: fix simple_xattr_list()
2025-06-27 11:08:57 +01:00