Li Nan 568e776127 efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare ... [ Upstream commit a6358f8cf64850f3f27857b8ed8c1b08cfc4685c ] Observed on kernel 6.6 (present on master as well): BUG: KASAN: slab-out-of-bounds in memcmp+0x98/0xd0 Call trace: kasan_check_range+0xe8/0x190 __asan_loadN+0x1c/0x28 memcmp+0x98/0xd0 efivarfs_d_compare+0x68/0xd8 __d_lookup_rcu_op_compare+0x178/0x218 __d_lookup_rcu+0x1f8/0x228 d_alloc_parallel+0x150/0x648 lookup_open.isra.0+0x5f0/0x8d0 open_last_lookups+0x264/0x828 path_openat+0x130/0x3f8 do_filp_open+0x114/0x248 do_sys_openat2+0x340/0x3c0 __arm64_sys_openat+0x120/0x1a0 If dentry->d_name.len < EFI_VARIABLE_GUID_LEN , 'guid' can become negative, leadings to oob. The issue can be triggered by parallel lookups using invalid filename: T1 T2 lookup_open ->lookup simple_lookup d_add // invalid dentry is added to hash list lookup_open d_alloc_parallel __d_lookup_rcu __d_lookup_rcu_op_compare hlist_bl_for_each_entry_rcu // invalid dentry can be retrieved ->d_compare efivarfs_d_compare // oob Fix it by checking 'guid' before cmp. Fixes: da27a24383 ("efivarfs: guid part of filenames are case-insensitive") Signed-off-by: Li Nan <linan122@huawei.com> Signed-off-by: Wu Guanghao <wuguanghao3@huawei.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-09-04 14:28:46 +02:00
..
9p	9p: add missing locking around taking dentry fid list	2024-10-17 15:11:47 +02:00
adfs
affs	affs: don't write overlarge OFS data block size fields	2025-04-10 14:32:03 +02:00
afs	afs: Fix the server_list to unuse a displaced server rather than putting it	2025-03-13 12:50:56 +01:00
autofs
befs
bfs
btrfs	btrfs: populate otime when logging an inode item	2025-08-28 16:24:32 +02:00
cachefiles	cachefiles: fix memory leak in cachefiles_add_cache()	2024-03-06 14:38:50 +00:00
ceph	ceph: fix possible integer overflow in ceph_zero_objects()	2025-07-10 15:57:34 +02:00
cifs	smb: client: fix use-after-free in crypt_message when using async crypto	2025-08-28 16:24:31 +02:00
coda
configfs	configfs: Do not override creating attribute file failure in populate_attrs()	2025-06-27 11:05:22 +01:00
cramfs
crypto
debugfs	debugfs: fix automount d_fsdata usage	2024-01-25 14:52:27 -08:00
devpts
dlm	dlm: make tcp still work in multi-link env	2025-06-04 14:37:56 +02:00
ecryptfs	ecryptfs: Fix buffer size for tag 66 packet	2024-06-16 13:39:16 +02:00
efivarfs	efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare	2025-09-04 14:28:46 +02:00
efs
erofs	erofs: fix incorrect symlink detection in fast symlink	2025-01-09 13:28:30 +01:00
exfat	exfat: fix double free in delayed_free	2025-06-27 11:05:28 +01:00
exportfs	exportfs: use pr_debug for unreachable debug statements	2024-04-10 16:19:21 +02:00
ext2	ext2: Handle fiemap on empty files to prevent EINVAL	2025-08-28 16:24:17 +02:00
ext4	ext4: fix hole length calculation overflow in non-extent inodes	2025-08-28 16:24:28 +02:00
f2fs	f2fs: fix to avoid out-of-boundary access in dnode page	2025-08-28 16:24:36 +02:00
fat	fat: fix uninitialized variable	2024-10-22 15:40:40 +02:00
freevxfs
fscache
fuse	virtiofs: add filesystem context source name check	2025-05-02 07:44:14 +02:00
gfs2	gfs2: move msleep to sleepable context	2025-06-27 11:05:23 +01:00
hfs	hfs: fix not erasing deleted b-tree node issue	2025-08-28 16:24:16 +02:00
hfsplus	hfsplus: don't use BUG_ON() in hfsplus_create_attributes_file()	2025-08-28 16:24:16 +02:00
hostfs
hpfs
hugetlbfs	mm: update memfd seal write check to include F_SEAL_WRITE	2025-08-28 16:24:30 +02:00
iomap	iomap: update ki_pos a little later in iomap_dio_complete	2023-12-08 08:48:05 +01:00
isofs	isofs: Verify inode mode when loading from disk	2025-08-28 16:23:59 +02:00
jbd2	jbd2: prevent softlockup in jbd2_log_do_checkpoint()	2025-08-28 16:24:29 +02:00
jffs2	jffs2: check jffs2_prealloc_raw_node_refs() result in few other places	2025-06-27 11:05:34 +01:00
jfs	jfs: upper bound check of tree index in dbAllocAG	2025-08-28 16:24:23 +02:00
kernfs	fs/kernfs/dir: obey S_ISGID	2024-02-23 08:54:51 +01:00
ksmbd	smb: server: Fix extension string in ksmbd_extract_shortname()	2025-08-28 16:24:31 +02:00
lockd	nfsd: stop setting ->pg_stats for unused stats	2024-09-04 13:23:30 +02:00
minix
netfs
nfs	NFS: Fix a race when updating an existing write	2025-09-04 14:28:44 +02:00
nfs_common
nfsd	NFSD: detect mismatch of file handle and delegation stateid in OPEN op	2025-08-28 16:24:15 +02:00
nilfs2	nilfs2: reject invalid file types when reading inodes	2025-08-28 16:24:05 +02:00
nls
notify	fsnotify: fix sending inotify event with unexpected filename	2024-12-14 19:51:13 +01:00
ntfs
ntfs3	fs/ntfs3: correctly create symlink for relative path	2025-08-28 16:24:17 +02:00
ocfs2	ocfs2: fix possible memory leak in ocfs2_finish_quota_recovery	2025-06-27 11:05:14 +01:00
omfs
openpromfs	openpromfs: finish conversion to the new mount API	2024-06-16 13:39:16 +02:00
orangefs	fs/orangefs: use snprintf() instead of sprintf()	2025-08-28 16:24:23 +02:00
overlayfs	ovl: Check for NULL d_inode() in ovl_dentry_upper()	2025-07-10 15:57:34 +02:00
proc	fs/proc: do_task_stat: use __for_each_thread()	2025-07-17 18:30:47 +02:00
pstore	pstore/blk: trivial typo fixes	2025-03-13 12:49:51 +01:00
qnx4
qnx6
quota	quota: flush quota_release_work upon quota writeback	2024-12-14 19:51:22 +01:00
ramfs
reiserfs
romfs
smbfs_common
squashfs	squashfs: fix memory leak in squashfs_fill_super	2025-08-28 16:24:34 +02:00
sysfs	fs: sysfs: Fix reference leak in sysfs_break_active_protection()	2024-04-27 17:05:28 +02:00
sysv	sysv: don't call sb_bread() with pointers_lock held	2024-04-13 13:01:44 +02:00
tracefs
ubifs	ubifs: skip dumping tnc tree when zroot is null	2025-03-13 12:50:11 +01:00
udf	udf: Fix directory iteration for longer tail extents	2025-09-04 14:28:44 +02:00
ufs
unicode	Revert "unicode: Don't special case ignorable code points"	2024-12-14 19:51:44 +01:00
vboxsf	vboxsf: fix building with GCC 15	2025-04-10 14:31:50 +02:00
verity
xfs	xfs: allow inode inactivation during a ro mount log recovery	2025-06-27 11:05:22 +01:00
zonefs	zonefs: Improve error handling	2024-03-01 13:21:43 +01:00
aio.c	fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion	2024-04-10 16:18:46 +02:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c	fs: binfmt_elf_efpic: don't use missing interpreter's properties	2024-09-04 13:23:24 +02:00
binfmt_elf.c
binfmt_flat.c	binfmt_flat: Fix integer overflow bug on 32 bit systems	2025-03-13 12:50:24 +01:00
binfmt_misc.c	binfmt_misc: cleanup on filesystem umount	2024-09-04 13:23:22 +02:00
binfmt_script.c
buffer.c	fs/buffer: fix use-after-free when call bh_read() helper	2025-08-28 16:24:34 +02:00
char_dev.c
compat_binfmt_elf.c
coredump.c	coredump: hand a pidfd to the usermode coredump helper	2025-06-04 14:38:07 +02:00
d_path.c
dax.c
dcache.c	fs: better handle deep ancestor chains in is_subdir()	2024-07-27 10:46:13 +02:00
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c	eventpoll: Fix semi-unbounded recursion	2025-08-28 16:24:15 +02:00
exec.c	exec: don't WARN for racy path_noexec check	2024-11-01 01:52:35 +01:00
fcntl.c	fs: Fix file_set_fowner LSM hook inconsistencies	2024-10-17 15:11:15 +02:00
fhandle.c	do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak	2024-03-26 18:21:14 -04:00
file_table.c	fs: fix proc_handler for sysctl_nr_open	2025-03-13 12:49:50 +01:00
file.c	alloc_fdtable(): change calling conventions.	2025-08-28 16:24:39 +02:00
filesystems.c	fs/filesystems: Fix potential unsigned integer underflow in fs_name()	2025-06-27 11:05:20 +01:00
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c
fsopen.c
init.c
inode.c	fs: move inode sysctls to its own file	2025-03-13 12:49:50 +01:00
internal.h
ioctl.c	lsm: new security_file_ioctl_compat() hook	2024-02-23 08:54:25 +01:00
Kconfig	nfs: add missing selections of CONFIG_CRC32	2025-05-02 07:44:12 +02:00
Kconfig.binfmt
kernel_read_file.c
libfs.c	better lockdep annotations for simple_recursive_removal()	2025-08-28 16:24:16 +02:00
locks.c	filelock: Fix fcntl/close race recovery compat path	2024-07-27 10:46:17 +02:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c	fuse: don't truncate cached, mutated symlink	2025-04-10 14:31:51 +02:00
namespace.c	use uniform permission checks for all mount propagation changes	2025-08-28 16:24:34 +02:00
no-block.c
nsfs.c
open.c	openat2: explicitly return -E2BIG for (usize > PAGE_SIZE)	2024-11-01 01:52:37 +01:00
pipe.c	fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()	2024-04-10 16:19:42 +02:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
remap_range.c
select.c	select: Fix unbalanced user_access_end()	2025-03-13 12:49:51 +01:00
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c	fs: explicitly unregister per-superblock BDIs	2024-10-17 15:10:43 +02:00
sync.c
timerfd.c
userfaultfd.c	Fix userfaultfd_api to return EINVAL as expected	2024-07-18 13:07:42 +02:00
utimes.c
xattr.c