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linux/fs/ext4
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Jan Kara 492888df0c ext4: fix data races when using cached status extents 
When using cached extent stored in extent status tree in tree->cache_es
another process holding ei->i_es_lock for reading can be racing with us
setting new value of tree->cache_es. If the compiler would decide to
refetch tree->cache_es at an unfortunate moment, it could result in a
bogus in_range() check. Fix the possible race by using READ_ONCE() when
using tree->cache_es only under ei->i_es_lock for reading.

Cc: stable@kernel.org
Reported-by: syzbot+4a03518df1e31b537066@syzkaller.appspotmail.com
Link: https://lore.kernel.org/all/000000000000d3b33905fa0fd4a6@google.com
Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230504125524.10802-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2023-05-13 18:05:04 -04:00
..
.kunitconfig
ext4: add .kunitconfig fragment to enable ext4-specific tests
2021-02-11 23:16:30 -05:00
acl.c
fs: port acl to mnt_idmap
2023-01-19 09:24:28 +01:00
acl.h
fs: port ->set_acl() to pass mnt_idmap
2023-01-19 09:24:27 +01:00
balloc.c
ext4: allow ext4_get_group_info() to fail
2023-05-13 18:02:46 -04:00
bitmap.c
ext4: remove useless conditional branch code
2023-04-19 23:39:08 -04:00
block_validity.c
ext4: add ext4_sb_block_valid() refactored out of ext4_inode_block_valid()
2022-02-25 21:34:56 -05:00
crypto.c
ext4: refactor and move ext4_ioctl_get_encryption_pwsalt()
2022-05-21 22:24:24 -04:00
dir.c
ext4: fix spelling errors in comments
2022-05-11 15:19:06 -04:00
ext4_extents.h
ext4: fix sparse warnings
2021-08-30 23:36:50 -04:00
ext4_jbd2.c
ext4: split ext4_journal_start trace for debug
2022-12-01 10:46:54 -05:00
ext4_jbd2.h
ext4: split ext4_journal_start trace for debug
2022-12-01 10:46:54 -05:00
ext4.h
ext4: avoid deadlock in fs reclaim with page writeback
2023-05-13 18:05:04 -04:00
extents_status.c
ext4: fix data races when using cached status extents
2023-05-13 18:05:04 -04:00
extents_status.h
…
extents.c
ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline
2023-04-28 12:56:35 -04:00
fast_commit.c
ext4: use ext4_fc_tl_mem in fast-commit replay path
2023-02-09 10:43:23 -05:00
fast_commit.h
ext4: add missing validation of fast-commit record lengths
2022-12-08 21:49:24 -05:00
file.c
fs: add FMODE_DIO_PARALLEL_WRITE flag
2023-04-03 07:14:20 -06:00
fsmap.c
ext4: fix another off-by-one fsmap error on 1k block filesystems
2023-03-07 20:20:48 -05:00
fsmap.h
ext4: fsmap: fix the block/inode bitmap comment
2021-06-24 09:48:29 -04:00
fsync.c
ext4: Drop special handling of journalled data from ext4_sync_file()
2023-04-14 19:56:53 -04:00
hash.c
unicode: clean up the Kconfig symbol confusion
2022-01-20 19:57:24 -05:00
ialloc.c
ext4: allow ext4_get_group_info() to fail
2023-05-13 18:02:46 -04:00
indirect.c
ext4: fix error code return to user-space in ext4_get_branch()
2022-12-08 21:49:24 -05:00
inline.c
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
2023-04-27 19:42:02 -07:00
inode-test.c
fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature
2020-12-02 16:07:25 -07:00
inode.c
ext4: avoid deadlock in fs reclaim with page writeback
2023-05-13 18:05:04 -04:00
ioctl.c
Bug fixes and regressions for ext4, the most serious of which is a
2023-03-12 08:55:55 -07:00
Kconfig
ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it
2021-02-11 23:12:59 -05:00
Makefile
ext4: move ext4 crypto code to its own file crypto.c
2022-05-21 22:24:24 -04:00
mballoc.c
ext4: remove a BUG_ON in ext4_mb_release_group_pa()
2023-05-13 18:05:04 -04:00
mballoc.h
ext4: Remove the logic to trim inode PAs
2023-04-06 01:13:13 -04:00
migrate.c
ext4: avoid deadlock in fs reclaim with page writeback
2023-05-13 18:05:04 -04:00
mmp.c
ext4: fix lockdep warning when enabling MMP
2023-05-07 21:11:18 -04:00
move_extent.c
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
2023-04-27 19:42:02 -07:00
namei.c
ext4: fix possible double unlock when moving a directory
2023-03-17 21:53:52 -04:00
orphan.c
ext4: remove trailing newline from ext4_msg() message
2022-12-08 21:49:23 -05:00
page-io.c
ext4: remove unneeded check of nr_to_submit
2023-04-19 23:38:33 -04:00
readpage.c
ext4: Use a folio iterator in __read_end_io()
2023-04-06 13:39:52 -04:00
resize.c
ext4: remove unused group parameter in ext4_block_bitmap_csum_set
2023-03-23 23:00:08 -04:00
super.c
ext4: allow ext4_get_group_info() to fail
2023-05-13 18:02:46 -04:00
symlink.c
fs: port ->getattr() to pass mnt_idmap
2023-01-19 09:24:25 +01:00
sysfs.c
ext4: Remove the logic to trim inode PAs
2023-04-06 01:13:13 -04:00
truncate.h
ext4: Convert to use mapping->invalidate_lock
2021-07-13 14:29:00 +02:00
verity.c
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
2023-04-27 19:42:02 -07:00
xattr_hurd.c
fs: port xattr to mnt_idmap
2023-01-19 09:24:28 +01:00
xattr_security.c
fs: port xattr to mnt_idmap
2023-01-19 09:24:28 +01:00
xattr_trusted.c
fs: port xattr to mnt_idmap
2023-01-19 09:24:28 +01:00
xattr_user.c
fs: port xattr to mnt_idmap
2023-01-19 09:24:28 +01:00
xattr.c
ext4: fix invalid free tracking in ext4_xattr_move_to_block()
2023-05-13 18:05:04 -04:00
xattr.h
ext4: remove EA inode entry from mbcache on inode eviction
2022-08-02 23:56:25 -04:00