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| author | Jan Kara <jack@suse.cz> | 2023-03-01 17:10:04 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-03-08 05:45:38 +0300 |
| commit | 3c92792da8506a295afb6d032b4476e46f979725 (patch) | |
| tree | 92613efa0c13d22c51e0f24709db7e9409f8e0e4 /fs/ubifs/ubifs-media.h | |
| parent | 7fc1f5c28ae4c615ccc5346f39a7bf4c4e0900ac (diff) | |
| download | linux-3c92792da8506a295afb6d032b4476e46f979725.tar.xz | |
ext4: Fix deadlock during directory rename
As lockdep properly warns, we should not be locking i_rwsem while having
transactions started as the proper lock ordering used by all directory
handling operations is i_rwsem -> transaction start. Fix the lock
ordering by moving the locking of the directory earlier in
ext4_rename().
Reported-by: syzbot+9d16c39efb5fade84574@syzkaller.appspotmail.com
Fixes: 0813299c586b ("ext4: Fix possible corruption when moving a directory")
Link: https://syzkaller.appspot.com/bug?extid=9d16c39efb5fade84574
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230301141004.15087-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ubifs/ubifs-media.h')
0 files changed, 0 insertions, 0 deletions