diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2014-03-30 10:20:01 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-30 17:02:06 -0700 |
| commit | 00a1a053ebe5febcfc2ec498bd894f035ad2aa06 (patch) | |
| tree | 2a6206f1b3d195168cc1d835b459ea99c2db7811 /kernel/audit.c | |
| parent | 981e893ed537cbaa08f8089d480db4165e6d71c0 (diff) | |
ext4: atomically set inode->i_flags in ext4_set_inode_flags()
Use cmpxchg() to atomically set i_flags instead of clearing out the
S_IMMUTABLE, S_APPEND, etc. flags and then setting them from the
EXT4_IMMUTABLE_FL, EXT4_APPEND_FL flags, since this opens up a race
where an immutable file has the immutable flag cleared for a brief
window of time.
Reported-by: John Sullivan <jsrhbz@kanargh.force9.co.uk>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/audit.c')
0 files changed, 0 insertions, 0 deletions