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| author |   Lukas Czerner <lczerner@redhat.com> | 2015-10-17 22:57:06 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2015-10-17 22:57:06 -0400 |
| commit | 6934da9238da947628be83635e365df41064b09b (patch) | |
| tree | a7d5770b2fbd3961c40b6bb2da86873dcfab19c0 /net/unix/af_unix.c | |
| parent | jbd2: fix checkpoint list cleanup (diff) | |
| download | wireguard-linux-6934da9238da947628be83635e365df41064b09b.tar.xz wireguard-linux-6934da9238da947628be83635e365df41064b09b.zip | |
ext4: fix potential use after free in __ext4_journal_stop
There is a use-after-free possibility in __ext4_journal_stop() in the
case that we free the handle in the first jbd2_journal_stop() because
we're referencing handle->h_err afterwards. This was introduced in
9705acd63b125dee8b15c705216d7186daea4625 and it is wrong. Fix it by
storing the handle->h_err value beforehand and avoid referencing
potentially freed handle.
Fixes: 9705acd63b125dee8b15c705216d7186daea4625
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Cc: stable@vger.kernel.org
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions