diff options
| author | Lukas Czerner <lczerner@redhat.com> | 2015-10-17 22:57:06 -0400 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-12-13 17:48:47 +0000 |
| commit | 13ea5f86d55974aa24931d3f9acf56e822b31dc6 (patch) | |
| tree | 1ca05a784fbfa28fb031e9cba685a4618918dc27 /include/linux | |
| parent | c40009c43c849713cad7a850af0e522e3132bc5d (diff) | |
ext4: fix potential use after free in __ext4_journal_stop
commit 6934da9238da947628be83635e365df41064b09b upstream.
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>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions