diff options
| author | Hou Tao <houtao1@huawei.com> | 2018-10-06 17:09:35 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-21 09:27:30 +0100 |
| commit | 85b89ccf86cececb3e562b071d078a3cf50a54cc (patch) | |
| tree | bcde4eb2bcd481b8bee03f08e2c12315032a87ae /lib/debug_locks.c | |
| parent | dff53cf71a7300d2229f8ccb82834156f00a4ea2 (diff) | |
jffs2: free jffs2_sb_info through jffs2_kill_sb()
commit 92e2921f7eee63450a5f953f4b15dc6210219430 upstream.
When an invalid mount option is passed to jffs2, jffs2_parse_options()
will fail and jffs2_sb_info will be freed, but then jffs2_sb_info will
be used (use-after-free) and freeed (double-free) in jffs2_kill_sb().
Fix it by removing the buggy invocation of kfree() when getting invalid
mount options.
Fixes: 92abc475d8de ("jffs2: implement mount option parsing and compression overriding")
Cc: stable@kernel.org
Signed-off-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/debug_locks.c')
0 files changed, 0 insertions, 0 deletions