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| author | Liu Bo <bo.liu@linux.alibaba.com> | 2018-04-03 01:59:47 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 07:49:08 +0200 |
| commit | b487d1cd2c6ed214323fa5507da43a42fdc06461 (patch) | |
| tree | 9e56eb8ca9b4eae2079a8a8ccdccdeaa0a0507ca /scripts/decode_stacktrace.sh | |
| parent | 0c3968cc74349e58f12ac6b634fa353344ff8aa3 (diff) | |
Btrfs: fix NULL pointer dereference in log_dir_items
[ Upstream commit 80c0b4210a963e31529e15bf90519708ec947596 ]
0, 1 and <0 can be returned by btrfs_next_leaf(), and when <0 is
returned, path->nodes[0] could be NULL, log_dir_items lacks such a
check for <0 and we may run into a null pointer dereference panic.
Fixes: e02119d5a7b4 ("Btrfs: Add a write ahead tree log to optimize synchronous operations")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/decode_stacktrace.sh')
0 files changed, 0 insertions, 0 deletions