[lvc-project] [PATCH] ocfs2: fix memory leak in ocfs2_merge_rec_left()

[Dmitry Antipov]

In 'ocfs2_merge_rec_left()', do not reset 'left_path' to NULL after
move, thus allowing 'ocfs2_free_path()' to free it before return.

Reported-by: syzbot+cfc7cab3bb6eaa7c4de2 at syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=cfc7cab3bb6eaa7c4de2
Fixes: 677b975282e4 ("ocfs2: Add support for cross extent block")
Signed-off-by: Dmitry Antipov <dmantipov at yandex.ru>
---
 fs/ocfs2/alloc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index b267ec580da9..0ab9b06643f4 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -3654,7 +3654,6 @@ static int ocfs2_merge_rec_left(struct ocfs2_path *right_path,
 			 * So we use the new rightmost path.
 			 */
 			ocfs2_mv_path(right_path, left_path);
-			left_path = NULL;
 		} else
 			ocfs2_complete_edge_insert(handle, left_path,
 						   right_path, subtree_index);
-- 
2.52.0