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

[Heming Zhao]

On Fri, Dec 05, 2025 at 09:51:59AM +0300, Dmitry Antipov wrote:
> 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>

LGTM.
Reviewed-by: Heming Zhao <heming.zhao at suse.com>
> ---
>  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
> 
>