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ocfs2: fix memory leak in ocfs2_merge_rec_left() 

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

Link: https://lkml.kernel.org/r/20251205065159.392749-1-dmantipov@yandex.ru
Fixes: 677b975282 ("ocfs2: Add support for cross extent block")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Reported-by: syzbot+cfc7cab3bb6eaa7c4de2@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=cfc7cab3bb6eaa7c4de2
Reviewed-by: Heming Zhao <heming.zhao@suse.com>
Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
pull/1354/merge
Dmitry Antipov 2025-12-05 09:51:59 +03:00 committed by Andrew Morton
parent 7efb45f968
commit 2214ec4bf8
1 changed files with 0 additions and 1 deletions
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fs/ocfs2/alloc.c
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@ -3655,7 +3655,6 @@ static int ocfs2_merge_rec_left(struct ocfs2_path *right_path,
* So we use the new rightmost path. * So we use the new rightmost path.
*/ */
ocfs2_mv_path(right_path, left_path); ocfs2_mv_path(right_path, left_path);
left_path = NULL;
} else } else
ocfs2_complete_edge_insert(handle, left_path, ocfs2_complete_edge_insert(handle, left_path,
right_path, subtree_index); right_path, subtree_index);