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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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: 677b975282e4 ("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>

authored by

Dmitry Antipov and committed by
Andrew Morton 2214ec4b 7efb45f9

-1
-1
fs/ocfs2/alloc.c
··· 3655 3655 * So we use the new rightmost path. 3656 3656 */ 3657 3657 ocfs2_mv_path(right_path, left_path); 3658 - left_path = NULL; 3659 3658 } else 3660 3659 ocfs2_complete_edge_insert(handle, left_path, 3661 3660 right_path, subtree_index);