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| author | Dmitry Antipov <dmantipov@yandex.ru> | 2025-12-05 09:51:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-18 14:00:15 +0100 |
| commit | 115e0387d42f44b5f0b96e4f2ac2a214643eb98e (patch) | |
| tree | 3e302c988b9018fa2c7ef4ce1d64e98c7953b059 | |
| parent | b0391a8a07ef5d88b14071badc306708a6d6e788 (diff) | |
ocfs2: fix memory leak in ocfs2_merge_rec_left()
[ Upstream commit 2214ec4bf89d0fd27717322d3983a2f3b469c7f3 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/ocfs2/alloc.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 821cb7874685..b23eb63dc838 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); |