5.15-stable review patch. If anyone has any objections, please let me know.
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From: Murad Masimov m.masimov@mt-integration.ru
[ Upstream commit cdc3ed3035d0fe934aa1d9b78ce256752fd3bb7d ]
If ocfs2_finish_quota_recovery() exits due to an error before passing all rc_list elements to ocfs2_recover_local_quota_file() then it can lead to a memory leak as rc_list may still contain elements that have to be freed.
Release all memory allocated by ocfs2_add_recovery_chunk() using ocfs2_free_quota_recovery() instead of kfree().
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Link: https://lkml.kernel.org/r/20250402065628.706359-2-m.masimov@mt-integration.r... Fixes: 2205363dce74 ("ocfs2: Implement quota recovery") Signed-off-by: Murad Masimov m.masimov@mt-integration.ru Reviewed-by: Jan Kara jack@suse.cz Reviewed-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 --- fs/ocfs2/quota_local.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index 1baa68c01c671..e199c54aeb0bc 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -671,7 +671,7 @@ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb, break; } out: - kfree(rec); + ocfs2_free_quota_recovery(rec); return status; }