Unverified Commit 27d5cc06 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14457 cgroup: Fix potential overflow issue when checking max_depth 

Merge Pull Request from: @ci-robot 
 
PR sync from: Chen Ridong <chenridong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/3YBJNMCOU5EKBAO5MSPEZBPCXB6UD4B7/ 
 
https://gitee.com/openeuler/kernel/issues/IBF69F 
 
Link:https://gitee.com/openeuler/kernel/pulls/14457

 

Reviewed-by: default avatarLi Nan <linan122@huawei.com>
Signed-off-by: default avatarLi Nan <linan122@huawei.com>
parents 6883c2cf e9f60ba0

kernel/cgroup/cgroup.c

+2 −2
Original line number Diff line number Diff line
@@ -5623,7 +5623,7 @@ static bool cgroup_check_hierarchy_limits(struct cgroup *parent) 
{

	struct cgroup *cgroup;

	int ret = false;

	int level = 1;

	int level = 0;



	lockdep_assert_held(&cgroup_mutex);
@@ -5631,7 +5631,7 @@ static bool cgroup_check_hierarchy_limits(struct cgroup *parent) 
		if (cgroup->nr_descendants >= cgroup->max_descendants)

			goto fail;



		if (level > cgroup->max_depth)

		if (level >= cgroup->max_depth)

			goto fail;



		level++;