Unverified Commit ca57ed16 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14255 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/IJI5R5VDJVU7ZV5MW2FPPA5EGFOTJBYN/ 
 
https://gitee.com/src-openeuler/kernel/issues/I95ATJ 
 
Link:https://gitee.com/openeuler/kernel/pulls/14255

 

Reviewed-by: default avatarYuan Can <yuancan@huawei.com>
Signed-off-by: default avatarYuan Can <yuancan@huawei.com>
parents 02951cea 4892e35e

kernel/cgroup/cgroup.c

+2 −2
Original line number Diff line number Diff line
@@ -5124,7 +5124,7 @@ 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);
@@ -5132,7 +5132,7 @@ 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++;