Unverified Commit 366add9d authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!13173 sched: smart_grid: Prevent double-free in sched_grid_qos_free 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yipeng Zou <zouyipeng@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/YFOFRR2QVMETC4WLWEYKWL7HH7DHFZNO/ 
 
https://gitee.com/openeuler/kernel/issues/IB3N2A 
 
Link:https://gitee.com/openeuler/kernel/pulls/13173

 

Reviewed-by: default avatarZhang Jianhua <chris.zjh@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents f037cc41 39ed1a70

kernel/fork.c

+4 −0
Original line number Diff line number Diff line
@@ -953,6 +953,10 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node) 
	tsk->prefer_cpus = NULL;

#endif



#ifdef CONFIG_QOS_SCHED_SMART_GRID

	tsk->grid_qos = NULL;

#endif



#ifdef CONFIG_SCHED_TASK_RELATIONSHIP

	tsk->rship = NULL;

#endif

kernel/sched/grid/qos.c

+3 −0
Original line number Diff line number Diff line
@@ -70,6 +70,9 @@ int sched_grid_qos_fork(struct task_struct *p, struct task_struct *orig) 


void sched_grid_qos_free(struct task_struct *p)

{

	if (!p->grid_qos)

		return;



	kfree(p->grid_qos);

	p->grid_qos = NULL;

}