Unverified Commit 23b32a3b authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!13172 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/DCHSZJZACJMA6GLFCAK25MAA6GOW5CML/ 
 
https://gitee.com/openeuler/kernel/issues/IB3N2A 
 
Link:https://gitee.com/openeuler/kernel/pulls/13172

 

Reviewed-by: default avatarZhang Jianhua <chris.zjh@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 0ba9236d f1174976

kernel/fork.c

+4 −0
Original line number Diff line number Diff line
@@ -1192,6 +1192,10 @@ 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



	setup_thread_stack(tsk, orig);

	clear_user_return_notifier(tsk);

	clear_tsk_need_resched(tsk);

kernel/sched/grid/qos.c

+3 −0
Original line number Diff line number Diff line
@@ -71,6 +71,9 @@ 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;

}