Unverified Commit 44887eac authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!15733 tracing: Fix use-after-free in print_graph_function_flags during tracer switching 

Merge Pull Request from: @ci-robot 
 
PR sync from: Tengda Wu <wutengda2@huawei.com>
https://mailweb.openeuler.org/archives/list/kernel@openeuler.org/message/RMBQOH62DDP2KOJF5CIMCWSVANZG4JXJ/ 
 
https://gitee.com/openeuler/kernel/issues/IBWWU7 
 
Link:https://gitee.com/openeuler/kernel/pulls/15733

 

Reviewed-by: default avatarLi Nan <linan122@huawei.com>
Reviewed-by: default avatarYe Weihua <yeweihua4@huawei.com>
Signed-off-by: default avatarLi Nan <linan122@huawei.com>
parents 411f2e6e da8e64f2

kernel/trace/trace_functions_graph.c

+1 −0
Original line number Diff line number Diff line
@@ -1244,6 +1244,7 @@ void graph_trace_close(struct trace_iterator *iter) 
	if (data) {

		free_percpu(data->cpu_data);

		kfree(data);

		iter->private = NULL;

	}

}

kernel/trace/trace_irqsoff.c

+0 −2
Original line number Diff line number Diff line
@@ -231,8 +231,6 @@ static void irqsoff_trace_open(struct trace_iterator *iter) 
{

	if (is_graph(iter->tr))

		graph_trace_open(iter);

	else

		iter->private = NULL;

}



static void irqsoff_trace_close(struct trace_iterator *iter)

kernel/trace/trace_sched_wakeup.c

+0 −2
Original line number Diff line number Diff line
@@ -168,8 +168,6 @@ static void wakeup_trace_open(struct trace_iterator *iter) 
{

	if (is_graph(iter->tr))

		graph_trace_open(iter);

	else

		iter->private = NULL;

}



static void wakeup_trace_close(struct trace_iterator *iter)