Commit fd1edb3a authored Mar 28, 2011 by Peter Zijlstra Committed by Ingo Molnar Mar 31, 2011

perf: Fix task_struct reference leak



sys_perf_event_open() had an imbalance in the number of task refs it
took causing memory leakage

Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: stable@kernel.org # .37+
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent ab711fe0

kernel/perf_event.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -6531,6 +6531,11 @@ SYSCALL_DEFINE5(perf_event_open,
		goto err_alloc;
		}

		if (task) {
		put_task_struct(task);
		task = NULL;
		}

		/*
		* Look up the group leader (we will attach this event to it):
		*/