commit: fd1edb3aa2c1d92618d8f0c6d15d44ea41fcac6a From: Peter Zijlstra <[email protected]> Date: Mon, 28 Mar 2011 13:13:56 +0200 Subject: [PATCH] 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 <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: [email protected] # .37+ Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <[email protected]> --- kernel/perf_event.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 2616909..27960f1 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -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): */ _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
