From e62d4192e593630f355094adc467058a05bdc935 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 18 Jun 2026 14:18:27 +0200 Subject: perf: Fix addr_filter_ranges lifetime Lee Jia Jie reported that since event::addr_filter_ranges is used under RCU, it should be RCU freed. Reported-by: Lee Jia Jie Signed-off-by: Peter Zijlstra (Intel) --- kernel/events/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'kernel') diff --git a/kernel/events/core.c b/kernel/events/core.c index 7935d5663944..c3a84c7bcaeb 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5303,6 +5303,7 @@ static void free_event_rcu(struct rcu_head *head) if (event->ns) put_pid_ns(event->ns); perf_event_free_filter(event); + kfree(event->addr_filter_ranges); kmem_cache_free(perf_event_cache, event); } @@ -5750,8 +5751,6 @@ static void __free_event(struct perf_event *event) if (event->attach_state & PERF_ATTACH_CALLCHAIN) put_callchain_buffers(); - kfree(event->addr_filter_ranges); - if (event->attach_state & PERF_ATTACH_EXCLUSIVE) exclusive_event_destroy(event); -- cgit v1.2.3