From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EDDAE502D53; Thu, 17 Sep 2026 18:02:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789668176; cv=none; b=YPPEcgmppa6RtatFJkvqbbzGxJ/v91xoXTnmNWg029iU2l5Xfsqpc9j2KdHEJCExFLkzo/AzglR9pXX+JJIXrVf7Qdid31pCjHzpRsI4gIEMJVWBS3/Ow6aj5bwlAjdHfSUSRWsT5ld3xYhkgTOVwCkLrBIb7fM+rrMsYe74eoU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789668176; c=relaxed/simple; bh=htjd3JYUzLCca+c8P5dFB2CAhUEbUJbybaB8BntxT9o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=owfiXcVyRDAX4Z4cjEMy39uk8IrAdR1V/azRou14ZTiFZoYKYPYNNn+xM73aHmrsPhTKKoV4dMtfa6maL+CvTvFtZQQlCT3iTbAPW5HxLfO+soH6frDtzxSB66ui7sI3yf7INk2dKGXVEttl3p/vYSEwUlZ3GJTyg5NGI4qj9mI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=aNu958Ik; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="aNu958Ik" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 525621F000FF; Thu, 17 Sep 2026 18:02:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789668174; bh=DXaGo92HYR+NhYhpGSaPdOucTHl5RNaaS/4mjgP1SVg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=aNu958Ik9QeZspphIwPVXqxb/wqF9JSGLmz3NHcTVB+V1BBTFm+PbQp30Q/vjOcnW 3sdnY3sTCji6mAVrvTc1/aROxBS/2AeRGvX2n5UCmWnwKpRhqk9Blh39yxc1TwCnwO x0t3gIPJW9fXeQ+dzQaobhBcY+9WtW+mqDZIuy2Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lee Jia Jie , "Peter Zijlstra (Intel)" , Sasha Levin Subject: [PATCH 6.12 0339/1102] perf: Fix addr_filter_ranges lifetime Date: Thu, 17 Sep 2026 16:04:42 +0100 Message-ID: <20260917151548.146812159@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151539.408551884@linuxfoundation.org> References: <20260917151539.408551884@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Peter Zijlstra [ Upstream commit e62d4192e593630f355094adc467058a05bdc935 ] 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) Signed-off-by: Sasha Levin --- kernel/events/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 40e82ab016d94..806bec5d0761a 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5124,6 +5124,7 @@ 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); } @@ -5336,8 +5337,6 @@ 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); -- 2.53.0