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 33B1E519E0C; Thu, 17 Sep 2026 17:04:11 +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=1789664652; cv=none; b=QCDYXlmK1Yj072NV4+rwsMEjx31ykkcpk6Ju1WlNw05SHYFHKTItQynzOTteWtXPheez5JaegWyfMqG0D01y5Oz9GD271MRC/+EVn2X2aNwlFPCVLPuYY1y9zo5tcnfIPM+Xo0YQNCnvWXF1At+F0LcgU4kjdsTSIcMdRZcBmko= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789664652; c=relaxed/simple; bh=SiXVV2F3ZkiGK5UKKSLGXCWXAHjMyHYF6CT+Xe2VYjM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lpJjUG8OqTKvXCeEdiRoQK5eOY59hwIkHpm+4mpI9cblHOddo3gEvE1dFq/C7i/M8cj4RaY2iOrXsV92ilRcazsZalW2JY57TxJCGt9QOHodKRnetDHWUXMGx43rMDXOn4AidebMQ8Qnb+EIL64+b6VQLfG98TX6/vzS9TVOPrU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=pEB1k/SZ; 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="pEB1k/SZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 80DA81F000FF; Thu, 17 Sep 2026 17:04:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789664651; bh=1bLUefknMK0hVa4ldh3cFKQHyhbCnMT1S5u7rA67vDQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=pEB1k/SZYk/ZEIroQVinmwaSDbuiUIvfKryFBB1IOmIbvzPZ44Ld9FxJmX6Opf8Tn 41aybrKGMeHWoiDySCj2UhY3rOSKtyyFzdO600b44bmQ19QjdzAYEYDCu1zMtnH+nh vCKyyCeORQkVmNoqVkwYf1O71bnoB342ewRO/AXI= 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 6.18 0444/1250] perf: Fix addr_filter_ranges lifetime Date: Thu, 17 Sep 2026 16:03:59 +0100 Message-ID: <20260917151604.037070119@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151551.901433442@linuxfoundation.org> References: <20260917151551.901433442@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 6.18-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 76d048a488270..b3bdb23106f37 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5168,6 +5168,7 @@ 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); } @@ -5614,8 +5615,6 @@ 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