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 6FEDB315D49; Sat, 12 Sep 2026 12:53:03 +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=1789217584; cv=none; b=khxJa6jNvtPeCBISfKVodBvF6avICcvPDq8exlwV6oI0WIA93seREqVaXBfIc9lmaT+xVLY5cvL5x+DOhJMQZoZXg8d0bokI7PRIJZ1Y0K9bPh/1D6AEYfff3vJL97Odn4+bMowyp71SaY9ZiFnl3liNZ7V+CaU6nI0VEaeEq48= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789217584; c=relaxed/simple; bh=MKwa17w9Z90hxjtLNjQoV7WPjJbHdroVhW3NQ4C9hVs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lsrni5VpG/iZQd1snSQAP/VME2ZheJ7Y1wjlvUTnac06VaXHZacArBuarFfybGuEusnGrKE/SLSF6qaEIu7uvadFQI5J/egPk4ByXV398XpqXWkMLRpeWwmpz4xHmnV+NqqhPKUQ7XpQaPoOylOOP473R5hPKWmtFmORqgOJp4w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OEFKXNrS; 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="OEFKXNrS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8C0CE1F000FF; Sat, 12 Sep 2026 12:53:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789217583; bh=CJ8AytVf5mlMX0TlopS3Y5WclKoBzTBWjDckov6obIc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=OEFKXNrSWhz3vMlEfMIhAmXLvcDLVxgO3VNJSaIMAzFwg1IMQd+VITZXvuRBLVSOl PC58Op96RYaQNka3iwejYsuGnJoRNArZpTeDlAS+1VnT8LQr4nmdpuzBHzB2nSuFdD vdtMmIsBdx7EqwvQ+1gM3YFeWkGvLymotzse4Eek= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jie Gan , Leo Yan , Yeoreum Yun , Suzuki K Poulose , Sasha Levin Subject: [PATCH 6.12 0961/1376] coresight: etm4x: fix leaked trace id Date: Sat, 12 Sep 2026 08:56:27 +0200 Message-ID: <20260912065628.978276585@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.535295758@linuxfoundation.org> References: <20260912065607.535295758@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: Yeoreum Yun [ Upstream commit 467e5862ccb0eed907002f4c6d3badfe34360940 ] If etm4_enable_sysfs() fails in cscfg_csdev_enable_active_config(), the trace ID may be leaked because it is not released. To address this, call etm4_release_trace_id() when etm4_enable_sysfs() fails in cscfg_csdev_enable_active_config(). Fixes: 7ebd0ec6cf94 ("coresight: configfs: Allow configfs to activate configuration") Reviewed-by: Jie Gan Reviewed-by: Leo Yan Signed-off-by: Yeoreum Yun Signed-off-by: Suzuki K Poulose Link: https://lore.kernel.org/r/20260725113645.57519-4-yeoreum.yun@arm.com Signed-off-by: Sasha Levin --- drivers/hwtracing/coresight/coresight-etm4x-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 0157dc5b08928..312abd57ddce9 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -854,8 +854,10 @@ static int etm4_enable_sysfs(struct coresight_device *csdev) cscfg_config_sysfs_get_active_cfg(&cfg_hash, &preset); if (cfg_hash) { ret = cscfg_csdev_enable_active_config(csdev, cfg_hash, preset); - if (ret) + if (ret) { + etm4_release_trace_id(drvdata); return ret; + } } spin_lock(&drvdata->spinlock); -- 2.53.0