From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8967C43217 for ; Wed, 19 Oct 2022 11:54:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230321AbiJSLyV (ORCPT ); Wed, 19 Oct 2022 07:54:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55410 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231867AbiJSLxu (ORCPT ); Wed, 19 Oct 2022 07:53:50 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6474624BD3; Wed, 19 Oct 2022 04:32:32 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 8EC79B822F0; Wed, 19 Oct 2022 08:46:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F33E0C433B5; Wed, 19 Oct 2022 08:46:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666169207; bh=w7qwQBLy+nCzJ16X8E1IqSPvcC1H6D9kimjmDJhC2Hc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AK+C1YqZgnMT2/+V84zyk+A3OSVEYfzdCwoaP3CJewYRrODcVSdKmOPZG4xlvsivd 49xbPxIGMkdzBIvCdhIiJkB5bi7mmro/DqsKAaigsVP6M4WoesT8W4lRbY13Q4HpQG N6gh13cotZO4NrCy34b25Nj8NsLQ07GPea9EONCg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ingo Molnar , Tom Zanussi , Linyu Yuan , "Masami Hiramatsu (Google)" , Tao Chen , "Steven Rostedt (Google)" Subject: [PATCH 6.0 157/862] tracing/eprobe: Fix alloc event dir failed when event name no set Date: Wed, 19 Oct 2022 10:24:04 +0200 Message-Id: <20221019083256.907955488@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221019083249.951566199@linuxfoundation.org> References: <20221019083249.951566199@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Tao Chen commit dc399adecd4e2826868e5d116a58e33071b18346 upstream. The event dir will alloc failed when event name no set, using the command: "echo "e:esys/ syscalls/sys_enter_openat file=\$filename:string" >> dynamic_events" It seems that dir name="syscalls/sys_enter_openat" is not allowed in debugfs. So just use the "sys_enter_openat" as the event name. Link: https://lkml.kernel.org/r/1664028814-45923-1-git-send-email-chentao.kernel@linux.alibaba.com Cc: Ingo Molnar Cc: Tom Zanussi Cc: Linyu Yuan Cc: Tao Chen Signed-off-by: Tao Chen Signed-off-by: Steven Rostedt (Google) Signed-off-by: Greg Kroah-Hartman --- kernel/trace/trace_eprobe.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/kernel/trace/trace_eprobe.c +++ b/kernel/trace/trace_eprobe.c @@ -968,8 +968,7 @@ static int __trace_eprobe_create(int arg } if (!event) { - strscpy(buf1, argv[1], MAX_EVENT_NAME_LEN); - sanitize_event_name(buf1); + strscpy(buf1, sys_event, MAX_EVENT_NAME_LEN); event = buf1; }