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[2620:137:e000::1:20]) by mx.google.com with ESMTP id lw16-20020a17090b181000b00225f9fff787si14374316pjb.146.2023.01.09.04.16.42; Mon, 09 Jan 2023 04:16:48 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=zte.com.cn Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233085AbjAILj6 (ORCPT + 53 others); Mon, 9 Jan 2023 06:39:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236687AbjAILj2 (ORCPT ); Mon, 9 Jan 2023 06:39:28 -0500 Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [63.216.63.40]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C115CB71; Mon, 9 Jan 2023 03:39:25 -0800 (PST) Received: from mse-fl1.zte.com.cn (unknown [10.5.228.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mxhk.zte.com.cn (FangMail) with ESMTPS id 4NrBmr3DPZz8R03d; Mon, 9 Jan 2023 19:39:24 +0800 (CST) Received: from szxlzmapp01.zte.com.cn ([10.5.231.85]) by mse-fl1.zte.com.cn with SMTP id 309BdI4g088435; Mon, 9 Jan 2023 19:39:18 +0800 (+08) (envelope-from yang.yang29@zte.com.cn) Received: from mapi (szxlzmapp01[null]) by mapi (Zmail) with MAPI id mid14; Mon, 9 Jan 2023 19:39:21 +0800 (CST) Date: Mon, 9 Jan 2023 19:39:21 +0800 (CST) X-Zmail-TransId: 2b0363bbfce9ffffffffb25ceaed X-Mailer: Zmail v1.0 Message-ID: <202301091939219689840@zte.com.cn> Mime-Version: 1.0 From: To: Cc: , , , , Subject: =?UTF-8?B?W1BBVENIIGxpbnV4LW5leHRdIHRyYWNpbmc6IHVzZSBzdHJzY3B5KCkgdG8gaW5zdGVhZCBvZiBzdHJuY3B5KCk=?= Content-Type: text/plain; charset="UTF-8" X-MAIL: mse-fl1.zte.com.cn 309BdI4g088435 X-Fangmail-Gw-Spam-Type: 0 X-FangMail-Miltered: at cgslv5.04-192.168.250.137.novalocal with ID 63BBFCEC.000 by FangMail milter! X-FangMail-Envelope: 1673264364/4NrBmr3DPZz8R03d/63BBFCEC.000/10.5.228.132/[10.5.228.132]/mse-fl1.zte.com.cn/ X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 63BBFCEC.000/4NrBmr3DPZz8R03d X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Xu Panda The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL-terminated strings. Signed-off-by: Xu Panda Signed-off-by: Yang Yang --- kernel/trace/trace_events_synth.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace_events_synth.c b/kernel/trace/trace_events_synth.c index 67592eed0be8..cd636edd045e 100644 --- a/kernel/trace/trace_events_synth.c +++ b/kernel/trace/trace_events_synth.c @@ -195,8 +195,7 @@ static int synth_field_string_size(char *type) if (len == 0) return 0; /* variable-length string */ - strncpy(buf, start, len); - buf[len] = '\0'; + strscpy(buf, start, len + 1); err = kstrtouint(buf, 0, &size); if (err) -- 2.15.2