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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 35F2EC432C0 for ; Fri, 22 Nov 2019 10:42:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 029DD20718 for ; Fri, 22 Nov 2019 10:42:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574419334; bh=7fjEwiSTXkaGr+C2UuO1PVeK6otW8t2730r5OGPfeSI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=08WgwKZSq735CiTxyAOSMqm9QwTueEPlyLJtFXGlm2urUbnE4jkO6HC5vcA6iWiRx XXMYYCAgtQS3cIQNausLTvs4xbkuncoZwQtfMF5dRWY70c+hcnpwu5G1/b/1F3AMT0 D0/JI0tNiCoqiM2q9ZT+Lc6A2AvC+PEioJYUZpas= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728321AbfKVKmM (ORCPT ); Fri, 22 Nov 2019 05:42:12 -0500 Received: from mail.kernel.org ([198.145.29.99]:47034 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727972AbfKVKmI (ORCPT ); Fri, 22 Nov 2019 05:42:08 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6FAF020718; Fri, 22 Nov 2019 10:42:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574419327; bh=7fjEwiSTXkaGr+C2UuO1PVeK6otW8t2730r5OGPfeSI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GLyC6/y8a0uXSfPbHrUewX9RJ2x0gF4SkIjSxgBaGkD3MPjl1NCJQPaxz9UI0Hhwh XjiicBohg/7IEHL3Yk4tgOSTqF9dO5HqC8gxALMcQ6fV3Ii3PIUgdgCLqYfbAZBK3p SILkMvBvnBrVjz42Mc/pNPFs4vaklm1ZhBbBwjvE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mitch Williams , Andrew Bowers , Jeff Kirsher , Sasha Levin Subject: [PATCH 4.9 029/222] i40e: use correct length for strncpy Date: Fri, 22 Nov 2019 11:26:09 +0100 Message-Id: <20191122100841.743459007@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100830.874290814@linuxfoundation.org> References: <20191122100830.874290814@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mitch Williams [ Upstream commit 7eb74ff891b4e94b8bac48f648a21e4b94ddee64 ] Caught by GCC 8. When we provide a length for strncpy, we should not include the terminating null. So we must tell it one less than the size of the destination buffer. Signed-off-by: Mitch Williams Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/i40e/i40e_ptp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c index f1feceab758a5..41cbcb0ac2d94 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c @@ -604,7 +604,8 @@ static long i40e_ptp_create_clock(struct i40e_pf *pf) if (!IS_ERR_OR_NULL(pf->ptp_clock)) return 0; - strncpy(pf->ptp_caps.name, i40e_driver_name, sizeof(pf->ptp_caps.name)); + strncpy(pf->ptp_caps.name, i40e_driver_name, + sizeof(pf->ptp_caps.name) - 1); pf->ptp_caps.owner = THIS_MODULE; pf->ptp_caps.max_adj = 999999999; pf->ptp_caps.n_ext_ts = 0; -- 2.20.1