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,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 CB91AC3A5A8 for ; Wed, 4 Sep 2019 17:59:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 96E23208E4 for ; Wed, 4 Sep 2019 17:59:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567619946; bh=wfm3p1mSjCIv3JJ5U8S/ye/6/qwD8rPoPH5Qc/F+lTQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=FK916I48Zxc36AcReYv8AmWrzlVPCGSjShjyMkVyWccNMWJuauxS/4r1GdL62Fb8K jB8eQCCX0XpBDxO40FnqwnyuzRcTLN/Db7HDXePpKLfhYQzqzN3cBZaQzECdUCds6P X6LHtx2hLdekiQrB4RKJA0db1bHWmlOiuUMjodaU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388183AbfIDR7F (ORCPT ); Wed, 4 Sep 2019 13:59:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:37750 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732997AbfIDR7D (ORCPT ); Wed, 4 Sep 2019 13:59:03 -0400 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 ADD5423400; Wed, 4 Sep 2019 17:59:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567619943; bh=wfm3p1mSjCIv3JJ5U8S/ye/6/qwD8rPoPH5Qc/F+lTQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yl//7GqwnhjprxyKmt9rxl9VUyj6BAUvHxQD7rVxJxSqkQNF4iR2J9Ff/Oz3o3l/o oIIDVRIMEQpWJU2LZBgSAGSjtNDb11ct4uZP40wk2RxRpSxo4Eh80zsUAlx3UpPVxX /pqwKbtjBSnBfMFIfKfQKNgN1q01IDEvO0q66U80= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wang Xiayang , Marc Kleine-Budde , Sasha Levin Subject: [PATCH 4.9 15/83] can: sja1000: force the string buffer NULL-terminated Date: Wed, 4 Sep 2019 19:53:07 +0200 Message-Id: <20190904175305.226467808@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190904175303.488266791@linuxfoundation.org> References: <20190904175303.488266791@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 [ Upstream commit cd28aa2e056cd1ea79fc5f24eed0ce868c6cab5c ] strncpy() does not ensure NULL-termination when the input string size equals to the destination buffer size IFNAMSIZ. The output string 'name' is passed to dev_info which relies on NULL-termination. Use strlcpy() instead. This issue is identified by a Coccinelle script. Signed-off-by: Wang Xiayang Signed-off-by: Marc Kleine-Budde Signed-off-by: Sasha Levin --- drivers/net/can/sja1000/peak_pcmcia.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/sja1000/peak_pcmcia.c b/drivers/net/can/sja1000/peak_pcmcia.c index dd56133cc4616..fc9f8b01ecae2 100644 --- a/drivers/net/can/sja1000/peak_pcmcia.c +++ b/drivers/net/can/sja1000/peak_pcmcia.c @@ -487,7 +487,7 @@ static void pcan_free_channels(struct pcan_pccard *card) if (!netdev) continue; - strncpy(name, netdev->name, IFNAMSIZ); + strlcpy(name, netdev->name, IFNAMSIZ); unregister_sja1000dev(netdev); -- 2.20.1