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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 23E9FC433FF for ; Wed, 14 Aug 2019 02:13:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3CF720874 for ; Wed, 14 Aug 2019 02:13:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565748819; bh=kmMFtceavFSAC0WIdK8pZzNQNRGs6T/4Isu+nUIr9lE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XybWUtffV7dmQqKOA8AX0X3HJOotCOYywg+ID71SmSGXD+bd0Y/WchTMMKPQuwBr/ ZDCoBMnBK94M4f3hqoEdOWQ+6w2ikE2QS5Zp5oNKKleL2zI7ukdxHfrOJjNllSpgU/ sUPVzSpcfiU9munD1qESCjvd77mnMCCgKmjW6cVQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728354AbfHNCNh (ORCPT ); Tue, 13 Aug 2019 22:13:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:45584 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728327AbfHNCNd (ORCPT ); Tue, 13 Aug 2019 22:13:33 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1B63020844; Wed, 14 Aug 2019 02:13:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565748812; bh=kmMFtceavFSAC0WIdK8pZzNQNRGs6T/4Isu+nUIr9lE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qz/1deJDCdhYswZ+Onwxcwvspwg9NLJya5Pt2yizPsZs+BuKqgTZ1o/Jy+LckGcPR 0o/edo8D2cpF8US13dnvfDgn6LgzT51mrVvv4S182WfDZ2KF5nAR5TmFb7vfQonwSf fHeaZYEAUyw2pbrgljCJTNzSkrv8MFYFmU8VqvRc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Wang Xiayang , Marc Kleine-Budde , Sasha Levin , linux-can@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 5.2 076/123] can: peak_usb: force the string buffer NULL-terminated Date: Tue, 13 Aug 2019 22:10:00 -0400 Message-Id: <20190814021047.14828-76-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190814021047.14828-1-sashal@kernel.org> References: <20190814021047.14828-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wang Xiayang [ Upstream commit e787f19373b8a5fa24087800ed78314fd17b984a ] strncpy() does not ensure NULL-termination when the input string size equals to the destination buffer size IFNAMSIZ. The output string is passed to dev_info() which relies on the 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/usb/peak_usb/pcan_usb_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c index 458154c9b4829..4c2cda5ecf3f8 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c @@ -855,7 +855,7 @@ static void peak_usb_disconnect(struct usb_interface *intf) dev_prev_siblings = dev->prev_siblings; dev->state &= ~PCAN_USB_STATE_CONNECTED; - strncpy(name, netdev->name, IFNAMSIZ); + strlcpy(name, netdev->name, IFNAMSIZ); unregister_netdev(netdev); -- 2.20.1