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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 5CBECC48BC2 for ; Mon, 21 Jun 2021 17:54:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 43ABD61374 for ; Mon, 21 Jun 2021 17:54:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233016AbhFUR4S (ORCPT ); Mon, 21 Jun 2021 13:56:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:39598 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232051AbhFURzJ (ORCPT ); Mon, 21 Jun 2021 13:55:09 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 89570611CE; Mon, 21 Jun 2021 17:52:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624297963; bh=8IWXICxHnpLryZrffT+43P2/Z7QBWVS2avVr93+qw3E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=REEgSSWIlpAKSFmaYe7wFxX40ilDq65sBofWG/RbELzX9JxHHWvbhJs/ZB6/FI4da 82Ooc0Yh0ZMI0x2t3oYcfY+wmIA4bMscXbVO1vr5QAEUvGOVK7crd0oxgllEnAy7uG +xu1UKDnwbRNN19HijW5uGVJeQHfJIF+pNJKS8XXUNDj1Ly1W6bvq6/1JSmBAaMz02 M7JnvtIOZ5dG5eE7RN+s2fA+x7Wjg9vcfgHN3pciSRBetkD1kgaTDoT/SKGRgce0ZP wqTSVsa8yrXZ54GaG895owGemz/IWsF4Q2ueYKhBrn1cL65ep1cG/7jTaYIqsOn+RC eJrk9KYvyM10Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kees Cook , "David S . Miller" , Sasha Levin , linux-usb@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 5.12 28/39] r8152: Avoid memcpy() over-reading of ETH_SS_STATS Date: Mon, 21 Jun 2021 13:51:44 -0400 Message-Id: <20210621175156.735062-28-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210621175156.735062-1-sashal@kernel.org> References: <20210621175156.735062-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kees Cook [ Upstream commit 99718abdc00e86e4f286dd836408e2834886c16e ] In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memcpy(), memmove(), and memset(), avoid intentionally reading across neighboring array fields. The memcpy() is copying the entire structure, not just the first array. Adjust the source argument so the compiler can do appropriate bounds checking. Signed-off-by: Kees Cook Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/usb/r8152.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 20fb5638ac65..23fae943a119 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -6078,7 +6078,7 @@ static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data) { switch (stringset) { case ETH_SS_STATS: - memcpy(data, *rtl8152_gstrings, sizeof(rtl8152_gstrings)); + memcpy(data, rtl8152_gstrings, sizeof(rtl8152_gstrings)); break; } } -- 2.30.2