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 6DF79C49EA4 for ; Mon, 21 Jun 2021 17:58:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5771F61289 for ; Mon, 21 Jun 2021 17:58:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233593AbhFUSAP (ORCPT ); Mon, 21 Jun 2021 14:00:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:40210 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233313AbhFUR53 (ORCPT ); Mon, 21 Jun 2021 13:57:29 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5E631613BE; Mon, 21 Jun 2021 17:53:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624298019; bh=t7mEaJ1yES64bmuq1m0TdfMGZQUVXejcmtzHzjX1drI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HzO1G2qbwcldgQzFhMhsmmSBWMG7cCGzRUGYhNxHD0KrgAkgcSxOopnpyyzNowCVH clxjHTqFacAhByG+z3o5mV4LhmSrTvUpvLl1zSFRaKJTdhwRtOY7QrlrFho9dwTlHB fwpcFFadnzp4E3RncWwCQBW8FXSzG0fpLGtqwmYZ8zVqit8LDz2sSz95pgkaEqYtTv RuWr69yhGQzByEIEVvbIPkDoqVhe+xAnlFhRAQ/O/6dsqdOkqvVYfm8HjOTYl920yF lH/NHq8OI0nLhMmO5i/UjBsTVwKwvZm37KJ/Ypl1/t3q8WUCjeQkbkUF51c+GBFNZW Zn+oZ+QaRPIHQ== 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 5.10 25/35] r8152: Avoid memcpy() over-reading of ETH_SS_STATS Date: Mon, 21 Jun 2021 13:52:50 -0400 Message-Id: <20210621175300.735437-25-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210621175300.735437-1-sashal@kernel.org> References: <20210621175300.735437-1-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 f5010f8ac1ec..95e27fb7d2c1 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -6054,7 +6054,7 @@ 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