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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 4DBCFC2BA19 for ; Wed, 15 Apr 2020 11:51:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 199FB20732 for ; Wed, 15 Apr 2020 11:51:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ppu4Rf1H"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="rCO7KyTt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 199FB20732 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=oaslfXoR57lSQA/74eDJT9UJ0k+Fif/lS6xwiCFGTeM=; b=Ppu4Rf1HNjZ7NM kB3d/EHIsaFEmBPD1LVGbdSTj8EkKBQuSAAHc/yQp7e5KqpM2VQci2dyCeClmcYdIj84U/Dy5Gtnv 0diHNoVH4SJ6T17kEGo0LT262WTFwRDfDSHrN8FB0EY7cMr5Hdm0bWVJ9Vdb7nI1YPIybGmO/W21C u/vC0TyROZFg9Kr2N7bwzdwPcm0at4wsKGRNKoTJFgHr8jT240I90mOkL+ddwm4Ux3SVqWZ2EXZBb JD+szed/E33RxCoWmiOq7i/kZuZ72NCZ17wvTW/Z+QIRla7RwGcKjvQ0TFN1MeyW9XVWjuz6pjaOg /DntLWdLxadk5mg+pkZQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jOgZH-0003Eo-In; Wed, 15 Apr 2020 11:50:59 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jOgVC-0005ID-50 for linux-arm-kernel@lists.infradead.org; Wed, 15 Apr 2020 11:46:47 +0000 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 04F9E20775; Wed, 15 Apr 2020 11:46:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586951205; bh=dv2tGa7oBR3Ndx5yj/9PBwKQi3aXbOwvi6Bg6mpOi6o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rCO7KyTtHsFTDtey6x9DXWkLEdQZqZz/x2TV5dcmXZHSdY95NaQXHzC1NsHTVl+MI juj+9GwfsAxw3YolT4l0xL/L5A+VaVIIB3mSN+1X2jWyFoWDGABxtisSWkDozqQ9XB mKoa5w0MCypc1pwdW8cB3yhrIty6IklEv9JjlaTo= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 19/40] net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting Date: Wed, 15 Apr 2020 07:46:02 -0400 Message-Id: <20200415114623.14972-19-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200415114623.14972-1-sashal@kernel.org> References: <20200415114623.14972-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200415_044646_212805_3EDB66F0 X-CRM114-Status: GOOD ( 10.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Jisheng Zhang , "David S . Miller" , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Jisheng Zhang [ Upstream commit 3e1221acf6a8f8595b5ce354bab4327a69d54d18 ] Commit 9463c4455900 ("net: stmmac: dwmac1000: Clear unused address entries") cleared the unused mac address entries, but introduced an out-of bounds mac address register programming bug -- After setting the secondary unicast mac addresses, the "reg" value has reached netdev_uc_count() + 1, thus we should only clear address entries if (addr < perfect_addr_number) Fixes: 9463c4455900 ("net: stmmac: dwmac1000: Clear unused address entries") Signed-off-by: Jisheng Zhang Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index 7b2a84320aabd..e4e9a7591efe9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -218,7 +218,7 @@ static void dwmac1000_set_filter(struct mac_device_info *hw, reg++; } - while (reg <= perfect_addr_number) { + while (reg < perfect_addr_number) { writel(0, ioaddr + GMAC_ADDR_HIGH(reg)); writel(0, ioaddr + GMAC_ADDR_LOW(reg)); reg++; -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel