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 23A65C76191 for ; Mon, 15 Jul 2019 13:40:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E22ED2080A for ; Mon, 15 Jul 2019 13:40:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563198030; bh=wzLVTzreBmGjVCvdu0F0pm6PPsPL70KILvJxHa/KgnM=; h=From:To:Cc:Subject:Date:List-ID:From; b=qbOwFUvm4usaIu0kf8i9S8Hln2MvDNl7/IaX9m5acjPRWFl34N66Nr8vfWD/VM/IB AjFG4b3gjkZuz/uGdBkjJnK0NB4x3RjhhrSU1Ni1l/pYVywJNbglwTjPoSSW9UFI3O AK5aylBBNPwxfZwKOdHlKg6PICu4Oiy4QhzcKFJs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730848AbfGONkS (ORCPT ); Mon, 15 Jul 2019 09:40:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:42028 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730447AbfGONkQ (ORCPT ); Mon, 15 Jul 2019 09:40:16 -0400 Received: from sasha-vm.mshome.net (unknown [73.61.17.35]) (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 E91532080A; Mon, 15 Jul 2019 13:40:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563198015; bh=wzLVTzreBmGjVCvdu0F0pm6PPsPL70KILvJxHa/KgnM=; h=From:To:Cc:Subject:Date:From; b=LpCEPY1/uLFTjAzw4WM/PgrD11cUMmMznQMBa7WugrSaps5amRNQN1q/Yx964FKlW pETTL1HbT7SI4zZ9KWnMVcRU+cR8WhvykEofdkQlJg2fcwv4OYxW7ANPlUehv6sw/K 01dNgfiJ2ZfbEcKgpQq6ewa7HXRuBmnhnlGfVacc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: "Gustavo A. R. Silva" , Maya Erez , Kalle Valo , Sasha Levin , linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 001/105] wil6210: fix potential out-of-bounds read Date: Mon, 15 Jul 2019 09:38:27 -0400 Message-Id: <20190715134012.3226-1-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: "Gustavo A. R. Silva" [ Upstream commit bfabdd6997323adbedccb13a3fed1967fb8cf8f5 ] Notice that *rc* can evaluate to up to 5, include/linux/netdevice.h: enum gro_result { GRO_MERGED, GRO_MERGED_FREE, GRO_HELD, GRO_NORMAL, GRO_DROP, GRO_CONSUMED, }; typedef enum gro_result gro_result_t; In case *rc* evaluates to 5, we end up having an out-of-bounds read at drivers/net/wireless/ath/wil6210/txrx.c:821: wil_dbg_txrx(wil, "Rx complete %d bytes => %s\n", len, gro_res_str[rc]); Fix this by adding element "GRO_CONSUMED" to array gro_res_str. Addresses-Coverity-ID: 1444666 ("Out-of-bounds read") Fixes: 194b482b5055 ("wil6210: Debug print GRO Rx result") Signed-off-by: Gustavo A. R. Silva Reviewed-by: Maya Erez Signed-off-by: Kalle Valo Signed-off-by: Sasha Levin --- drivers/net/wireless/ath/wil6210/txrx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 389c718cd257..16750056b8b5 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -732,6 +732,7 @@ void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev) [GRO_HELD] = "GRO_HELD", [GRO_NORMAL] = "GRO_NORMAL", [GRO_DROP] = "GRO_DROP", + [GRO_CONSUMED] = "GRO_CONSUMED", }; if (ndev->features & NETIF_F_RXHASH) -- 2.20.1