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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, 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 05C4EC4332D for ; Mon, 15 Mar 2021 14:15:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAA7364FE0 for ; Mon, 15 Mar 2021 14:15:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236750AbhCOOPQ (ORCPT ); Mon, 15 Mar 2021 10:15:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:36788 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232513AbhCON7A (ORCPT ); Mon, 15 Mar 2021 09:59:00 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1AF1161477; Mon, 15 Mar 2021 13:58:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816723; bh=RyHO8vk/auTufqgBgtIrhPcvbNBy1A4A84KX4ZInkWU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h/bT+BjzqxBMBnOyb7LjJ2HqonWRSQdUASaSeyWlSvkfJC/wTAIYydgMPc1y0Pupr UFzzfLmmtlrQNYsqDTJsyxKUeE5Cx5DNASBDz5vazAow0gpPvOu/N49zAvhxaI7RIw Zhk8T0VhtaUY/uPLAeL9NU+6z2X8kO/gdz+hMku0= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, TOTE Robot , Jia-Ju Bai , "David S. Miller" Subject: [PATCH 4.19 028/120] net: qrtr: fix error return code of qrtr_sendmsg() Date: Mon, 15 Mar 2021 14:56:19 +0100 Message-Id: <20210315135720.914230813@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135720.002213995@linuxfoundation.org> References: <20210315135720.002213995@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Greg Kroah-Hartman From: Jia-Ju Bai commit 179d0ba0c454057a65929c46af0d6ad986754781 upstream. When sock_alloc_send_skb() returns NULL to skb, no error return code of qrtr_sendmsg() is assigned. To fix this bug, rc is assigned with -ENOMEM in this case. Fixes: 194ccc88297a ("net: qrtr: Support decoding incoming v2 packets") Reported-by: TOTE Robot Signed-off-by: Jia-Ju Bai Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/qrtr/qrtr.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -797,8 +797,10 @@ static int qrtr_sendmsg(struct socket *s plen = (len + 3) & ~3; skb = sock_alloc_send_skb(sk, plen + QRTR_HDR_MAX_SIZE, msg->msg_flags & MSG_DONTWAIT, &rc); - if (!skb) + if (!skb) { + rc = -ENOMEM; goto out_node; + } skb_reserve(skb, QRTR_HDR_MAX_SIZE);