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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC572C433F5 for ; Mon, 15 Nov 2021 23:24:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A80E261265 for ; Mon, 15 Nov 2021 23:24:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352466AbhKOX1D (ORCPT ); Mon, 15 Nov 2021 18:27:03 -0500 Received: from mail.kernel.org ([198.145.29.99]:44644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245013AbhKOTSW (ORCPT ); Mon, 15 Nov 2021 14:18:22 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 25A496343C; Mon, 15 Nov 2021 18:27:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637000825; bh=GV+yLY1qMyJbDgABWqeKRNlVuWlo462KBrJpGEaa8Ic=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fXvYjej7DcDT6Csvn94uYgyWUR3C2pM0QvP0hXfy0AIvIcuTfnyczm1nzoRw2+yuN QfiNMlyI3eQ4OqUDCeCSF1chqm+KAxCQLMBqxozDRpGUB8q5VzR5wt+ioTir9ejLBu mEHsxXqq/FfxNRMdHWq9zm9cZAu7Rnzic7ANI318= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, syzbot+06472778c97ed94af66d@syzkaller.appspotmail.com, Dominique Martinet Subject: [PATCH 5.14 806/849] 9p/net: fix missing error check in p9_check_errors Date: Mon, 15 Nov 2021 18:04:49 +0100 Message-Id: <20211115165447.500722127@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165419.961798833@linuxfoundation.org> References: <20211115165419.961798833@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: Dominique Martinet commit 27eb4c3144f7a5ebef3c9a261d80cb3e1fa784dc upstream. Link: https://lkml.kernel.org/r/99338965-d36c-886e-cd0e-1d8fff2b4746@gmail.com Reported-by: syzbot+06472778c97ed94af66d@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Signed-off-by: Dominique Martinet Signed-off-by: Greg Kroah-Hartman --- net/9p/client.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/9p/client.c +++ b/net/9p/client.c @@ -539,6 +539,8 @@ static int p9_check_errors(struct p9_cli kfree(ename); } else { err = p9pdu_readf(&req->rc, c->proto_version, "d", &ecode); + if (err) + goto out_err; err = -ecode; p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);