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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0B2EC433FE for ; Wed, 24 Nov 2021 13:09:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344745AbhKXNMq (ORCPT ); Wed, 24 Nov 2021 08:12:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:47544 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343901AbhKXNJw (ORCPT ); Wed, 24 Nov 2021 08:09:52 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A6C47613B1; Wed, 24 Nov 2021 12:41:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637757661; bh=LWmrlAyRHjL2tMGB7OPivzvCmM5nO4jCdBzxwSyOBDM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ql5hw2YEHwxg4FKqpHOJ7gYBk5SZGPWbn1nYt1vkJ6YKgIck2MHox8E76wlgX47MS bvjy8x0QNAadSFyUFiJT4wpeWWyq6hYYuLvmzUB+x70dwJt8Q4Fq3qJex2/Z2NcRot 82kPlKg6d6iadiov0+vBMFWgN2peALOcoWQT2eaU= 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 4.19 236/323] 9p/net: fix missing error check in p9_check_errors Date: Wed, 24 Nov 2021 12:57:06 +0100 Message-Id: <20211124115726.888841089@linuxfoundation.org> X-Mailer: git-send-email 2.34.0 In-Reply-To: <20211124115718.822024889@linuxfoundation.org> References: <20211124115718.822024889@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 @@ -553,6 +553,8 @@ 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);