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 DEC89C433F5 for ; Tue, 16 Nov 2021 00:38:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C7EFE615E3 for ; Tue, 16 Nov 2021 00:38:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344312AbhKPAlS (ORCPT ); Mon, 15 Nov 2021 19:41:18 -0500 Received: from mail.kernel.org ([198.145.29.99]:45392 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344977AbhKOTZw (ORCPT ); Mon, 15 Nov 2021 14:25:52 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9F9F9636F7; Mon, 15 Nov 2021 19:07:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637003279; bh=Fm1GaOwNc/Btx/latzOdwlW0npqN7lWg2ANQjKdp/pY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j3vaNINZpn1Cdj9Uqtjd8JyUXk4vFgQ+fq/42DBBAaN43mvX9JBRYo9ipYnDAuTFg yVP+arL067zyZXA16JCTawNf+Ea1RTV5xk/lMMH+yhQFFKQ4LXC/bJtLDdko9VXWvF BpN0pvC/fnmZF8a5EvSYFWLJE26fXaOYGtKZZQNw= 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 5.15 875/917] 9p/net: fix missing error check in p9_check_errors Date: Mon, 15 Nov 2021 18:06:10 +0100 Message-Id: <20211115165458.721407878@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165428.722074685@linuxfoundation.org> References: <20211115165428.722074685@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 @@ -541,6 +541,8 @@ 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);