From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: [PATCH net-next] vhost_net: add a missing error return Date: Fri, 21 Sep 2018 10:29:19 +0800 Message-ID: <159c9759-08fe-e170-f5ce-814da1818f48@redhat.com> References: <20180920100158.GA9551@mwanda> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Cc: kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kernel-janitors@vger.kernel.org To: Dan Carpenter , "Michael S. Tsirkin" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:54842 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725828AbeIUIQD (ORCPT ); Fri, 21 Sep 2018 04:16:03 -0400 In-Reply-To: <20180920100158.GA9551@mwanda> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: On 2018年09月20日 18:01, Dan Carpenter wrote: > We accidentally left out this error return so it leads to some use after > free bugs later on. > > Fixes: 0a0be13b8fe2 ("vhost_net: batch submitting XDP buffers to underlayer sockets") > Signed-off-by: Dan Carpenter > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index dd4e0a301635..1bff6bc8161a 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -1244,6 +1244,7 @@ static int vhost_net_open(struct inode *inode, struct file *f) > kfree(vqs); > kvfree(n); > kfree(queue); > + return -ENOMEM; > } > n->vqs[VHOST_NET_VQ_TX].xdp = xdp; > Acked-by: Jason Wang Thanks!