Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754911AbZKTGUW (ORCPT ); Fri, 20 Nov 2009 01:20:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754133AbZKTGUV (ORCPT ); Fri, 20 Nov 2009 01:20:21 -0500 Received: from gw1.cosmosbay.com ([212.99.114.194]:48429 "EHLO gw1.cosmosbay.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754012AbZKTGUV (ORCPT ); Fri, 20 Nov 2009 01:20:21 -0500 Message-ID: <4B063509.10006@gmail.com> Date: Fri, 20 Nov 2009 07:19:53 +0100 From: Eric Dumazet User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: Shirley Ma CC: "Michael S. Tsirkin" , Avi Kivity , Rusty Russell , netdev@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/1] Defer skb allocation for both mergeable buffers and big packets in virtio_net References: <1258697745.7416.20.camel@localhost.localdomain> In-Reply-To: <1258697745.7416.20.camel@localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-1.6 (gw1.cosmosbay.com [0.0.0.0]); Fri, 20 Nov 2009 07:19:54 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 703 Lines: 27 Shirley Ma a ?crit : > This patch is generated against 2.6 git tree. I didn't break up this > patch since it has one functionality. Please review it. > > Thanks > Shirley > > Signed-off-by: Shirley Ma > ------ > > +void virtio_free_pages(void *buf) > +{ > + struct page *page = (struct page *)buf; > + > + while (page) { > + __free_pages(page, 0); > + page = (struct page *)page->private; > + } > +} > + Interesting use after free :) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/