From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: mac80211 truesize bugs Date: Thu, 01 May 2008 03:53:35 -0700 (PDT) Message-ID: <20080501.035335.216935614.davem@davemloft.net> References: <20080501.024320.212547875.davem@davemloft.net> <20080501.034950.261408566.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: johannes@sipsolutions.net, mb@bu3sch.de, netdev@vger.kernel.org, linux-wireless@vger.kernel.org To: herbert@gondor.apana.org.au Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:54986 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752961AbYEAKxi (ORCPT ); Thu, 1 May 2008 06:53:38 -0400 In-Reply-To: <20080501.034950.261408566.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: From: David Miller Date: Thu, 01 May 2008 03:49:50 -0700 (PDT) > I guess it's the pskb_expand_head() calls done by net/mac80211/tx.c > I suspect we'll need to orphan early in order to accomodate these > adjustments, otherwise socket memory buffer allocations will > be corrupted. I think the mac80211 encryption paths on TX could be doing this as well, just something I noticed meanwhile.