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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A373C43441 for ; Fri, 23 Nov 2018 13:07:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5583920861 for ; Fri, 23 Nov 2018 13:07:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5583920861 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=corsac.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439702AbeKWXvd convert rfc822-to-8bit (ORCPT ); Fri, 23 Nov 2018 18:51:33 -0500 Received: from smtp6-g21.free.fr ([212.27.42.6]:35470 "EHLO smtp6-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403801AbeKWXvd (ORCPT ); Fri, 23 Nov 2018 18:51:33 -0500 Received: from mail.corsac.net (unknown [IPv6:2a01:e34:ec2f:4e20::5]) by smtp6-g21.free.fr (Postfix) with ESMTPS id 092DD780336 for ; Fri, 23 Nov 2018 14:07:24 +0100 (CET) Received: from scapa.corsac.net (unknown [IPv6:2a01:e34:ec2f:4e21::1]) by mail.corsac.net (Postfix) with ESMTPS id BD79792 for ; Fri, 23 Nov 2018 14:07:22 +0100 (CET) Received: from corsac (uid 1000) (envelope-from corsac@corsac.net) id a00ca by scapa.corsac.net (DragonFly Mail Agent v0.11); Fri, 23 Nov 2018 14:07:22 +0100 Message-ID: Subject: Re: [PATCH] usbnet: ipheth: fix potential recvmsg bug and recvmsg bug 2 From: Yves-Alexis Perez To: Bernd Eckstein <3erndeckstein@gmail.com>, davem@davemloft.net Cc: linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, 3ernd.Eckstein@gmail.com, Oliver Zweigle Date: Fri, 23 Nov 2018 14:07:18 +0100 In-Reply-To: <1542977486-15363-1-git-send-email-3ernd.Eckstein@gmail.com> References: <1542977486-15363-1-git-send-email-3ernd.Eckstein@gmail.com> Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.30.2-1 Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Fri, 2018-11-23 at 13:51 +0100, Bernd Eckstein wrote: > This causes the following problems: > - double free of the skb or potential memory leak > - in dmesg: 'recvmsg bug' and 'recvmsg bug 2' and eventually > general protection fault For what it's worth, Bernd contacted me because it looks like this was the cause of https://lore.kernel.org/lkml/20180605085450.GA3506@scapa.corsac.net/ I wanted to try Bernd patch, unfortunately I wasn't able to reproduce the freezes on more recent kernels, so right now I can't add a Tested-By, but I'd be happy to be kept on CC. Regards, - -- Yves-Alexis -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE8vi34Qgfo83x35gF3rYcyPpXRFsFAlv3+4YACgkQ3rYcyPpX RFuuoQgAhJHvzpl1yr7ZM215DviNj8Q/n7WpiWSk6ik5Ts8n4qsgIRcXojhEPfkw KAmpJ7G1zRgxRtZayiKLUl7RE3uWNOjTph3pzztBmMI+P7C/R4pVdZeRlandGsju YH6G32u+BB55tJw/TYrahlG3Ni0HNDoL+QfgJJno6/dr9V+YFr+opTCuDchaBHeJ acVsogUkyclvAutHt3UMjiDvVB12mW6IFz997y1Fv3JMT9HTQrDT9VdMUSr2WC5s rb9ONoim1ADDgTBN10mbPWZ80aooR8GtNEGpFa2EL0vPdNVlqyZqV46hYbLuZZ42 tMF3AD6hrQqxitCS3QGJpWjFFscFMA== =OkrF -----END PGP SIGNATURE-----