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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 19E18C43382 for ; Fri, 28 Sep 2018 17:06:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C7D4420676 for ; Fri, 28 Sep 2018 17:06:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gKWoJF3i" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C7D4420676 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com 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 S1729298AbeI1XbO (ORCPT ); Fri, 28 Sep 2018 19:31:14 -0400 Received: from mail-lj1-f193.google.com ([209.85.208.193]:40521 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726473AbeI1XbO (ORCPT ); Fri, 28 Sep 2018 19:31:14 -0400 Received: by mail-lj1-f193.google.com with SMTP id r83-v6so6513124ljr.7; Fri, 28 Sep 2018 10:06:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=AmN2RLUraPOowbTm6/9lMPvStBmCf7yyXoO+5eYuees=; b=gKWoJF3ieKDgME2u0UTZFG5T+lU2mbZHUR7wYeb5yx9A5xkNJJMp7DYRqiCoGiLuG5 E+JAiOgh2mStxxNFYr0+0A1+WUh/2hJk7JClph8pHwKpbgTHi1thC8zU36K5BsKovJGK TyWRPYRDPDTUpmmxEvlEfo/9C3pEzj4etZlRb9CAl2FRqiIVGldz2BZPP2Vi4ccoCI9C E133sNa8a3hSy4WzwFtcfZL30t6/ju6suvVC0yTsVkbngKYmEyVPr8RPEopkYhKmAExi ElwvvPJbjLszwvD/MM+JQkQHxVBfQ9fJnoY11AgXXlEtyEF0aRlau/7mvFGvUQUjKejk TAZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=AmN2RLUraPOowbTm6/9lMPvStBmCf7yyXoO+5eYuees=; b=qfG1KOo7FvnoevFitXSJ0XJ6SwexJhNbZFLNY+fhE283C3bXN++SWKl28qSUSXjXQs knQtKiZeVyNdtJY3jM/EyOqZUacxLE34Eio3TeVzzVFqFfIohBgahEtZp+WW88v7PI2a wmNcqSJh1ZHa3PsN1ESNhYtSLKsaEyPEYtdK+GApq4k13fTg6qw1UoLUNfJ5j6Vl30rY 9SFCum77L/tYsv+yuJ5bpQSEtCaXfsER0xswOLgzd2cupbLXoHQMVYOXKWJeozNDRb5q hXhfrebKH9NeZR21fjAil+XB0hxIOoY1u+pros9xKQ1tiHon3tfdLfpD2w1KwSjpMzaR xZoQ== X-Gm-Message-State: ABuFfogcvuGYkCQW0tWUozo+tzVIZUKAi0j6m41CNCTlvfDakgnhqJR/ ewO9AcwYphCais3tZhGrFw4= X-Google-Smtp-Source: ACcGV609O+PVj14DY3yPpop98aI/qeujaeRsKT0zLXAcXdoggQRp84E0ToVaJYxmQfA3EJNIjxmQDw== X-Received: by 2002:a2e:84a:: with SMTP id g10-v6mr4752440ljd.158.1538154391645; Fri, 28 Sep 2018 10:06:31 -0700 (PDT) Received: from ?IPv6:2620:15c:2c1:200:55c7:81e6:c7d8:94b? ([2620:15c:2c1:200:55c7:81e6:c7d8:94b]) by smtp.gmail.com with ESMTPSA id w19-v6sm1019210lji.73.2018.09.28.10.06.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Sep 2018 10:06:30 -0700 (PDT) Subject: Re: INFO: trying to register non-static key in tun_chr_write_iter To: syzbot , brouer@redhat.com, davem@davemloft.net, edumazet@google.com, jasowang@redhat.com, linux-kernel@vger.kernel.org, mst@redhat.com, netdev@vger.kernel.org, sd@queasysnail.net, syzkaller-bugs@googlegroups.com References: <000000000000c1119b0576efc7f6@google.com> From: Eric Dumazet Message-ID: <7ea5ea14-718c-6845-32d8-f8bc862949a1@gmail.com> Date: Fri, 28 Sep 2018 10:06:26 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <000000000000c1119b0576efc7f6@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/28/2018 08:05 AM, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:    100811936f89 bpf: test_bpf: add init_net to dev for flow_d.. > git tree:       bpf-next > console output: https://syzkaller.appspot.com/x/log.txt?x=145378e6400000 > kernel config:  https://syzkaller.appspot.com/x/.config?x=443816db871edd66 > dashboard link: https://syzkaller.appspot.com/bug?extid=e662df0ac1d753b57e80 > compiler:       gcc (GCC) 8.0.1 20180413 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > I took a look at this report, I will send a patch series fixing the issues I found in tun driver.