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=-7.2 required=3.0 tests=FROM_EXCESS_BASE64, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 D1C6BC432C1 for ; Tue, 24 Sep 2019 05:05:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B1EF420872 for ; Tue, 24 Sep 2019 05:05:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2408946AbfIXFFu (ORCPT ); Tue, 24 Sep 2019 01:05:50 -0400 Received: from mga05.intel.com ([192.55.52.43]:32387 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2408869AbfIXFFt (ORCPT ); Tue, 24 Sep 2019 01:05:49 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Sep 2019 22:05:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,542,1559545200"; d="scan'208";a="179363733" Received: from msuckert-mobl2.ger.corp.intel.com (HELO btopel-mobl.ger.intel.com) ([10.249.38.73]) by orsmga007.jf.intel.com with ESMTP; 23 Sep 2019 22:05:43 -0700 Subject: Re: general protection fault in xsk_map_update_elem To: Daniel Borkmann , syzbot Cc: ast@kernel.org, bpf@vger.kernel.org, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, magnus.karlsson@intel.com, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com References: <0000000000006a3a2f05933a5c53@google.com> <20190923225050.GA26406@pc-63.home> From: =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= Message-ID: <4aa3445e-7f45-2ef3-4e7c-d4f2df17ba71@intel.com> Date: Tue, 24 Sep 2019 07:05:42 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190923225050.GA26406@pc-63.home> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 2019-09-24 00:50, Daniel Borkmann wrote: > On Mon, Sep 23, 2019 at 08:49:11AM -0700, syzbot wrote: >> Hello, >> >> syzbot found the following crash on: >> >> HEAD commit: b41dae06 Merge tag 'xfs-5.4-merge-7' of git://git.kernel.o.. >> git tree: net-next >> console output: https://syzkaller.appspot.com/x/log.txt?x=130b25ad600000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=dfcf592db22b9132 >> dashboard link: https://syzkaller.appspot.com/bug?extid=491c1b7565ba9069ecae >> compiler: gcc (GCC) 9.0.0 20181231 (experimental) >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155a0c29600000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172bf6d9600000 >> >> The bug was bisected to: >> >> commit 0402acd683c678874df6bdbc23530ca07ea19353 >> Author: Björn Töpel >> Date: Thu Aug 15 09:30:13 2019 +0000 >> >> xsk: remove AF_XDP socket from map when the socket is released > > Bjorn, PTAL, thanks. > I'm on it! Thanks for the poke.