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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 7ACFDC33C99 for ; Tue, 7 Jan 2020 10:12:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D13120678 for ; Tue, 7 Jan 2020 10:12:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727784AbgAGKMC (ORCPT ); Tue, 7 Jan 2020 05:12:02 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:57025 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726558AbgAGKMC (ORCPT ); Tue, 7 Jan 2020 05:12:02 -0500 Received: by mail-il1-f198.google.com with SMTP id i68so33481976ill.23 for ; Tue, 07 Jan 2020 02:12:01 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=uY0IMSD0dpLD3QQHBJ18OrMq7eBYbFB7tHn+vZdbCpU=; b=WxBxaq4In8FGPz/SPJZJ114N/ClgbGCYEupK/Ti6yV8QKNd13OpcCW5nVIY9oAQOZi ikx+GC7Uk7ta3gziXs03ag4fkMUYTtJo/LtrhKYD8CEH429faBQV5DYEY3tjNKG3LbJ7 qIEfcqmQjFMzS/Vwct0Y2lNLjqNEvz3Qgv7jBNheHCPsUDA+vmCalTEiYg9urs9sh97c hkbErKW2An2OzJE6kTaTNdXuQ1YCB+XsCQEd1DeCt1P7xiHNix6u1Npdq7N1EVWWgVOl bfZIGwq0x1Cvqp6pC8N5pl/mO2oXpCRtEbg5s0qqauAhvlX8sKufyAX0JlOC2YLDN0Jz FLZw== X-Gm-Message-State: APjAAAW9I97lS2XdC0Gj2M/1grpS7A0skm2W49vYOX1EnrhqROwBGtTJ rDvJYqDb6Yyf8ExVVu3ZdG/PvuZXnw8jBhER8kCwsEJqFqd9 X-Google-Smtp-Source: APXvYqwv0/OkCF9+faxbADAvRTX3QIb9FKZF7SgcrbkDTc9kexfy5mcSiu6q64gZKoVVyGS18zybmgeFYRrHU+aAiI+B41Zqko2l MIME-Version: 1.0 X-Received: by 2002:a5d:8cda:: with SMTP id k26mr48129317iot.26.1578391921440; Tue, 07 Jan 2020 02:12:01 -0800 (PST) Date: Tue, 07 Jan 2020 02:12:01 -0800 In-Reply-To: <0000000000004ceb27059b868b57@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cb3c3c059b8a01e3@google.com> Subject: Re: BUG: unable to handle kernel NULL pointer dereference in cfg80211_wext_siwfrag From: syzbot To: astrachan@google.com, davem@davemloft.net, ghartman@google.com, johannes.berg@intel.com, johannes@sipsolutions.net, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, muntsinger@google.com, netdev@vger.kernel.org, schuffelen@google.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit c7cdba31ed8b87526db978976392802d3f93110c Author: Cody Schuffelen Date: Wed Nov 21 03:14:49 2018 +0000 mac80211-next: rtnetlink wifi simulation device bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11cf6885e00000 start commit: d89091a4 macb: Don't unregister clks unconditionally git tree: net final crash: https://syzkaller.appspot.com/x/report.txt?x=13cf6885e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=15cf6885e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=f2f3ef188b7e16cf dashboard link: https://syzkaller.appspot.com/bug?extid=e8a797964a4180eb57d5 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15c85915e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11c02bc1e00000 Reported-by: syzbot+e8a797964a4180eb57d5@syzkaller.appspotmail.com Fixes: c7cdba31ed8b ("mac80211-next: rtnetlink wifi simulation device") For information about bisection process see: https://goo.gl/tpsmEJ#bisection