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=-3.7 required=3.0 tests=BAYES_00,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 11813C433FE for ; Sat, 18 Sep 2021 19:58:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EC0FC61051 for ; Sat, 18 Sep 2021 19:58:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239004AbhIRT7g (ORCPT ); Sat, 18 Sep 2021 15:59:36 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:56967 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232331AbhIRT7b (ORCPT ); Sat, 18 Sep 2021 15:59:31 -0400 Received: by mail-io1-f70.google.com with SMTP id z71-20020a6bc94a000000b005d09bfe2668so27622154iof.23 for ; Sat, 18 Sep 2021 12:58:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=ivh/Frp5TC2qWcIkr/BnJSK/kFt1+2bIZQL24hbwT64=; b=anrwkpRpF6rVEdLutjth5D/mCTvXyVsdurLDgGhhInOOQ+roACfOAzz8pYzWRKLZkN HL4E2ckecF24BtJ/mPo2Z84zdrExYEWKuOkA16AHEKg9cJDUi5a8SnaAB9q4c0bW9vXX g3socmve0CP6cghM3hxnUxK4SXXot795le4cX1D73vcf/z4Ou1FM8xHQDMlZwTHLARHL KwKezgcyWyVW2RS1WYMAfleUnUXeuymn/8JHK9fdCkZYTGwkf/xWxWihndZsvnM/WDg9 cQV4QtRRVn0mm8cbq34LqdlpYstM1AYZhsvpE+cnFmzdxdBqK3kE47vgwyRjZQIStP9U INbw== X-Gm-Message-State: AOAM53141ORRz/IXiE4hEW8J2AH330UY1qqvzWv4I1rtm1e/ZWjrj3tc c0G9395zdbIVWFlEoyBrLzJXldzYvMZ6wWBKDbEHz5IdZSfl X-Google-Smtp-Source: ABdhPJzgs6ARQpi5xrqA8t2HeKzas+2uSX6PdE7YGSaYgxMRzN33nmneQgyfAzSK2loGTkvCoPd75fBvS4XdGFR4xW6TboTeWQui MIME-Version: 1.0 X-Received: by 2002:a6b:610a:: with SMTP id v10mr6389678iob.167.1631995087634; Sat, 18 Sep 2021 12:58:07 -0700 (PDT) Date: Sat, 18 Sep 2021 12:58:07 -0700 In-Reply-To: <000000000000fe7dd005cc2d77c0@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000079478a05cc4a7730@google.com> Subject: Re: [syzbot] kernel BUG in vmf_insert_pfn_prot From: syzbot To: airlied@linux.ie, christian.koenig@amd.com, daniel.vetter@ffwll.ch, daniel.vetter@intel.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linaro-mm-sig-owner@lists.linaro.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, sumit.semwal@linaro.org, syzkaller-bugs@googlegroups.com, tzimmermann@suse.de Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 8b93d1d7dbd578fd296e70008b29c0f62d09d7cb Author: Daniel Vetter Date: Thu Aug 12 13:14:10 2021 +0000 drm/shmem-helper: Switch to vmf_insert_pfn bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1277054f300000 start commit: 9004fd387338 Add linux-next specific files for 20210917 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=1177054f300000 console output: https://syzkaller.appspot.com/x/log.txt?x=1677054f300000 kernel config: https://syzkaller.appspot.com/x/.config?x=45d5ac72f31f29f3 dashboard link: https://syzkaller.appspot.com/bug?extid=2d4f8693f438d2bd4bdb syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13ad5527300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13beef77300000 Reported-by: syzbot+2d4f8693f438d2bd4bdb@syzkaller.appspotmail.com Fixes: 8b93d1d7dbd5 ("drm/shmem-helper: Switch to vmf_insert_pfn") For information about bisection process see: https://goo.gl/tpsmEJ#bisection