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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D03A0C433F5 for ; Fri, 7 Oct 2022 22:08:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229648AbiJGWIZ (ORCPT ); Fri, 7 Oct 2022 18:08:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57480 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229469AbiJGWIX (ORCPT ); Fri, 7 Oct 2022 18:08:23 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6CAAD258B for ; Fri, 7 Oct 2022 15:08:22 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id i21-20020a056e021d1500b002f9e4f8eab7so4734679ila.7 for ; Fri, 07 Oct 2022 15:08:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=3MLPU74F3+6QXZTh1Q2e+ffMXLmh8O9A6adbCsWIvZM=; b=h+rf8ugK8Y8QURrysv96vgfGjN+x4Aqnn76e65+BgcnvkmgZK4YuXx+8J5uhvzdU5f 39A7sR4NJGnesovsfDJmJ1P5kWpeHS32TiL29HSs/xyHiMwTWuFSOExfy7kFs8//SD4q nF5j48Wvgii7YYsGxl7lMk8wbwjP8sc59jAqaoXPhQCuoy5AXRyjgDVyhGMdU+CVu9Fe IHYJj+LgHuTed2QRs7/5sEhQDPpR/+6ruwTBZaYq1zwOVkvyuvSLJTxUKffdfSQ8D8Og xtsfxM5mNTXBNHPauDOCYfBlGlBmQaxO2udtmY8Dr5DzCkTHd1PySXOQpj6fnDgfPG3b afkA== X-Gm-Message-State: ACrzQf1bg4qt+UCotVs7a/g612mgp5wZNZ8u+qM02kSr413IIhbI6RdM +F1LQ0AJ78PDnTn8b2O8gqo3k7RegfL0Fhqx+vsbcLTi97Nu X-Google-Smtp-Source: AMsMyM4rH+FKGccUJ4CIIG5AIA9SpJMi9/O5BpcI21Jrn8IuicbbBHVI6C+JFM4YFp9t6GVA/uE3aF45zbzLjNQGVKCL68ohr2WE MIME-Version: 1.0 X-Received: by 2002:a05:6602:2dd5:b0:6a2:38e6:eaad with SMTP id l21-20020a0566022dd500b006a238e6eaadmr3289919iow.144.1665180502019; Fri, 07 Oct 2022 15:08:22 -0700 (PDT) Date: Fri, 07 Oct 2022 15:08:22 -0700 In-Reply-To: <000000000000495a9305e9dea876@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004f5d5205ea790cf0@google.com> Subject: Re: [syzbot] WARNING in change_pte_range From: syzbot To: akpm@linux-foundation.org, david@redhat.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, namit@vmware.com, peterx@redhat.com, rppt@kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk 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 b1f9e876862d8f7176299ec4fb2108bc1045cbc8 Author: Peter Xu Date: Fri May 13 03:22:56 2022 +0000 mm/uffd: enable write protection for shmem & hugetlbfs bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=108e8fb8880000 start commit: 511cce163b75 Merge tag 'net-6.0-rc8' of git://git.kernel.o.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=128e8fb8880000 console output: https://syzkaller.appspot.com/x/log.txt?x=148e8fb8880000 kernel config: https://syzkaller.appspot.com/x/.config?x=4520785fccee9b40 dashboard link: https://syzkaller.appspot.com/bug?extid=2c2bb573a9524a95e787 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ecac35080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15668b38880000 Reported-by: syzbot+2c2bb573a9524a95e787@syzkaller.appspotmail.com Fixes: b1f9e876862d ("mm/uffd: enable write protection for shmem & hugetlbfs") For information about bisection process see: https://goo.gl/tpsmEJ#bisection