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 A8388C433EF for ; Sat, 25 Jun 2022 17:36:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233213AbiFYRgR (ORCPT ); Sat, 25 Jun 2022 13:36:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231904AbiFYRgQ (ORCPT ); Sat, 25 Jun 2022 13:36:16 -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 84F8E13E82 for ; Sat, 25 Jun 2022 10:36:15 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id p12-20020a056e02144c00b002d196a4d73eso3570652ilo.18 for ; Sat, 25 Jun 2022 10:36:15 -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=eIfDnU1wcUJrSBEaf37xz6SytaNvtLOO27LtM0eI0Gs=; b=byDX086q+wHSexzVNphiRsN8W9EyUoPdny+bvBTeqHJmHGWeoSXOj+Tv3C2rfeoMLZ qSDa4Zn9ApApeBBdxLcNnitDk33Xu6lq0nBF6JyUWn8ohEf/1vhR0jtDu/VJaxuH3j+V RDLurUVq4rAeNzAzW/kgNzz2yWXSV5IfpaJGoU5nGbb+arQoR/xRXEk6CdWqf1yrULcR 4wZfwyyqT4Pi6dI+PAtJWqgF/n40LDqmo7n2M65fEWU/xqUFo26Fhi9CJqYksNAHXZ04 7tRTMPqECkxa8C0rWHRldCJ+uoAY2QvMCyX6mm9HlmWFNgR9PQ7emYc8ZRDjsj6hfKWA 7hxg== X-Gm-Message-State: AJIora9dYfZh7pIIOU2WrKu4/qJkr00Hw1A06p+r1lW9Og/ovkgxt+Oq EkUCralYk1uJdD51yIVytFB4WFi910Bkrbpw4xbclmz70wmN X-Google-Smtp-Source: AGRyM1udwQL0V8PZ11Qo/u3lqs2CTyzF5RqHEo+jbRAx1S9MRnSO24DLB+i8Wp0nZ4Rx9OHKkykykv0Ech5RP/SYT0J7PtJfyWHf MIME-Version: 1.0 X-Received: by 2002:a05:6e02:17c7:b0:2d9:4170:9e80 with SMTP id z7-20020a056e0217c700b002d941709e80mr2600547ilu.26.1656178574903; Sat, 25 Jun 2022 10:36:14 -0700 (PDT) Date: Sat, 25 Jun 2022 10:36:14 -0700 In-Reply-To: <0000000000003189f305e19f5d3e@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a4531805e2491f77@google.com> Subject: Re: [syzbot] KASAN: null-ptr-deref Read in hugepage_vma_check From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, shy828301@gmail.com, syzkaller-bugs@googlegroups.com, willy@infradead.org, zokeefe@google.com 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 0a44ebaaa3f3ecfacd2744467957882eabd92cec Author: Yang Shi Date: Thu Jun 16 17:48:37 2022 +0000 mm: thp: kill transparent_hugepage_active() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=166ba760080000 start commit: 34d1d36073ea Add linux-next specific files for 20220621 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=156ba760080000 console output: https://syzkaller.appspot.com/x/log.txt?x=116ba760080000 kernel config: https://syzkaller.appspot.com/x/.config?x=b24b62d1c051cfc8 dashboard link: https://syzkaller.appspot.com/bug?extid=4d875b4d2e2b60bae9b4 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14097a3ff00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1466c63ff00000 Reported-by: syzbot+4d875b4d2e2b60bae9b4@syzkaller.appspotmail.com Fixes: 0a44ebaaa3f3 ("mm: thp: kill transparent_hugepage_active()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection