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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 93DF2C433E2 for ; Wed, 16 Sep 2020 04:24:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5DF1521941 for ; Wed, 16 Sep 2020 04:24:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726219AbgIPEYJ (ORCPT ); Wed, 16 Sep 2020 00:24:09 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:33504 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726082AbgIPEYF (ORCPT ); Wed, 16 Sep 2020 00:24:05 -0400 Received: by mail-io1-f70.google.com with SMTP id l22so4152889iol.0 for ; Tue, 15 Sep 2020 21:24:04 -0700 (PDT) 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=FsJrosBct6HeioQ4vw4Oed6LnUjZATq80ngatZYph80=; b=YyPeHfkiMZ3lLs/dzSU7BQtOwkkzYoXlo87oKlZdh5+Jyd9fmj/syNJ54HnPii+z7d GVzRPw/dFwU5d1o1yH0AYH4s7rKIFROseMuIJFS/j/kgcXAXOyB+6haHExzrh7R5fZs9 SeXAhUZQ2ueVmkBO3yHqwLJOjtq40bsGPXQGNyqYD5JFUl8YeIK12rhdpQblrUFNdrCK FrcNIgvgQI0cwl6xiGZUU6SAVtjl1b5alzZSrnAUp9XcYMVsz/+lLWgLtyGnvjD29vmg 0k9Z4w57FMHfDiRubdViFushadd92xS1jLIFoPTxFV/oZLJf5bofwUSOttCxj/uyUJs5 XYVg== X-Gm-Message-State: AOAM530iEbyLjwxiBJ2QbpSX+PBBXKcp1CZNDNxf4Dad3VcaZYwsDnPe K0LJqpc0LOQEB9CZ85T+adNIcjJ0CKDi0flrmiZy79G6m1O9 X-Google-Smtp-Source: ABdhPJyxgDO3mPSpRdj5PWJk7ZMhK47LdqSQD3jL4Pz3xEHr/Rn8rGqvBi1/Xxn1kJa9LMQ3bYnN/Cc641Hk5M0N8rf3t7Gsn/ui MIME-Version: 1.0 X-Received: by 2002:a6b:6e0b:: with SMTP id d11mr17800564ioh.155.1600230244424; Tue, 15 Sep 2020 21:24:04 -0700 (PDT) Date: Tue, 15 Sep 2020 21:24:04 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000047239b05af66a31c@google.com> Subject: Re: general protection fault in unlink_file_vma From: syzbot To: akpm@linux-foundation.org, hdanton@sina.com, linmiaohe@huawei.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel panic: Fatal exception RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffd30630720 R11: 0000000000000000 R12: 000000000118d940 R13: 000000000118d940 R14: ffffffffffffffff R15: 000000000118cfec FS: 0000000001b47940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0033 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001590004 CR3: 0000000021097000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Kernel panic - not syncing: Fatal exception Kernel Offset: disabled Tested on: commit: 8f79400b fix vma_merge gpf git tree: https://github.com/Linmiaohe/linux vma_merge_fix console output: https://syzkaller.appspot.com/x/log.txt?x=153b1d43900000 kernel config: https://syzkaller.appspot.com/x/.config?x=3c5f6ce8d5b68299 dashboard link: https://syzkaller.appspot.com/bug?extid=c5d5a51dcbb558ca0cb5 compiler: gcc (GCC) 10.1.0-syz 20200507