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 EE873C43460 for ; Sun, 2 May 2021 16:55:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC7E261353 for ; Sun, 2 May 2021 16:55:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232166AbhEBQ4K (ORCPT ); Sun, 2 May 2021 12:56:10 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:50009 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229678AbhEBQ4J (ORCPT ); Sun, 2 May 2021 12:56:09 -0400 Received: by mail-io1-f72.google.com with SMTP id i204-20020a6bb8d50000b02903f266b8e1c5so1689061iof.16 for ; Sun, 02 May 2021 09:55:16 -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:message-id:subject:from:to; bh=eP4mQN7C2zr3b/3zqQgZ9cfbl/yTznWZNvkQ6osR27g=; b=M72BOKPWrAWPhmYgtirCtdVJUKvhOPQc9pur3/FL2Gfz0AqXbPlnOnB2FxZHWnBxxc rgOjVMgGgmvNCAPsxkGXKNTVZX96ZJE5U2P05Vs8RttLTr3oEDb8AAqL7hwOSjBd7QYs 2D+QrITG8dyCnCJ4wFwG2akpU51qbQmSpFAj8KdBOVvVDWxxWl+P4UuaSp0YxxczWgLd 9t2K6QaxjHAtxMcLJYZTuDOYSjFCdwrQG3Z1m4Fwaf862mYHNmYp6FeG/JYXWt31BxxN WN+bfHx9I4b0zoxCUXAFEidUnJAn/j8Uv8ZDpfhPz/pvAu3bIoI369WuA1UzUJV1+Zma zINg== X-Gm-Message-State: AOAM530llmjes3A+hXPwGEtlw3rxNj8ytm1vtvF/h7/IhtsYRCOfOCiY sSH+hoVR5W4od9KyTNgjsyU3v3jLHz4iClWx4gVb+u1lfxN/ X-Google-Smtp-Source: ABdhPJxBrNGUkDeYHa62khBXomhZqIUnBPjzWZ7xG2jJOLOMH5qryQQiguVNne0zB5KXxNOu50vnwiFl1sc4uJiZ9JzH7PX8iisn MIME-Version: 1.0 X-Received: by 2002:a5d:9659:: with SMTP id d25mr11877096ios.146.1619974516550; Sun, 02 May 2021 09:55:16 -0700 (PDT) Date: Sun, 02 May 2021 09:55:16 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009aaf5905c15bb5f0@google.com> Subject: [syzbot] general protection fault in do_swap_page (2) From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: e3d35712 Add linux-next specific files for 20210423 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=14b953f5d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=e370221d7500b26a dashboard link: https://syzkaller.appspot.com/bug?extid=9bedf8ef6e51e0bb3401 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9bedf8ef6e51e0bb3401@syzkaller.appspotmail.com get_swap_device: Bad swap file entry 3fffa5f80000a general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 8451 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:do_swap_page+0x9fa/0x2430 mm/memory.c:3349 Code: e8 bb a2 6d 07 e9 cb fa ff ff e8 01 c1 cb ff 48 8b 7c 24 10 e8 97 b7 0a 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 60 17 00 00 48 8b 18 31 ff 81 e3 00 10 00 00 48 RSP: 0000:ffffc900015ffc78 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880124035b0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffffffff81b3f0de RDI: 0000000000000003 RBP: ffffc900015ffd88 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81b3f09f R11: 0000000000000000 R12: 0000000000000000 R13: ffff888029ea0e00 R14: ffff888024424040 R15: 0000000000000000 FS: 000000c00027c490(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001000000 CR3: 0000000014778000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: handle_pte_fault mm/memory.c:4371 [inline] __handle_mm_fault+0x1b8b/0x5150 mm/memory.c:4502 handle_mm_fault+0x1bc/0x7e0 mm/memory.c:4600 do_user_addr_fault+0x483/0x1210 arch/x86/mm/fault.c:1390 handle_page_fault arch/x86/mm/fault.c:1475 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1531 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577 RIP: 0033:0x420a5d Code: 0c 48 ff c7 d1 eb 48 83 c6 08 0f 1f 00 48 83 ff 08 0f 8d f9 00 00 00 48 39 f1 0f 86 f0 00 00 00 0f ba e3 00 73 db 4c 8d 04 16 <4d> 8b 00 4d 85 c0 74 cf 48 89 7c 24 40 4c 89 44 24 38 48 89 74 24 RSP: 002b:000000c0002bde18 EFLAGS: 00010203 RAX: 00007fafa7949000 RBX: 0000000000000009 RCX: 0000000000040000 RDX: 0000000000fcd820 RSI: 00000000000327e0 RDI: 0000000000000004 RBP: 000000c0002bde68 R08: 0000000001000000 R09: 0000000000000045 R10: 0000000001880e68 R11: 0000000000000053 R12: 0000000000000003 R13: 000000c000082780 R14: 000000000000000f R15: 0000000000000c96 Modules linked in: ---[ end trace bfcda609218a3121 ]--- RIP: 0010:do_swap_page+0x9fa/0x2430 mm/memory.c:3349 Code: e8 bb a2 6d 07 e9 cb fa ff ff e8 01 c1 cb ff 48 8b 7c 24 10 e8 97 b7 0a 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 60 17 00 00 48 8b 18 31 ff 81 e3 00 10 00 00 48 RSP: 0000:ffffc900015ffc78 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880124035b0 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffffffff81b3f0de RDI: 0000000000000003 RBP: ffffc900015ffd88 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81b3f09f R11: 0000000000000000 R12: 0000000000000000 R13: ffff888029ea0e00 R14: ffff888024424040 R15: 0000000000000000 FS: 000000c00027c490(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000c7c010 CR3: 0000000014778000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.