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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 020FAC282C3 for ; Tue, 22 Jan 2019 20:29:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D1ECA20870 for ; Tue, 22 Jan 2019 20:29:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726682AbfAVU3F (ORCPT ); Tue, 22 Jan 2019 15:29:05 -0500 Received: from mail-it1-f197.google.com ([209.85.166.197]:38299 "EHLO mail-it1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726143AbfAVU3F (ORCPT ); Tue, 22 Jan 2019 15:29:05 -0500 Received: by mail-it1-f197.google.com with SMTP id m128so14205360itd.3 for ; Tue, 22 Jan 2019 12:29:04 -0800 (PST) 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=Q9cpvbPwxLlHWgAj1QTgyW8ET3cYp4gShFpDaXuxYZ4=; b=lTF/W4ubWVsjS5CdUBp3BQvAl3ow0XMZJHMRvbnXE1rQDB5R6SPBiglP5tv+8nslJV Q2qAk+3/UehQF3l1UsPk6yfA2NACKmGvbmox1PwtArJ13h7FEfm5fX2ehW2BjpdaeQFX uRsUO/hMPsbi3mGnlopagyC+Zcj0ON/n2xN8kkqBvGoM9ZGlNIlxL/RVcI22+Wt3ehjH lQMyvRrzmhNznFXT1tJ5TdSIHipw1VgtD3ZOhCEoMfikTT3E4Xd8xZB5yLl5VzD87lEP Fi/mTtUWPb7m8ZbrJwluRLAsZS2jbTraYse1SxFyiTbr2n2ggoNZZ6NLaXHVkLPC6an/ pzHQ== X-Gm-Message-State: AHQUAuaRmTBCrXQ7FIwMeIPem4hULNyYf2gSabi69XQDdLQ/Z/rIzAeB N6lwm4OPa5rsbiYM+Oa0yKOpQp31IYSmemZwnJ9/0EUByESX X-Google-Smtp-Source: ALg8bN7t6+4mSn81XQAA9PfnM2ejbXIQ+sRWLGzT/xRFmQhqFM6mtNhORaNlOJjxtqkaVuxGpxb/8C7Z8d47iCb7FK+KOUqjJOsM MIME-Version: 1.0 X-Received: by 2002:a24:4e83:: with SMTP id r125mr36121ita.6.1548188943968; Tue, 22 Jan 2019 12:29:03 -0800 (PST) Date: Tue, 22 Jan 2019 12:29:03 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000cf22a058011d494@google.com> Subject: general protection fault in nf_ct_gre_keymap_flush From: syzbot To: coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@blackhole.kfki.hu, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 5b22549b8c00 Add linux-next specific files for 20190122 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=11e6d908c00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9d3270828ee2eb2f dashboard link: https://syzkaller.appspot.com/bug?extid=fcee88b2d87f0539dfe9 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+fcee88b2d87f0539dfe9@syzkaller.appspotmail.com kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 25155 Comm: syz-executor3 Not tainted 5.0.0-rc3-next-20190122 #17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nf_ct_gre_keymap_flush+0xb9/0x2f0 net/netfilter/nf_conntrack_proto_gre.c:65 Code: 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 0f 85 2b 02 00 00 4c 8b bb f8 16 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 fc 01 00 00 4c 3b bd 68 ff ff ff 4d 8b 27 0f 84 RSP: 0018:ffff88804b687698 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88804a121840 RCX: 0000000000000000 RDX: 1ffffffff146dfc2 RSI: 0000000000000004 RDI: ffff88804b687600 RBP: ffff88804b687748 R08: 1ffff110096d0ec0 R09: ffffed10096d0ec1 R10: ffffed10096d0ec0 R11: 0000000000000003 R12: dffffc0000000000 R13: ffff88804b687858 R14: ffff88804a122f38 R15: 0000000000000000 FS: 00007f1b18c8e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000070a158 CR3: 00000000a5f04000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nf_conntrack_proto_pernet_fini+0x16/0x1a net/netfilter/nf_conntrack_proto.c:617 nf_conntrack_cleanup_net_list+0x204/0x330 net/netfilter/nf_conntrack_core.c:2183 nf_conntrack_cleanup_net+0x1c5/0x270 net/netfilter/nf_conntrack_core.c:2156 nf_conntrack_pernet_init net/netfilter/nf_conntrack_standalone.c:1122 [inline] nf_conntrack_pernet_init+0xc3f/0xf00 net/netfilter/nf_conntrack_standalone.c:1091 ops_init+0x109/0x5d0 net/core/net_namespace.c:129 setup_net+0x38f/0x940 net/core/net_namespace.c:314 copy_net_ns+0x2ae/0x4b0 net/core/net_namespace.c:437 create_new_namespaces+0x4ce/0x930 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xc2/0x200 kernel/nsproxy.c:206 ksys_unshare+0x6d7/0xfb0 kernel/fork.c:2550 __do_sys_unshare kernel/fork.c:2618 [inline] __se_sys_unshare kernel/fork.c:2616 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:2616 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1b18c8dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000458099 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1b18c8e6d4 R13: 00000000004c6d60 R14: 00000000004dc280 R15: 00000000ffffffff Modules linked in: ---[ end trace 88887a1b76d6af3e ]--- RIP: 0010:nf_ct_gre_keymap_flush+0xb9/0x2f0 net/netfilter/nf_conntrack_proto_gre.c:65 Code: 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 0f 85 2b 02 00 00 4c 8b bb f8 16 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 fc 01 00 00 4c 3b bd 68 ff ff ff 4d 8b 27 0f 84 RSP: 0018:ffff88804b687698 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88804a121840 RCX: 0000000000000000 RDX: 1ffffffff146dfc2 RSI: 0000000000000004 RDI: ffff88804b687600 RBP: ffff88804b687748 R08: 1ffff110096d0ec0 R09: ffffed10096d0ec1 R10: ffffed10096d0ec0 R11: 0000000000000003 R12: dffffc0000000000 R13: ffff88804b687858 R14: ffff88804a122f38 R15: 0000000000000000 FS: 00007f1b18c8e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000070a158 CR3: 00000000a5f04000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with syzbot.