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=-0.4 required=3.0 tests=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 81A95C2D0C0 for ; Thu, 26 Dec 2019 21:15:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5300320838 for ; Thu, 26 Dec 2019 21:15:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727066AbfLZVP1 (ORCPT ); Thu, 26 Dec 2019 16:15:27 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:55676 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726806AbfLZVPM (ORCPT ); Thu, 26 Dec 2019 16:15:12 -0500 Received: by mail-io1-f69.google.com with SMTP id z21so17538322iob.22 for ; Thu, 26 Dec 2019 13:15:11 -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=ik7b2s7WamGplClGQL+MsIJ1UBXlFPSq+eZNryAWeT8=; b=Vp8dQeKWjgTEeEnQJdgNVFm09uvvrRqt6aXbseMzrBIi9Q/ND5n0Jm3uN4TC0hRXX8 mdlpbqsmdGLW7lbZYpjk7BavgfFWaLpS+69tGf4UtIMZc2bS5yYjrab9u6K/QSeoOMkp k/9i0pKmLco36qks0+T1KpMEsBqJNTnKeRibBliVz5EMT6U7MbsaMVk0uGB4Q0SZnPyn HKczdNLHgW//9jFVPxOxIsj1kRY81oYzRtnsM7qKVN5dZrnp3OMF1bs6yqI8de55XfYn XvXPc4qnycglrQqHH33aNW5ly0gOkNsGgU9mp8Orwdt4hwmXgm693VEXTWxZorhwTJUa WOmg== X-Gm-Message-State: APjAAAVx1QWMa99Bz7A0BIAaNheYOmbNJGsN4dJJ593uv0n1Z38lCyY+ Uetij2S+2UgjyzgMgZWUPFhBSUzMH6w1ayhQhApNe3Zt2Yx3 X-Google-Smtp-Source: APXvYqzOUFxyaFo/BSJwAwjfs5XthFXahdFTkxNZEQ52cHWHlC/OE2bQJTqfvDR4XfcOo9H+0+Vleg+DKMe5Auvniu5xQQcQpq3m MIME-Version: 1.0 X-Received: by 2002:a92:d80f:: with SMTP id y15mr41770448ilm.225.1577394911048; Thu, 26 Dec 2019 13:15:11 -0800 (PST) Date: Thu, 26 Dec 2019 13:15:11 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000057fd27059aa1dfca@google.com> Subject: general protection fault in xt_rateest_tg_checkentry From: syzbot To: coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@netfilter.org, 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: 46cf053e Linux 5.5-rc3 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11775799e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ed9d672709340e35 dashboard link: https://syzkaller.appspot.com/bug?extid=d7358a458d8a81aee898 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13713ec1e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1272ba49e00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+d7358a458d8a81aee898@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: 9188 Comm: syz-executor670 Not tainted 5.5.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:net_generic include/net/netns/generic.h:45 [inline] RIP: 0010:xt_rateest_tg_checkentry+0x11d/0xb40 net/netfilter/xt_RATEEST.c:109 Code: d9 f2 0d fb 45 84 f6 0f 84 08 07 00 00 e8 8b f1 0d fb 49 8d bd 68 13 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f4 08 00 00 4d 8b ad 68 13 00 00 e8 cd 29 fa fa RSP: 0018:ffffc90001df7788 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffc90001df7ae8 RCX: ffffffff8667437e RDX: 000000000000026d RSI: ffffffff86673c65 RDI: 0000000000001368 RBP: ffffc90001df7848 R08: ffff888093e48540 R09: ffffed1015d2703d R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: 000000000000002d R13: 0000000000000000 R14: 0000000000000001 R15: ffffc90001df7820 FS: 0000000001250880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000820 CR3: 000000008f27a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xt_check_target+0x283/0x690 net/netfilter/x_tables.c:1019 check_target net/ipv4/netfilter/arp_tables.c:399 [inline] find_check_entry net/ipv4/netfilter/arp_tables.c:422 [inline] translate_table+0x1005/0x1d70 net/ipv4/netfilter/arp_tables.c:572 do_replace net/ipv4/netfilter/arp_tables.c:977 [inline] do_arpt_set_ctl+0x310/0x640 net/ipv4/netfilter/arp_tables.c:1456 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ip_setsockopt net/ipv4/ip_sockglue.c:1260 [inline] ip_setsockopt+0xdf/0x100 net/ipv4/ip_sockglue.c:1240 udp_setsockopt+0x68/0xb0 net/ipv4/udp.c:2639 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3149 __sys_setsockopt+0x261/0x4c0 net/socket.c:2117 __do_sys_setsockopt net/socket.c:2133 [inline] __se_sys_setsockopt net/socket.c:2130 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:2130 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4414d9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff75392588 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004414d9 RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003 RBP: 00000000006cb018 R08: 0000000000000530 R09: 00000000004002c8 R10: 0000000020000800 R11: 0000000000000246 R12: 0000000000402d60 R13: 0000000000402df0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 6eeb34579322f089 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:net_generic include/net/netns/generic.h:45 [inline] RIP: 0010:xt_rateest_tg_checkentry+0x11d/0xb40 net/netfilter/xt_RATEEST.c:109 Code: d9 f2 0d fb 45 84 f6 0f 84 08 07 00 00 e8 8b f1 0d fb 49 8d bd 68 13 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f4 08 00 00 4d 8b ad 68 13 00 00 e8 cd 29 fa fa RSP: 0018:ffffc90001df7788 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffc90001df7ae8 RCX: ffffffff8667437e RDX: 000000000000026d RSI: ffffffff86673c65 RDI: 0000000000001368 RBP: ffffc90001df7848 R08: ffff888093e48540 R09: ffffed1015d2703d R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: 000000000000002d R13: 0000000000000000 R14: 0000000000000001 R15: ffffc90001df7820 FS: 0000000001250880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000820 CR3: 000000008f27a000 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#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches