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 260FAC33CB7 for ; Sat, 18 Jan 2020 08:25:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 051A22468B for ; Sat, 18 Jan 2020 08:25:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726628AbgARIZK (ORCPT ); Sat, 18 Jan 2020 03:25:10 -0500 Received: from mail-io1-f72.google.com ([209.85.166.72]:55683 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726534AbgARIZK (ORCPT ); Sat, 18 Jan 2020 03:25:10 -0500 Received: by mail-io1-f72.google.com with SMTP id z21so16572517iob.22 for ; Sat, 18 Jan 2020 00:25:09 -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=eHZwoNuhtEt+IN5H0E9oOVaNORve5ghyEKZxVnop2KE=; b=jomRyAMiW0LHcHq7tKVtFv2kQUL+323jkjj0CxDhxh1X1ID1rKt6Qk73hROZn7zUPt n5ATrG34sNW7aNKhQBjRjP+TNLloe6WTpWC9Pghtgy0DJcIiRbCrnPIBOlD1Bds3JaEM dlbKpDVEjQZNXKXJVM6GA4HOedfO8cM22VpHomAUZkayYAte3wIIDyg3bR25i3o/+i7V M79TcajO/gITrMbLTUASEzUTt4mvZeYAsUAvw0qMLJ4sdlrMb7baz7JsrfJEx3Fphy9U qcu1GWTKhk3xMMJUp18buJPT9j69IBkJV7grUdhy4JF0hUnH7Y2Gnvhd5A2ONXkjL0G5 c83Q== X-Gm-Message-State: APjAAAV4+RDYIJ5qoCUK6d9hW23dLU1jbNo0wbXj9e8PKzTcdy3mrUe6 zUr4whEuMjwYMgo0az/4opT00n1y1VB5WnuXmTEepB1ueG+a X-Google-Smtp-Source: APXvYqzsrjGVoG5y5lJ5/4E2LUamp+avO9Dxkr4IB7HUhfB+Zs7cX275sKV7fFXUExj4F0XVF6nUTlVJZlkjJhlWiUqMDe/pJS6E MIME-Version: 1.0 X-Received: by 2002:a92:d7c6:: with SMTP id g6mr2201268ilq.282.1579335909063; Sat, 18 Jan 2020 00:25:09 -0800 (PST) Date: Sat, 18 Jan 2020 00:25:09 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d740e5059c65cbd0@google.com> Subject: general protection fault in nft_parse_register 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" Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 5a9ef194 net: systemport: Fixed queue mapping in internal .. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=156724c9e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7e89bd00623fe71e dashboard link: https://syzkaller.appspot.com/bug?extid=cf23983d697c26c34f60 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+cf23983d697c26c34f60@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: 0 PID: 30417 Comm: syz-executor.2 Not tainted 5.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nla_get_be32 include/net/netlink.h:1483 [inline] RIP: 0010:nft_parse_register+0x24/0x90 net/netfilter/nf_tables_api.c:7576 Code: ff ff ff eb d8 90 55 48 89 e5 41 54 53 48 89 fb e8 91 50 10 fb 48 8d 7b 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 47 8b RSP: 0018:ffffc900087bf380 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000ded3000 RDX: 0000000000000000 RSI: ffffffff8664a4ff RDI: 0000000000000004 RBP: ffffc900087bf390 R08: ffff88805b34a5c0 R09: ffffed1015d2703d R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff8880a072da98 R13: ffffc900087bf498 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f4ff3b5a700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000075c000 CR3: 000000009d23d000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nft_osf_init+0x1b7/0x280 net/netfilter/nft_osf.c:78 nf_tables_newexpr net/netfilter/nf_tables_api.c:2478 [inline] nf_tables_newrule+0xd96/0x2400 net/netfilter/nf_tables_api.c:3086 nfnetlink_rcv_batch+0xf42/0x17a0 net/netfilter/nfnetlink.c:433 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] nfnetlink_rcv+0x3e7/0x460 net/netfilter/nfnetlink.c:561 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 ____sys_sendmsg+0x753/0x880 net/socket.c:2330 ___sys_sendmsg+0x100/0x170 net/socket.c:2384 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417 __do_sys_sendmsg net/socket.c:2426 [inline] __se_sys_sendmsg net/socket.c:2424 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45aff9 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4ff3b59c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4ff3b5a6d4 RCX: 000000000045aff9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000901 R14: 00000000004ca2fe R15: 000000000075bf2c Modules linked in: ---[ end trace a22f7f52a398972c ]--- RIP: 0010:nla_get_be32 include/net/netlink.h:1483 [inline] RIP: 0010:nft_parse_register+0x24/0x90 net/netfilter/nf_tables_api.c:7576 Code: ff ff ff eb d8 90 55 48 89 e5 41 54 53 48 89 fb e8 91 50 10 fb 48 8d 7b 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 47 8b RSP: 0018:ffffc900087bf380 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000ded3000 RDX: 0000000000000000 RSI: ffffffff8664a4ff RDI: 0000000000000004 RBP: ffffc900087bf390 R08: ffff88805b34a5c0 R09: ffffed1015d2703d R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff8880a072da98 R13: ffffc900087bf498 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f4ff3b5a700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6efdf3a518 CR3: 000000009d23d000 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.