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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 4AF59C00523 for ; Wed, 8 Jan 2020 09:14:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 21FA120705 for ; Wed, 8 Jan 2020 09:14:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727726AbgAHJOt (ORCPT ); Wed, 8 Jan 2020 04:14:49 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:46334 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id 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X-Received: by 2002:a92:d902:: with SMTP id s2mr3175478iln.223.1578474851824; Wed, 08 Jan 2020 01:14:11 -0800 (PST) Date: Wed, 08 Jan 2020 01:14:11 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d47ca7059b9d5016@google.com> Subject: general protection fault in hash_ip4_uadt From: syzbot To: allison@lohutok.net, coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, gregkh@linuxfoundation.org, info@metux.net, jeremy@azazel.net, kadlec@blackhole.kfki.hu, kadlec@netfilter.org, kstewart@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes 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: c101fffc Merge tag 'mlx5-fixes-2020-01-06' of git://git.ke.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=11b2e656e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=f2f3ef188b7e16cf dashboard link: https://syzkaller.appspot.com/bug?extid=0be5fe9e46479a332a4a compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=114d8eb9e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1157d076e00000 The bug was bisected to: commit 23c42a403a9cfdbad6004a556c927be7dd61a8ee Author: Jozsef Kadlecsik Date: Sat Oct 27 13:07:40 2018 +0000 netfilter: ipset: Introduction of new commands and protocol version 7 bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10b5963ee00000 final crash: https://syzkaller.appspot.com/x/report.txt?x=12b5963ee00000 console output: https://syzkaller.appspot.com/x/log.txt?x=14b5963ee00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+0be5fe9e46479a332a4a@syzkaller.appspotmail.com Fixes: 23c42a403a9c ("netfilter: ipset: Introduction of new commands and protocol version 7") 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: 9507 Comm: syz-executor675 Not tainted 5.5.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hash_ip4_uadt+0x1f5/0x7a0 net/netfilter/ipset/ip_set_hash_ip.c:108 Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 10 05 00 00 48 89 da 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec RSP: 0018:ffffc90001ec7190 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff86793b82 RDI: ffff888091ab98f4 RBP: ffffc90001ec72b8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a4b87b00 R13: ffffc90001ec7320 R14: 0000000000000002 R15: 000000009b000000 FS: 0000000000e7e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000446 CR3: 000000008e30e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_set_utest+0x55b/0x890 net/netfilter/ipset/ip_set_core.c:1867 nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563 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: 0033:0x440af9 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:00007ffe6e1212b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440af9 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005 RBP: 00000000006cb018 R08: 0000000000000014 R09: 00000000004002c8 R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000402380 R13: 0000000000402410 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 3e5ca24b710cd584 ]--- RIP: 0010:hash_ip4_uadt+0x1f5/0x7a0 net/netfilter/ipset/ip_set_hash_ip.c:108 Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 10 05 00 00 48 89 da 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec RSP: 0018:ffffc90001ec7190 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff86793b82 RDI: ffff888091ab98f4 RBP: ffffc90001ec72b8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a4b87b00 R13: ffffc90001ec7320 R14: 0000000000000002 R15: 000000009b000000 FS: 0000000000e7e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000446 CR3: 000000008e30e000 CR4: 00000000001406f0 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. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches