------------[ cut here ]------------ kernel BUG at arch/x86/kvm/x86.c:7210! netlink: 14 bytes leftover after parsing attributes in process `syz-executor2'. TCP: request_sock_TCP: Possible SYN flooding on port 20024. Sending cookies. Check SNMP counters. invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 4477 Comm: syz-executor1 Not tainted 4.14.0-rc7-next-20171103+ #38 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d168c080 task.stack: ffff8801d1850000 RIP: 0010:complete_emulated_mmio+0x5c2/0x6f0 arch/x86/kvm/x86.c:7210 RSP: 0018:ffff8801d1857620 EFLAGS: 00010216 RAX: 0000000000010000 RBX: ffff8801cf240a40 RCX: ffffffff810d39b2 RDX: 000000000000004f RSI: ffffc900023c6000 RDI: ffff8801cf240c78 RBP: ffff8801d1857660 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8744cca0 R12: ffffffff810d33f0 R13: ffff8801cf937000 R14: ffff8801d1b95500 R15: ffff8801cf240a40 FS: 00007f9751394700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f331b9d9000 CR3: 00000001cf41e000 CR4: 00000000001426f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: kvm_arch_vcpu_ioctl_run+0x2e36/0x5d20 arch/x86/kvm/x86.c:7289 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2551 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x452869 RSP: 002b:00007f9751393be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000007580d8 RCX: 0000000000452869 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000018 RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f1658 R13: 00000000ffffffff R14: 00007f97513946d4 R15: 0000000000000007 Code: 01 00 00 00 48 89 df e8 ed d2 48 00 44 89 e6 4c 89 f7 45 31 e4 e8 8f f3 4e 00 45 85 ed 41 0f 94 c4 e9 5f fc ff ff e8 fe 5d 62 00 <0f> 0b e8 17 96 98 00 e9 9c fa ff ff 89 45 c8 e8 0a 96 98 00 8b RIP: complete_emulated_mmio+0x5c2/0x6f0 arch/x86/kvm/x86.c:7210 RSP: ffff8801d1857620 ---[ end trace 666a990289b246e0 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled