IPv6: NLM_F_REPLACE set, but no existing node found! BUG: unable to handle kernel paging request at 000000009dbe6833 IP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 Oops: 0002 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 3409 Comm: syz-executor7 Not tainted 4.15.0-rc2-next-20171206+ #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 RSP: 0018:ffff88019325f5a0 EFLAGS: 00010046 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8801c3a96180 RSI: 0000000000000000 RDI: ffff8801c3a96a04 RBP: ffff88019325f698 R08: 0000000000000000 R09: 0000000000000000 R10: 1ffff1003264beba R11: 0000000000000000 R12: 1ffff1003264beba R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 FS: 00007fb0d5387700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 00000001c93e4000 CR4: 00000000001426e0 Call Trace: rcu_lock_acquire include/linux/rcupdate.h:244 [inline] srcu_read_lock include/linux/srcu.h:160 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7067 [inline] vcpu_run arch/x86/kvm/x86.c:7146 [inline] kvm_arch_vcpu_ioctl_run+0x1b96/0x5c60 arch/x86/kvm/x86.c:7314 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2555 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/0x96 RIP: 0033:0x452a39 RSP: 002b:00007fb0d5386c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000015 RBP: 0000000000000218 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f02e0 R13: 00000000ffffffff R14: 00007fb0d53876d4 R15: 0000000000000000 Code: df 48 89 f9 48 c1 e9 03 0f b6 0c 01 48 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 fe 02 00 00 c7 82 84 08 00 00 01 00 00 00 06 01 00 00 65 8b 05 a1 c9 aa 7e 89 c0 48 0f a3 05 27 8a 08 RIP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 RSP: ffff88019325f5a0 CR2: fffffffffffffff8 ---[ end trace 81e2555996904287 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..