IPv6: NLM_F_REPLACE set, but no existing node found!
Kernel panic - not syncing: corrupted stack end detected inside scheduler

CPU: 1 PID: 4750 Comm: syz-executor1 Not tainted 4.15.0-rc3-next-20171214+ #67
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xe9/0x14b lib/dump_stack.c:53
 panic+0x10e/0x2f8 kernel/panic.c:183
 schedule_debug kernel/sched/core.c:3191 [inline]
 __schedule+0xa85/0xaf0 kernel/sched/core.c:3300
 schedule+0x2e/0x90 kernel/sched/core.c:3435
 freezable_schedule include/linux/freezer.h:172 [inline]
 futex_wait_queue_me+0xe9/0x1a0 kernel/futex.c:2476
 futex_wait+0x11f/0x2a0 kernel/futex.c:2591
 do_futex+0x5a0/0xe80 kernel/futex.c:3473
 SYSC_futex kernel/futex.c:3533 [inline]
 SyS_futex+0x159/0x1e0 kernel/futex.c:3501
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f027a1bdce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000007580d8 RCX: 0000000000452a39
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000758100
RBP: 00000000000003f2 R08: 00000000000003f2 R09: 00000000007580d8
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006f3f50
R13: 00000000ffffffff R14: 00007f027a1be6d4 R15: 0000000000000002
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..