netlink: 1 bytes leftover after parsing attributes in process `syz-executor7'.
IPv6: Can't replace route, no match found
IPv6: Can't replace route, no match found
------------[ cut here ]------------
WARNING: CPU: 1 PID: 11081 at net/ipv6/ip6_fib.c:1477 fib6_del+0x947/0xca0 net/ipv6/ip6_fib.c:1477
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 11081 Comm: syz-executor2 Not tainted 4.13.0-rc7+ #58
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 panic+0x1e4/0x417 kernel/panic.c:180
 __warn+0x1c4/0x1d9 kernel/panic.c:541
 report_bug+0x211/0x2d0 lib/bug.c:183
 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:190
 do_trap_no_signal arch/x86/kernel/traps.c:224 [inline]
 do_trap+0x260/0x390 arch/x86/kernel/traps.c:273
 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:310
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:323
 invalid_op+0x1e/0x30 arch/x86/entry/entry_64.S:846
RIP: 0010:fib6_del+0x947/0xca0 net/ipv6/ip6_fib.c:1477
RSP: 0018:ffff8801db3074d8 EFLAGS: 00010206
RAX: ffff8801c21fe1c0 RBX: ffff8801c1ed6000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffff8801db307650 RDI: ffff8801c1ed6064
RBP: ffff8801db3075f0 R08: ffffffff86df1658 R09: 0000000000000002
R10: ffff8801db3074b8 R11: 1ffff1003843fe93 R12: dffffc0000000000
R13: ffff8801db307650 R14: ffff88019eabe180 R15: 1ffff1003b660ea5
 __ip6_del_rt+0xc7/0x120 net/ipv6/route.c:2136
 ip6_del_rt+0x132/0x1a0 net/ipv6/route.c:2149
 ip6_link_failure+0x244/0x380 net/ipv6/route.c:1359
 dst_link_failure include/net/dst.h:454 [inline]
 ndisc_error_report+0xae/0x180 net/ipv6/ndisc.c:682
 neigh_invalidate+0x225/0x530 net/core/neighbour.c:883
 neigh_timer_handler+0x883/0xca0 net/core/neighbour.c:969
 call_timer_fn+0x233/0x830 kernel/time/timer.c:1281
 expire_timers kernel/time/timer.c:1320 [inline]
 __run_timers+0x7fd/0xb90 kernel/time/timer.c:1620
 run_timer_softirq+0x4c/0xb0 kernel/time/timer.c:1646
 __do_softirq+0x2f5/0xba3 kernel/softirq.c:284
 invoke_softirq kernel/softirq.c:364 [inline]
 irq_exit+0x1cc/0x200 kernel/softirq.c:405
 exiting_irq arch/x86/include/asm/apic.h:638 [inline]
 smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:1044
 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:702
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:324 [inline]
RIP: 0010:PageCompound include/linux/page-flags.h:160 [inline]
RIP: 0010:page_mapcount include/linux/mm.h:573 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1267 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1347 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1376 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1397 [inline]
RIP: 0010:unmap_page_range+0x1307/0x2160 mm/memory.c:1418
RSP: 0018:ffff8801c636ec60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: 1ffffd4000d083a0 RBX: 00007f71433df000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffed0038c6dd80
RBP: ffff8801c636f0c0 R08: 0000000000000001 R09: 1ffff10038c6dd1a
R10: ffff8801c636e808 R11: 0000000000000001 R12: ffffea0006841d00
R13: dffffc0000000000 R14: ffff8801d0264ef0 R15: ffffea0006841d00
 </IRQ>
 unmap_single_vma+0x15f/0x2d0 mm/memory.c:1463
 unmap_vmas+0xf1/0x1b0 mm/memory.c:1493
 exit_mmap+0x237/0x470 mm/mmap.c:2994
 __mmput kernel/fork.c:904 [inline]
 mmput+0x223/0x6e0 kernel/fork.c:926
 exit_mm kernel/exit.c:544 [inline]
 do_exit+0x989/0x1b10 kernel/exit.c:852
 do_group_exit+0x149/0x400 kernel/exit.c:969
 get_signal+0x7e8/0x17e0 kernel/signal.c:2334
 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:808
 exit_to_usermode_loop+0x224/0x300 arch/x86/entry/common.c:157
 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
 syscall_return_slowpath+0x3a7/0x450 arch/x86/entry/common.c:263
 entry_SYSCALL_64_fastpath+0xbc/0xbe
RIP: 0033:0x4512e9
RSP: 002b:00007f71430bccf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 0000000000718170 RCX: 00000000004512e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000718170
RBP: 0000000000718150 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000a6f7ef R14: 00007f71430bd9c0 R15: 0000000000000002
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..