skbuff: skb_over_panic: text:00000000e7d73cd2 len:196 put:20 head:00000000b8218f5e data:000000002650976f tail:0xd4 end:0xc0 dev:lo
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3165 Comm: syz-executor0 Not tainted 4.15.0-rc2-next-20171208+ #63
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_panic+0x15c/0x1f0 net/core/skbuff.c:100
RSP: 0000:ffff8801db307508 EFLAGS: 00010286
RAX: 0000000000000082 RBX: ffff8801c4c3c040 RCX: 0000000000000000
RDX: 0000000000000082 RSI: 1ffff1003b660e61 RDI: ffffed003b660e95
RBP: ffff8801db307570 R08: 1ffff1003b660e23 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85bd70a0
R13: ffffffff84759072 R14: 0000000000000014 R15: ffff8801c54c2280
FS:  0000000001ad4940(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020d09f80 CR3: 00000001c5ab6000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 skb_over_panic net/core/skbuff.c:109 [inline]
 skb_put+0x181/0x1c0 net/core/skbuff.c:1694
 add_grhead.isra.24+0x42/0x3b0 net/ipv6/mcast.c:1695
 add_grec+0xa55/0x1060 net/ipv6/mcast.c:1817
 mld_send_cr net/ipv6/mcast.c:1903 [inline]
 mld_ifc_timer_expire+0x4d2/0x770 net/ipv6/mcast.c:2448
 call_timer_fn+0x23b/0x840 kernel/time/timer.c:1320
 expire_timers kernel/time/timer.c:1357 [inline]
 __run_timers+0x7e1/0xb60 kernel/time/timer.c:1660
 run_timer_softirq+0x4c/0xb0 kernel/time/timer.c:1686
 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285
 invoke_softirq kernel/softirq.c:365 [inline]
 irq_exit+0x1d3/0x210 kernel/softirq.c:405
 exiting_irq arch/x86/include/asm/apic.h:540 [inline]
 smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052
 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:920
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:4044
RSP: 0000:ffff8801c5d4f5f8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff11
RAX: dffffc0000000000 RBX: 0000000000000282 RCX: 0000000000000000
RDX: 1ffffffff0c59759 RSI: ffffffff86344c80 RDI: 0000000000000282
RBP: ffff8801c5d4f618 R08: 0000160000000000 R09: 0000000000000000
R10: ffffffffffffffe8 R11: 0000000000000000 R12: ffff8801c6f4a3c0
R13: 0000000000000000 R14: 00000000000011e6 R15: ffffffff85717140
 lock_is_held include/linux/lockdep.h:437 [inline]
 rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline]
 ___might_sleep+0x35e/0x470 kernel/sched/core.c:6026
 clear_huge_page+0x24f/0x730 mm/memory.c:4582
 __do_huge_pmd_anonymous_page mm/huge_memory.c:570 [inline]
 do_huge_pmd_anonymous_page+0x59c/0x1b00 mm/huge_memory.c:728
 create_huge_pmd mm/memory.c:3816 [inline]
 __handle_mm_fault+0x1b68/0x3dd0 mm/memory.c:4019
 handle_mm_fault+0x38f/0x930 mm/memory.c:4085
 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1429
 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1504
 page_fault+0x4c/0x60 arch/x86/entry/entry_64.S:1243
RIP: 0033:0x439ed7
RSP: 002b:00007ffd395859e8 EFLAGS: 00010202
RAX: 0000000020d09f80 RBX: 0000000000000002 RCX: 000000006cd355ff
RDX: 0000000000000014 RSI: 00000000007601a8 RDI: 0000000020d09f80
RBP: 0000000000000014 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffd395859b0 R11: 0000000000000206 R12: fffffffffffffffe
R13: 0000000020d09f80 R14: 0000000000008792 R15: 0000000000000001
Code: 03 0f b6 04 01 84 c0 74 04 3c 03 7e 20 8b 4b 78 41 57 48 c7 c7 20 69 bd 85 52 56 4c 89 ea 41 50 4c 89 e6 45 89 f0 e8 9c 77 3d fd <0f> 0b 4c 89 4d b8 4c 89 45 c0 48 89 75 c8 48 89 55 d0 e8 3d 50 
RIP: skb_panic+0x15c/0x1f0 net/core/skbuff.c:100 RSP: ffff8801db307508
---[ end trace 4cd648f900d4462d ]---