skbuff: skb_over_panic: text:ffffffff834acdd5 len:56 put:8 head:ffff8801d343e780 data:ffff8801d343e810 tail:0xc8 end:0xc0 dev:ip6tnl0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 4972 Comm: blkid Not tainted 4.4.133-g3f51ea2 #49
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d4389800 task.stack: ffff8801d6998000
RIP: 0010:[<ffffffff838947ac>]  [<ffffffff838947ac>] skb_panic+0x166/0x168 net/core/skbuff.c:100
RSP: 0018:ffff8801db307990  EFLAGS: 00010282
RAX: 0000000000000085 RBX: ffff8800992b9280 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8125d0d9 RDI: ffff8801d438a0dc
RBP: ffff8801db3079f8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8801d7bf5500
R13: ffff8801d343e810 R14: 00000000000000c8 R15: 00000000000000c0
FS:  00007fe4bedb1740(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe4be62a330 CR3: 00000001d1b07000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d343e810 00000000000000c8 00000000000000c0 ffff8801d7bf5500
 0000000000000024 ffffffff83ec4520 ffffffff834acdd5 000000080000000a
 ffff8800992b9280 ffffffff834acdd5 ffff8801d343e840 0000000000000008
Call Trace:
 <IRQ> 
 [<ffffffff838947f4>] skb_over_panic net/core/skbuff.c:109 [inline]
 [<ffffffff838947f4>] skb_put.cold.72+0x23/0x23 net/core/skbuff.c:1362
 [<ffffffff834acdd5>] mld_newpack+0x8b5/0xc80 net/ipv6/mcast.c:1594
 [<ffffffff834ad439>] add_grhead.isra.32+0x299/0x370 net/ipv6/mcast.c:1677
 [<ffffffff834b0a06>] add_grec+0xbc6/0xe00 net/ipv6/mcast.c:1798
 [<ffffffff834b1460>] mld_send_cr net/ipv6/mcast.c:1924 [inline]
 [<ffffffff834b1460>] mld_ifc_timer_expire+0x340/0x740 net/ipv6/mcast.c:2430
 [<ffffffff8129090c>] call_timer_fn+0x18c/0x870 kernel/time/timer.c:1185
 [<ffffffff81291632>] __run_timers kernel/time/timer.c:1261 [inline]
 [<ffffffff81291632>] run_timer_softirq+0x642/0xb90 kernel/time/timer.c:1444
 [<ffffffff838c442c>] __do_softirq+0x22c/0xa1a kernel/softirq.c:273
 [<ffffffff8113f79d>] invoke_softirq kernel/softirq.c:350 [inline]
 [<ffffffff8113f79d>] irq_exit+0x10d/0x140 kernel/softirq.c:391
 [<ffffffff838c3b91>] exiting_irq arch/x86/include/asm/apic.h:653 [inline]
 [<ffffffff838c3b91>] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:926
 [<ffffffff838c2ad0>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:741
 <EOI> 
 [<ffffffff81c52f5d>] spin_unlock_irqrestore include/linux/spinlock.h:362 [inline]
 [<ffffffff81c52f5d>] avc_reclaim_node security/selinux/avc.c:543 [inline]
 [<ffffffff81c52f5d>] avc_alloc_node+0x28d/0x3d0 security/selinux/avc.c:561
 [<ffffffff81c53ba8>] avc_insert security/selinux/avc.c:672 [inline]
 [<ffffffff81c53ba8>] avc_compute_av+0x178/0x610 security/selinux/avc.c:978
 [<ffffffff81c557b3>] avc_has_perm_noaudit+0x323/0x450 security/selinux/avc.c:1114
 [<ffffffff81c5ef99>] selinux_inode_permission+0x269/0x480 security/selinux/hooks.c:2902
 [<ffffffff81c4c4d9>] security_inode_permission+0xb9/0x100 security/security.c:600
 [<ffffffff8153bc23>] __inode_permission2+0x93/0x240 fs/namei.c:425
 [<ffffffff8153be2f>] inode_permission2+0x2f/0x110 fs/namei.c:475
 [<ffffffff815494ac>] may_lookup fs/namei.c:1665 [inline]
 [<ffffffff815494ac>] link_path_walk+0x18c/0x1710 fs/namei.c:1929
 [<ffffffff8154b964>] path_openat+0x1a4/0x3a10 fs/namei.c:3358
 [<ffffffff81551ee7>] do_filp_open+0x197/0x270 fs/namei.c:3393
 [<ffffffff8151b52c>] do_sys_open+0x31c/0x610 fs/open.c:1038
 [<ffffffff8151b84d>] SYSC_open fs/open.c:1056 [inline]
 [<ffffffff8151b84d>] SyS_open+0x2d/0x40 fs/open.c:1051
 [<ffffffff838c0f65>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: 2b 4b c6 fd 4c 8b 4d b8 8b 4b 78 41 54 48 c7 c7 60 40 ec 83 44 8b 45 d4 41 57 48 8b 55 c8 41 56 48 8b 75 c0 41 55 e8 7d 08 b8 fd <0f> 0b e8 7d cb ab fd 4c 8b 65 08 e8 d4 34 c6 fd 48 c7 c1 e0 44 
RIP  [<ffffffff838947ac>] skb_panic+0x166/0x168 net/core/skbuff.c:100
 RSP <ffff8801db307990>
---[ end trace 29662ba9d3835a64 ]---