------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:2192!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3898 Comm: syz-executor7 Not tainted 4.4.135-ge75204c #55
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ba811800 task.stack: ffff8800ba500000
RIP: 0010:[<ffffffff82f3c3fa>]  [<ffffffff82f3c3fa>] skb_copy_and_csum_bits+0x69a/0x7d0 net/core/skbuff.c:2192
RSP: 0018:ffff8801db307260  EFLAGS: 00010206
RAX: ffff8801ba811800 RBX: 00000000368e478c RCX: 1ffff10012f5db29
RDX: 0000000000000100 RSI: ffffffff82f3c3fa RDI: ffff880097aed948
RBP: ffff8801db3072e0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000003c R11: ffff8800978f4bdf R12: 0000000000000000
R13: 0000000000000224 R14: 0000000000000000 R15: ffff880097aed940
FS:  0000000001872940(0063) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe3a6114848 CR3: 00000000a1b6b000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81290a8c ffff8800a0068c04 ffffffff838c5c2c ffffffff8113f8ad
 ffff8800a0068c08 ffff8800978f4968 368e478c0000003c 000001e80000003c
 0000003c0000003c ffff8800a0068b40 0000000000000000 ffff8800b60cf3c0
Call Trace:
 <IRQ> 
 [<ffffffff832e4b1f>] icmp_glue_bits+0x7f/0x1e0 net/ipv4/icmp.c:344
 [<ffffffff83214211>] __ip_append_data.isra.45+0x1e71/0x2a70 net/ipv4/ip_output.c:1043
 [<ffffffff83214ef4>] ip_append_data.part.47+0xe4/0x150 net/ipv4/ip_output.c:1193
 [<ffffffff8321d448>] ip_append_data+0x68/0x80 net/ipv4/ip_output.c:1182
 [<ffffffff832e472e>] icmp_push_reply+0x19e/0x510 net/ipv4/icmp.c:362
 [<ffffffff832e90ca>] icmp_send+0xaca/0x13d0 net/ipv4/icmp.c:727
 [<ffffffff83218eca>] ip_fragment.constprop.51+0x1aa/0x200 net/ipv4/ip_output.c:509
 [<ffffffff832193aa>] ip_finish_output+0x48a/0xc00 net/ipv4/ip_output.c:286
 [<ffffffff8321d139>] NF_HOOK_COND include/linux/netfilter.h:240 [inline]
 [<ffffffff8321d139>] ip_output+0x219/0x4c0 net/ipv4/ip_output.c:362
 [<ffffffff83219ffb>] dst_output include/net/dst.h:498 [inline]
 [<ffffffff83219ffb>] ip_local_out+0x9b/0x180 net/ipv4/ip_output.c:119
 [<ffffffff8321b33e>] ip_queue_xmit+0x88e/0x1af0 net/ipv4/ip_output.c:461
 [<ffffffff83280f62>] tcp_transmit_skb+0x1642/0x2bf0 net/ipv4/tcp_output.c:1029
 [<ffffffff8328be28>] __tcp_retransmit_skb+0x608/0x1890 net/ipv4/tcp_output.c:2649
 [<ffffffff8328d7a3>] tcp_retransmit_skb+0x23/0x2c0 net/ipv4/tcp_output.c:2666
 [<ffffffff8329308d>] tcp_retransmit_timer+0x7bd/0x1ed0 net/ipv4/tcp_timer.c:461
 [<ffffffff83294991>] tcp_write_timer_handler+0x1f1/0x6f0 net/ipv4/tcp_timer.c:543
 [<ffffffff83294f4a>] tcp_write_timer+0xba/0xd0 net/ipv4/tcp_timer.c:561
 [<ffffffff81290a8c>] call_timer_fn+0x18c/0x870 kernel/time/timer.c:1185
 [<ffffffff812917b2>] __run_timers kernel/time/timer.c:1261 [inline]
 [<ffffffff812917b2>] run_timer_softirq+0x642/0xb90 kernel/time/timer.c:1444
 [<ffffffff838c5c2c>] __do_softirq+0x22c/0xa1a kernel/softirq.c:273
 [<ffffffff8113f8ad>] invoke_softirq kernel/softirq.c:350 [inline]
 [<ffffffff8113f8ad>] irq_exit+0x10d/0x140 kernel/softirq.c:391
 [<ffffffff838c5391>] exiting_irq arch/x86/include/asm/apic.h:653 [inline]
 [<ffffffff838c5391>] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:926
 [<ffffffff838c42d0>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:741
 <EOI> 
 [<ffffffff811a4017>] finish_lock_switch kernel/sched/sched.h:1177 [inline]
 [<ffffffff811a4017>] finish_task_switch+0x1e7/0x4e0 kernel/sched/core.c:2682
 [<ffffffff838b2fb4>] context_switch kernel/sched/core.c:2811 [inline]
 [<ffffffff838b2fb4>] __schedule+0x7d4/0x1d70 kernel/sched/core.c:3330
 [<ffffffff838b474a>] schedule+0x7a/0x1b0 kernel/sched/core.c:3359
 [<ffffffff838c0334>] freezable_schedule include/linux/freezer.h:171 [inline]
 [<ffffffff838c0334>] do_nanosleep+0x1f4/0x4f0 kernel/time/hrtimer.c:1503
 [<ffffffff812a04d0>] hrtimer_nanosleep+0x210/0x540 kernel/time/hrtimer.c:1572
 [<ffffffff812a08be>] SYSC_nanosleep kernel/time/hrtimer.c:1610 [inline]
 [<ffffffff812a08be>] SyS_nanosleep+0xbe/0x110 kernel/time/hrtimer.c:1599
 [<ffffffff838c2765>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: 00 00 4d 8b 24 24 44 8b 6d d0 4d 85 e4 0f 85 1b ff ff ff 8b 5d b4 e8 c6 50 41 fe 8b 45 bc 85 c0 0f 84 7f fe ff ff e8 b6 50 41 fe <0f> 0b 8b 5d b4 e9 70 fe ff ff c7 45 b0 00 00 00 00 e9 8c fa ff 
RIP  [<ffffffff82f3c3fa>] skb_copy_and_csum_bits+0x69a/0x7d0 net/core/skbuff.c:2192
 RSP <ffff8801db307260>
---[ end trace d8e6e0baa9d033b6 ]---