------------[ 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: 0 PID: 3896 Comm: syz-executor1 Not tainted 4.4.139-g7ba5557 #66
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800abc9e000 task.stack: ffff8800a5238000
RIP: 0010:[<ffffffff82f3b31a>]  [<ffffffff82f3b31a>] skb_copy_and_csum_bits+0x69a/0x7d0 net/core/skbuff.c:2192
RSP: 0018:ffff8801db207260  EFLAGS: 00010206
RAX: ffff8800abc9e000 RBX: 000000008f629f2b RCX: 1ffff10015b2d7a9
RDX: 0000000000000100 RSI: ffffffff82f3b31a RDI: ffff8800ad96bd48
RBP: ffff8801db2072e0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000003c R11: ffff8800b59b42df R12: 0000000000000000
R13: 0000000000000224 R14: 0000000000000000 R15: ffff8800ad96bd40
FS:  0000000002180940(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000093002d CR3: 00000000a5202000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81290a8c ffff8801caf31204 ffffffff838c4d2c ffffffff8113f8ad
 ffff8801caf31208 ffff8800b59b4068 8f629f2b0000003c 000001e80000003c
 0000003c0000003c ffff8801caf31140 0000000000000000 ffff8801ccefc9c0
Call Trace:
 <IRQ> 
 [<ffffffff832e3a4f>] icmp_glue_bits+0x7f/0x1e0 net/ipv4/icmp.c:344
 [<ffffffff832130f1>] __ip_append_data.isra.45+0x1e71/0x2a70 net/ipv4/ip_output.c:1043
 [<ffffffff83213dd4>] ip_append_data.part.47+0xe4/0x150 net/ipv4/ip_output.c:1193
 [<ffffffff8321c328>] ip_append_data+0x68/0x80 net/ipv4/ip_output.c:1182
 [<ffffffff832e365e>] icmp_push_reply+0x19e/0x510 net/ipv4/icmp.c:362
 [<ffffffff832e7ffa>] icmp_send+0xaca/0x13d0 net/ipv4/icmp.c:727
 [<ffffffff83217daa>] ip_fragment.constprop.51+0x1aa/0x200 net/ipv4/ip_output.c:509
 [<ffffffff8321828a>] ip_finish_output+0x48a/0xc00 net/ipv4/ip_output.c:286
 [<ffffffff8321c019>] NF_HOOK_COND include/linux/netfilter.h:240 [inline]
 [<ffffffff8321c019>] ip_output+0x219/0x4c0 net/ipv4/ip_output.c:362
 [<ffffffff83218edb>] dst_output include/net/dst.h:498 [inline]
 [<ffffffff83218edb>] ip_local_out+0x9b/0x180 net/ipv4/ip_output.c:119
 [<ffffffff8321a21e>] ip_queue_xmit+0x88e/0x1af0 net/ipv4/ip_output.c:461
 [<ffffffff8327fe02>] tcp_transmit_skb+0x1642/0x2bf0 net/ipv4/tcp_output.c:1029
 [<ffffffff8328acc8>] __tcp_retransmit_skb+0x608/0x1890 net/ipv4/tcp_output.c:2649
 [<ffffffff8328c643>] tcp_retransmit_skb+0x23/0x2c0 net/ipv4/tcp_output.c:2666
 [<ffffffff83291f2d>] tcp_retransmit_timer+0x7bd/0x1ed0 net/ipv4/tcp_timer.c:461
 [<ffffffff83293831>] tcp_write_timer_handler+0x1f1/0x6f0 net/ipv4/tcp_timer.c:543
 [<ffffffff83293dea>] 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
 [<ffffffff838c4d2c>] __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
 [<ffffffff838c4491>] exiting_irq arch/x86/include/asm/apic.h:653 [inline]
 [<ffffffff838c4491>] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:926
 [<ffffffff838c33d0>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:741
 <EOI> 
 [<ffffffff814352ee>] __alloc_pages_nodemask+0x2ce/0x1660 mm/page_alloc.c:3305
 [<ffffffff810e3ea2>] __alloc_pages include/linux/gfp.h:415 [inline]
 [<ffffffff810e3ea2>] __alloc_pages_node include/linux/gfp.h:428 [inline]
 [<ffffffff810e3ea2>] alloc_pages_node include/linux/gfp.h:442 [inline]
 [<ffffffff810e3ea2>] pte_alloc_one+0x22/0x100 arch/x86/mm/pgtable.c:29
 [<ffffffff8149485e>] __pte_alloc+0x2e/0x3b0 mm/memory.c:568
 [<ffffffff81499761>] copy_pte_range mm/memory.c:942 [inline]
 [<ffffffff81499761>] copy_pmd_range mm/memory.c:1017 [inline]
 [<ffffffff81499761>] copy_pud_range mm/memory.c:1039 [inline]
 [<ffffffff81499761>] copy_page_range+0xf01/0x1470 mm/memory.c:1101
 [<ffffffff8112b5ab>] dup_mmap kernel/fork.c:515 [inline]
 [<ffffffff8112b5ab>] dup_mm kernel/fork.c:983 [inline]
 [<ffffffff8112b5ab>] copy_mm kernel/fork.c:1037 [inline]
 [<ffffffff8112b5ab>] copy_process+0x3efb/0x63e0 kernel/fork.c:1503
 [<ffffffff8112dea6>] _do_fork+0x146/0xe10 kernel/fork.c:1784
 [<ffffffff8112ec47>] SYSC_clone kernel/fork.c:1893 [inline]
 [<ffffffff8112ec47>] SyS_clone+0x37/0x50 kernel/fork.c:1887
 [<ffffffff838c1865>] 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 a6 61 41 fe 8b 45 bc 85 c0 0f 84 7f fe ff ff e8 96 61 41 fe <0f> 0b 8b 5d b4 e9 70 fe ff ff c7 45 b0 00 00 00 00 e9 8c fa ff 
RIP  [<ffffffff82f3b31a>] skb_copy_and_csum_bits+0x69a/0x7d0 net/core/skbuff.c:2192
 RSP <ffff8801db207260>
---[ end trace ee7c5f9cc9cdf512 ]---