------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:2208!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 2115 Comm: syz-executor.5 Not tainted 4.4.174+ #17
task: ffff8801d7140000 task.stack: ffff8800a6e50000
RIP: 0010:[<ffffffff821f6ac7>]  [<ffffffff821f6ac7>] skb_copy_and_csum_bits+0x6e7/0x800 net/core/skbuff.c:2208
RSP: 0018:ffff8801db7072b8  EFLAGS: 00010206
RAX: ffff8801d7140000 RBX: 0000000000000000 RCX: 1ffff1003818ebb9
RDX: 0000000000000100 RSI: ffffffff821f6ac7 RDI: ffff8801c0c75dc8
RBP: ffff8801db707348 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000003c R11: ffff8800b30442df R12: 00000000dda16af5
R13: ffff8801d72253c0 R14: ffff8801c0c75dc0 R15: 000000000000003c
FS:  0000000000000000(0000) GS:ffff8801db700000(0063) knlGS:0000000009e26900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000009e2f1b4 CR3: 00000000a6cc6000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d72255c8 ffffffff8244588d ffffffff812582dd ffff8800b3044068
 0000003c8271bb16 ffffffff810e1a8a ffffffff8271b24e ffffffff8271a59d
 ffff8801d72255c4 ffffffff81ad8e0d 000001e8dda16af5 ffff8801d7225500
Call Trace:
 <IRQ> 
 [<ffffffff82493d6f>] icmp_glue_bits+0x7f/0x1e0 net/ipv4/icmp.c:344
 [<ffffffff823caf41>] __ip_append_data.isra.0+0x1e91/0x2a20 net/ipv4/ip_output.c:1045
 [<ffffffff823cbbbc>] ip_append_data.part.0+0xec/0x160 net/ipv4/ip_output.c:1195
 [<ffffffff823d07a9>] ip_append_data+0x69/0x90 net/ipv4/ip_output.c:1184
 [<ffffffff82493979>] icmp_push_reply+0x199/0x510 net/ipv4/icmp.c:362
 [<ffffffff824950fa>] icmp_send+0xaca/0x1410 net/ipv4/icmp.c:727
 [<ffffffff823cbde4>] ip_fragment net/ipv4/ip_output.c:511 [inline]
 [<ffffffff823cbde4>] ip_fragment.constprop.0+0x1b4/0x200 net/ipv4/ip_output.c:498
 [<ffffffff823cc1e9>] ip_finish_output+0x3b9/0xc60 net/ipv4/ip_output.c:286
 [<ffffffff823d04a7>] NF_HOOK_COND include/linux/netfilter.h:240 [inline]
 [<ffffffff823d04a7>] ip_output+0x227/0x4c0 net/ipv4/ip_output.c:362
 [<ffffffff823cd21c>] dst_output include/net/dst.h:498 [inline]
 [<ffffffff823cd21c>] ip_local_out+0x9c/0x180 net/ipv4/ip_output.c:119
 [<ffffffff823ce58c>] ip_queue_xmit+0x89c/0x1ab0 net/ipv4/ip_output.c:461
 [<ffffffff82431dd4>] __tcp_transmit_skb+0x1904/0x2cf0 net/ipv4/tcp_output.c:1034
 [<ffffffff8243c54a>] tcp_transmit_skb net/ipv4/tcp_output.c:1047 [inline]
 [<ffffffff8243c54a>] __tcp_retransmit_skb+0x5ea/0x1710 net/ipv4/tcp_output.c:2665
 [<ffffffff8243de33>] tcp_retransmit_skb+0x23/0x2c0 net/ipv4/tcp_output.c:2682
 [<ffffffff8244394e>] tcp_retransmit_timer net/ipv4/tcp_timer.c:461 [inline]
 [<ffffffff8244394e>] tcp_retransmit_timer+0x7ee/0x1f70 net/ipv4/tcp_timer.c:379
 [<ffffffff8244548c>] tcp_write_timer_handler+0x3bc/0x700 net/ipv4/tcp_timer.c:543
 [<ffffffff8244588d>] tcp_write_timer+0xbd/0xd0 net/ipv4/tcp_timer.c:561
 [<ffffffff812582dd>] call_timer_fn+0x18d/0x850 kernel/time/timer.c:1185
 [<ffffffff81258ebf>] __run_timers kernel/time/timer.c:1261 [inline]
 [<ffffffff81258ebf>] run_timer_softirq+0x51f/0xb70 kernel/time/timer.c:1444
 [<ffffffff8271bb16>] __do_softirq+0x226/0xa3f kernel/softirq.c:273
 [<ffffffff810e1a8a>] invoke_softirq kernel/softirq.c:350 [inline]
 [<ffffffff810e1a8a>] irq_exit+0x10a/0x150 kernel/softirq.c:391
 [<ffffffff8271b24e>] exiting_irq arch/x86/include/asm/apic.h:652 [inline]
 [<ffffffff8271b24e>] smp_apic_timer_interrupt+0x7e/0xb0 arch/x86/kernel/apic/apic.c:926
 [<ffffffff8271a59d>] apic_timer_interrupt+0x9d/0xb0 arch/x86/entry/entry_64.S:768
 <EOI> 
 [<ffffffff81b0adcc>] debug_smp_processor_id+0x1c/0x20 lib/smp_processor_id.c:56
 [<ffffffff81ad8e0d>] delay_tsc+0x1d/0xc0 arch/x86/lib/delay.c:57
 [<ffffffff81ad8d30>] __delay+0x10/0x20 arch/x86/lib/delay.c:160
 [<ffffffff8120e847>] __spin_lock_debug kernel/locking/spinlock_debug.c:114 [inline]
 [<ffffffff8120e847>] do_raw_spin_lock+0x1d7/0x370 kernel/locking/spinlock_debug.c:137
 [<ffffffff82717ca0>] __raw_spin_lock include/linux/spinlock_api_smp.h:145 [inline]
 [<ffffffff82717ca0>] _raw_spin_lock+0x40/0x50 kernel/locking/spinlock.c:151
 [<ffffffff8145c9f2>] spin_lock include/linux/spinlock.h:302 [inline]
 [<ffffffff8145c9f2>] alloc_vmap_area.isra.0+0x182/0x810 mm/vmalloc.c:378
 [<ffffffff8145e88c>] __get_vm_area_node.isra.0+0xdc/0x310 mm/vmalloc.c:1353
 [<ffffffff8145f8a0>] __vmalloc_node_range+0xa0/0x650 mm/vmalloc.c:1667
 [<ffffffff8146031c>] __vmalloc_node mm/vmalloc.c:1716 [inline]
 [<ffffffff8146031c>] __vmalloc_node_flags mm/vmalloc.c:1730 [inline]
 [<ffffffff8146031c>] vmalloc+0x5c/0x70 mm/vmalloc.c:1745
 [<ffffffff8236c756>] xt_compat_add_offset+0x216/0x340 net/netfilter/x_tables.c:503
 [<ffffffff8252bc38>] compat_calc_entry net/ipv4/netfilter/arp_tables.c:869 [inline]
 [<ffffffff8252bc38>] compat_table_info+0x1a8/0x3d0 net/ipv4/netfilter/arp_tables.c:900
 [<ffffffff8252c290>] get_info+0x430/0x4c0 net/ipv4/netfilter/arp_tables.c:938
 [<ffffffff8252e1d1>] compat_do_arpt_get_ctl net/ipv4/netfilter/arp_tables.c:1599 [inline]
 [<ffffffff8252e1d1>] compat_do_arpt_get_ctl+0x381/0x7a0 net/ipv4/netfilter/arp_tables.c:1589
 [<ffffffff822fd1be>] compat_nf_sockopt net/netfilter/nf_sockopt.c:138 [inline]
 [<ffffffff822fd1be>] compat_nf_getsockopt+0x8e/0x130 net/netfilter/nf_sockopt.c:162
 [<ffffffff823d66ca>] compat_ip_getsockopt net/ipv4/ip_sockglue.c:1562 [inline]
 [<ffffffff823d66ca>] compat_ip_getsockopt+0x14a/0x1c0 net/ipv4/ip_sockglue.c:1541
 [<ffffffff823e35f9>] inet_csk_compat_getsockopt+0x99/0x120 net/ipv4/inet_connection_sock.c:901
 [<ffffffff823f8b30>] compat_tcp_getsockopt+0x40/0x80 net/ipv4/tcp.c:2958
 [<ffffffff821debf4>] compat_sock_common_getsockopt+0xb4/0x150 net/core/sock.c:2633
 [<ffffffff822ac9c5>] C_SYSC_getsockopt net/compat.c:509 [inline]
 [<ffffffff822ac9c5>] compat_SyS_getsockopt+0x155/0x540 net/compat.c:492
 [<ffffffff822ad593>] C_SYSC_socketcall net/compat.c:843 [inline]
 [<ffffffff822ad593>] compat_SyS_socketcall+0x523/0x630 net/compat.c:774
 [<ffffffff8100603d>] do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline]
 [<ffffffff8100603d>] do_fast_syscall_32+0x32d/0xa90 arch/x86/entry/common.c:397
 [<ffffffff8271a350>] sysenter_flags_fixed+0xd/0x1a
Code: ff ff e8 4d 2b 11 ff be 8e 08 00 00 48 c7 c7 e0 25 a5 82 e8 cc cf ed fe e9 48 fe ff ff 44 8b 7d d4 e9 c4 fd ff ff e8 29 2b 11 ff <0f> 0b 4c 89 f7 e8 8f e3 28 ff e9 b2 fa ff ff 48 89 55 b8 e8 c1 
RIP  [<ffffffff821f6ac7>] skb_copy_and_csum_bits+0x6e7/0x800 net/core/skbuff.c:2208
 RSP <ffff8801db7072b8>
---[ end trace a67f0295ee3f5e21 ]---