UBIFS error (pid: 6761): cannot open "/dev/nbd4", error -22
ip_tables: iptables: counters copy to user failed while replacing table
lo: caps=(0x00000144401d7c69, 0x00000144401d7c69) len=8702 data_len=0 gso_size=1730 gso_type=1 ip_summed=3
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6920 at net/core/dev.c:2613 skb_warn_bad_offload.cold+0x1ce/0x448 net/core/dev.c:2613
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 6920 Comm: syz-executor.4 Not tainted 4.14.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x13e/0x194 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x2f/0x30 kernel/panic.c:547
 report_bug+0x20a/0x248 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:skb_warn_bad_offload.cold+0x1ce/0x448 net/core/dev.c:2613
RSP: 0018:ffff88820c84f358 EFLAGS: 00010282
RAX: 000000000000006a RBX: ffff888099467828 RCX: 0000000000000000
RDX: 00000000000119f2 RSI: ffffffff81491300 RDI: ffffed1041909e61
RBP: ffff88806cbeccd0 R08: 000000000000006a R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806cbecc00
R13: 00000000000006c2 R14: 0000000000000000 R15: 00000000000021fe
 skb_checksum_help+0x5f3/0x830 net/core/dev.c:2634
 checksum_tg+0x52/0x65 net/netfilter/xt_CHECKSUM.c:29
 ipt_do_table+0xaaf/0x16d0 net/ipv4/netfilter/ip_tables.c:353
 iptable_mangle_hook+0x9c/0x560 net/ipv4/netfilter/iptable_mangle.c:90
 nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
 nf_hook_slow+0xa5/0x1a0 net/netfilter/core.c:467
 nf_hook include/linux/netfilter.h:205 [inline]
 NF_HOOK_COND include/linux/netfilter.h:238 [inline]
 ip_output+0x33a/0x520 net/ipv4/ip_output.c:405
 dst_output include/net/dst.h:462 [inline]
 ip_local_out+0x93/0x170 net/ipv4/ip_output.c:124
 ip_queue_xmit+0x7b2/0x1b20 net/ipv4/ip_output.c:504
 __tcp_transmit_skb+0x1654/0x2dd0 net/ipv4/tcp_output.c:1131
 tcp_transmit_skb net/ipv4/tcp_output.c:1147 [inline]
 tcp_write_xmit+0x56a/0x4a60 net/ipv4/tcp_output.c:2391
 tcp_sendmsg_locked+0x14da/0x2fd0 net/ipv4/tcp.c:1406
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457
 inet_sendmsg+0x116/0x4d0 net/ipv4/af_inet.c:762
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xc5/0x100 net/socket.c:656
 sock_write_iter+0x22c/0x370 net/socket.c:925
 call_write_iter include/linux/fs.h:1777 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x44e/0x630 fs/read_write.c:482
 vfs_write+0x192/0x4e0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c479
RSP: 002b:00007f88ac234c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f88ac2356d4 RCX: 000000000045c479
RDX: 000000000000ff5a RSI: 0000000020000100 RDI: 0000000000000007
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000cda R14: 00000000004cebe8 R15: 000000000076bf2c
Kernel Offset: disabled
Rebooting in 86400 seconds..