audit: type=1800 audit(1595146524.753:33): pid=9246 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="sda1" ino=15908 res=0
ip_tables: iptables: counters copy to user failed while replacing table
: caps=(0x0000000000000000, 0x00000144401d7c69) len=582 data_len=0 gso_size=106 gso_type=1 ip_summed=3
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9259 at net/core/dev.c:2613 skb_warn_bad_offload.cold+0x1d1/0x44d net/core/dev.c:2613
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 9259 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 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:964
RIP: 0010:skb_warn_bad_offload.cold+0x1d1/0x44d net/core/dev.c:2613
RSP: 0018:ffff888050e6f468 EFLAGS: 00010286
RAX: 0000000000000066 RBX: ffff88804e9e8da8 RCX: 0000000000000000
RDX: 000000000001a2e9 RSI: ffffffff81499420 RDI: ffffed100a1cde83
RBP: ffffffff87183f80 R08: 0000000000000066 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87182400
R13: 000000000000006a R14: 0000000000000000 R15: 0000000000000246
 skb_checksum_help+0x650/0x7f0 net/core/dev.c:2634
 checksum_tg+0x52/0x65 net/netfilter/xt_CHECKSUM.c:29
 ipt_do_table+0xaa8/0x1700 net/ipv4/netfilter/ip_tables.c:353
 ipt_mangle_out net/ipv4/netfilter/iptable_mangle.c:64 [inline]
 iptable_mangle_hook+0x2d5/0x560 net/ipv4/netfilter/iptable_mangle.c:89
 nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
 nf_hook_slow+0xb0/0x1a0 net/netfilter/core.c:467
 nf_hook include/linux/netfilter.h:205 [inline]
 __ip_local_out+0x398/0x730 net/ipv4/ip_output.c:113
 ip_local_out+0x25/0x170 net/ipv4/ip_output.c:122
 ip_queue_xmit+0x7ca/0x1a70 net/ipv4/ip_output.c:504
 __tcp_transmit_skb+0x1831/0x2dc0 net/ipv4/tcp_output.c:1131
 tcp_transmit_skb net/ipv4/tcp_output.c:1147 [inline]
 tcp_write_xmit+0x56a/0x49a0 net/ipv4/tcp_output.c:2391
 tcp_sendmsg_locked+0x152d/0x2ef0 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+0xb5/0x100 net/socket.c:656
 SYSC_sendto net/socket.c:1763 [inline]
 SyS_sendto+0x1c7/0x2c0 net/socket.c:1731
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45c1d9
RSP: 002b:00007fd1e1936c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000000000002b1c0 RCX: 000000000045c1d9
RDX: 000000000000fe6a RSI: 00000000200012c0 RDI: 0000000000000004
RBP: 000000000078bf58 R08: 0000000000000000 R09: 0000000000000027
R10: 000000000020c49a R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffc6f5fee1f R14: 00007fd1e19379c0 R15: 000000000078bf0c
Kernel Offset: disabled
Rebooting in 86400 seconds..