ip_tables: iptables: counters copy to user failed while replacing table lo: caps=(0x00000144401d7c69, 0x00000144401d7c69) len=5947 data_len=0 gso_size=1179 gso_type=1 ip_summed=3 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 13045 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: 13045 Comm: syz-executor.2 Not tainted 4.14.175-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:ffff8881ef0a7468 EFLAGS: 00010286 RAX: 000000000000006a RBX: ffff888041a9e328 RCX: 0000000000000000 RDX: 000000000000f92a RSI: ffffffff81491390 RDI: ffffed103de14e83 RBP: ffff88804b9b6a90 R08: 000000000000006a R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88804b9b69c0 R13: 000000000000049b R14: 0000000000000000 R15: 000000000000173b 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 netlink: 116 bytes leftover after parsing attributes in process `syz-executor.4'. 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 SYSC_sendto+0x1c4/0x2b0 net/socket.c:1763 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 netlink: 116 bytes leftover after parsing attributes in process `syz-executor.4'. entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c889 RSP: 002b:00007f41f52fac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f41f52fb6d4 RCX: 000000000045c889 RDX: ffffffffffffffb5 RSI: 0000000020000000 RDI: 0000000000000007 RBP: 000000000076bf00 R08: 0000000000000000 R09: ffffffffffffff8a R10: 0000000000000060 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a06 R14: 00000000004ccc06 R15: 000000000076bf0c Kernel Offset: disabled Rebooting in 86400 seconds..