general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10149 Comm: syz-executor.2 Not tainted 4.19.94-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:net_generic include/net/netns/generic.h:45 [inline]
RIP: 0010:nf_ct_netns_do_get+0xd3/0x5c0 net/netfilter/nf_conntrack_proto.c:797
Code: 92 73 fb 45 84 ff 0f 84 6f 02 00 00 e8 e6 90 73 fb 49 8d bc 24 48 1b 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 cd 04 00 00 4d 8b bc 24 48 1b 00 00 e8 a6 a1 60
RSP: 0018:ffff8880a44bf808 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc9000a2b8000
RDX: 0000000000000369 RSI: ffffffff85f784ca RDI: 0000000000001b48
RBP: ffff8880a44bf838 R08: ffff8880338ba200 R09: ffffed1015d24733
R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000000
R13: 0000000000000003 R14: 0000000000000028 R15: 0000000000000001
FS:  00007f3324479700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f878b4f1000 CR3: 0000000095d02000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 nf_ct_netns_get+0x3d/0xc0 net/netfilter/nf_conntrack_proto.c:889
 connmark_tg_check+0x61/0xe0 net/netfilter/xt_connmark.c:118
 xt_check_target+0x283/0x6a0 net/netfilter/x_tables.c:1024
 check_target net/ipv4/netfilter/arp_tables.c:398 [inline]
 find_check_entry net/ipv4/netfilter/arp_tables.c:421 [inline]
 translate_table+0x1005/0x1d70 net/ipv4/netfilter/arp_tables.c:571
 do_replace net/ipv4/netfilter/arp_tables.c:976 [inline]
 do_arpt_set_ctl+0x303/0x640 net/ipv4/netfilter/arp_tables.c:1455
 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
 nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115
 ip_setsockopt net/ipv4/ip_sockglue.c:1258 [inline]
 ip_setsockopt+0xdf/0x100 net/ipv4/ip_sockglue.c:1238
 udp_setsockopt+0x68/0xb0 net/ipv4/udp.c:2548
 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3046
 __sys_setsockopt+0x17a/0x280 net/socket.c:1901
 __do_sys_setsockopt net/socket.c:1912 [inline]
 __se_sys_setsockopt net/socket.c:1909 [inline]
 __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45af49
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3324478c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045af49
RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000020000880 R11: 0000000000000246 R12: 00007f33244796d4
R13: 00000000004d3440 R14: 00000000004e4298 R15: 00000000ffffffff
Modules linked in:
---[ end trace 658e5167437d5f53 ]---
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:net_generic include/net/netns/generic.h:45 [inline]
RIP: 0010:nf_ct_netns_do_get+0xd3/0x5c0 net/netfilter/nf_conntrack_proto.c:797
Code: 92 73 fb 45 84 ff 0f 84 6f 02 00 00 e8 e6 90 73 fb 49 8d bc 24 48 1b 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 cd 04 00 00 4d 8b bc 24 48 1b 00 00 e8 a6 a1 60
RSP: 0018:ffff8880a44bf808 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc9000a2b8000
RDX: 0000000000000369 RSI: ffffffff85f784ca RDI: 0000000000001b48
RBP: ffff8880a44bf838 R08: ffff8880338ba200 R09: ffffed1015d24733
R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000000
R13: 0000000000000003 R14: 0000000000000028 R15: 0000000000000001
FS:  00007f3324479700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 0000000095d02000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400