nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7801 at include/net/tcp.h:1219 tcp_snd_cwnd_set include/net/tcp.h:1219 [inline]
WARNING: CPU: 1 PID: 7801 at include/net/tcp.h:1219 tcp_mtup_probe_success net/ipv4/tcp_input.c:2712 [inline]
WARNING: CPU: 1 PID: 7801 at include/net/tcp.h:1219 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3356 [inline]
WARNING: CPU: 1 PID: 7801 at include/net/tcp.h:1219 tcp_ack+0x541e/0x58f0 net/ipv4/tcp_input.c:3861
Modules linked in:
CPU: 1 PID: 7801 Comm: syz-executor.1 Not tainted 5.18.0-syzkaller-09901-g7f50d4dfe816 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tcp_snd_cwnd_set include/net/tcp.h:1219 [inline]
RIP: 0010:tcp_mtup_probe_success net/ipv4/tcp_input.c:2712 [inline]
RIP: 0010:tcp_clean_rtx_queue net/ipv4/tcp_input.c:3356 [inline]
RIP: 0010:tcp_ack+0x541e/0x58f0 net/ipv4/tcp_input.c:3861
Code: dc d5 ff ff 48 8b 7c 24 78 e8 8e 67 ea f9 e9 a7 d5 ff ff 48 8b bc 24 88 00 00 00 e8 6c 67 ea f9 e9 1e d5 ff ff e8 f2 55 9e f9 <0f> 0b e9 6e f4 ff ff 48 89 f7 e8 53 67 ea f9 e9 7c cf ff ff 48 8b
RSP: 0018:ffffc90005387738 EFLAGS: 00010212
RAX: 0000000000014b76 RBX: 0000000000000000 RCX: ffffc90004e09000
RDX: 0000000000040000 RSI: ffffffff87db4b7e RDI: 0000000000000003
RBP: ffff88804746cc40 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff87db3feb R11: 0000000000000000 R12: ffff88804746ce04
R13: 0000000000001204 R14: ffff88804746ce08 R15: ffff88804746c480
FS:  00007fc89734a700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020102000 CR3: 00000000162a8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tcp_rcv_established+0x5e8/0x20e0 net/ipv4/tcp_input.c:5973
 tcp_v4_do_rcv+0x66c/0x980 net/ipv4/tcp_ipv4.c:1659
 sk_backlog_rcv include/net/sock.h:1061 [inline]
 __release_sock+0x134/0x3b0 net/core/sock.c:2849
 __sk_flush_backlog+0x22/0x30 net/core/sock.c:2869
 sk_flush_backlog include/net/sock.h:1151 [inline]
 tcp_sendmsg_locked+0x2973/0x2fd0 net/ipv4/tcp.c:1293
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1448
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 __sys_sendto+0x21a/0x320 net/socket.c:2119
 __do_sys_sendto net/socket.c:2131 [inline]
 __se_sys_sendto net/socket.c:2127 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2127
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fc896289109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc89734a168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fc89639bf60 RCX: 00007fc896289109
RDX: 0000000020000581 RSI: 0000000020000580 RDI: 0000000000000003
RBP: 00007fc8962e308d R08: 0000000000000000 R09: 0000000000000000
R10: 000000000400c040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7c99bd2f R14: 00007fc89734a300 R15: 0000000000022000
 </TASK>