------------[ cut here ]------------ WARNING: CPU: 1 PID: 21 at include/net/tcp.h:1211 tcp_snd_cwnd_set include/net/tcp.h:1211 [inline] WARNING: CPU: 1 PID: 21 at include/net/tcp.h:1211 tcp_mtup_probe_success net/ipv4/tcp_input.c:2712 [inline] WARNING: CPU: 1 PID: 21 at include/net/tcp.h:1211 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3356 [inline] WARNING: CPU: 1 PID: 21 at include/net/tcp.h:1211 tcp_ack+0x5052/0x58d0 net/ipv4/tcp_input.c:3861 Modules linked in: CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 5.18.0-rc2-next-20220414-syzkaller #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:1211 [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+0x5052/0x58d0 net/ipv4/tcp_input.c:3861 Code: 04 c5 fb f9 e9 0d c4 ff ff e8 0a c5 fb f9 e9 11 d7 ff ff 48 8b bc 24 80 00 00 00 e8 f8 c4 fb f9 e9 d9 d6 ff ff e8 1e 32 af f9 <0f> 0b e9 91 f6 ff ff 48 89 cf e8 cf c4 fb f9 e9 8e d2 ff ff 48 8b RSP: 0018:ffffc900001b75e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: ffff888011a39d40 RSI: ffffffff87cacfd2 RDI: 0000000000000003 RBP: ffff8880246bdbc0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff87cac662 R11: 0000000000000000 R12: 0000000000001004 R13: ffff8880246bdd84 R14: ffff8880246bdd88 R15: ffff8880246bd400 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002026b000 CR3: 0000000024c3c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcp_rcv_established+0x5e8/0x2020 net/ipv4/tcp_input.c:5959 tcp_v4_do_rcv+0x66c/0x980 net/ipv4/tcp_ipv4.c:1660 tcp_v4_rcv+0x380f/0x3bc0 net/ipv4/tcp_ipv4.c:2074 ip_protocol_deliver_rcu+0xa3/0xb30 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x2ee/0x4c0 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:461 [inline] ip_rcv_finish+0x1cb/0x2f0 net/ipv4/ip_input.c:437 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:557 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5408 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5522 process_backlog+0x3a0/0x7c0 net/core/dev.c:5850 __napi_poll+0xb3/0x6e0 net/core/dev.c:6416 napi_poll net/core/dev.c:6483 [inline] net_rx_action+0x8ec/0xc60 net/core/dev.c:6570 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298