------------[ cut here ]------------ ------------[ cut here ]------------ WARNING: CPU: 0 PID: 23771 at include/net/tcp.h:1219 tcp_snd_cwnd_set include/net/tcp.h:1219 [inline] WARNING: CPU: 0 PID: 23771 at include/net/tcp.h:1219 tcp_mtup_probe_success net/ipv4/tcp_input.c:2712 [inline] WARNING: CPU: 0 PID: 23771 at include/net/tcp.h:1219 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3356 [inline] WARNING: CPU: 0 PID: 23771 at include/net/tcp.h:1219 tcp_ack+0x541e/0x58f0 net/ipv4/tcp_input.c:3861 Modules linked in: CPU: 0 PID: 23771 Comm: syz-executor.2 Not tainted 5.18.0-syzkaller-10139-g8291eaafed36 #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 ae 24 eb f9 e9 a7 d5 ff ff 48 8b bc 24 88 00 00 00 e8 8c 24 eb f9 e9 1e d5 ff ff e8 e2 67 9e f9 <0f> 0b e9 6e f4 ff ff 48 89 f7 e8 73 24 eb f9 e9 7c cf ff ff 48 8b RSP: 0018:ffffc90007797420 EFLAGS: 00010212 RAX: 000000000000eff2 RBX: 0000000000000000 RCX: ffffc900062f2000 RDX: 0000000000040000 RSI: ffffffff87dc07fe RDI: 0000000000000005 RBP: ffff88807bce73c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88807bce7584 R13: 0000000000001004 R14: ffff88807bce7588 R15: ffff88807bce6c00 FS: 00007f0f6e516700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555558a8708 CR3: 000000006d925000 CR4: 0000000000350ef0 Call Trace: 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+0x296d/0x2fc0 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_sendmsg+0x334/0x810 net/socket.c:2492 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546 __sys_sendmmsg+0x195/0x470 net/socket.c:2632 __do_sys_sendmmsg net/socket.c:2661 [inline] __se_sys_sendmmsg net/socket.c:2658 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2658 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: 0033:0x7f0f6d489109 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:00007f0f6e516168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f0f6d59bf60 RCX: 00007f0f6d489109 RDX: 0000000000000004 RSI: 0000000020006880 RDI: 0000000000000004 RBP: 00007f0f6d4e308d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000060cd814 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff0cef1c2f R14: 00007f0f6e516300 R15: 0000000000022000