------------[ cut here ]------------ WARNING: CPU: 0 PID: 5829 at net/mptcp/subflow.c:1412 subflow_data_ready+0x4e5/0x760 net/mptcp/subflow.c:1411 Modules linked in: CPU: 0 PID: 5829 Comm: syz-executor.3 Not tainted 6.7.0-rc6-syzkaller-00248-g5254c0cbc92d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:subflow_data_ready+0x4e5/0x760 net/mptcp/subflow.c:1411 Code: 0b 90 e9 9c fc ff ff e8 69 ee 89 f6 90 0f 0b 90 e9 02 fd ff ff e8 5b ee 89 f6 4c 89 f7 e8 93 15 00 00 eb 9c e8 4c ee 89 f6 90 <0f> 0b 90 e9 f1 fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c b6 fb ff ff RSP: 0018:ffffc9001022ebe0 EFLAGS: 00010283 RAX: ffffffff8b047c14 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc900108d2000 RSI: 00000000000135de RDI: 00000000000135df RBP: ffffc9001022ec90 R08: ffffffff8b0479a2 R09: 1ffff1100b83d873 R10: dffffc0000000000 R11: ffffed100b83d874 R12: ffff88805c1ebac0 R13: 0000000000000000 R14: ffff88802a52a4c0 R15: dffffc0000000000 FS: 00007ff108da56c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0698cc56be CR3: 0000000028e99000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcp_data_queue+0x1e64/0x6d80 net/ipv4/tcp_input.c:5230 tcp_rcv_state_process+0x2716/0x4540 net/ipv4/tcp_input.c:6866 tcp_v4_do_rcv+0x3b0/0xb60 net/ipv4/tcp_ipv4.c:1929 sk_backlog_rcv include/net/sock.h:1121 [inline] __release_sock+0x19c/0x4c0 net/core/sock.c:2968 release_sock+0x61/0x1d0 net/core/sock.c:3534 __mptcp_close_ssk+0x663/0x1120 net/mptcp/protocol.c:2435 mptcp_pm_nl_rm_addr_or_subflow+0x41d/0xa50 net/mptcp/pm_netlink.c:818 mptcp_pm_remove_subflow+0x38/0xa0 net/mptcp/pm.c:69 mptcp_pm_remove_addrs_and_subflows+0x46d/0x4f0 net/mptcp/pm_netlink.c:1553 mptcp_nl_remove_addrs_list net/mptcp/pm_netlink.c:1570 [inline] mptcp_pm_nl_flush_addrs_doit+0x43b/0x770 net/mptcp/pm_netlink.c:1611 genl_family_rcv_msg_doit net/netlink/genetlink.c:972 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline] genl_rcv_msg+0xacf/0xe40 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x1df/0x430 net/netlink/af_netlink.c:2545 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x7e6/0x980 net/netlink/af_netlink.c:1368 netlink_sendmsg+0xa37/0xd70 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x592/0x890 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7ff10807cce9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff108da50c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ff10819c050 RCX: 00007ff10807cce9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007ff1080c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007ff10819c050 R15: 00007fffe783f988