------------[ cut here ]------------ WARNING: CPU: 1 PID: 9717 at net/mptcp/subflow.c:1348 subflow_data_ready+0x1d8/0x234 net/mptcp/subflow.c:1347 Modules linked in: CPU: 1 PID: 9717 Comm: syz-executor.2 Not tainted 6.1.76-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : subflow_data_ready+0x1d8/0x234 net/mptcp/subflow.c:1347 lr : subflow_data_ready+0x1d8/0x234 net/mptcp/subflow.c:1347 sp : ffff800022186920 x29: ffff800022186920 x28: ffff800022186ac0 x27: ffff0000d0680c80 x26: 1fffe0001a0d0195 x25: 000000001836042b x24: 0000000000000800 x23: ffff0000cc724000 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000d81c8000 x19: ffff0000dad2b100 x18: 1fffe0003686fb76 x17: ffff80001583d000 x16: ffff8000084f8b80 x15: 0000000000000002 x14: 0000000000000005 x13: ffff0000d0fb5340 x12: 0000000000040000 x11: 0000000000008b55 x10: ffff800026e21000 x9 : ffff800012063a24 x8 : 0000000000008b56 x7 : ffff800008062348 x6 : ffff800008062558 x5 : ffff00010dfa4560 x4 : ffff8000221864b8 x3 : ffff80001206389c x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: subflow_data_ready+0x1d8/0x234 net/mptcp/subflow.c:1347 tcp_data_ready+0x22c/0x44c net/ipv4/tcp_input.c:5028 tcp_data_queue+0x1cc8/0x53e4 net/ipv4/tcp_input.c:5102 tcp_rcv_state_process+0x204c/0x3e58 net/ipv4/tcp_input.c:6704 tcp_v4_do_rcv+0x6b4/0xb08 net/ipv4/tcp_ipv4.c:1700 sk_backlog_rcv include/net/sock.h:1117 [inline] __release_sock+0x1a8/0x408 net/core/sock.c:2935 release_sock+0x68/0x1cc net/core/sock.c:3499 __mptcp_close_ssk+0x3b8/0xb98 net/mptcp/protocol.c:2444 mptcp_close_ssk+0xa8/0xd4 net/mptcp/protocol.c:2510 mptcp_pm_nl_rm_addr_or_subflow+0x350/0x8f4 net/mptcp/pm_netlink.c:817 mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:848 [inline] mptcp_nl_remove_id_zero_address net/mptcp/pm_netlink.c:1494 [inline] mptcp_nl_cmd_del_addr+0x7dc/0x15d8 net/mptcp/pm_netlink.c:1524 genl_family_rcv_msg_doit net/netlink/genetlink.c:756 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0x948/0xc2c net/netlink/genetlink.c:850 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2508 genl_rcv+0x38/0x50 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x834/0xb18 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x55c/0x848 net/socket.c:2514 ___sys_sendmsg net/socket.c:2568 [inline] __sys_sendmsg+0x26c/0x33c net/socket.c:2597 __do_sys_sendmsg net/socket.c:2606 [inline] __se_sys_sendmsg net/socket.c:2604 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2604 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 880 hardirqs last enabled at (879): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (880): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (868): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (868): [] __do_softirq+0xc1c/0xe38 kernel/softirq.c:600 softirqs last disabled at (857): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]---