------------[ cut here ]------------ WARNING: CPU: 0 PID: 5532 at net/mptcp/subflow.c:1413 subflow_data_ready+0x4ee/0x770 net/mptcp/subflow.c:1412 Modules linked in: CPU: 0 PID: 5532 Comm: syz-executor.0 Not tainted 6.8.0-rc3-syzkaller-00171-g78e563f2d629 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:subflow_data_ready+0x4ee/0x770 net/mptcp/subflow.c:1412 Code: 0b 90 e9 93 fc ff ff e8 a0 cc 40 f6 90 0f 0b 90 e9 f9 fc ff ff e8 92 cc 40 f6 4c 89 f7 e8 fa 15 00 00 eb 98 e8 83 cc 40 f6 90 <0f> 0b 90 e9 ed fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c ad fb ff ff RSP: 0018:ffffc90005256b80 EFLAGS: 00010293 RAX: ffffffff8b529aad RBX: 0000000000000000 RCX: ffff888029dc1dc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90005256c30 R08: ffffffff8b529832 R09: 1ffff1100462fc99 R10: dffffc0000000000 R11: ffffed100462fc9a R12: ffff88802317dc00 R13: 0000000000000000 R14: ffff88807d77a4c0 R15: dffffc0000000000 FS: 00007ff0eadff6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055af36d7d950 CR3: 000000002c468000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcp_data_queue+0x1e6d/0x6d90 net/ipv4/tcp_input.c:5223 tcp_rcv_state_process+0x273e/0x4580 net/ipv4/tcp_input.c:6859 tcp_v4_do_rcv+0x3b0/0xb90 net/ipv4/tcp_ipv4.c:1929 sk_backlog_rcv include/net/sock.h:1092 [inline] __release_sock+0x214/0x350 net/core/sock.c:2973 release_sock+0x61/0x1f0 net/core/sock.c:3539 __mptcp_close_ssk+0x662/0x1210 net/mptcp/protocol.c:2418 mptcp_pm_nl_rm_addr_or_subflow+0x41d/0xa60 net/mptcp/pm_netlink.c:818 mptcp_pm_remove_subflow+0x38/0xb0 net/mptcp/pm.c:69 mptcp_pm_remove_addrs_and_subflows+0x46d/0x500 net/mptcp/pm_netlink.c:1558 mptcp_nl_remove_addrs_list net/mptcp/pm_netlink.c:1575 [inline] mptcp_pm_nl_flush_addrs_doit+0x43b/0x770 net/mptcp/pm_netlink.c:1616 genl_family_rcv_msg_doit net/netlink/genetlink.c:1113 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0xad6/0xe50 net/netlink/genetlink.c:1208 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7ff0eb27cda9 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:00007ff0eadff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ff0eb3ac050 RCX: 00007ff0eb27cda9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000006 RBP: 00007ff0eb2c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007ff0eb3ac050 R15: 00007fffa0241b38