------------[ cut here ]------------ WARNING: CPU: 0 PID: 2517 at net/mptcp/protocol.c:2907 mptcp_check_listen_stop.part.0+0x3e/0xa0 net/mptcp/protocol.c:2907 Modules linked in: CPU: 0 PID: 2517 Comm: syz-executor.0 Not tainted 6.4.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:mptcp_check_listen_stop.part.0+0x3e/0xa0 net/mptcp/protocol.c:2907 Code: 00 8b 92 d0 00 00 00 65 ff 4c 90 04 48 8b 9f c0 09 00 00 48 85 db 74 11 0f b6 43 12 88 44 24 07 0f b6 44 24 07 3c 0a 74 0b 90 <0f> 0b 90 48 83 c4 08 5b 5d c3 48 89 fd be 01 00 00 00 48 89 df e8 RSP: 0018:ffffc900020a3df8 EFLAGS: 00010293 RAX: 0000000000000007 RBX: ffff888101758c40 RCX: 0000000000000000 RDX: 000000000000000e RSI: 0000000000000000 RDI: ffff888103750000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88810beda500 R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000000000 R13: ffff888102e69520 R14: ffff888103750980 R15: 0000000000000000 FS: 000055555610a480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555610ada8 CR3: 0000000107b2f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mptcp_check_listen_stop net/mptcp/protocol.c:2930 [inline] __mptcp_close+0x334/0x370 net/mptcp/protocol.c:2928 mptcp_close+0x1e/0x70 net/mptcp/protocol.c:2997 inet_release+0x2d/0x60 net/ipv4/af_inet.c:426 __sock_release+0x32/0xa0 net/socket.c:653 sock_close+0x13/0x20 net/socket.c:1397 __fput+0x89/0x250 fs/file_table.c:321 task_work_run+0x55/0x80 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x16c/0x180 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x17/0x40 kernel/entry/common.c:297 do_syscall_64+0x46/0x80 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7efed727ba9a Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007ffd465750a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007efed727ba9a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000032 R08: 0000001b2f260000 R09: 00007efed739bf8c R10: 00007ffd465751f0 R11: 0000000000000293 R12: 00007efed6e00450 R13: ffffffffffffffff R14: 00007efed6e00000 R15: 000000000000b0e9