------------[ cut here ]------------
WARNING: CPU: 0 PID: 759 at net/mptcp/protocol.c:1001 __mptcp_clean_una+0x3ed/0x420 net/mptcp/protocol.c:1001
Modules linked in:

CPU: 0 PID: 759 Comm: kworker/0:2 Not tainted 6.8.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events mptcp_worker

RIP: 0010:__mptcp_clean_una+0x3ed/0x420 net/mptcp/protocol.c:1001
Code: ff ff e8 d6 c5 a5 fd 41 8b 84 24 70 02 00 00 41 03 84 24 10 02 00 00 29 c5 85 ed 44 0f 4f ed e9 ca fd ff ff e8 b4 c5 a5 fd 90 <0f> 0b 90 e9 c9 fc ff ff e8 a6 c5 a5 fd 90 0f 0b 90 e9 10 fe ff ff
RSP: 0018:ffffc9000310bcb8 EFLAGS: 00010293

RAX: ffffffff838fdbdc RBX: ffff88810ccd0000 RCX: ffff888103f11c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff838fd878 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88810e9ea280
R13: ffff88810e9eac18 R14: 0000000000000000 R15: ffff88810e9eac18
FS:  0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555573ceda8 CR3: 00000001124f8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __mptcp_clean_una_wakeup+0x57/0x160 net/mptcp/protocol.c:1049
 mptcp_clean_una_wakeup net/mptcp/protocol.c:1056 [inline]
 __mptcp_retrans+0x55/0x440 net/mptcp/protocol.c:2587
 mptcp_worker+0x53b/0x990 net/mptcp/protocol.c:2739
 process_one_work kernel/workqueue.c:2633 [inline]
 process_scheduled_works+0x37d/0x920 kernel/workqueue.c:2706
 worker_thread+0x392/0x570 kernel/workqueue.c:2787
 kthread+0x144/0x180 kernel/kthread.c:388
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
 </TASK>