------------[ cut here ]------------
WARNING: CPU: 1 PID: 5162 at net/mptcp/protocol.c:1006 __mptcp_clean_una+0xddb/0xff0 net/mptcp/protocol.c:1006
Modules linked in:
CPU: 1 PID: 5162 Comm: kworker/1:5 Not tainted 6.9.0-syzkaller-g6f130e4d4a5f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events mptcp_worker
RIP: 0010:__mptcp_clean_una+0xddb/0xff0 net/mptcp/protocol.c:1006
Code: fa ff ff 48 8b 4c 24 18 80 e1 07 fe c1 38 c1 0f 8c 8e fa ff ff 48 8b 7c 24 18 e8 c0 92 8b f6 e9 7f fa ff ff e8 e6 53 26 f6 90 <0f> 0b 90 4c 8b 6c 24 40 4d 89 f4 e9 04 f5 ff ff 44 89 f1 80 e1 07
RSP: 0018:ffffc9000434f800 EFLAGS: 00010293
RAX: ffffffff8b6fddea RBX: ffff88807e52e7d8 RCX: ffff88802cb03c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000434f918 R08: ffffffff8b6fd26d R09: fffff52000869f1c
R10: dffffc0000000000 R11: fffff52000869f1c R12: 0000000000000000
R13: ffff88807e52e7c8 R14: dffffc0000000000 R15: ffff8880597a8000
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020034000 CR3: 000000005b514000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 __mptcp_clean_una_wakeup+0x7f/0x2d0 net/mptcp/protocol.c:1056
 mptcp_clean_una_wakeup net/mptcp/protocol.c:1063 [inline]
 __mptcp_retrans+0x108/0xe90 net/mptcp/protocol.c:2616
 mptcp_worker+0x9c2/0x11d0 net/mptcp/protocol.c:2768
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>