------------[ cut here ]------------
WARNING: CPU: 1 PID: 9850 at net/mptcp/protocol.c:761 mptcp_reset_timer+0x12a/0x160 net/mptcp/protocol.c:761
Modules linked in:
CPU: 1 PID: 9850 Comm: kworker/1:5 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events mptcp_worker
RIP: 0010:mptcp_reset_timer+0x12a/0x160 net/mptcp/protocol.c:761
Code: e8 1b bc 3c fe e8 b6 68 bf f8 48 b8 00 00 00 00 00 fc ff df 48 c7 04 03 00 00 00 00 48 83 c4 40 5b 5d 41 5c c3 e8 96 68 bf f8 <0f> 0b 41 bc 14 00 00 00 eb 98 e8 c7 41 02 f9 e9 30 ff ff ff 48 c7
RSP: 0018:ffffc9001627fbb0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff92002c4ff76 RCX: 0000000000000000
RDX: ffff88802678d340 RSI: ffffffff88b36d5a RDI: 0000000000000003
RBP: ffff88806ae70b80 R08: 0000000000000000 R09: 0000000000000004
R10: ffffffff88b36cf7 R11: 0000000000000007 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807b210000 R15: ffff88806ae713e8
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8000b9e000 CR3: 0000000020e08000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mptcp_worker+0xf8c/0x1960 net/mptcp/protocol.c:2336
 process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296