------------[ cut here ]------------
WARNING: CPU: 1 PID: 34 at net/mptcp/protocol.c:761 mptcp_reset_timer net/mptcp/protocol.c:761 [inline]
WARNING: CPU: 1 PID: 34 at net/mptcp/protocol.c:761 mptcp_worker+0x1699/0x19f0 net/mptcp/protocol.c:2336
Modules linked in:
CPU: 1 PID: 34 Comm: kworker/1:1 Not tainted 5.11.0-rc6-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 net/mptcp/protocol.c:761 [inline]
RIP: 0010:mptcp_worker+0x1699/0x19f0 net/mptcp/protocol.c:2336
Code: 00 00 eb 0d e8 08 82 34 f8 4c 89 ff be 01 00 00 00 e8 4b 35 00 00 e9 28 ed ff ff e8 f1 81 34 f8 e9 4d f2 ff ff e8 e7 81 34 f8 <0f> 0b bb 14 00 00 00 e9 ab fb ff ff 89 d9 80 e1 07 38 c1 0f 8c bd
RSP: 0018:ffffc90000e1fc38 EFLAGS: 00010293
RAX: ffffffff894346c9 RBX: 0000000000000000 RCX: ffff888012030000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880725b2101 R08: ffffffff89434272 R09: ffffed100e4b640e
R10: ffffed100e4b640e R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888011fd5318 R14: ffff8880725b2068 R15: ffff8880725b1800
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1f8a0ed000 CR3: 00000000696ed000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421
 kthread+0x39a/0x3c0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296