------------[ cut here ]------------ WARNING: CPU: 1 PID: 19 at net/mptcp/protocol.c:764 mptcp_reset_timer+0x12a/0x160 net/mptcp/protocol.c:764 Modules linked in: CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 5.11.0-rc7-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:764 Code: e8 0b 16 3b fe e8 96 25 bd 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 76 25 bd f8 <0f> 0b 41 bc 14 00 00 00 eb 98 e8 47 1e 00 f9 e9 30 ff ff ff 48 c7 RSP: 0018:ffffc90000d97bb0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff920001b2f76 RCX: 0000000000000000 RDX: ffff8880119fd340 RSI: ffffffff88b5b0da RDI: 0000000000000003 RBP: ffff888025570000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff88b5b077 R11: 0000000000000007 R12: 0000000000000000 R13: 0000000000000001 R14: ffff88806a6a0000 R15: ffff888025570860 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb7bd112000 CR3: 000000001e3dd000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mptcp_worker+0xeb8/0x14d0 net/mptcp/protocol.c:2312 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