------------[ cut here ]------------
WARNING: CPU: 0 PID: 1271 at net/mptcp/pm.c:359 mptcp_pm_alloc_anno_list+0x31d/0x380
Modules linked in:
CPU: 0 UID: 0 PID: 1271 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events mptcp_worker
RIP: 0010:mptcp_pm_alloc_anno_list+0x31d/0x380
Code: b0 01 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d e9 08 65 15 00 cc e8 12 65 58 f6 90 0f 0b 90 e9 8d fd ff ff e8 04 65 58 f6 90 <0f> 0b 90 31 c0 eb d1 48 c7 c1 70 b4 a3 8f 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90007747338 EFLAGS: 00010293
RAX: ffffffff8b67462c RBX: ffff888032aea400 RCX: ffff888021d10000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000020022 R09: 00000000aa1414ac
R10: 00000000aa1414ac R11: 0000000000000000 R12: ffff888032aeae81
R13: dffffc0000000000 R14: ffff888022060000 R15: ffff88802305d000
FS:  0000000000000000(0000) GS:ffff8880b861a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5ea11efc8 CR3: 000000010ccf2000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 mptcp_pm_create_subflow_or_signal_addr+0x1448/0x1c30
 __mptcp_pm_kernel_worker+0x451/0xfb0
 mptcp_pm_worker+0x1b9/0x2d0
 mptcp_worker+0xd5/0x1160
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
