------------[ cut here ]------------
in_task() && kcov_mode_enabled(mode)
WARNING: kernel/kcov.c:872 at kcov_remote_start+0x5d8/0x710 kernel/kcov.c:872, CPU#0: kworker/0:2/808
Modules linked in:
CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:kcov_remote_start+0x5d8/0x710 kernel/kcov.c:872
Code: 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 92 18 cd 02 90 0f 0b 90 e9 62 fa ff ff 90 0f 0b 90 0f b7 83 80 04 00 00 e9 a3 fa ff ff 90 <0f> 0b 90 eb 04 90 0f 0b 90 e8 1a 25 4a 09 89 c0 48 c7 c7 a0 03 26
RSP: 0018:ffffc90003e47768 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff888024743c80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b85e7e0 RDI: ffffffff8b85e7a0
RBP: ffffc90003e47a70 R08: ffffffff8b0f9bf0 R09: ffffffff8dbc77c0
R10: dffffc0000000000 R11: fffffbfff1e8fbcf R12: ffff888145787000
R13: dffffc0000000000 R14: 0100000000000009 R15: ffff888145785000
FS:  0000000000000000(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc1259e018 CR3: 0000000032090000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kcov_remote_start_usb include/linux/kcov.h:55 [inline]
 hub_event+0x150/0x4f60 drivers/usb/core/hub.c:5889
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xaec/0x17a0 kernel/workqueue.c:3340
 worker_thread+0xda6/0x1360 kernel/workqueue.c:3421
 kthread+0x726/0x8b0 kernel/kthread.c:463
 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>