syzbot

------------[ cut here ]------------
in_task() && kcov_mode_enabled(mode)
WARNING: kernel/kcov.c:884 at kcov_remote_start+0x5d8/0x710 kernel/kcov.c:884, CPU#1: kworker/1:5/5795
Modules linked in:
CPU: 1 UID: 0 PID: 5795 Comm: kworker/1:5 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/27/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:kcov_remote_start+0x5d8/0x710 kernel/kcov.c:884
Code: 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 72 6f d9 02 90 0f 0b 90 e9 62 fa ff ff 90 0f 0b 90 0f b7 83 c0 04 00 00 e9 a3 fa ff ff 90 <0f> 0b 90 eb 04 90 0f 0b 90 e8 5a 68 5e 09 89 c0 48 c7 c7 20 d4 4e
RSP: 0018:ffffc9000466f7e8 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff888041473d00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8ba664e0 RDI: ffffffff8ba664a0
RBP: ffffc9000466faf0 R08: ffffffff8b2501d0 R09: ffffffff8ddcb880
R10: dffffc0000000000 R11: fffffbfff1ed4737 R12: ffff888029faf000
R13: dffffc0000000000 R14: 0100000000000003 R15: ffff888029faa000
FS:  0000000000000000(0000) GS:ffff88812643c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9542727dac CR3: 000000005b36a000 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:3275 [inline]
 process_scheduled_works+0xb02/0x1830 kernel/workqueue.c:3358
 worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>