usb 8-1: USB disconnect, device number 13
 1024-page vmalloc region starting at 0xffffc90010541000 allocated at kcov_ioctl+0x58/0x640 kernel/kcov.c:716
list_add corruption. next->prev should be prev (ffffffff8dc23e00), but was 0000000000000000. (next=ffffc90010541000).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:31!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 12500 Comm: kworker/1:3 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:__list_add_valid_or_report+0xf4/0x130 lib/list_debug.c:29
Code: 4b 6c fd 42 80 7c 2d 00 00 74 08 4c 89 e7 e8 f3 30 8d fd 48 8b 53 08 48 c7 c7 60 eb 85 8b 4c 89 f6 48 89 d9 e8 bd eb 8c fc 90 <0f> 0b 4c 89 f7 e8 d2 4a 6c fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 c3
RSP: 0018:ffffc90003dd7710 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffffc90010541000 RCX: 6b47946394919b00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff920020a8201 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017124923 R12: ffffc90010541008
R13: dffffc0000000000 R14: ffffffff8dc23e00 R15: ffffc9001ad66000
FS:  0000000000000000(0000) GS:ffff8881266c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e95c7da08 CR3: 000000005de2c000 CR4: 00000000003526f0
DR0: 00000000eeee8000 DR1: 0000000000003000 DR2: 0000000000000004
DR3: 00000000eeee0000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:96 [inline]
 __list_add include/linux/list.h:158 [inline]
 list_add include/linux/list.h:177 [inline]
 kcov_remote_area_put kernel/kcov.c:156 [inline]
 kcov_remote_stop+0x457/0x680 kernel/kcov.c:1060
 hub_event+0x49d8/0x4f60 drivers/usb/core/hub.c:5998
 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>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xf4/0x130 lib/list_debug.c:29
Code: 4b 6c fd 42 80 7c 2d 00 00 74 08 4c 89 e7 e8 f3 30 8d fd 48 8b 53 08 48 c7 c7 60 eb 85 8b 4c 89 f6 48 89 d9 e8 bd eb 8c fc 90 <0f> 0b 4c 89 f7 e8 d2 4a 6c fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 c3
RSP: 0018:ffffc90003dd7710 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffffc90010541000 RCX: 6b47946394919b00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff920020a8201 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017124923 R12: ffffc90010541008
R13: dffffc0000000000 R14: ffffffff8dc23e00 R15: ffffc9001ad66000
FS:  0000000000000000(0000) GS:ffff8881266c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e95c7da08 CR3: 000000009d338000 CR4: 00000000003526f0
DR0: 00000000eeee8000 DR1: 0000000000003000 DR2: 0000000000000004
DR3: 00000000eeee0000 DR6: 00000000ffff0ff0 DR7: 0000000000000400