plantronics 0003:047F:FFFF.0017: unknown main item tag 0x0 plantronics 0003:047F:FFFF.0017: unknown main item tag 0x0 plantronics 0003:047F:FFFF.0017: unknown main item tag 0x0 plantronics 0003:047F:FFFF.0017: unknown main item tag 0x0 plantronics 0003:047F:FFFF.0017: hiddev0,hidraw0: USB HID v0.40 Device [HID 047f:ffff] on usb-dummy_hcd.3-1/input0 1024-page vmalloc region starting at 0xffffc9000e1b9000 allocated at kcov_ioctl+0x58/0x660 kernel/kcov.c:736 list_add corruption. next->prev should be prev (ffffffff8e028ce0), but was 0000000000000000. (next=ffffc9000e1b9000). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:31! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 5951 Comm: kworker/0:10 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Workqueue: usb_hub_wq hub_event RIP: 0010:__list_add_valid_or_report+0xf4/0x130 lib/list_debug.c:29 Code: 77 55 fd 42 80 7c 2d 00 00 74 08 4c 89 e7 e8 c3 12 76 fd 48 8b 53 08 48 c7 c7 60 2b aa 8b 4c 89 f6 48 89 d9 e8 cd 79 6d fc 90 <0f> 0b 4c 89 f7 e8 d2 76 55 fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 93 RSP: 0018:ffffc90005e7f7d0 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffffc9000e1b9000 RCX: 2b2f9944455c7300 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff92001c37201 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed10170c48fb R12: ffffc9000e1b9008 R13: dffffc0000000000 R14: ffffffff8e028ce0 R15: ffffc9001bd4e000 FS: 0000000000000000(0000) GS:ffff888125ecd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2b6dfb CR3: 000000000ddb8000 CR4: 00000000003526f0 Call Trace: __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:1084 hub_event+0x49d8/0x4f60 drivers/usb/core/hub.c:5998 process_one_work+0x98b/0x1630 kernel/workqueue.c:3318 process_scheduled_works kernel/workqueue.c:3401 [inline] worker_thread+0xb49/0x1140 kernel/workqueue.c:3482 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid_or_report+0xf4/0x130 lib/list_debug.c:29 Code: 77 55 fd 42 80 7c 2d 00 00 74 08 4c 89 e7 e8 c3 12 76 fd 48 8b 53 08 48 c7 c7 60 2b aa 8b 4c 89 f6 48 89 d9 e8 cd 79 6d fc 90 <0f> 0b 4c 89 f7 e8 d2 76 55 fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 93 RSP: 0018:ffffc90005e7f7d0 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffffc9000e1b9000 RCX: 2b2f9944455c7300 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff92001c37201 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed10170c48fb R12: ffffc9000e1b9008 R13: dffffc0000000000 R14: ffffffff8e028ce0 R15: ffffc9001bd4e000 FS: 0000000000000000(0000) GS:ffff888125ecd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2b6dfb CR3: 000000000ddb8000 CR4: 00000000003526f0