cp2112 0003:10C4:EA90.001B: hidraw0: USB HID v0.00 Device [HID 10c4:ea90] on usb-dummy_hcd.0-1/input0 cp2112 0003:10C4:EA90.001B: Part Number: 0x82 Device Version: 0xFE cp2112 0003:10C4:EA90.001B: error reading lock byte: -71 usb 1-1: USB disconnect, device number 57 ================================================================== BUG: KASAN: vmalloc-out-of-bounds in __list_add_valid_or_report+0x4e/0x130 lib/list_debug.c:29 Read of size 8 at addr ffffc9000ced9008 by task kworker/0:2/808 CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)} Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 Workqueue: usb_hub_wq hub_event Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xba/0x230 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 __list_add_valid_or_report+0x4e/0x130 lib/list_debug.c:29 __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 The buggy address belongs to a vmalloc virtual mapping Memory state around the buggy address: ffffc9000ced8f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc9000ced8f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc9000ced9000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc9000ced9080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc9000ced9100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================