corsair 0003:1B1C:1B02.0002: Failed to get K90 initial state (error -71). usb 1-1: USB disconnect, device number 3 ------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff888079687ac8 object type: work_struct hint: k90_record_led_work+0x0/0x1e0 drivers/hid/hid-corsair.c:-1 WARNING: lib/debugobjects.c:632 at debug_print_object+0xec/0x230 lib/debugobjects.c:629, CPU#0: kworker/0:4/1898 Modules linked in: CPU: 0 UID: 0 PID: 1898 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: usb_hub_wq hub_event RIP: 0010:debug_print_object+0x18a/0x230 lib/debugobjects.c:629 Code: f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 cd 4b 51 fd 4d 8b 0f 4c 89 ef 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f0 ff 34 24 <67> 48 0f b9 3a 48 83 c4 08 ff 05 33 68 74 0b 48 83 c4 10 5b 41 5c RSP: 0018:ffffc9000640efd0 EFLAGS: 00010246 RAX: 1ffffffff17d6f44 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffffffff8c4ca040 RSI: ffffffff8c4c9ac0 RDI: ffffffff90641db0 RBP: ffffffff8c4ca040 R08: ffff888079687ac8 R09: ffffffff8beb8be0 R10: dffffc0000000000 R11: ffffffff818f4a00 R12: 0000000000000000 R13: ffffffff90641db0 R14: ffff888079687ac8 R15: ffffffff8beb7a20 FS: 0000000000000000(0000) GS:ffff888124f0a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d6040bf520 CR3: 000000000e948000 CR4: 00000000003526f0 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:1171 [inline] debug_check_no_obj_freed+0x2e3/0x450 lib/debugobjects.c:1201 slab_free_hook mm/slub.c:2679 [inline] slab_free mm/slub.c:6499 [inline] kfree+0x13e/0x650 mm/slub.c:6792 k90_cleanup_macro_functions drivers/hid/hid-corsair.c:547 [inline] corsair_remove+0xfd/0x260 drivers/hid/hid-corsair.c:602 hid_device_remove+0xc5/0x1c0 drivers/hid/hid-core.c:2901 device_remove drivers/base/dd.c:616 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x48b/0x880 drivers/base/dd.c:1372 bus_remove_device+0x444/0x560 drivers/base/bus.c:664 device_del+0x524/0x8f0 drivers/base/core.c:3965 hid_remove_device drivers/hid/hid-core.c:3130 [inline] hid_destroy_device+0x6b/0x1b0 drivers/hid/hid-core.c:3152 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1479 usb_unbind_interface+0x295/0x9f0 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:618 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x4f5/0x880 drivers/base/dd.c:1372 bus_remove_device+0x444/0x560 drivers/base/bus.c:664 device_del+0x524/0x8f0 drivers/base/core.c:3965 usb_disable_device+0x3d4/0x8d0 drivers/usb/core/message.c:1478 usb_disconnect+0x346/0x9a0 drivers/usb/core/hub.c:2350 hub_port_connect drivers/usb/core/hub.c:5420 [inline] hub_port_connect_change drivers/usb/core/hub.c:5720 [inline] port_event drivers/usb/core/hub.c:5884 [inline] hub_event+0x1bbb/0x4d30 drivers/usb/core/hub.c:5966 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3470 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3551 kthread+0x38b/0x480 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 ---------------- Code disassembly (best guess): 0: f8 clc 1: 48 c1 e8 03 shr $0x3,%rax 5: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 9: 74 08 je 0x13 b: 4c 89 ff mov %r15,%rdi e: e8 cd 4b 51 fd call 0xfd514be0 13: 4d 8b 0f mov (%r15),%r9 16: 4c 89 ef mov %r13,%rdi 19: 48 8b 74 24 08 mov 0x8(%rsp),%rsi 1e: 48 89 ea mov %rbp,%rdx 21: 44 89 e1 mov %r12d,%ecx 24: 4d 89 f0 mov %r14,%r8 27: ff 34 24 push (%rsp) * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 48 83 c4 08 add $0x8,%rsp 33: ff 05 33 68 74 0b incl 0xb746833(%rip) # 0xb74686c 39: 48 83 c4 10 add $0x10,%rsp 3d: 5b pop %rbx 3e: 41 5c pop %r12