lenovo 0003:17EF:60A3.0019: unbalanced collection at end of report description lenovo 0003:17EF:60A3.0019: hid_parse failed lenovo 0003:17EF:60A3.0019: probe with driver lenovo failed with error -22 ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1318 at drm_wait_one_vblank+0x2e6/0x5a0 drivers/gpu/drm/drm_vblank.c:1318, CPU#0: kworker/0:8/12930 Modules linked in: CPU: 0 UID: 0 PID: 12930 Comm: kworker/0:8 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 Workqueue: events drm_fb_helper_damage_work RIP: 0010:drm_wait_one_vblank+0x2ec/0x5a0 drivers/gpu/drm/drm_vblank.c:1318 Code: 4c 8b 6d 50 4d 85 ed 0f 84 36 02 00 00 e8 1c b1 77 fc 48 89 ef e8 b4 d2 8e 00 48 89 c6 48 8d 3d aa d9 32 0b 44 89 e1 4c 89 ea <67> 48 0f b9 3a e9 53 fe ff ff e8 f5 b0 77 fc 48 89 ef e8 3d 3e ea RSP: 0018:ffffc90004f8fa10 EFLAGS: 00010293 RAX: ffffffff8c2b97e0 RBX: ffff888025dbe000 RCX: 0000000000000000 RDX: ffffffff8c298580 RSI: ffffffff8c2b97e0 RDI: ffffffff90c22440 RBP: ffff888140f5d000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff8c298580 R14: 1ffff920009f1f45 R15: 000000000001b580 FS: 0000000000000000(0000) GS:ffff8881245d9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000277000 CR3: 000000005268a000 CR4: 00000000003526f0 Call Trace: drm_client_modeset_wait_for_vblank+0xef/0x120 drivers/gpu/drm/drm_client_modeset.c:1330 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:334 [inline] drm_fb_helper_damage_work+0x164/0x640 drivers/gpu/drm/drm_fb_helper.c:372 process_one_work+0x9c2/0x1840 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x5da/0xe40 kernel/workqueue.c:3421 kthread+0x3b3/0x730 kernel/kthread.c:463 ret_from_fork+0x754/0xaf0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- Code disassembly (best guess): 0: 4c 8b 6d 50 mov 0x50(%rbp),%r13 4: 4d 85 ed test %r13,%r13 7: 0f 84 36 02 00 00 je 0x243 d: e8 1c b1 77 fc call 0xfc77b12e 12: 48 89 ef mov %rbp,%rdi 15: e8 b4 d2 8e 00 call 0x8ed2ce 1a: 48 89 c6 mov %rax,%rsi 1d: 48 8d 3d aa d9 32 0b lea 0xb32d9aa(%rip),%rdi # 0xb32d9ce 24: 44 89 e1 mov %r12d,%ecx 27: 4c 89 ea mov %r13,%rdx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 53 fe ff ff jmp 0xfffffe87 34: e8 f5 b0 77 fc call 0xfc77b12e 39: 48 89 ef mov %rbp,%rdi 3c: e8 .byte 0xe8 3d: 3d .byte 0x3d 3e: 3e ea ds (bad)