------------[ cut here ]------------ platform vkms: [drm] vblank wait timed out on crtc 0 WARNING: CPU: 0 PID: 8444 at drivers/gpu/drm/drm_vblank.c:1307 drm_wait_one_vblank+0x97c/0xa00 drivers/gpu/drm/drm_vblank.c:1307 Modules linked in: CPU: 0 UID: 0 PID: 8444 Comm: syz.6.508 Not tainted 6.12.0-rc4-syzkaller-00261-g850925a8133c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:drm_wait_one_vblank+0x97c/0xa00 drivers/gpu/drm/drm_vblank.c:1307 Code: 80 3c 08 00 74 08 4c 89 ff e8 b0 18 93 fc 49 8b 1f 48 c7 c7 a0 9b 73 8c 4c 89 f6 48 89 da 8b 5c 24 0c 89 d9 e8 15 52 ea fb 90 <0f> 0b 90 90 49 be 00 00 00 00 00 fc ff df e9 68 fb ff ff 44 89 e9 RSP: 0018:ffffc90004377ac0 EFLAGS: 00010246 RAX: 4c6786111592e600 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000e3f9000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90004377c00 R08: ffffffff8155e452 R09: 1ffffffff285990b R10: dffffc0000000000 R11: fffffbfff285990c R12: 1ffff9200086ef64 R13: 0000000000003ac2 R14: ffffffff8c86da60 R15: ffff8881423d9010 FS: 00007f4ab6f886c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c37f3cf CR3: 00000000560f8000 CR4: 0000000000350ef0 Call Trace: drm_fb_helper_ioctl+0x114/0x140 drivers/gpu/drm/drm_fb_helper.c:1093 do_fb_ioctl+0x40c/0x7b0 drivers/video/fbdev/core/fb_chrdev.c:155 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ab617e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4ab6f88038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4ab6336130 RCX: 00007f4ab617e719 RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000006 RBP: 00007f4ab61f132e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4ab6336130 R15: 00007fffeac73fe8