------------[ cut here ]------------ platform vkms: [drm] vblank wait timed out on crtc 0 WARNING: CPU: 1 PID: 7412 at drivers/gpu/drm/drm_vblank.c:1307 drm_wait_one_vblank+0x976/0x9f0 drivers/gpu/drm/drm_vblank.c:1307 Modules linked in: CPU: 1 UID: 0 PID: 7412 Comm: syz.1.410 Not tainted 6.10.0-syzkaller-12881-g6342649c33d2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:drm_wait_one_vblank+0x976/0x9f0 drivers/gpu/drm/drm_vblank.c:1307 Code: 80 3c 08 00 74 08 4c 89 ff e8 76 0a 9c fc 49 8b 1f 48 c7 c7 e0 f4 72 8c 4c 89 f6 48 89 da 8b 5c 24 0c 89 d9 e8 0b e1 f6 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:ffffc90003f87ac0 EFLAGS: 00010246 RAX: 1af066dba6c5c900 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc900041f9000 RSI: 0000000000031631 RDI: 0000000000031632 RBP: ffffc90003f87c00 R08: ffffffff815592f2 R09: fffffbfff1cf9f80 R10: dffffc0000000000 R11: fffffbfff1cf9f80 R12: 1ffff920007f0f64 R13: 0000000000002635 R14: ffffffff8c861520 R15: ffff888020618010 FS: 00007ff6598ef6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff6598ced58 CR3: 000000004b096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_fb_helper_ioctl+0x114/0x140 drivers/gpu/drm/drm_fb_helper.c:1088 do_fb_ioctl+0x40a/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+0xfc/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: 0033:0x7ff658b77299 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:00007ff6598ef048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff658d05f80 RCX: 00007ff658b77299 RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000003 RBP: 00007ff658be48e6 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff658d05f80 R15: 00007ff658e2fa38