WARNING: CPU: 0 PID: 16654 at drivers/gpu/drm/drm_vblank.c:1307 drm_wait_one_vblank+0x334/0x550 drivers/gpu/drm/drm_vblank.c:1307
Modules linked in:
CPU: 0 UID: 0 PID: 16654 Comm: syz.2.2758 Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:drm_wait_one_vblank+0x334/0x550 drivers/gpu/drm/drm_vblank.c:1307
Code: 85 ed 0f 84 54 01 00 00 e8 59 f4 58 fc 4c 89 e7 e8 d1 3c 8b 00 89 e9 4c 89 ea 48 c7 c7 80 de e8 8b 48 89 c6 e8 0d 23 19 fc 90 <0f> 0b 90 90 e9 0d fe ff ff e8 2e f4 58 fc 90 48 8d 7b 08 48 b8 00
RSP: 0018:ffffc90004247b28 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888025540000 RCX: ffffffff817a1229
RDX: ffff888030a60000 RSI: ffffffff817a1236 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000006 R12: ffff888142f83010
R13: ffff888024a43d00 R14: 1ffff92000848f67 R15: 000000000000c9fd
FS:  00007fe72f1a86c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f51eff8 CR3: 0000000012974000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 drm_fb_helper_ioctl+0x156/0x1a0 drivers/gpu/drm/drm_fb_helper.c:1099
 do_fb_ioctl+0x3d4/0x7d0 drivers/video/fbdev/core/fb_chrdev.c:155
 fb_ioctl+0xe5/0x150 drivers/video/fbdev/core/fb_chrdev.c:169
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe72e38d169
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:00007fe72f1a8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe72e5a5fa0 RCX: 00007fe72e38d169
RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000004
RBP: 00007fe72f1a8090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fe72e5a5fa0 R15: 00007ffc302a9c48
 </TASK>