WARNING: CPU: 1 PID: 5216 at drivers/gpu/drm/drm_vblank.c:1269 drm_wait_one_vblank+0x2c0/0x510 drivers/gpu/drm/drm_vblank.c:1269
Modules linked in:

CPU: 1 PID: 5216 Comm: syz-executor371 Not tainted 6.3.0-rc4-syzkaller-00161-g62bad54b26db #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:drm_wait_one_vblank+0x2c0/0x510 drivers/gpu/drm/drm_vblank.c:1269
Code: 85 f6 0f 84 a3 01 00 00 e8 bd 5f e5 fc 4c 89 ef e8 15 a1 73 00 44 89 e1 4c 89 f2 48 c7 c7 60 d1 ba 8a 48 89 c6 e8 40 e6 ad fc <0f> 0b e9 87 fe ff ff e8 94 5f e5 fc 31 ff 4c 89 ee e8 fa 5b e5 fc
RSP: 0018:ffffc90003e4fb40 EFLAGS: 00010282

RAX: 0000000000000000 RBX: 0000000000000e7f RCX: 0000000000000000
RDX: ffff88807bf657c0 RSI: ffffffff814b5fe7 RDI: 0000000000000001
RBP: ffff88801d75c000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88801dd6b010 R14: ffff88801d9ca050 R15: ffff888146de2030
FS:  00007f65d6d03700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f65d6da703b CR3: 0000000027dc8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 drm_fb_helper_ioctl+0x15d/0x1a0 drivers/gpu/drm/drm_fb_helper.c:1422
 do_fb_ioctl+0x31f/0x740 drivers/video/fbdev/core/fbmem.c:1188
 fb_ioctl+0xeb/0x150 drivers/video/fbdev/core/fbmem.c:1202
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f65d6d51c49
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f65d6d032f8 EFLAGS: 00000246
 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f65d6dda4a8 RCX: 00007f65d6d51c49
RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000003
RBP: 00007f65d6dda4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 3062662f7665642f
R13: 00007fff7e814f6f R14: 00007f65d6d03400 R15: 0000000000022000
 </TASK>