WARNING: CPU: 1 PID: 5900 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: 1 UID: 0 PID: 5900 Comm: syz.1.8 Not tainted 6.12.0-syzkaller-12113-gbcc8eda6d349 #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 f0 2a 91 fc 49 8b 1f 48 c7 c7 c0 e9 71 8c 4c 89 f6 48 89 da 8b 5c 24 0c 89 d9 e8 e5 ea e6 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:ffffc9000423fac0 EFLAGS: 00010246
RAX: 6b84ae327df75f00 RBX: 0000000000000000 RCX: ffff88802c6c3c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000423fc00 R08: ffffffff81601c02 R09: 1ffffffff285711b
R10: dffffc0000000000 R11: fffffbfff285711c R12: 1ffff92000847f64
R13: 0000000000001046 R14: ffffffff8c8545e0 R15: ffff88802516e010
FS:  00007f57f1ed26c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056209906f308 CR3: 000000007f494000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 drm_fb_helper_ioctl+0x114/0x140 drivers/gpu/drm/drm_fb_helper.c:1099
 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:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 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: 0033:0x7f57f1180849
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:00007f57f1ed2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f57f1345fa0 RCX: 00007f57f1180849
RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000003
RBP: 00007f57f1ed20a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f57f1345fa0 R15: 00007f57f146fa38
 </TASK>