------------[ cut here ]------------
WARNING: CPU: 1 PID: 4896 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x119/0x130 drivers/gpu/drm/vkms/vkms_crtc.c:21
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 4896 Comm: syz-executor.0 Not tainted 5.9.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x57/0x70 lib/dump_stack.c:118
 panic+0xf6/0x2c5 kernel/panic.c:231
 __warn.cold.14+0x20/0x2f kernel/panic.c:600
 report_bug+0xbd/0xf0 lib/bug.c:198
 handle_bug+0x40/0x70 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x13/0x60 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:vkms_vblank_simulate+0x119/0x130 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: b2 82 e8 5a fe e8 ff e9 5a ff ff ff 48 8b 95 b0 01 00 00 4c 89 e9 bf 02 00 00 00 48 c7 c6 f8 1b b2 82 e8 aa fd e8 ff eb 90 90 <0f> 0b 90 e9 18 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
RSP: 0018:ffffc900000a0ef0 EFLAGS: 00010002
RAX: 0000000000004705 RBX: ffff888233fe3e40 RCX: 0000000000000000
RDX: 0000000947748cda RSI: 0000000000000000 RDI: ffff888233fe3e40
RBP: 0000000000000000 R08: 0000000000004700 R09: 0000000947748cd9
R10: 0000000000000001 R11: 0000000947748cd9 R12: ffff888237d1e280
R13: ffff888233fe2d40 R14: ffff888237d1e280 R15: ffffffff818e1820
 __run_hrtimer kernel/time/hrtimer.c:1524 [inline]
 __hrtimer_run_queues+0x131/0x370 kernel/time/hrtimer.c:1588
 hrtimer_interrupt+0xef/0x200 kernel/time/hrtimer.c:1650
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x78/0x170 arch/x86/kernel/apic/apic.c:1097
 asm_call_on_stack+0x12/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0x6d/0x80 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:_raw_spin_unlock_irq+0x1c/0x20 kernel/locking/spinlock.c:200
Code: 00 00 5b e9 46 4a 00 ff 66 0f 1f 44 00 00 53 48 8b 74 24 08 48 89 fb 48 8d 7f 18 e8 4e 3a 05 ff 48 89 df e8 96 80 05 ff fb 5b <c3> 0f 1f 00 55 48 89 f5 53 48 8b 74 24 10 48 89 fb 48 8d 7f 18 e8
RSP: 0018:ffffc900008bfbb8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffc900008bfb74
RDX: ffff888234cf3000 RSI: ffff888233fe3eb0 RDI: ffff888233fe3e98
RBP: 0000000000000000 R08: ffff888233fe23d8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88821d787840
R13: 0000000000000002 R14: ffff88821d787898 R15: 0000000000000001
 drm_atomic_helper_commit_planes+0x1a3/0x200 drivers/gpu/drm/drm_atomic_helper.c:2582
 vkms_atomic_commit_tail+0x23/0xa0 drivers/gpu/drm/vkms/vkms_drv.c:61
 commit_tail+0x8f/0x120 drivers/gpu/drm/drm_atomic_helper.c:1663
 drm_atomic_helper_commit drivers/gpu/drm/drm_atomic_helper.c:1882 [inline]
 drm_atomic_helper_commit+0x13b/0x160 drivers/gpu/drm/drm_atomic_helper.c:1815
 drm_atomic_helper_set_config+0x6d/0xb0 drivers/gpu/drm/drm_atomic_helper.c:3026
 drm_mode_setcrtc+0x1f3/0x720 drivers/gpu/drm/drm_crtc.c:736
 drm_ioctl_kernel+0xaa/0xf0 drivers/gpu/drm/drm_ioctl.c:787
 drm_ioctl+0x20f/0x3ce drivers/gpu/drm/drm_ioctl.c:887
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x7f/0xb0 fs/ioctl.c:739
 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fd6c1317da9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd6c0e990c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd6c1445f80 RCX: 00007fd6c1317da9
RDX: 0000000020000300 RSI: 00000000c06864a2 RDI: 0000000000000003
RBP: 00007fd6c136447a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007fd6c1445f80 R15: 00007fffc20effb8
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	5b                   	pop    %rbx
   3:	e9 46 4a 00 ff       	jmp    0xff004a4e
   8:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
   e:	53                   	push   %rbx
   f:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  14:	48 89 fb             	mov    %rdi,%rbx
  17:	48 8d 7f 18          	lea    0x18(%rdi),%rdi
  1b:	e8 4e 3a 05 ff       	call   0xff053a6e
  20:	48 89 df             	mov    %rbx,%rdi
  23:	e8 96 80 05 ff       	call   0xff0580be
  28:	fb                   	sti
  29:	5b                   	pop    %rbx
* 2a:	c3                   	ret <-- trapping instruction
  2b:	0f 1f 00             	nopl   (%rax)
  2e:	55                   	push   %rbp
  2f:	48 89 f5             	mov    %rsi,%rbp
  32:	53                   	push   %rbx
  33:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  38:	48 89 fb             	mov    %rdi,%rbx
  3b:	48 8d 7f 18          	lea    0x18(%rdi),%rdi
  3f:	e8                   	.byte 0xe8