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WARNING: CPU: 1 PID: 3065 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x150/0x154 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 3065 Comm: udevd Not tainted 5.12.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<81802550>] (dump_backtrace) from [<818027c4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252)
 r7:00000080 r6:600f0193 r5:00000000 r4:82b58344
[<818027ac>] (show_stack) from [<81809e98>] (__dump_stack lib/dump_stack.c:79 [inline])
[<818027ac>] (show_stack) from [<81809e98>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120)
[<81809de0>] (dump_stack) from [<81803358>] (panic+0x130/0x378 kernel/panic.c:231)
 r7:81f48198 r6:82a390a4 r5:00000000 r4:82c6b0d0
[<81803228>] (panic) from [<802446f4>] (__warn+0xb0/0x164 kernel/panic.c:605)
 r3:82a2248c r2:00000000 r1:00000000 r0:81f48198
 r7:00000015
[<80244644>] (__warn) from [<81803608>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:628)
 r7:809fa964 r6:00000015 r5:81fcbd70 r4:00000000
[<818035a4>] (warn_slowpath_fmt) from [<809fa964>] (vkms_vblank_simulate+0x150/0x154 drivers/gpu/drm/vkms/vkms_crtc.c:21)
 r8:00fe4c00 r7:840b6720 r6:82a22498 r5:00000000 r4:840b7390
[<809fa814>] (vkms_vblank_simulate) from [<80307ebc>] (__run_hrtimer kernel/time/hrtimer.c:1537 [inline])
[<809fa814>] (vkms_vblank_simulate) from [<80307ebc>] (__hrtimer_run_queues+0xd4/0x690 kernel/time/hrtimer.c:1601)
 r9:85822000 r8:ddfdb3e0 r7:ddfdb380 r6:82a22498 r5:00000000 r4:840b7390
[<80307de8>] (__hrtimer_run_queues) from [<80308da0>] (hrtimer_interrupt+0x14c/0x2e0 kernel/time/hrtimer.c:1663)
 r10:ddfdb4d8 r9:ddfdb498 r8:ddfdb458 r7:ddfdb4a0 r6:ddfdb4e0 r5:200f0193
 r4:ddfdb380
[<80308c54>] (hrtimer_interrupt) from [<8114c308>] (timer_handler drivers/clocksource/arm_arch_timer.c:647 [inline])
[<80308c54>] (hrtimer_interrupt) from [<8114c308>] (arch_timer_handler_virt+0x30/0x38 drivers/clocksource/arm_arch_timer.c:658)
 r10:85823aa0 r9:85823b08 r8:85823a70 r7:8348d940 r6:82a22c34 r5:0000001c
 r4:8348b000
[<8114c2d8>] (arch_timer_handler_virt) from [<802df904>] (handle_percpu_devid_irq+0xa4/0x19c kernel/irq/chip.c:930)
[<802df860>] (handle_percpu_devid_irq) from [<802d8730>] (generic_handle_irq_desc include/linux/irqdesc.h:158 [inline])
[<802df860>] (handle_percpu_devid_irq) from [<802d8730>] (generic_handle_irq kernel/irq/irqdesc.c:652 [inline])
[<802df860>] (handle_percpu_devid_irq) from [<802d8730>] (__handle_domain_irq+0xb0/0x120 kernel/irq/irqdesc.c:689)
 r10:85823aa0 r9:85823b08 r8:00000001 r7:00000000 r6:828ad498 r5:00000000
 r4:828ad498 r3:00010000
[<802d8680>] (__handle_domain_irq) from [<8088af70>] (handle_domain_irq include/linux/irqdesc.h:176 [inline])
[<802d8680>] (__handle_domain_irq) from [<8088af70>] (gic_handle_irq+0x84/0xac drivers/irqchip/irq-gic.c:370)
 r10:00000000 r9:85822000 r8:e000200c r7:828ad4bc r6:e0002000 r5:85823b08
 r4:82a22c34
[<8088aeec>] (gic_handle_irq) from [<80200abc>] (__irq_svc+0x5c/0x94 arch/arm/kernel/entry-armv.S:205)
Exception stack(0x85823b08 to 0x85823b50)
3b00:                   856d3a48 00000002 00000000 00000005 000002d5 856d3a40
3b20: 85823c34 00000000 85823c28 00000001 00000000 85823b74 858f4040 85823b58
3b40: 807283f8 807338e8 800f0013 ffffffff
 r9:85822000 r8:85823c28 r7:85823b3c r6:ffffffff r5:800f0013 r4:807338e8
[<80733824>] (tomoyo_domain_quota_is_ok) from [<807283f8>] (tomoyo_supervisor+0xd8/0x5a0 security/tomoyo/common.c:2089)
 r7:00000000 r6:81f97e80 r5:81f97e80 r4:85823c34
[<80728320>] (tomoyo_supervisor) from [<8072ccac>] (tomoyo_audit_path_log security/tomoyo/file.c:168 [inline])
[<80728320>] (tomoyo_supervisor) from [<8072ccac>] (tomoyo_path_permission security/tomoyo/file.c:587 [inline])
[<80728320>] (tomoyo_supervisor) from [<8072ccac>] (tomoyo_path_permission+0x98/0xa4 security/tomoyo/file.c:573)
 r3:85bd3500 r2:821137a0 r1:81f97e80
 r10:00000000 r9:00000001 r8:85823c28 r7:81ac85f4 r6:8072ceec r5:81f97e80
 r4:85823c34
[<8072cc14>] (tomoyo_path_permission) from [<8072d7a8>] (tomoyo_check_open_permission+0x1c8/0x1e8 security/tomoyo/file.c:777)
 r9:00000004 r8:856d3a40 r7:00024800 r6:00000000 r5:858c48c8 r4:00000001
[<8072d5e0>] (tomoyo_check_open_permission) from [<80732370>] (tomoyo_file_open security/tomoyo/tomoyo.c:313 [inline])
[<8072d5e0>] (tomoyo_check_open_permission) from [<80732370>] (tomoyo_file_open+0x44/0x48 security/tomoyo/tomoyo.c:308)
 r9:858c48c8 r8:00000000 r7:85823e58 r6:82a3c39c r5:858c48c0 r4:858c48c0
[<8073232c>] (tomoyo_file_open) from [<806f3134>] (security_file_open+0x34/0x168 security/security.c:1589)
 r5:858c48c0 r4:82128ca4
[<806f3100>] (security_file_open) from [<804d55f8>] (do_dentry_open+0xe4/0x3e8 fs/open.c:813)
 r5:86157400 r4:858c48c0
[<804d5514>] (do_dentry_open) from [<804d7564>] (vfs_open+0x34/0x38 fs/open.c:940)
 r9:00000000 r8:858c48c0 r7:85823e58 r6:82a3c39c r5:85823f20 r4:00024800
[<804d7530>] (vfs_open) from [<804ec9dc>] (do_open fs/namei.c:3365 [inline])
[<804d7530>] (vfs_open) from [<804ec9dc>] (path_openat+0x5b0/0x10f8 fs/namei.c:3498)
[<804ec42c>] (path_openat) from [<804ef4ac>] (do_filp_open+0x7c/0x12c fs/namei.c:3525)
 r10:00000142 r9:85822000 r8:80200224 r7:00000003 r6:85823f20 r5:85823e58
 r4:85823f58
[<804ef430>] (do_filp_open) from [<804d782c>] (do_sys_openat2+0xa8/0x160 fs/open.c:1187)
 r7:ffffff9c r6:0000000d r5:8358c000 r4:85823f58
[<804d7784>] (do_sys_openat2) from [<804d7cd0>] (do_sys_open fs/open.c:1203 [inline])
[<804d7784>] (do_sys_openat2) from [<804d7cd0>] (__do_sys_openat fs/open.c:1219 [inline])
[<804d7784>] (do_sys_openat2) from [<804d7cd0>] (sys_openat+0xa4/0xcc fs/open.c:1214)
 r7:00000142 r6:002a2b20 r5:002909b0 r4:ffffff9c
[<804d7c2c>] (sys_openat) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64)
Exception stack(0x85823fa8 to 0x85823ff0)
3fa0:                   002cfab8 002cf7c0 ffffff9c 002909b0 000a4800 00000000
3fc0: 002cfab8 002cf7c0 002a2b20 00000142 000000ff 0004043f 7efcc58c 000000ff
3fe0: 00056050 7efcc538 76bfe560 76c31a94
 r5:002cf7c0 r4:002cfab8
Rebooting in 86400 seconds..