------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 kunwind_next_frame_record_meta arch/arm64/kernel/stacktrace.c:216 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 arch_stack_walk+0x458/0x48c arch/arm64/kernel/stacktrace.c:404 Modules linked in: CPU: 0 UID: 0 PID: 1 Comm: init Not tainted 6.12.0-rc3-syzkaller-g9ec59cb3edc7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kunwind_next_frame_record_meta arch/arm64/kernel/stacktrace.c:216 [inline] pc : kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] pc : kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] pc : do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] pc : kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] pc : arch_stack_walk+0x458/0x48c arch/arm64/kernel/stacktrace.c:404 lr : 0x0 sp : ffff8000800076a0 x29: ffff800080007750 x28: 1ffff00010000f58 x27: 00000000ffff8d65 x26: dfff800000000000 x25: ffff0000d77500c0 x24: dfff800000000000 x23: ffff700010000ef0 x22: ffff800080007850 x21: ffff8000800076b8 x20: ffff800080462114 x19: ffff8000800077a0 x18: ffff8000978078c0 x17: ffff800123efd000 x16: ffff80008b490b1c x15: 0000000000000001 x14: 1fffe000366c806a x13: ffff800097807ff0 x12: ffff800097808000 x11: 0000000000000000 x10: ffff0000c1978000 x9 : ffff800097807e9f x8 : ffff800097807fd8 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : fffffffffffffff0 x3 : 0000000000000000 x2 : ffff0000c1978000 x1 : ffff800080029c40 x0 : 0000000000000001 Call trace: kunwind_next_frame_record_meta arch/arm64/kernel/stacktrace.c:216 [inline] (P) kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] (P) kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] (P) do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] (P) kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] (P) arch_stack_walk+0x458/0x48c arch/arm64/kernel/stacktrace.c:404 (P) 0x0 (L) stack_trace_save+0xfc/0x1a0 kernel/stacktrace.c:122 kasan_save_stack+0x40/0x6c mm/kasan/common.c:47 __kasan_record_aux_stack+0xd0/0xec mm/kasan/generic.c:541 kasan_record_aux_stack+0x14/0x20 mm/kasan/generic.c:546 task_work_add+0xb8/0x464 kernel/task_work.c:66 task_tick_mm_cid kernel/sched/core.c:10468 [inline] sched_tick+0x2a8/0x404 kernel/sched/core.c:5605 update_process_times+0x204/0x260 kernel/time/timer.c:2524 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x324/0x478 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x468/0xce0 kernel/time/hrtimer.c:1755 hrtimer_interrupt+0x2c0/0xb64 kernel/time/hrtimer.c:1817 timer_handler drivers/clocksource/arm_arch_timer.c:674 [inline] arch_timer_handler_virt+0x74/0x88 drivers/clocksource/arm_arch_timer.c:685 handle_percpu_devid_irq+0x174/0x308 kernel/irq/chip.c:942 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline] handle_irq_desc kernel/irq/irqdesc.c:692 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:748 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:843 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:894 [inline] gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:938 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:310 __el1_irq arch/arm64/kernel/entry-common.c:560 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) lock_acquire+0x27c/0x728 kernel/locking/lockdep.c:5828 (P) lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline] (L) lock_acquire+0x24c/0x728 kernel/locking/lockdep.c:5827 (L) __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x5c/0x78 kernel/locking/spinlock.c:228 search_binary_handler fs/exec.c:1754 [inline] exec_binprm fs/exec.c:1794 [inline] bprm_execve+0x7f0/0x1490 fs/exec.c:1845 kernel_execve+0x724/0x820 fs/exec.c:2012 run_init_process+0x1bc/0x1ec init/main.c:1390 try_to_run_init_process init/main.c:1397 [inline] kernel_init+0xdc/0x2a0 init/main.c:1525 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/stacktrace.c:223 dump_backtrace+0x980/0x9b0 arch/arm64/kernel/stacktrace.c:477 Modules linked in: CPU: 0 UID: 0 PID: 1 Comm: init Not tainted 6.12.0-rc3-syzkaller-g9ec59cb3edc7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 004003c5 (nzcv DAIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] pc : kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] pc : do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] pc : kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] pc : dump_backtrace+0x980/0x9b0 arch/arm64/kernel/stacktrace.c:477 lr : kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] lr : kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] lr : do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] lr : kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] lr : dump_backtrace+0x980/0x9b0 arch/arm64/kernel/stacktrace.c:477 sp : ffff800080007140 x29: ffff800080007200 x28: ffff80008f81b770 x27: ffff800080007160 x26: ffff800097808000 x25: 0000000000000000 x24: ffff800097807e9f x23: ffff800097807fd8 x22: ffff800080007160 x21: ffff80008b5a7ad8 x20: ffff80008b5a4a20 x19: ffff0000c1978000 x18: 0000000000000008 x17: 0000000000000000 x16: ffff80008b3ca11c x15: ffff700011f0d634 x14: 0000000000010005 x13: 0000000000000002 x12: ffff0000c1978000 x11: 0000000000ff0100 x10: 0000000000ff0100 x9 : 0000000000010005 x8 : ffff0000c1978000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080006838 x4 : ffff80008f8dd8a0 x3 : ffff800080396c78 x2 : 0000000000000000 x1 : ffff80008f81b7b0 x0 : 0000000000000000 Call trace: kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] (P) kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] (P) do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] (P) kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] (P) dump_backtrace+0x980/0x9b0 arch/arm64/kernel/stacktrace.c:477 (P) kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] (L) kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] (L) do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] (L) kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] (L) dump_backtrace+0x980/0x9b0 arch/arm64/kernel/stacktrace.c:477 (L) show_regs+0x34/0x44 arch/arm64/kernel/process.c:248 __warn+0x134/0x6b8 kernel/panic.c:746 __report_bug lib/bug.c:199 [inline] report_bug+0x298/0x5b0 lib/bug.c:219 bug_handler+0x50/0x1fc arch/arm64/kernel/traps.c:1010 call_break_hook arch/arm64/kernel/debug-monitors.c:319 [inline] brk_handler+0x17c/0x2e0 arch/arm64/kernel/debug-monitors.c:326 do_debug_exception+0x1e4/0x398 arch/arm64/mm/fault.c:1002 el1_dbg+0x64/0x80 arch/arm64/kernel/entry-common.c:490 el1h_64_sync_handler+0x40/0xcc arch/arm64/kernel/entry-common.c:536 el1h_64_sync+0x6c/0x70 arch/arm64/kernel/entry.S:595 kunwind_next_frame_record_meta arch/arm64/kernel/stacktrace.c:216 [inline] (P) kunwind_next_frame_record arch/arm64/kernel/stacktrace.c:248 [inline] (P) kunwind_next arch/arm64/kernel/stacktrace.c:278 [inline] (P) do_kunwind arch/arm64/kernel/stacktrace.c:309 [inline] (P) kunwind_stack_walk arch/arm64/kernel/stacktrace.c:380 [inline] (P) arch_stack_walk+0x458/0x48c arch/arm64/kernel/stacktrace.c:404 (P) 0x0 (L) stack_trace_save+0xfc/0x1a0 kernel/stacktrace.c:122 kasan_save_stack+0x40/0x6c mm/kasan/common.c:47 __kasan_record_aux_stack+0xd0/0xec mm/kasan/generic.c:541 kasan_record_aux_stack+0x14/0x20 mm/kasan/generic.c:546 task_work_add+0xb8/0x464 kernel/task_work.c:66 task_tick_mm_cid kernel/sched/core.c:10468 [inline] sched_tick+0x2a8/0x404 kernel/sched/core.c:5605 update_process_times+0x204/0x260 kernel/time/timer.c:2524 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x324/0x478 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x468/0xce0 kernel/time/hrtimer.c:1755 hrtimer_interrupt+0x2c0/0xb64 kernel/time/hrtimer.c:1817 timer_handler drivers/clocksource/arm_arch_timer.c:674 [inline] arch_timer_handler_virt+0x74/0x88 drivers/clocksource/arm_arch_timer.c:685 handle_percpu_devid_irq+0x174/0x308 kernel/irq/chip.c:942 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline] handle_irq_desc kernel/irq/irqdesc.c:692 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:748 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:843 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:894 [inline] gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:938 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:310 __el1_irq arch/arm64/kernel/entry-common.c:560 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) lock_acquire+0x27c/0x728 kernel/locking/lockdep.c:5828 (P) lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline] (L) lock_acquire+0x24c/0x728 kernel/locking/lockdep.c:5827 (L) __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x5c/0x78 kernel/locking/spinlock.c:228 search_binary_handler fs/exec.c:1754 [inline] exec_binprm fs/exec.c:1794 [inline] bprm_execve+0x7f0/0x1490 fs/exec.c:1845 kernel_execve+0x724/0x820 fs/exec.c:2012 run_init_process+0x1bc/0x1ec init/main.c:1390 try_to_run_init_process init/main.c:1397 [inline] kernel_init+0xdc/0x2a0 init/main.c:1525 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 1351390 hardirqs last enabled at (1351389): [] get_random_u64+0x338/0x584 drivers/char/random.c:554 hardirqs last disabled at (1351390): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (1351390): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (1350912): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1350910): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- irq event stamp: 1351390 hardirqs last enabled at (1351389): [] get_random_u64+0x338/0x584 drivers/char/random.c:554 hardirqs last disabled at (1351390): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (1351390): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (1350912): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1350910): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- vkms_vblank_simulate: vblank timer overrun