WARNING: CPU: 0 PID: 12675 at arch/x86/kvm/mmu.c:830 mmu_spte_clear_track_bits+0x45f/0x520 arch/x86/kvm/mmu.c:830
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 12675 Comm: syz-executor5 Not tainted 4.20.0+ #175
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop4' (00000000bb8c2719): kobject_uevent_env
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
kobject: 'loop4' (00000000bb8c2719): fill_kobj_path: path = '/devices/virtual/block/loop4'
 panic+0x2ad/0x55f kernel/panic.c:189
kobject: 'loop3' (0000000003d3c518): kobject_uevent_env
kobject: 'loop3' (0000000003d3c518): fill_kobj_path: path = '/devices/virtual/block/loop3'
 __warn.cold.8+0x20/0x52 kernel/panic.c:544
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:mmu_spte_clear_track_bits+0x45f/0x520 arch/x86/kvm/mmu.c:830
kobject: 'loop2' (00000000a6ef60b6): kobject_uevent_env
Code: 40 ff ff ff 31 ff 44 89 fe 48 ba 00 00 00 00 00 fc ff df c6 04 10 f8 e8 ff a9 70 00 45 85 ff 0f 85 65 fd ff ff e8 e1 a8 70 00 <0f> 0b e9 59 fd ff ff e8 d5 a8 70 00 4c 89 ef e8 3d 32 f7 ff 31 f6
RSP: 0018:ffff88804c767068 EFLAGS: 00010293
RAX: ffff88804ca7c6c0 RBX: 40000000459e8c77 RCX: ffffffff81114351
RDX: 0000000000000000 RSI: ffffffff8111435f RDI: 0000000000000005
kobject: 'loop2' (00000000a6ef60b6): fill_kobj_path: path = '/devices/virtual/block/loop2'
RBP: ffff88804c767180 R08: ffff88804ca7c6c0 R09: fffff9400022cf46
R10: fffff9400022cf46 R11: ffffea0001167a37 R12: 1ffff110098ece0f
R13: 00000000000459e8 R14: ffff88804c767158 R15: 0000000000000000
 drop_spte+0x24/0x220 arch/x86/kvm/mmu.c:1468
kobject: 'loop1' (0000000068ddb8b7): kobject_uevent_env
 mmu_page_zap_pte+0x2d3/0x3a0 arch/x86/kvm/mmu.c:2613
kobject: 'loop1' (0000000068ddb8b7): fill_kobj_path: path = '/devices/virtual/block/loop1'
 kvm_mmu_page_unlink_children arch/x86/kvm/mmu.c:2635 [inline]
 kvm_mmu_prepare_zap_page+0x1f9/0x1530 arch/x86/kvm/mmu.c:2679
 kvm_zap_obsolete_pages arch/x86/kvm/mmu.c:5843 [inline]
 kvm_mmu_invalidate_zap_all_pages+0x348/0x7b0 arch/x86/kvm/mmu.c:5884
 kvm_arch_flush_shadow_all+0x15/0x20 arch/x86/kvm/x86.c:9456
 kvm_mmu_notifier_release+0x59/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:494
 mmu_notifier_unregister+0x1fa/0x600 mm/mmu_notifier.c:356
 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:744 [inline]
 kvm_put_kvm+0x6c0/0xff0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:769
 kvm_vcpu_release+0x7b/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2491
 __fput+0x385/0xa50 fs/file_table.c:278
 ____fput+0x15/0x20 fs/file_table.c:309
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x411c91
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 94 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffc80b439a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411c91
RDX: 0000000000000000 RSI: 0000000000741370 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc80b438d0 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00000000000000dd R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..