binder: 7837:7844 ioctl 40046207 0 returned -16
binder_alloc: 7837: binder_alloc_buf, no vma
BUG: unable to handle kernel paging request at ffff8801c470f000
PGD bc01067 P4D bc01067 PUD 1d9be1063 PMD 80000001c46001e3 
Oops: 000b [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7832 Comm: syz-executor1 Not tainted 4.19.0-rc7-next-20181012+ #93
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
------------[ cut here ]------------
RIP: 0010:__update_clear_spte_fast include/linux/compiler.h:206 [inline]
RIP: 0010:mmu_spte_clear_no_track arch/x86/kvm/mmu.c:819 [inline]
RIP: 0010:drop_parent_pte arch/x86/kvm/mmu.c:1998 [inline]
RIP: 0010:mmu_page_zap_pte+0x295/0x390 arch/x86/kvm/mmu.c:2576
downgrading a read lock
Code: 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c7 85 58 ff ff ff 00 00 00 00 48 c1 ea 03 80 3c 02 00 0f 85 d4 00 00 00 48 c1 eb 03 <49> c7 45 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 be 01 00
WARNING: CPU: 1 PID: 7850 at kernel/locking/lockdep.c:3552 __lock_downgrade kernel/locking/lockdep.c:3552 [inline]
WARNING: CPU: 1 PID: 7850 at kernel/locking/lockdep.c:3552 lock_downgrade+0x4d7/0x900 kernel/locking/lockdep.c:3815
RSP: 0018:ffff88018108f150 EFLAGS: 00010a02
Kernel panic - not syncing: panic_on_warn set ...

RAX: dffffc0000000000 RBX: 1ffff10030211e2f RCX: ffffc90003e6a000
RDX: 1ffff100388e1e00 RSI: ffffffff8111203b RDI: 0000000000000007
RBP: ffff88018108f220 R08: ffff8801c2f30500 R09: ffffed003b5c5b4f
R10: ffffed003b5c5b4f R11: ffff8801dae2da7b R12: 1ffff10030211e2b
R13: ffff8801c470f000 R14: 0000000000000004 R15: 0000000000000000
FS:  00007ff008788700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8801c470f000 CR3: 00000001c5494000 CR4: 00000000001426f0
Call Trace:
 kvm_mmu_page_unlink_children arch/x86/kvm/mmu.c:2593 [inline]
 kvm_mmu_prepare_zap_page+0x210/0x1830 arch/x86/kvm/mmu.c:2637
 kvm_zap_obsolete_pages arch/x86/kvm/mmu.c:5727 [inline]
 kvm_mmu_invalidate_zap_all_pages+0x343/0x7a0 arch/x86/kvm/mmu.c:5768
 kvm_arch_flush_shadow_all+0x15/0x20 arch/x86/kvm/x86.c:9215
 kvm_mmu_notifier_release+0x59/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:497
 mmu_notifier_unregister+0x1fa/0x600 mm/mmu_notifier.c:365
 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:747 [inline]
 kvm_put_kvm+0x6c0/0xff0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:772
 kvm_vcpu_release+0x7b/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2406
 __fput+0x3bc/0xa70 fs/file_table.c:279
 ____fput+0x15/0x20 fs/file_table.c:312
 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: 0033:0x4573d7
Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff008786098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 0000000000000018 RCX: 00000000004573d7
RDX: 00007ff0087866f0 RSI: 000000008138ae83 RDI: 0000000000000005
RBP: 0000000020017000 R08: 0000000000000001 R09: 0000000000000028
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000fec00000
R13: 00000000ffffffff R14: 00000000004d7cf8 R15: 00000000ffffffff
Modules linked in:
CR2: ffff8801c470f000
---[ end trace 0b0a0525dec85506 ]---
RIP: 0010:__update_clear_spte_fast include/linux/compiler.h:206 [inline]
RIP: 0010:mmu_spte_clear_no_track arch/x86/kvm/mmu.c:819 [inline]
RIP: 0010:drop_parent_pte arch/x86/kvm/mmu.c:1998 [inline]
RIP: 0010:mmu_page_zap_pte+0x295/0x390 arch/x86/kvm/mmu.c:2576
Code: 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c7 85 58 ff ff ff 00 00 00 00 48 c1 ea 03 80 3c 02 00 0f 85 d4 00 00 00 48 c1 eb 03 <49> c7 45 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 be 01 00
RSP: 0018:ffff88018108f150 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: 1ffff10030211e2f RCX: ffffc90003e6a000
RDX: 1ffff100388e1e00 RSI: ffffffff8111203b RDI: 0000000000000007
RBP: ffff88018108f220 R08: ffff8801c2f30500 R09: ffffed003b5c5b4f
R10: ffffed003b5c5b4f R11: ffff8801dae2da7b R12: 1ffff10030211e2b
R13: ffff8801c470f000 R14: 0000000000000004 R15: 0000000000000000
FS:  00007ff008788700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8801c470f000 CR3: 00000001c5494000 CR4: 00000000001426f0
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..