BUG: unable to handle kernel paging request at ffff88805d269000 #PF error: [PROT] [WRITE] [RSVD] PGD b201067 P4D b201067 PUD 85f6d063 PMD a958d063 PTE 800000005d269163 Oops: 000b [#1] PREEMPT SMP KASAN CPU: 0 PID: 19851 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__write_once_size include/linux/compiler.h:220 [inline] RIP: 0010:__update_clear_spte_fast arch/x86/kvm/mmu.c:547 [inline] RIP: 0010:mmu_spte_clear_no_track arch/x86/kvm/mmu.c:848 [inline] RIP: 0010:drop_parent_pte arch/x86/kvm/mmu.c:2040 [inline] RIP: 0010:mmu_page_zap_pte+0x18a/0x250 arch/x86/kvm/mmu.c:2618 Code: 8b 73 28 4c 89 e7 48 83 c6 48 e8 b1 3f ff ff 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 a4 00 00 00 <49> c7 04 24 00 00 00 00 41 be 01 00 00 00 e9 fd fe ff ff e8 9e 4a RSP: 0018:ffff8881ec09fb40 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffea0001641300 RCX: ffffc90008205000 RDX: 1ffff1100ba4d200 RSI: ffffffff810ed6f4 RDI: 0000000000000007 RBP: ffff8881ec09fb68 R08: ffff88808f5f2080 R09: ffffed1015d05bd0 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: ffff88805d269000 R13: 0000000000000004 R14: ffffc900019bb000 R15: 0000000000000000 FS: 00007fe5eca9f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88805d269000 CR3: 00000000a44c8000 CR4: 00000000001426f0 Call Trace: kvm_mmu_page_unlink_children arch/x86/kvm/mmu.c:2635 [inline] kvm_mmu_prepare_zap_page+0x163/0x1170 arch/x86/kvm/mmu.c:2679 kvm_zap_obsolete_pages arch/x86/kvm/mmu.c:5844 [inline] kvm_mmu_invalidate_zap_all_pages+0x3ca/0x550 arch/x86/kvm/mmu.c:5885 kvm_arch_flush_shadow_all+0x16/0x20 arch/x86/kvm/x86.c:9465 kvm_mmu_notifier_release+0x5c/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:494 mmu_notifier_unregister+0x137/0x410 mm/mmu_notifier.c:356 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:744 [inline] kvm_put_kvm+0x553/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:769 kvm_vcpu_release+0x7b/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2495 __fput+0x2df/0x8d0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x14a/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x273/0x2c0 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+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 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 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe5eca9d098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007fe5eca9d830 RCX: 0000000000457c97 RDX: 00007fe5eca9d830 RSI: 000000004008ae90 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000090 R09: 00000000000000a8 R10: 00000000000000b3 R11: 0000000000000246 R12: 0000000000000008 R13: 0000000020fe8000 R14: 00000000004dbbe8 R15: 00000000ffffffff Modules linked in: CR2: ffff88805d269000 ---[ end trace 1ea35a64af4f753c ]--- RIP: 0010:__write_once_size include/linux/compiler.h:220 [inline] RIP: 0010:__update_clear_spte_fast arch/x86/kvm/mmu.c:547 [inline] RIP: 0010:mmu_spte_clear_no_track arch/x86/kvm/mmu.c:848 [inline] RIP: 0010:drop_parent_pte arch/x86/kvm/mmu.c:2040 [inline] RIP: 0010:mmu_page_zap_pte+0x18a/0x250 arch/x86/kvm/mmu.c:2618 Code: 8b 73 28 4c 89 e7 48 83 c6 48 e8 b1 3f ff ff 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 a4 00 00 00 <49> c7 04 24 00 00 00 00 41 be 01 00 00 00 e9 fd fe ff ff e8 9e 4a RSP: 0018:ffff8881ec09fb40 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffea0001641300 RCX: ffffc90008205000 RDX: 1ffff1100ba4d200 RSI: ffffffff810ed6f4 RDI: 0000000000000007 RBP: ffff8881ec09fb68 R08: ffff88808f5f2080 R09: ffffed1015d05bd0 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: ffff88805d269000 R13: 0000000000000004 R14: ffffc900019bb000 R15: 0000000000000000 FS: 00007fe5eca9f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88805d269000 CR3: 00000000a44c8000 CR4: 00000000001426f0