------------[ cut here ]------------ kernel BUG at arch/x86/kvm/x86.c:357! BUG: unable to handle kernel paging request at ffff88808bd1d000 #PF error: [PROT] [WRITE] [RSVD] PGD b201067 P4D b201067 PUD 21ffff067 PMD 800000008bc001e3 Oops: 000b [#1] PREEMPT SMP KASAN CPU: 0 PID: 7309 Comm: syz-executor.1 Not tainted 5.0.0-rc6+ #76 kobject: 'kvm' (00000000f8287aa3): kobject_uevent_env 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:ffff8880869efb40 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffea00028fcf80 RCX: ffffffff810ed6cb RDX: 1ffff110117a3a00 RSI: ffffffff810ed6f4 RDI: 0000000000000007 RBP: ffff8880869efb68 R08: ffff888050d1a440 R09: ffffed1015d05bd0 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: ffff88808bd1d000 R13: 0000000000000004 R14: ffffc900165ee000 R15: 0000000000000000 FS: 000000000251d940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88808bd1d000 CR3: 00000000a7817000 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: 0033:0x411d31 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:0000000000a4fd90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411d31 RDX: 0000000000000000 RSI: 00000000007418d8 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000149c3b R09: 0000000000149c3b R10: 0000000000a4fcc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000002af R15: 0000000000000001 Modules linked in: CR2: ffff88808bd1d000 ---[ end trace 9a557b77b29444dc ]--- invalid opcode: 0000 [#2] PREEMPT SMP KASAN CPU: 1 PID: 7326 Comm: syz-executor.5 Tainted: G D 5.0.0-rc6+ #76 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 RIP: 0010:kvm_spurious_fault+0x9/0x10 arch/x86/kvm/x86.c:357 RSP: 0018:ffff8880869efb40 EFLAGS: 00010246 Code: e8 9c ce 65 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 77 ce 65 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 RAX: dffffc0000000000 RBX: ffffea00028fcf80 RCX: ffffffff810ed6cb RSP: 0018:ffff88808dc07790 EFLAGS: 00010212 RDX: 1ffff110117a3a00 RSI: ffffffff810ed6f4 RDI: 0000000000000007 RAX: 0000000000040000 RBX: ffff888054443810 RCX: ffffc90010a7d000 RBP: ffff8880869efb68 R08: ffff888050d1a440 R09: ffffed1015d05bd0 RDX: 0000000000000481 RSI: ffffffff810a1309 RDI: 0000000000000007 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: ffff88808bd1d000 R13: 0000000000000004 R14: ffffc900165ee000 R15: 0000000000000000 RBP: ffff88808dc07790 R08: ffff88809ad12480 R09: ffff888092281000 FS: 000000000251d940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 R10: ffffed10124503ff R11: ffff888092281fff R12: 1ffff11011b80ef5 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 R13: ffff888092281000 R14: ffff88808dc07808 R15: 000000000000ae41 CR2: ffff88808bd1d000 CR3: 00000000a7817000 CR4: 00000000001426f0 FS: 00007f7644428700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000