------------[ cut here ]------------ kernel BUG at arch/x86/kvm/mmu/mmu.c:3722! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8993 Comm: syz-executor.3 Not tainted 5.7.0-rc6-next-20200522-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mmu_alloc_direct_roots arch/x86/kvm/mmu/mmu.c:3722 [inline] RIP: 0010:mmu_alloc_roots arch/x86/kvm/mmu/mmu.c:3822 [inline] RIP: 0010:kvm_mmu_load+0xbfa/0xe00 arch/x86/kvm/mmu/mmu.c:5155 Code: 9c 5f 99 00 48 8b 44 24 08 e9 cf f5 ff ff e8 5d 5f 99 00 e9 b7 f4 ff ff 4c 89 f7 e8 80 5f 99 00 e9 78 f4 ff ff e8 16 4c 5a 00 <0f> 0b 48 89 df e8 6c 5f 99 00 e9 7e f8 ff ff e8 62 5f 99 00 e9 c4 RSP: 0018:ffffc90004bf7b10 EFLAGS: 00010212 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000fc7d000 RDX: 000000000000cc1b RSI: ffffffff81195b4a RDI: 0000000000000001 RBP: ffff888097ae0040 R08: ffff8880974c21c0 R09: ffffed1015cc717c R10: ffff8880ae638bdb R11: ffffed1015cc717b R12: 0000000000000000 R13: 0000000000000001 R14: ffff888097ae0458 R15: 0000000000000000 FS: 00007fd3b2788700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055eeeb2a6080 CR3: 0000000092c77000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_mmu_reload arch/x86/kvm/mmu.h:81 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:8385 [inline] vcpu_run arch/x86/kvm/x86.c:8596 [inline] kvm_arch_vcpu_ioctl_run+0x4022/0x6920 arch/x86/kvm/x86.c:8819 kvm_vcpu_ioctl+0x46a/0xe20 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3149 vfs_ioctl fs/ioctl.c:48 [inline] ksys_ioctl+0x11a/0x180 fs/ioctl.c:753 __do_sys_ioctl fs/ioctl.c:762 [inline] __se_sys_ioctl fs/ioctl.c:760 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:760 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45ca29 Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd3b2787c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e7fc0 RCX: 000000000045ca29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000003c6 R14: 00000000004c6703 R15: 00007fd3b27886d4 Modules linked in: ---[ end trace 1948a006f8bc19fe ]--- RIP: 0010:mmu_alloc_direct_roots arch/x86/kvm/mmu/mmu.c:3722 [inline] RIP: 0010:mmu_alloc_roots arch/x86/kvm/mmu/mmu.c:3822 [inline] RIP: 0010:kvm_mmu_load+0xbfa/0xe00 arch/x86/kvm/mmu/mmu.c:5155 Code: 9c 5f 99 00 48 8b 44 24 08 e9 cf f5 ff ff e8 5d 5f 99 00 e9 b7 f4 ff ff 4c 89 f7 e8 80 5f 99 00 e9 78 f4 ff ff e8 16 4c 5a 00 <0f> 0b 48 89 df e8 6c 5f 99 00 e9 7e f8 ff ff e8 62 5f 99 00 e9 c4 RSP: 0018:ffffc90004bf7b10 EFLAGS: 00010212 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000fc7d000 RDX: 000000000000cc1b RSI: ffffffff81195b4a RDI: 0000000000000001 RBP: ffff888097ae0040 R08: ffff8880974c21c0 R09: ffffed1015cc717c R10: ffff8880ae638bdb R11: ffffed1015cc717b R12: 0000000000000000 R13: 0000000000000001 R14: ffff888097ae0458 R15: 0000000000000000 FS: 00007fd3b2788700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f97d2183db8 CR3: 0000000092c77000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400