------------[ cut here ]------------ kernel BUG at arch/x86/kvm/mmu/mmu.c:3719! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8159 Comm: syz-executor.1 Not tainted 5.7.0-rc7-next-20200529-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:3719 [inline] RIP: 0010:mmu_alloc_roots arch/x86/kvm/mmu/mmu.c:3819 [inline] RIP: 0010:kvm_mmu_load+0xbfa/0xe00 arch/x86/kvm/mmu/mmu.c:5152 Code: ac 23 99 00 48 8b 44 24 08 e9 cf f5 ff ff e8 6d 23 99 00 e9 b7 f4 ff ff 4c 89 f7 e8 90 23 99 00 e9 78 f4 ff ff e8 56 1a 5a 00 <0f> 0b 48 89 df e8 7c 23 99 00 e9 7e f8 ff ff e8 72 23 99 00 e9 c4 RSP: 0018:ffffc90001767b30 EFLAGS: 00010206 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000453c000 RDX: 0000000000008d60 RSI: ffffffff8118e14a RDI: 0000000000000001 RBP: ffff888085780100 R08: ffff8880855de5c0 R09: ffffed1015cc719c R10: ffff8880ae638cdb R11: ffffed1015cc719b R12: 0000000000000000 R13: 0000000000000001 R14: ffff888085780518 R15: 0000000000000000 FS: 00007f94873de700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000078c000 CR3: 000000008c8e6000 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:8389 [inline] vcpu_run arch/x86/kvm/x86.c:8600 [inline] kvm_arch_vcpu_ioctl_run+0x4016/0x68d0 arch/x86/kvm/x86.c:8823 kvm_vcpu_ioctl+0x467/0xe10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3147 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+0x60/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb19 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:00007f94873ddc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8a00 RCX: 000000000045cb19 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000003d0 R14: 00000000004c68ae R15: 00007f94873de6d4 Modules linked in: ---[ end trace adf7834fcc9d2f71 ]--- RIP: 0010:mmu_alloc_direct_roots arch/x86/kvm/mmu/mmu.c:3719 [inline] RIP: 0010:mmu_alloc_roots arch/x86/kvm/mmu/mmu.c:3819 [inline] RIP: 0010:kvm_mmu_load+0xbfa/0xe00 arch/x86/kvm/mmu/mmu.c:5152 Code: ac 23 99 00 48 8b 44 24 08 e9 cf f5 ff ff e8 6d 23 99 00 e9 b7 f4 ff ff 4c 89 f7 e8 90 23 99 00 e9 78 f4 ff ff e8 56 1a 5a 00 <0f> 0b 48 89 df e8 7c 23 99 00 e9 7e f8 ff ff e8 72 23 99 00 e9 c4 RSP: 0018:ffffc90001767b30 EFLAGS: 00010206 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000453c000 RDX: 0000000000008d60 RSI: ffffffff8118e14a RDI: 0000000000000001 RBP: ffff888085780100 R08: ffff8880855de5c0 R09: ffffed1015cc719c R10: ffff8880ae638cdb R11: ffffed1015cc719b R12: 0000000000000000 R13: 0000000000000001 R14: ffff888085780518 R15: 0000000000000000 FS: 00007f94873de700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055be316e3730 CR3: 000000008c8e6000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400