Warning: Permanently added '10.128.1.95' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.588290] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 28.619145] kvm: emulating exchange as write [ 28.829744] ------------[ cut here ]------------ [ 28.834539] WARNING: CPU: 1 PID: 8000 at arch/x86/kvm/x86.c:7538 kvm_arch_vcpu_ioctl_run+0x145/0x5c80 [ 28.843879] Kernel panic - not syncing: panic_on_warn set ... [ 28.843879] [ 28.851214] CPU: 1 PID: 8000 Comm: syz-executor389 Not tainted 4.14.269-syzkaller #0 [ 28.859063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.868390] Call Trace: [ 28.870966] dump_stack+0x1b2/0x281 [ 28.874568] panic+0x1f9/0x42d [ 28.877736] ? add_taint.cold+0x16/0x16 [ 28.881686] ? kvm_arch_vcpu_ioctl_run+0x145/0x5c80 [ 28.886678] ? kvm_arch_vcpu_ioctl_run+0x145/0x5c80 [ 28.891678] __warn.cold+0x20/0x44 [ 28.895196] ? ist_end_non_atomic+0x10/0x10 [ 28.899487] ? kvm_arch_vcpu_ioctl_run+0x145/0x5c80 [ 28.904479] report_bug+0x208/0x250 [ 28.908080] do_error_trap+0x195/0x2d0 [ 28.911943] ? math_error+0x2d0/0x2d0 [ 28.915718] ? _synchronize_rcu_expedited+0x567/0x770 [ 28.920881] ? call_rcu_sched+0x10/0x10 [ 28.924827] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.929646] invalid_op+0x1b/0x40 [ 28.933080] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x145/0x5c80 [ 28.938673] RSP: 0018:ffff88808fcefaf0 EFLAGS: 00010297 [ 28.944009] RAX: ffff88809ade8600 RBX: ffff8880aaf12000 RCX: ffff88809d95845c [ 28.951253] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88809d958268 [ 28.958500] RBP: ffff88808fcefc40 R08: ffff88809ade8600 R09: 0000000000000001 [ 28.965741] R10: ffff88808fcefc60 R11: 0000000000000000 R12: 0000000000000000 [ 28.972983] R13: ffff88809d958118 R14: 0000000000000000 R15: ffff88809d958040 [ 28.980242] ? synchronize_rcu+0x98/0x130 [ 28.984364] ? kvm_arch_vcpu_runnable+0x530/0x530 [ 28.989180] ? lock_acquire+0x170/0x3f0 [ 28.993126] ? lock_downgrade+0x740/0x740 [ 28.997261] ? kvm_vcpu_ioctl+0x3de/0xc50 [ 29.001381] kvm_vcpu_ioctl+0x3de/0xc50 [ 29.005339] ? kvm_vm_ioctl_check_extension_generic+0xa0/0xa0 [ 29.011196] ? __lock_acquire+0x5fc/0x3f20 [ 29.015404] ? trace_hardirqs_on+0x10/0x10 [ 29.019613] ? trace_hardirqs_on+0x10/0x10 [ 29.023821] ? kvm_vm_ioctl_check_extension_generic+0xa0/0xa0 [ 29.029678] do_vfs_ioctl+0x75a/0xff0 [ 29.033465] ? lock_acquire+0x170/0x3f0 [ 29.037412] ? ioctl_preallocate+0x1a0/0x1a0 [ 29.041791] ? __fget+0x265/0x3e0 [ 29.045215] ? do_vfs_ioctl+0xff0/0xff0 [ 29.049166] ? security_file_ioctl+0x83/0xb0 [ 29.053546] SyS_ioctl+0x7f/0xb0 [ 29.056884] ? do_vfs_ioctl+0xff0/0xff0 [ 29.060829] do_syscall_64+0x1d5/0x640 [ 29.064692] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.069853] RIP: 0033:0x7fb2d32ddba9 [ 29.073537] RSP: 002b:00007fb2d326c308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.081216] RAX: ffffffffffffffda RBX: 00007fb2d3366418 RCX: 00007fb2d32ddba9 [ 29.088471] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 29.095716] RBP: 00007fb2d3366410 R08: 00007fb2d326c700 R09: 0000000000000000 [ 29.102963] R10: 00007fb2d326c700 R11: 0000000000000246 R12: 00007fb2d336641c [ 29.110204] R13: 00007fb2d3333058 R14: 6d766b2f7665642f R15: 0000000000022000 [ 29.117663] Kernel Offset: disabled [ 29.121317] Rebooting in 86400 seconds..