[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 35.784166][ T6752] bash (6752) used greatest stack depth: 24464 bytes left Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts. executing program [ 42.939156][ T6785] 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. [ 42.981984][ T6785] ------------[ cut here ]------------ [ 42.987866][ T6785] WARNING: CPU: 1 PID: 6785 at arch/x86/kvm/x86.c:618 kvm_inject_emulated_page_fault+0x1b6/0x230 [ 42.998822][ T6785] Kernel panic - not syncing: panic_on_warn set ... [ 43.005399][ T6785] CPU: 1 PID: 6785 Comm: syz-executor816 Not tainted 5.7.0-syzkaller #0 [ 43.013741][ T6785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.024319][ T6785] Call Trace: [ 43.027616][ T6785] dump_stack+0x1e9/0x30e [ 43.032010][ T6785] panic+0x264/0x7a0 [ 43.035995][ T6785] ? __warn+0x102/0x210 [ 43.040181][ T6785] ? kvm_inject_emulated_page_fault+0x1b6/0x230 [ 43.046408][ T6785] __warn+0x209/0x210 [ 43.050416][ T6785] ? kvm_inject_emulated_page_fault+0x1b6/0x230 [ 43.056796][ T6785] report_bug+0x1ac/0x2d0 [ 43.061114][ T6785] do_error_trap+0xca/0x1c0 [ 43.065619][ T6785] do_invalid_op+0x32/0x40 [ 43.070043][ T6785] ? kvm_inject_emulated_page_fault+0x1b6/0x230 [ 43.076400][ T6785] invalid_op+0x23/0x30 [ 43.080548][ T6785] RIP: 0010:kvm_inject_emulated_page_fault+0x1b6/0x230 [ 43.087385][ T6785] Code: 04 07 84 c0 75 7c 8a 03 0f b6 d8 31 ff 89 de e8 90 a6 6a 00 89 d8 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fa a3 6a 00 <0f> 0b e9 94 fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 67 fe ff ff 4c [ 43.107457][ T6785] RSP: 0018:ffffc900015b7920 EFLAGS: 00010293 [ 43.113509][ T6785] RAX: ffffffff810a0d86 RBX: 0000000000000000 RCX: ffff8880a7912140 [ 43.121538][ T6785] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000e [ 43.129537][ T6785] RBP: dffffc0000000000 R08: ffffffff810a0c13 R09: ffffffff81bb83dd [ 43.137556][ T6785] R10: ffff8880a7912140 R11: 0000000000000003 R12: ffffc900015b7960 [ 43.145922][ T6785] R13: dffffc0000000000 R14: ffff8880a834c040 R15: ffff8880a834c040 [ 43.154069][ T6785] ? __check_object_size+0x7d/0x3f0 [ 43.159348][ T6785] ? kvm_inject_emulated_page_fault+0x43/0x230 [ 43.165782][ T6785] ? kvm_inject_emulated_page_fault+0x1b6/0x230 [ 43.172143][ T6785] ? nested_vmx_get_vmptr+0x186/0x1d0 [ 43.177504][ T6785] nested_vmx_get_vmptr+0x191/0x1d0 [ 43.182776][ T6785] handle_vmon+0x173/0x4a0 [ 43.188277][ T6785] ? vmx_handle_exit+0x36b/0xb80 [ 43.193359][ T6785] vcpu_enter_guest+0x6666/0x89a0 [ 43.198589][ T6785] ? __kasan_slab_free+0x144/0x170 [ 43.203705][ T6785] ? __kasan_slab_free+0x114/0x170 [ 43.210235][ T6785] ? __lock_acquire+0x116c/0x2c30 [ 43.215825][ T6785] ? __lock_acquire+0x116c/0x2c30 [ 43.221030][ T6785] ? lock_acquire+0x169/0x480 [ 43.226909][ T6785] ? rcu_lock_acquire+0x9/0x30 [ 43.234535][ T6785] vcpu_run+0x352/0xcd0 [ 43.239256][ T6785] kvm_arch_vcpu_ioctl_run+0x451/0x8f0 [ 43.245059][ T6785] kvm_vcpu_ioctl+0x64f/0xa60 [ 43.250113][ T6785] ? kvm_vm_ioctl_get_dirty_log+0x650/0x650 [ 43.256435][ T6785] __se_sys_ioctl+0xf9/0x160 [ 43.261948][ T6785] do_syscall_64+0xf3/0x1b0 [ 43.266880][ T6785] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.272919][ T6785] RIP: 0033:0x443569 [ 43.276808][ T6785] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 1b 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.296938][ T6785] RSP: 002b:00007fff155345e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.306036][ T6785] RAX: ffffffffffffffda RBX: 00007fff155345f0 RCX: 0000000000443569 [ 43.314684][ T6785] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 43.322846][ T6785] RBP: 0000000000000000 R08: 0000000020003800 R09: 0000000000400eb0 [ 43.330813][ T6785] R10: 00007fff15532a50 R11: 0000000000000246 R12: 0000000000404610 [ 43.338778][ T6785] R13: 00000000004046a0 R14: 0000000000000000 R15: 0000000000000000 [ 43.348950][ T6785] Kernel Offset: disabled [ 43.353622][ T6785] Rebooting in 86400 seconds..