[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.127' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 34.352984] 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. [ 34.409841] hrtimer: interrupt took 47756 ns executing program [ 34.529847] kvm: emulating exchange as write executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 36.015550] ------------[ cut here ]------------ [ 36.020722] WARNING: CPU: 1 PID: 8348 at arch/x86/kvm/x86.c:8115 kvm_arch_vcpu_ioctl_run.cold+0x29/0x48 [ 36.030262] Kernel panic - not syncing: panic_on_warn set ... [ 36.030262] [ 36.037635] CPU: 1 PID: 8348 Comm: syz-executor516 Not tainted 4.19.211-syzkaller #0 [ 36.045517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.054873] Call Trace: [ 36.057472] dump_stack+0x1fc/0x2ef [ 36.061118] panic+0x26a/0x50e [ 36.064324] ? __warn_printk+0xf3/0xf3 [ 36.068219] ? kvm_arch_vcpu_ioctl_run.cold+0x29/0x48 [ 36.073438] ? __probe_kernel_read+0x130/0x1b0 [ 36.078030] ? __warn.cold+0x5/0x5a [ 36.081661] ? __warn+0xe4/0x200 [ 36.085034] ? kvm_arch_vcpu_ioctl_run.cold+0x29/0x48 [ 36.090233] __warn.cold+0x20/0x5a [ 36.093788] ? kvm_arch_vcpu_ioctl_run.cold+0x29/0x48 [ 36.098991] report_bug+0x262/0x2b0 [ 36.102634] do_error_trap+0x1d7/0x310 [ 36.106527] ? math_error+0x310/0x310 [ 36.110334] ? __irq_work_queue_local+0x101/0x160 [ 36.115184] ? irq_work_queue+0x29/0x80 [ 36.119170] ? error_entry+0x72/0xd0 [ 36.122907] ? trace_hardirqs_off_caller+0x6e/0x210 [ 36.127934] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.132790] invalid_op+0x14/0x20 [ 36.136258] RIP: 0010:kvm_arch_vcpu_ioctl_run.cold+0x29/0x48 [ 36.142058] Code: f9 e8 0b a8 70 f9 48 c7 c7 a0 23 62 88 e8 6a d9 01 00 0f 0b e9 46 aa 1b f9 e8 f3 a7 70 f9 48 c7 c7 a0 23 62 88 e8 52 d9 01 00 <0f> 0b e9 95 53 1b f9 e8 db a7 70 f9 48 c7 c7 a0 23 62 88 e8 3a d9 [ 36.161056] RSP: 0018:ffff888091287a10 EFLAGS: 00010286 [ 36.166414] RAX: 0000000000000024 RBX: 0000000000000001 RCX: 0000000000000000 [ 36.173681] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012250f34 [ 36.180944] RBP: ffff888091287bb0 R08: 0000000000000024 R09: 0000000000000000 [ 36.188204] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880af9b1000 [ 36.195464] R13: ffff88808f700940 R14: 0000000000000000 R15: 0000000000000000 [ 36.202743] ? vprintk_func+0x81/0x180 [ 36.206631] ? do_raw_spin_unlock+0x171/0x230 [ 36.211121] ? _raw_spin_unlock+0x29/0x40 [ 36.215267] ? __mutex_lock+0x368/0x1190 [ 36.219329] ? kvm_arch_vcpu_runnable+0x690/0x690 [ 36.224164] ? synchronize_rcu_expedited+0xa0/0xa0 [ 36.229088] ? lock_downgrade+0x720/0x720 [ 36.233230] ? check_preemption_disabled+0x41/0x280 [ 36.238243] ? check_preemption_disabled+0x41/0x280 [ 36.243256] ? kvm_vcpu_ioctl+0x493/0xe10 [ 36.247394] kvm_vcpu_ioctl+0x493/0xe10 [ 36.251396] ? kvm_vm_ioctl_check_extension_generic+0xb0/0xb0 [ 36.257277] ? mark_held_locks+0xf0/0xf0 [ 36.261335] ? __lock_acquire+0x6de/0x3ff0 [ 36.265571] ? __lock_acquire+0x6de/0x3ff0 [ 36.269802] ? kvm_vm_ioctl_check_extension_generic+0xb0/0xb0 [ 36.275685] do_vfs_ioctl+0xcdb/0x12e0 [ 36.279568] ? lock_downgrade+0x720/0x720 [ 36.283713] ? check_preemption_disabled+0x41/0x280 [ 36.288722] ? ioctl_preallocate+0x200/0x200 [ 36.293126] ? __fget+0x356/0x510 [ 36.296580] ? do_dup2+0x450/0x450 [ 36.300118] ? lock_acquire+0x170/0x3c0 [ 36.304085] ? finish_task_switch+0x118/0x760 [ 36.308580] ksys_ioctl+0x9b/0xc0 [ 36.312028] __x64_sys_ioctl+0x6f/0xb0 [ 36.315909] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.320482] do_syscall_64+0xf9/0x620 [ 36.324285] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.329467] RIP: 0033:0x7fe35538d919 [ 36.333174] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 36.352241] RSP: 002b:00007fe35531c2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.361159] RAX: ffffffffffffffda RBX: 00007fe355416430 RCX: 00007fe35538d919 [ 36.368427] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 36.375690] RBP: 00007fe35541643c R08: 00007fe35531c700 R09: 0000000000000000 [ 36.382952] R10: 00007fe35531c700 R11: 0000000000000246 R12: 00007fe3553e30b8 [ 36.390317] R13: 6d766b2f7665642f R14: 65732f636f72702f R15: 00007fe355416438 [ 36.397958] Kernel Offset: disabled [ 36.401625] Rebooting in 86400 seconds..