Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.0' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 55.059454][ T6819] 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. [ 55.106483][ T6819] ------------[ cut here ]------------ [ 55.112199][ T6819] WARNING: CPU: 0 PID: 6819 at arch/x86/kvm/x86.c:618 kvm_inject_emulated_page_fault+0x210/0x290 [ 55.122772][ T6819] Kernel panic - not syncing: panic_on_warn set ... [ 55.129336][ T6819] CPU: 0 PID: 6819 Comm: syz-executor268 Not tainted 5.7.0-syzkaller #0 [ 55.137685][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.147770][ T6819] Call Trace: [ 55.151039][ T6819] dump_stack+0x188/0x20d [ 55.155421][ T6819] ? kvm_inject_emulated_page_fault+0x130/0x290 [ 55.161658][ T6819] panic+0x2e3/0x75c [ 55.165531][ T6819] ? add_taint.cold+0x16/0x16 [ 55.170184][ T6819] ? printk+0xba/0xed [ 55.174143][ T6819] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 55.179579][ T6819] ? __warn.cold+0x14/0x35 [ 55.184105][ T6819] ? __warn+0xd5/0x1c8 [ 55.188153][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 55.194370][ T6819] __warn.cold+0x2f/0x35 [ 55.198594][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 55.204813][ T6819] report_bug+0x27b/0x2f0 [ 55.209140][ T6819] do_error_trap+0x12b/0x220 [ 55.213708][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 55.219940][ T6819] do_invalid_op+0x32/0x40 [ 55.224331][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 55.230546][ T6819] invalid_op+0x23/0x30 [ 55.234680][ T6819] RIP: 0010:kvm_inject_emulated_page_fault+0x210/0x290 [ 55.241504][ T6819] Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 79 48 8b 53 08 4c 89 f6 48 89 ef e8 fa 04 0c 00 e9 10 ff ff ff e8 10 ac 68 00 <0f> 0b e9 3a fe ff ff 4c 89 e7 e8 21 74 a7 00 e9 5d fe ff ff 48 89 [ 55.261083][ T6819] RSP: 0018:ffffc90000f87968 EFLAGS: 00010293 [ 55.267125][ T6819] RAX: ffff888095202540 RBX: ffffc90000f879e0 RCX: ffffffff810ae417 [ 55.275072][ T6819] RDX: 0000000000000000 RSI: ffffffff810ae5e0 RDI: 0000000000000001 [ 55.283039][ T6819] RBP: ffff888088ce0040 R08: ffff888095202540 R09: fffff520001f0f58 [ 55.290985][ T6819] R10: ffffc90000f87abf R11: fffff520001f0f57 R12: 0000000000000000 [ 55.298951][ T6819] R13: 0000000000000001 R14: ffffc90000f87ab8 R15: ffff888088ce0380 [ 55.306909][ T6819] ? kvm_inject_emulated_page_fault+0x47/0x290 [ 55.313055][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 55.319292][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 55.325514][ T6819] nested_vmx_get_vmptr+0x1f9/0x2a0 [ 55.330697][ T6819] ? handle_invept+0x820/0x820 [ 55.335444][ T6819] ? vmx_segment_cache_test_set+0xc2/0x170 [ 55.341242][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 55.346600][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 55.351959][ T6819] handle_vmon+0x168/0x3a0 [ 55.356369][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 55.361719][ T6819] ? lock_release+0x800/0x800 [ 55.366376][ T6819] ? mark_held_locks+0x9f/0xe0 [ 55.371120][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 55.376465][ T6819] vmx_handle_exit+0x29c/0x1260 [ 55.381308][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 55.387268][ T6819] kvm_arch_vcpu_ioctl_run+0x2723/0x68a0 [ 55.392887][ T6819] ? kvm_arch_vcpu_runnable+0x6c0/0x6c0 [ 55.398411][ T6819] ? debug_smp_processor_id+0x2f/0x185 [ 55.403841][ T6819] ? lock_downgrade+0x840/0x840 [ 55.408669][ T6819] ? rcu_read_lock_held_common+0xa0/0xa0 [ 55.414279][ T6819] ? kvm_vcpu_ioctl+0x46a/0xe20 [ 55.419119][ T6819] kvm_vcpu_ioctl+0x46a/0xe20 [ 55.423773][ T6819] ? kvm_get_dirty_log_protect.isra.0+0x670/0x670 [ 55.430168][ T6819] ? ioctl_file_clone+0x180/0x180 [ 55.435169][ T6819] ? up_read+0x1ab/0x750 [ 55.439414][ T6819] ? copy_siginfo_to_user32+0xa0/0xa0 [ 55.444770][ T6819] ? kvm_get_dirty_log_protect.isra.0+0x670/0x670 [ 55.451164][ T6819] ksys_ioctl+0x11a/0x180 [ 55.455490][ T6819] __x64_sys_ioctl+0x6f/0xb0 [ 55.460094][ T6819] do_syscall_64+0xf6/0x7d0 [ 55.464577][ T6819] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 55.470445][ T6819] RIP: 0033:0x443569 [ 55.474317][ T6819] 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 [ 55.494037][ T6819] RSP: 002b:00007ffece6351a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.502422][ T6819] RAX: ffffffffffffffda RBX: 00007ffece6351b0 RCX: 0000000000443569 [ 55.510368][ T6819] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 55.518321][ T6819] RBP: 0000000000000000 R08: 0000000020003800 R09: 0000000000400eb0 [ 55.526329][ T6819] R10: 00007ffece633610 R11: 0000000000000246 R12: 0000000000404610 [ 55.534336][ T6819] R13: 00000000004046a0 R14: 0000000000000000 R15: 0000000000000000 [ 55.543774][ T6819] Kernel Offset: disabled [ 55.548144][ T6819] Rebooting in 86400 seconds..