[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.166' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 60.378840][ T6893] 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. [ 60.427439][ T6893] ------------[ cut here ]------------ [ 60.433123][ T6893] WARNING: CPU: 0 PID: 6893 at arch/x86/kvm/vmx/vmx.c:4809 handle_exception_nmi+0x10e1/0x12d0 [ 60.444816][ T6893] Modules linked in: [ 60.450353][ T6893] CPU: 0 PID: 6893 Comm: syz-executor847 Not tainted 5.9.0-rc7-next-20201001-syzkaller #0 [ 60.460997][ T6893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.471758][ T6893] RIP: 0010:handle_exception_nmi+0x10e1/0x12d0 [ 60.478555][ T6893] Code: 0f 84 16 f3 ff ff e8 1e 4c 59 00 48 89 ef c7 85 ac 0e 00 00 00 00 00 00 e8 6c 9c f0 ff 41 89 c4 e9 fd f2 ff ff e8 ff 4b 59 00 <0f> 0b e9 85 f8 ff ff e8 f3 4b 59 00 be f5 ff ff ff bf 01 00 00 00 [ 60.498956][ T6893] RSP: 0018:ffffc90005607b58 EFLAGS: 00010293 [ 60.505039][ T6893] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff811bf385 [ 60.513992][ T6893] RDX: ffff88808b226080 RSI: ffffffff811bfb01 RDI: 0000000000000001 [ 60.529050][ T6893] RBP: ffff8880a8298040 R08: 0000000000000001 R09: ffff8880a8298387 [ 60.543125][ T6893] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 60.551778][ T6893] R13: fffffffffffffff8 R14: ffff8880a8298380 R15: 0000000000000000 [ 60.560453][ T6893] FS: 00000000019e1880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 60.570033][ T6893] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.577193][ T6893] CR2: 00007fc45708f000 CR3: 000000009e938000 CR4: 00000000001526f0 [ 60.585202][ T6893] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.594252][ T6893] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.602860][ T6893] Call Trace: [ 60.606819][ T6893] ? vmx_skip_emulated_instruction+0x250/0x250 [ 60.613017][ T6893] vmx_handle_exit+0x2a6/0x1510 [ 60.618842][ T6893] vcpu_enter_guest+0x18f4/0x3b20 [ 60.624146][ T6893] ? kvm_vcpu_reload_apic_access_page+0x80/0x80 [ 60.632169][ T6893] ? lock_release+0x890/0x890 [ 60.637388][ T6893] ? mark_held_locks+0x9f/0xe0 [ 60.642168][ T6893] ? kvm_load_guest_fpu+0xa1/0x390 [ 60.648201][ T6893] ? lock_is_held_type+0xbb/0xf0 [ 60.653171][ T6893] ? kvm_arch_vcpu_ioctl_run+0x440/0x1780 [ 60.659899][ T6893] kvm_arch_vcpu_ioctl_run+0x440/0x1780 [ 60.665470][ T6893] kvm_vcpu_ioctl+0x467/0xd90 [ 60.672014][ T6893] ? kvm_gfn_to_hva_cache_init+0x1a0/0x1a0 [ 60.678401][ T6893] ? generic_block_fiemap+0x60/0x60 [ 60.683616][ T6893] ? __up_read+0x1a1/0x7b0 [ 60.689059][ T6893] ? _down_write_nest_lock+0x150/0x150 [ 60.694532][ T6893] ? bpf_lsm_file_ioctl+0x5/0x10 [ 60.700478][ T6893] ? kvm_gfn_to_hva_cache_init+0x1a0/0x1a0 [ 60.706942][ T6893] __x64_sys_ioctl+0x193/0x200 [ 60.711710][ T6893] do_syscall_64+0x2d/0x70 [ 60.717104][ T6893] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.728858][ T6893] RIP: 0033:0x443bb9 [ 60.732787][ T6893] Code: e8 dc a3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 db 00 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.753682][ T6893] RSP: 002b:00007fff938315a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 60.762780][ T6893] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443bb9 [ 60.771519][ T6893] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 60.780165][ T6893] RBP: 00000000006ce018 R08: 0000000000000000 R09: 00000000004002c8 [ 60.788741][ T6893] R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000404120 [ 60.797369][ T6893] R13: 00000000004041b0 R14: 0000000000000000 R15: 0000000000000000 [ 60.805369][ T6893] Kernel panic - not syncing: panic_on_warn set ... [ 60.811946][ T6893] CPU: 0 PID: 6893 Comm: syz-executor847 Not tainted 5.9.0-rc7-next-20201001-syzkaller #0 [ 60.824449][ T6893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.834828][ T6893] Call Trace: [ 60.838123][ T6893] dump_stack+0x198/0x1fb [ 60.842466][ T6893] panic+0x382/0x7fb [ 60.846374][ T6893] ? __warn_printk+0xf3/0xf3 [ 60.850979][ T6893] ? __warn.cold+0x1d/0xbb [ 60.855423][ T6893] ? __warn.cold+0x14/0xbb [ 60.859848][ T6893] ? handle_exception_nmi+0x10e1/0x12d0 [ 60.865410][ T6893] __warn.cold+0x38/0xbb [ 60.870373][ T6893] ? handle_exception_nmi+0x10e1/0x12d0 [ 60.875913][ T6893] report_bug+0x1bd/0x210 [ 60.880235][ T6893] handle_bug+0x38/0x90 [ 60.884381][ T6893] exc_invalid_op+0x14/0x40 [ 60.888898][ T6893] asm_exc_invalid_op+0x12/0x20 [ 60.893770][ T6893] RIP: 0010:handle_exception_nmi+0x10e1/0x12d0 [ 60.899920][ T6893] Code: 0f 84 16 f3 ff ff e8 1e 4c 59 00 48 89 ef c7 85 ac 0e 00 00 00 00 00 00 e8 6c 9c f0 ff 41 89 c4 e9 fd f2 ff ff e8 ff 4b 59 00 <0f> 0b e9 85 f8 ff ff e8 f3 4b 59 00 be f5 ff ff ff bf 01 00 00 00 [ 60.923539][ T6893] RSP: 0018:ffffc90005607b58 EFLAGS: 00010293 [ 60.929612][ T6893] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff811bf385 [ 60.937851][ T6893] RDX: ffff88808b226080 RSI: ffffffff811bfb01 RDI: 0000000000000001 [ 60.945839][ T6893] RBP: ffff8880a8298040 R08: 0000000000000001 R09: ffff8880a8298387 [ 60.953802][ T6893] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 60.961781][ T6893] R13: fffffffffffffff8 R14: ffff8880a8298380 R15: 0000000000000000 [ 60.969793][ T6893] ? handle_exception_nmi+0x965/0x12d0 [ 60.975303][ T6893] ? handle_exception_nmi+0x10e1/0x12d0 [ 60.980861][ T6893] ? handle_exception_nmi+0x10e1/0x12d0 [ 60.986411][ T6893] ? vmx_skip_emulated_instruction+0x250/0x250 [ 60.992584][ T6893] vmx_handle_exit+0x2a6/0x1510 [ 60.997478][ T6893] vcpu_enter_guest+0x18f4/0x3b20 [ 61.002506][ T6893] ? kvm_vcpu_reload_apic_access_page+0x80/0x80 [ 61.008749][ T6893] ? lock_release+0x890/0x890 [ 61.013469][ T6893] ? mark_held_locks+0x9f/0xe0 [ 61.018219][ T6893] ? kvm_load_guest_fpu+0xa1/0x390 [ 61.026994][ T6893] ? lock_is_held_type+0xbb/0xf0 [ 61.032115][ T6893] ? kvm_arch_vcpu_ioctl_run+0x440/0x1780 [ 61.037931][ T6893] kvm_arch_vcpu_ioctl_run+0x440/0x1780 [ 61.043489][ T6893] kvm_vcpu_ioctl+0x467/0xd90 [ 61.048169][ T6893] ? kvm_gfn_to_hva_cache_init+0x1a0/0x1a0 [ 61.053964][ T6893] ? generic_block_fiemap+0x60/0x60 [ 61.059163][ T6893] ? __up_read+0x1a1/0x7b0 [ 61.063585][ T6893] ? _down_write_nest_lock+0x150/0x150 [ 61.069066][ T6893] ? bpf_lsm_file_ioctl+0x5/0x10 [ 61.074007][ T6893] ? kvm_gfn_to_hva_cache_init+0x1a0/0x1a0 [ 61.079813][ T6893] __x64_sys_ioctl+0x193/0x200 [ 61.084565][ T6893] do_syscall_64+0x2d/0x70 [ 61.088966][ T6893] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.094845][ T6893] RIP: 0033:0x443bb9 [ 61.098724][ T6893] Code: e8 dc a3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 db 00 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.118431][ T6893] RSP: 002b:00007fff938315a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.126839][ T6893] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443bb9 [ 61.134808][ T6893] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 61.142779][ T6893] RBP: 00000000006ce018 R08: 0000000000000000 R09: 00000000004002c8 [ 61.150736][ T6893] R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000404120 [ 61.159682][ T6893] R13: 00000000004041b0 R14: 0000000000000000 R15: 0000000000000000 [ 61.168868][ T6893] Kernel Offset: disabled [ 61.173268][ T6893] Rebooting in 86400 seconds..