[ 27.387903] audit: type=1800 audit(1538091112.463:27): pid=5239 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 27.408945] audit: type=1800 audit(1538091112.463:28): pid=5239 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 28.166712] audit: type=1800 audit(1538091113.313:29): pid=5239 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 28.186825] audit: type=1800 audit(1538091113.313:30): pid=5239 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.47' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.313583] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details. [ 39.334419] kasan: CONFIG_KASAN_INLINE enabled [ 39.339014] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.346358] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 39.352584] CPU: 0 PID: 5396 Comm: syz-executor203 Not tainted 4.19.0-rc5+ #34 [ 39.359920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.369263] RIP: 0010:__lock_acquire+0x237/0x4ec0 [ 39.374117] Code: 28 00 00 00 0f 85 aa 33 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 6d 35 00 00 49 81 7d 00 20 c6 8e 8a 0f 84 54 ff [ 39.393042] RSP: 0018:ffff8801d7856fb0 EFLAGS: 00010006 [ 39.398386] RAX: dffffc0000000000 RBX: 1ffff1003af0ae72 RCX: 0000000000000000 [ 39.405657] RDX: 0000000000000039 RSI: 0000000000000000 RDI: ffffffff89723ac0 [ 39.412913] RBP: ffff8801d7857338 R08: 0000000000000001 R09: 0000000000000001 [ 39.420172] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 39.427426] R13: 00000000000001c8 R14: ffff8801baef4440 R15: 0000000000000000 [ 39.434680] FS: 0000000000f7b880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 39.442885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.448766] CR2: 00007f9ab78b9000 CR3: 00000001d8952000 CR4: 00000000001426f0 [ 39.456020] Call Trace: [ 39.458601] ? mark_held_locks+0x130/0x130 [ 39.462822] ? kasan_check_read+0x11/0x20 [ 39.466955] ? __lock_acquire+0x2881/0x4ec0 [ 39.471266] ? lock_downgrade+0x900/0x900 [ 39.475398] ? mark_held_locks+0x130/0x130 [ 39.479634] ? mark_held_locks+0x130/0x130 [ 39.483856] ? add_timer+0x644/0x1490 [ 39.487666] ? graph_lock+0x170/0x170 [ 39.491467] ? mod_timer+0x1440/0x1440 [ 39.495338] ? check_preemption_disabled+0x48/0x200 [ 39.500352] ? kasan_check_read+0x11/0x20 [ 39.504487] ? do_raw_spin_unlock+0xa7/0x2f0 [ 39.508896] ? find_held_lock+0x36/0x1c0 [ 39.512954] ? vcpu_enter_guest+0x30a7/0x62b0 [ 39.517430] ? print_usage_bug+0xc0/0xc0 [ 39.521471] ? lock_downgrade+0x900/0x900 [ 39.525606] lock_acquire+0x1ed/0x520 [ 39.529395] ? kvm_ioapic_scan_entry+0x7f/0x3c0 [ 39.534048] ? lock_release+0x970/0x970 [ 39.538004] ? vmx_flush_tlb_gva+0x380/0x380 [ 39.542409] ? mark_held_locks+0xc7/0x130 [ 39.546559] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 39.552077] ? kvm_hv_setup_tsc_page+0xc9/0x6f0 [ 39.556751] _raw_spin_lock+0x2d/0x40 [ 39.560534] ? kvm_ioapic_scan_entry+0x7f/0x3c0 [ 39.565187] kvm_ioapic_scan_entry+0x7f/0x3c0 [ 39.569671] vcpu_enter_guest+0x492f/0x62b0 [ 39.573982] ? emulator_read_emulated+0x50/0x50 [ 39.578634] ? hardware_disable+0x530/0x530 [ 39.582961] ? vmx_vcpu_load+0xb06/0x1030 [ 39.587097] ? find_held_lock+0x36/0x1c0 [ 39.591169] ? vmx_write_tsc_offset+0x680/0x680 [ 39.595843] ? graph_lock+0x170/0x170 [ 39.599633] ? kvm_vcpu_ioctl+0x28c/0x1150 [ 39.603878] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.609409] ? check_preemption_disabled+0x48/0x200 [ 39.614411] ? check_preemption_disabled+0x48/0x200 [ 39.619411] ? __lock_is_held+0xb5/0x140 [ 39.623457] ? lock_acquire+0x1ed/0x520 [ 39.627440] ? kvm_arch_vcpu_ioctl_run+0x234/0x16e0 [ 39.632457] ? lock_release+0x970/0x970 [ 39.636416] ? kvm_gen_update_masterclock+0x350/0x350 [ 39.641590] ? kvm_arch_dev_ioctl+0x630/0x630 [ 39.646075] ? preempt_notifier_dec+0x20/0x20 [ 39.650557] kvm_arch_vcpu_ioctl_run+0x375/0x16e0 [ 39.655382] ? kvm_arch_vcpu_ioctl_run+0x375/0x16e0 [ 39.660387] kvm_vcpu_ioctl+0x72b/0x1150 [ 39.664438] ? kvm_vcpu_block+0x1030/0x1030 [ 39.668745] ? is_bpf_text_address+0xd3/0x170 [ 39.673225] ? kernel_text_address+0x79/0xf0 [ 39.677615] ? __kernel_text_address+0xd/0x40 [ 39.682111] ? unwind_get_return_address+0x61/0xa0 [ 39.687034] ? __save_stack_trace+0x8d/0xf0 [ 39.691343] ? save_stack+0xa9/0xd0 [ 39.694956] ? save_stack+0x43/0xd0 [ 39.698567] ? __kasan_slab_free+0x102/0x150 [ 39.702976] ? kasan_slab_free+0xe/0x10 [ 39.707057] ? putname+0xf2/0x130 [ 39.710495] ? do_sys_open+0x54d/0x700 [ 39.714368] ? __x64_sys_openat+0x9d/0x100 [ 39.718588] ? do_syscall_64+0x1b9/0x820 [ 39.722635] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.727986] ? trace_hardirqs_off+0xb8/0x310 [ 39.732377] ? kasan_check_read+0x11/0x20 [ 39.736512] ? do_raw_spin_unlock+0xa7/0x2f0 [ 39.740919] ? trace_hardirqs_on+0x310/0x310 [ 39.745314] ? __bpf_trace_initcall_finish+0x2a/0x30 [ 39.750427] ? trace_hardirqs_off+0xb8/0x310 [ 39.754838] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.760400] ? check_preemption_disabled+0x48/0x200 [ 39.765399] ? check_preemption_disabled+0x48/0x200 [ 39.770415] ? kvm_vcpu_block+0x1030/0x1030 [ 39.774720] do_vfs_ioctl+0x1de/0x1720 [ 39.778635] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.783900] ? ioctl_preallocate+0x300/0x300 [ 39.788302] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.793823] ? __fget_light+0x2e9/0x430 [ 39.797780] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.803305] ? smack_file_ioctl+0x210/0x3c0 [ 39.807634] ? fget_raw+0x20/0x20 [ 39.811093] ? smack_file_lock+0x2e0/0x2e0 [ 39.815313] ? do_syscall_64+0x9a/0x820 [ 39.819272] ? do_syscall_64+0x9a/0x820 [ 39.823230] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.828754] ? security_file_ioctl+0x94/0xc0 [ 39.833158] ksys_ioctl+0xa9/0xd0 [ 39.836620] __x64_sys_ioctl+0x73/0xb0 [ 39.840488] do_syscall_64+0x1b9/0x820 [ 39.844363] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.849711] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.854641] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.859472] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.864474] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.869472] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.874475] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.879303] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.884476] RIP: 0033:0x440099 [ 39.887675] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 39.906562] RSP: 002b:00007fff6531bf48 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 39.914253] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440099 [ 39.921504] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 39.928753] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 39.936021] R10: 00000000004002c8 R11: 0000000000000207 R12: 0000000000401920 [ 39.943289] R13: 00000000004019b0 R14: 0000000000000000 R15: 0000000000000000 [ 39.950559] Modules linked in: [ 39.953764] ---[ end trace f895e7ace384fdf1 ]--- [ 39.958508] RIP: 0010:__lock_acquire+0x237/0x4ec0 [ 39.963338] Code: 28 00 00 00 0f 85 aa 33 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 6d 35 00 00 49 81 7d 00 20 c6 8e 8a 0f 84 54 ff [ 39.982234] RSP: 0018:ffff8801d7856fb0 EFLAGS: 00010006 [ 39.987579] RAX: dffffc0000000000 RBX: 1ffff1003af0ae72 RCX: 0000000000000000 [ 39.994846] RDX: 0000000000000039 RSI: 0000000000000000 RDI: ffffffff89723ac0 [ 40.002100] RBP: ffff8801d7857338 R08: 0000000000000001 R09: 0000000000000001 [ 40.009352] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 40.016625] R13: 00000000000001c8 R14: ffff8801baef4440 R15: 0000000000000000 [ 40.023889] FS: 0000000000f7b880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 40.032111] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.037976] CR2: 00007f9ab78b9000 CR3: 00000001d8952000 CR4: 00000000001426f0 [ 40.045235] Kernel panic - not syncing: Fatal exception [ 40.051600] Kernel Offset: disabled [ 40.055223] Rebooting in 86400 seconds..