[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 22.541787] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 28.407648] random: sshd: uninitialized urandom read (32 bytes read) [ 28.682954] random: sshd: uninitialized urandom read (32 bytes read) [ 29.235269] random: sshd: uninitialized urandom read (32 bytes read) [ 47.190723] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.15' (ECDSA) to the list of known hosts. [ 52.917843] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 53.020551] 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. [ 53.044195] FAT-fs (loop0): bogus number of reserved sectors [ 53.050175] FAT-fs (loop0): Can't find a valid FAT filesystem [ 53.060765] kasan: CONFIG_KASAN_INLINE enabled [ 53.067781] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 53.075139] general protection fault: 0000 [#1] SMP KASAN [ 53.080677] CPU: 1 PID: 4464 Comm: syz-executor200 Not tainted 4.18.0-next-20180824+ #47 [ 53.088895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.098257] RIP: 0010:__schedule+0xf48/0x1df0 [ 53.102757] Code: 4c 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 94 09 00 00 4d 8b 6d 00 4d 85 ed 0f 84 84 f7 ff ff 49 8d 7d 10 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 a6 e8 7c 87 06 fb eb 9f 4c 89 e6 48 89 df e8 6f [ 53.121657] RSP: 0018:ffff8801d952ea80 EFLAGS: 00010806 [ 53.127019] RAX: 1bd5a00000000022 RBX: ffff8801d982e380 RCX: 1ffff1003b29f88f [ 53.134288] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 53.141553] RBP: ffff8801d952ec50 R08: ffff8801d982e380 R09: fffff520003c4a47 [ 53.148820] R10: fffff520003c4a47 R11: ffffc90001e2523b R12: ffff8801ca5e4400 [ 53.156086] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc40 [ 53.163360] FS: 0000000000f56880(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 53.171579] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.177464] CR2: 000000000044306e CR3: 00000001ca458000 CR4: 00000000001426e0 [ 53.184734] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.191997] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.199258] Call Trace: [ 53.201852] ? mark_held_locks+0x160/0x160 [ 53.206086] ? print_usage_bug+0xc0/0xc0 [ 53.210153] ? __sched_text_start+0x8/0x8 [ 53.214306] ? generic_exec_single+0x1ea/0x5e0 [ 53.218888] ? __lock_is_held+0xb5/0x140 [ 53.222954] ? check_same_owner+0x340/0x340 [ 53.227284] ? smp_call_function_single+0x2d6/0x5c0 [ 53.232304] ? add_nops+0x90/0x90 [ 53.235759] ? arch_jump_label_transform+0x1b/0x40 [ 53.240690] preempt_schedule_common+0x22/0x60 [ 53.245277] _cond_resched+0x1d/0x30 [ 53.248989] __mutex_lock+0x13d/0x1700 [ 53.252877] ? fill_pte+0xd6/0x420 [ 53.256416] ? arch_jump_label_transform+0x1b/0x40 [ 53.261343] ? mutex_trylock+0x2b0/0x2b0 [ 53.265403] ? find_held_lock+0x36/0x1c0 [ 53.269470] ? lock_downgrade+0x8f0/0x8f0 [ 53.273622] ? trace_hardirqs_on+0xbd/0x2c0 [ 53.277944] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 53.283042] ? text_poke_bp+0x10c/0x16a [ 53.287015] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 53.292125] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 53.296886] ? kvm_arch_vcpu_ioctl+0x1e74/0x3ac0 [ 53.301650] ? kasan_check_write+0x14/0x20 [ 53.305884] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 53.310811] ? wait_for_completion+0x8d0/0x8d0 [ 53.315399] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 53.320157] ? __jump_label_transform.isra.0+0x478/0x8f0 [ 53.325615] ? modules_open+0xa0/0xa0 [ 53.329424] ? kvm_vm_release+0x42/0x50 [ 53.333396] ? get_trap_addr+0x1d0/0x1d0 [ 53.337455] ? do_group_exit+0x177/0x440 [ 53.341523] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.347064] ? jump_label_type+0x132/0x1d0 [ 53.351298] ? static_key_count+0x130/0x130 [ 53.355631] mutex_lock_nested+0x16/0x20 [ 53.359693] ? mutex_lock_nested+0x16/0x20 [ 53.363934] arch_jump_label_transform+0x1b/0x40 [ 53.368690] __jump_label_update+0x16e/0x1a0 [ 53.373103] jump_label_update+0x151/0x2e0 [ 53.377362] __static_key_slow_dec_cpuslocked+0xb8/0x210 [ 53.382808] ? static_key_disable+0x30/0x30 [ 53.387218] ? rcu_read_lock_sched_held+0x108/0x120 [ 53.392233] static_key_slow_dec+0x63/0xa0 [ 53.396465] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 53.400960] kvm_vcpu_uninit+0x44/0x90 [ 53.404849] vmx_free_vcpu+0x23a/0x300 [ 53.408735] kvm_arch_destroy_vm+0x365/0x7c0 [ 53.413146] ? kasan_check_write+0x3/0x20 [ 53.417297] ? kvm_arch_sync_events+0x30/0x30 [ 53.421795] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.427338] ? mmu_notifier_unregister+0x474/0x600 [ 53.432263] ? trace_hardirqs_on+0x2c0/0x2c0 [ 53.436675] ? kfree+0x111/0x210 [ 53.440042] ? __mmu_notifier_register+0x30/0x30 [ 53.444797] ? __free_pages+0x10a/0x190 [ 53.448770] ? free_unref_page+0x930/0x930 [ 53.453014] kvm_put_kvm+0x73f/0x1060 [ 53.456819] ? kvm_write_guest_cached+0x40/0x40 [ 53.461493] ? _raw_spin_unlock_irq+0x27/0x70 [ 53.465988] ? _raw_spin_unlock_irq+0x27/0x70 [ 53.470487] ? lockdep_hardirqs_on+0x421/0x5c0 [ 53.475073] ? kasan_check_write+0x14/0x20 [ 53.479311] ? do_raw_spin_lock+0xc1/0x200 [ 53.483550] ? kvm_irqfd_release+0xdd/0x120 [ 53.487871] ? kvm_irqfd_release+0xdd/0x120 [ 53.492202] ? kvm_put_kvm+0x1060/0x1060 [ 53.496263] kvm_vm_release+0x42/0x50 [ 53.500096] __fput+0x376/0x8a0 [ 53.503376] ? __alloc_file+0x400/0x400 [ 53.507349] ? check_same_owner+0x340/0x340 [ 53.511668] ? kasan_check_write+0x14/0x20 [ 53.515900] ? do_raw_spin_lock+0xc1/0x200 [ 53.520135] ____fput+0x15/0x20 [ 53.523416] task_work_run+0x1e8/0x2a0 [ 53.527303] ? task_work_cancel+0x240/0x240 [ 53.531636] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.537172] ? switch_task_namespaces+0xa2/0xd0 [ 53.541845] do_exit+0x1ae4/0x26e0 [ 53.545390] ? mm_update_next_owner+0x9a0/0x9a0 [ 53.550054] ? __lock_acquire+0x7fc/0x5020 [ 53.554337] ? mark_held_locks+0x160/0x160 [ 53.558572] ? kasan_check_write+0x14/0x20 [ 53.562808] ? do_raw_spin_lock+0xc1/0x200 [ 53.567045] ? __call_rcu.constprop.68+0x3bc/0xb30 [ 53.571972] ? __call_rcu.constprop.68+0x3bc/0xb30 [ 53.576901] ? lockdep_hardirqs_on+0x421/0x5c0 [ 53.581484] ? trace_hardirqs_on+0xbd/0x2c0 [ 53.585807] ? rcu_is_watching+0x8c/0x150 [ 53.589951] ? call_rcu_sched+0x12/0x20 [ 53.593928] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.599465] ? locks_remove_posix+0x45e/0x7c0 [ 53.603965] ? do_lock_file_wait.part.30+0x260/0x260 [ 53.609073] ? graph_lock+0x170/0x170 [ 53.612876] ? graph_lock+0x170/0x170 [ 53.616679] ? mnt_get_count+0x150/0x150 [ 53.620741] ? blkcg_maybe_throttle_current+0xa56/0x10c0 [ 53.626205] ? _raw_spin_unlock+0x22/0x30 [ 53.630353] ? find_held_lock+0x36/0x1c0 [ 53.634421] ? lock_downgrade+0x8f0/0x8f0 [ 53.638571] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 53.644113] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.649649] ? fput+0x130/0x1a0 [ 53.652931] ? filp_close+0x1cd/0x250 [ 53.656729] ? file_path+0x30/0x30 [ 53.660292] ? __close_fd+0x24c/0x3a0 [ 53.664091] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 53.669198] do_group_exit+0x177/0x440 [ 53.673083] ? trace_hardirqs_on+0xbd/0x2c0 [ 53.677403] ? __ia32_sys_exit+0x50/0x50 [ 53.681461] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 53.686564] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.692102] __x64_sys_exit_group+0x3e/0x50 [ 53.696451] do_syscall_64+0x1b9/0x820 [ 53.700343] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 53.705707] ? syscall_return_slowpath+0x5e0/0x5e0 [ 53.710644] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.715487] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 53.720505] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.725704] ? prepare_exit_to_usermode+0x291/0x3b0 [ 53.730715] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.735552] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.740880] RIP: 0033:0x443098 [ 53.744067] Code: Bad RIP value. [ 53.747430] RSP: 002b:00007ffd42865658 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 53.755133] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443098 [ 53.762397] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 53.769661] RBP: 00000000004c2f08 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 53.776924] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 53.784196] R13: 00000000006d5180 R14: 0000000000000000 R15: 0000000000000000 [ 53.791462] Modules linked in: [ 53.794653] Dumping ftrace buffer: [ 53.798179] (ftrace buffer empty) [ 53.801882] [ 53.801885] ====================================================== [ 53.801888] WARNING: possible circular locking dependency detected [ 53.801891] 4.18.0-next-20180824+ #47 Not tainted [ 53.801894] ------------------------------------------------------ [ 53.801897] syz-executor200/4464 is trying to acquire lock: [ 53.801900] 00000000987a196b ((console_sem).lock){-...}, at: down_trylock+0x13/0x70 [ 53.801908] [ 53.801910] but task is already holding lock: [ 53.801912] 0000000094029b88 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 53.801925] [ 53.801928] which lock already depends on the new lock. [ 53.801929] [ 53.801930] [ 53.801933] the existing dependency chain (in reverse order) is: [ 53.801934] [ 53.801936] -> #2 (&rq->lock){-.-.}: [ 53.801943] _raw_spin_lock+0x2a/0x40 [ 53.801946] task_fork_fair+0x93/0x680 [ 53.801948] sched_fork+0x44b/0xbd0 [ 53.801950] copy_process+0x235e/0x7af0 [ 53.801953] _do_fork+0x1ca/0x1170 [ 53.801955] kernel_thread+0x34/0x40 [ 53.801957] rest_init+0x22/0xe4 [ 53.801959] start_kernel+0x913/0x94e [ 53.801962] x86_64_start_reservations+0x29/0x2b [ 53.801964] x86_64_start_kernel+0x76/0x79 [ 53.801967] secondary_startup_64+0xa4/0xb0 [ 53.801968] [ 53.801969] -> #1 (&p->pi_lock){-.-.}: [ 53.801977] _raw_spin_lock_irqsave+0x96/0xc0 [ 53.801979] try_to_wake_up+0xd2/0x1250 [ 53.801982] wake_up_process+0x10/0x20 [ 53.801984] __up.isra.1+0x1c0/0x2a0 [ 53.801986] up+0x13c/0x1c0 [ 53.801988] __up_console_sem+0xbe/0x1b0 [ 53.801990] console_unlock+0x506/0x10d0 [ 53.801993] do_con_write+0x1375/0x23d0 [ 53.801995] con_write+0x25/0xc0 [ 53.801997] n_tty_write+0x6c1/0x11a0 [ 53.801999] tty_write+0x3f1/0x880 [ 53.802001] __vfs_write+0x117/0x9d0 [ 53.802003] vfs_write+0x1fc/0x560 [ 53.802005] ksys_write+0x101/0x260 [ 53.802007] __x64_sys_write+0x73/0xb0 [ 53.802010] do_syscall_64+0x1b9/0x820 [ 53.802012] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.802013] [ 53.802015] -> #0 ((console_sem).lock){-...}: [ 53.802022] lock_acquire+0x1e4/0x4f0 [ 53.802025] _raw_spin_lock_irqsave+0x96/0xc0 [ 53.802027] down_trylock+0x13/0x70 [ 53.802030] __down_trylock_console_sem+0xae/0x200 [ 53.802032] console_trylock+0x15/0xa0 [ 53.802034] vprintk_emit+0x31f/0x910 [ 53.802036] vprintk_default+0x28/0x30 [ 53.802038] vprintk_func+0x7a/0x117 [ 53.802040] printk+0xa7/0xcf [ 53.802043] kasan_die_handler.cold.22+0x11/0x30 [ 53.802045] notifier_call_chain+0x180/0x390 [ 53.802048] atomic_notifier_call_chain+0x98/0x190 [ 53.802050] notify_die+0x1be/0x2e0 [ 53.802052] do_general_protection+0x248/0x2f0 [ 53.802055] general_protection+0x1e/0x30 [ 53.802057] __schedule+0xf48/0x1df0 [ 53.802059] preempt_schedule_common+0x22/0x60 [ 53.802061] _cond_resched+0x1d/0x30 [ 53.802063] __mutex_lock+0x13d/0x1700 [ 53.802066] mutex_lock_nested+0x16/0x20 [ 53.802068] arch_jump_label_transform+0x1b/0x40 [ 53.802071] __jump_label_update+0x16e/0x1a0 [ 53.802073] jump_label_update+0x151/0x2e0 [ 53.802076] __static_key_slow_dec_cpuslocked+0xb8/0x210 [ 53.802078] static_key_slow_dec+0x63/0xa0 [ 53.802081] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 53.802083] kvm_vcpu_uninit+0x44/0x90 [ 53.802085] vmx_free_vcpu+0x23a/0x300 [ 53.802088] kvm_arch_destroy_vm+0x365/0x7c0 [ 53.802090] kvm_put_kvm+0x73f/0x1060 [ 53.802092] kvm_vm_release+0x42/0x50 [ 53.802094] __fput+0x376/0x8a0 [ 53.802096] ____fput+0x15/0x20 [ 53.802098] task_work_run+0x1e8/0x2a0 [ 53.802100] do_exit+0x1ae4/0x26e0 [ 53.802102] do_group_exit+0x177/0x440 [ 53.802105] __x64_sys_exit_group+0x3e/0x50 [ 53.802107] do_syscall_64+0x1b9/0x820 [ 53.802110] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.802111] [ 53.802113] other info that might help us debug this: [ 53.802115] [ 53.802116] Chain exists of: [ 53.802118] (console_sem).lock --> &p->pi_lock --> &rq->lock [ 53.802127] [ 53.802130] Possible unsafe locking scenario: [ 53.802131] [ 53.802133] CPU0 CPU1 [ 53.802136] ---- ---- [ 53.802137] lock(&rq->lock); [ 53.802142] lock(&p->pi_lock); [ 53.802147] lock(&rq->lock); [ 53.802151] lock((console_sem).lock); [ 53.802155] [ 53.802157] *** DEADLOCK *** [ 53.802158] [ 53.802161] 4 locks held by syz-executor200/4464: [ 53.802162] #0: 00000000a6ae8c23 (cpu_hotplug_lock.rw_sem){++++}, at: static_key_slow_dec+0x57/0xa0 [ 53.802172] #1: 00000000217c637a (jump_label_mutex){+.+.}, at: __static_key_slow_dec_cpuslocked+0x82/0x210 [ 53.802182] #2: 0000000094029b88 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 53.802191] #3: 000000005095b315 (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190 [ 53.802201] [ 53.802202] stack backtrace: [ 53.802206] CPU: 1 PID: 4464 Comm: syz-executor200 Not tainted 4.18.0-next-20180824+ #47 [ 53.802211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.802212] Call Trace: [ 53.802215] dump_stack+0x1c9/0x2b4 [ 53.802217] ? dump_stack_print_info.cold.2+0x52/0x52 [ 53.802219] ? vprintk_func+0x100/0x117 [ 53.802222] print_circular_bug.isra.34.cold.55+0x1bd/0x27d [ 53.802224] ? save_trace+0xe0/0x290 [ 53.802227] __lock_acquire+0x3449/0x5020 [ 53.802229] ? mark_held_locks+0x160/0x160 [ 53.802231] ? mark_held_locks+0x160/0x160 [ 53.802234] ? update_load_avg+0x389/0x27d0 [ 53.802236] ? __update_load_avg_blocked_se+0x730/0x730 [ 53.802239] ? attach_entity_load_avg+0x860/0x860 [ 53.802241] ? graph_lock+0x170/0x170 [ 53.802244] ? attach_entity_load_avg+0x860/0x860 [ 53.802246] ? graph_lock+0x170/0x170 [ 53.802248] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.802250] lock_acquire+0x1e4/0x4f0 [ 53.802253] ? down_trylock+0x13/0x70 [ 53.802255] ? lock_release+0x9f0/0x9f0 [ 53.802257] ? trace_hardirqs_off+0xb8/0x2b0 [ 53.802260] ? trace_hardirqs_on+0x2c0/0x2c0 [ 53.802262] ? trace_hardirqs_off+0xb8/0x2b0 [ 53.802264] ? log_store+0x34f/0x4c0 [ 53.802266] ? vprintk_emit+0x31f/0x910 [ 53.802269] _raw_spin_lock_irqsave+0x96/0xc0 [ 53.802271] ? down_trylock+0x13/0x70 [ 53.802273] down_trylock+0x13/0x70 [ 53.802275] __down_trylock_console_sem+0xae/0x200 [ 53.802277] console_trylock+0x15/0xa0 [ 53.802280] vprintk_emit+0x31f/0x910 [ 53.802282] ? wake_up_klogd+0x110/0x110 [ 53.802284] ? __lock_acquire+0x7fc/0x5020 [ 53.802286] ? mark_held_locks+0x160/0x160 [ 53.802288] vprintk_default+0x28/0x30 [ 53.802290] vprintk_func+0x7a/0x117 [ 53.802292] printk+0xa7/0xcf [ 53.802295] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 53.802297] ? kasan_die_handler.cold.22+0x5/0x30 [ 53.802300] ? kasan_die_handler+0x1a/0x31 [ 53.802302] kasan_die_handler.cold.22+0x11/0x30 [ 53.802304] notifier_call_chain+0x180/0x390 [ 53.802307] ? unregister_die_notifier+0x20/0x20 [ 53.802309] ? rcu_is_watching+0x8c/0x150 [ 53.802312] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 53.802314] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 53.802316] ? cmp_ex_search+0x8c/0xb0 [ 53.802319] atomic_notifier_call_chain+0x98/0x190 [ 53.802321] notify_die+0x1be/0x2e0 [ 53.802323] ? __atomic_notifier_call_chain+0x1a0/0x1a0 [ 53.802326] ? search_module_extables+0x18/0xc0 [ 53.802328] ? __schedule+0xf48/0x1df0 [ 53.802330] ? __schedule+0xf48/0x1df0 [ 53.802333] ? search_exception_tables+0x47/0x50 [ 53.802335] do_general_protection+0x248/0x2f0 [ 53.802337] general_protection+0x1e/0x30 [ 53.802340] RIP: 0010:__schedule+0xf48/0x1df0 [ 53.802348] Code: 4c 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 94 09 00 00 4d 8b 6d 00 4d 85 ed 0f 84 84 f7 ff ff 49 8d 7d 10 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 a6 e8 7c 87 06 fb eb 9f 4c 89 e6 48 89 df e8 6f [ 53.802350] RSP: 0018:ffff8801d952ea80 EFLAGS: 00010806 [ 53.802355] RAX: 1bd5a00000000022 RBX: ffff8801d982e380 RCX: 1ffff1003b29f88f [ 53.802359] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 53.802362] RBP: ffff8801d952ec50 R08: ffff8801d982e380 R09: fffff520003c4a47 [ 53.802365] R10: fffff520003c4a47 R11: ffffc90001e2523b R12: ffff8801ca5e4400 [ 53.802369] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc40 [ 53.802371] ? mark_held_locks+0x160/0x160 [ 53.802373] ? print_usage_bug+0xc0/0xc0 [ 53.802376] ? __sched_text_start+0x8/0x8 [ 53.802378] ? generic_exec_single+0x1ea/0x5e0 [ 53.802380] ? __lock_is_held+0xb5/0x140 [ 53.802383] ? check_same_owner+0x340/0x340 [ 53.802386] ? smp_call_function_single+0x2d6/0x5c0 [ 53.802388] ? add_nops+0x90/0x90 [ 53.802390] ? arch_jump_label_transform+0x1b/0x40 [ 53.802393] preempt_schedule_common+0x22/0x60 [ 53.802395] _cond_resched+0x1d/0x30 [ 53.802397] __mutex_lock+0x13d/0x1700 [ 53.802399] ? fill_pte+0xd6/0x420 [ 53.802402] ? arch_jump_label_transform+0x1b/0x40 [ 53.802404] ? mutex_trylock+0x2b0/0x2b0 [ 53.802406] ? find_held_lock+0x36/0x1c0 [ 53.802409] ? lock_downgrade+0x8f0/0x8f0 [ 53.802411] ? trace_hardirqs_on+0xbd/0x2c0 [ 53.802414] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 53.802417] ? text_poke_bp+0x10c/0x16a [ 53.802420] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 53.802423] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 53.802425] ? kvm_arch_vcpu_ioctl+0x1e74/0x3ac0 [ 53.802427] ? kasan_check_write+0x14/0x20 [ 53.802430] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 53.802432] ? wait_for_completion+0x8d0/0x8d0 [ 53.802435] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 53.802438] ? __jump_label_transform.isra.0+0x478/0x8f0 [ 53.802440] ? modules_open+0xa0/0xa0 [ 53.802442] ? kvm_vm_release+0x42/0x50 [ 53.802444] ? get_trap_addr+0x1d0/0x1d0 [ 53.802447] ? do_group_exit+0x177/0x440 [ 53.802450] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.802452] ? jump_label_type+0x132/0x1d0 [ 53.802455] ? static_key_count+0x130/0x130 [ 53.802457] mutex_lock_nested+0x16/0x20 [ 53.802459] ? mutex_lock_nested+0x16/0x20 [ 53.802462] arch_jump_label_transform+0x1b/0x40 [ 53.802464] __jump_label_update+0x16e/0x1a0 [ 53.802467] jump_label_update+0x151/0x2e0 [ 53.802469] __static_key_slow_dec_cpuslocked+0xb8/0x210 [ 53.802472] ? static_key_disable+0x30/0x30 [ 53.802474] ? rcu_read_lock_sched_held+0x108/0x120 [ 53.802476] static_key_slow_dec+0x63/0xa0 [ 53.802479] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 53.802481] kvm_vcpu_uninit+0x44/0x90 [ 53.802483] vmx_free_vcpu+0x23a/0x300 [ 53.802486] kvm_arch_destroy_vm+0x365/0x7c0 [ 53.802487] ? kasan_check [ 53.802493] Lost 82 message(s)! [ 54.829809] ---[ end trace e8391bec2ec650d0 ]--- [ 54.834559] RIP: 0010:__schedule+0xf48/0x1df0 [ 54.839041] Code: 4c 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 94 09 00 00 4d 8b 6d 00 4d 85 ed 0f 84 84 f7 ff ff 49 8d 7d 10 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 a6 e8 7c 87 06 fb eb 9f 4c 89 e6 48 89 df e8 6f [ 54.857979] RSP: 0018:ffff8801d952ea80 EFLAGS: 00010806 [ 54.863350] RAX: 1bd5a00000000022 RBX: ffff8801d982e380 RCX: 1ffff1003b29f88f [ 54.870727] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 54.877983] RBP: ffff8801d952ec50 R08: ffff8801d982e380 R09: fffff520003c4a47 [ 54.885239] R10: fffff520003c4a47 R11: ffffc90001e2523b R12: ffff8801ca5e4400 [ 54.892588] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc40 [ 54.899879] FS: 0000000000f56880(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 54.908101] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.914041] CR2: 000000000044306e CR3: 00000001ca458000 CR4: 00000000001426e0 [ 54.921414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.928725] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.936039] Kernel panic - not syncing: Fatal exception [ 56.003200] Shutting down cpus with NMI [ 56.007577] Dumping ftrace buffer: [ 56.011110] (ftrace buffer empty) [ 56.014799] Kernel Offset: disabled [ 56.018409] Rebooting in 86400 seconds..