[....] Starting OpenBSD Secure Shell server: sshd[ 24.051254] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 28.502263] random: sshd: uninitialized urandom read (32 bytes read) [ 28.811435] sshd (5296) used greatest stack depth: 16408 bytes left [ 28.835803] random: sshd: uninitialized urandom read (32 bytes read) [ 29.468910] random: sshd: uninitialized urandom read (32 bytes read) [ 29.688951] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.57' (ECDSA) to the list of known hosts. [ 35.329818] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 35.456955] 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. [ 35.479760] kasan: CONFIG_KASAN_INLINE enabled [ 35.486807] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.494162] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.500389] CPU: 1 PID: 5312 Comm: syz-executor001 Not tainted 4.19.0-rc4+ #248 [ 35.507823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.517180] RIP: 0010:__schedule+0xfb7/0x1ed0 [ 35.521678] Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 0f 85 b9 09 00 00 4d 8b 24 24 4d 85 e4 0f 84 0b f7 ff ff 49 8d 7c 24 10 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 a4 e8 ed ed 03 fa eb 9d 48 89 de 4c 89 ff e8 00 [ 35.540575] RSP: 0018:ffff8801c2ddeda8 EFLAGS: 00010806 [ 35.545937] RAX: 1bd5a00000000022 RBX: ffff8801bdf12600 RCX: 1ffff100375ae88f [ 35.553216] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 35.560484] RBP: ffff8801c2ddef80 R08: ffff8801d8d20580 R09: fffff520003cc247 [ 35.567753] R10: fffff520003cc247 R11: ffffc90001e6123b R12: dead000000000100 [ 35.575019] R13: dffffc0000000000 R14: ffff8801daf2cb40 R15: ffff8801d8d20580 [ 35.582285] FS: 0000000001c12880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 35.590509] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.596388] CR2: 000000000043eede CR3: 000000000946a000 CR4: 00000000001426e0 [ 35.603653] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.610920] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.618179] Call Trace: [ 35.620777] ? trace_hardirqs_off+0x310/0x310 [ 35.625277] ? __sched_text_start+0x8/0x8 [ 35.629424] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.634182] ? retint_kernel+0x2d/0x2d [ 35.638076] ? vmx_set_virtual_apic_mode+0x7d0/0x7d0 [ 35.643178] ? generic_exec_single+0x419/0x5f0 [ 35.647762] ? generic_exec_single+0x41e/0x5f0 [ 35.652342] ? generic_exec_single+0x1f0/0x5f0 [ 35.656922] ? preempt_schedule+0x4d/0x60 [ 35.661074] preempt_schedule_common+0x1f/0xd0 [ 35.665657] preempt_schedule+0x4d/0x60 [ 35.669628] ___preempt_schedule+0x16/0x18 [ 35.673860] ? smp_call_function_single+0x2d2/0x660 [ 35.678872] ? smp_call_function_single+0x595/0x660 [ 35.683883] smp_call_function_single+0x59a/0x660 [ 35.688726] ? kvm_arch_vcpu_put+0x1d2/0x420 [ 35.693135] ? vmx_set_virtual_apic_mode+0x7d0/0x7d0 [ 35.698240] ? generic_exec_single+0x5f0/0x5f0 [ 35.702819] ? hardware_disable+0x530/0x530 [ 35.707143] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.712684] ? tg_nop+0x10/0x10 [ 35.715982] ? native_set_debugreg+0x31/0x40 [ 35.720402] free_loaded_vmcs+0x13c/0x1b0 [ 35.724547] vmx_free_vcpu+0x204/0x300 [ 35.728434] kvm_arch_destroy_vm+0x365/0x7c0 [ 35.732843] ? check_memory_region+0x113/0x1b0 [ 35.737425] ? kvm_arch_sync_events+0x30/0x30 [ 35.741921] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 35.747459] ? mmu_notifier_unregister+0x474/0x600 [ 35.752388] ? kfree+0x107/0x230 [ 35.755758] ? __mmu_notifier_register+0x30/0x30 [ 35.760512] ? __free_pages+0x10a/0x190 [ 35.764490] ? free_unref_page+0x960/0x960 [ 35.768733] kvm_put_kvm+0x6c8/0xff0 [ 35.772451] ? kvm_write_guest_cached+0x40/0x40 [ 35.777124] ? kvm_irqfd_release+0xd1/0x120 [ 35.781446] ? _raw_spin_unlock_irq+0x27/0x80 [ 35.785941] ? _raw_spin_unlock_irq+0x27/0x80 [ 35.790450] ? kasan_check_write+0x14/0x20 [ 35.794690] ? do_raw_spin_lock+0xc1/0x200 [ 35.798926] ? kvm_irqfd_release+0xdd/0x120 [ 35.803248] ? kvm_irqfd_release+0xdd/0x120 [ 35.807570] ? kvm_put_kvm+0xff0/0xff0 [ 35.811457] kvm_vm_release+0x42/0x50 [ 35.815257] __fput+0x385/0xa30 [ 35.818540] ? get_max_files+0x20/0x20 [ 35.822429] ? trace_hardirqs_on+0xbd/0x310 [ 35.826750] ? ___might_sleep+0x1ed/0x300 [ 35.830897] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 35.836347] ? arch_local_save_flags+0x40/0x40 [ 35.840928] ? kasan_check_write+0x14/0x20 [ 35.845163] ? do_raw_spin_lock+0xc1/0x200 [ 35.849401] ____fput+0x15/0x20 [ 35.852685] task_work_run+0x1e8/0x2a0 [ 35.856573] ? task_work_cancel+0x240/0x240 [ 35.860896] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 35.866435] ? switch_task_namespaces+0x9d/0xd0 [ 35.871116] do_exit+0x1ad7/0x2610 [ 35.874657] ? mm_update_next_owner+0x990/0x990 [ 35.879332] ? kvm_vcpu_ioctl+0x29c/0x1150 [ 35.883570] ? rcu_read_lock_sched_held+0x108/0x120 [ 35.888583] ? kfree+0x1fa/0x230 [ 35.891952] ? kvm_vcpu_ioctl+0x2a1/0x1150 [ 35.896194] ? kvm_vcpu_block+0x1030/0x1030 [ 35.900527] ? is_bpf_text_address+0xd3/0x170 [ 35.905023] ? kernel_text_address+0x79/0xf0 [ 35.909431] ? __kernel_text_address+0xd/0x40 [ 35.913925] ? unwind_get_return_address+0x61/0xa0 [ 35.918855] ? __save_stack_trace+0x8d/0xf0 [ 35.923180] ? save_stack+0xa9/0xd0 [ 35.926813] ? save_stack+0x43/0xd0 [ 35.930434] ? __kasan_slab_free+0x102/0x150 [ 35.934839] ? kasan_slab_free+0xe/0x10 [ 35.938808] ? putname+0xf2/0x130 [ 35.942258] ? __x64_sys_openat+0x9d/0x100 [ 35.946491] ? do_syscall_64+0x1b9/0x820 [ 35.950549] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.955914] ? trace_hardirqs_off+0xb8/0x310 [ 35.960318] ? kasan_check_read+0x11/0x20 [ 35.964464] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.968868] ? trace_hardirqs_on+0x310/0x310 [ 35.973278] ? __bpf_trace_initcall_finish+0x2a/0x30 [ 35.978380] ? trace_hardirqs_off+0xb8/0x310 [ 35.982787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.988321] ? check_preemption_disabled+0x48/0x200 [ 35.993332] ? check_preemption_disabled+0x48/0x200 [ 35.998347] ? kvm_vcpu_block+0x1030/0x1030 [ 36.002665] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.008199] ? do_vfs_ioctl+0x201/0x1720 [ 36.012268] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.017547] ? ioctl_preallocate+0x300/0x300 [ 36.021958] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.027502] ? __fget_light+0x2e9/0x430 [ 36.031476] ? fget_raw+0x20/0x20 [ 36.034928] ? putname+0xf2/0x130 [ 36.038377] ? rcu_read_lock_sched_held+0x108/0x120 [ 36.043395] ? kmem_cache_free+0x24f/0x290 [ 36.047822] ? putname+0xf7/0x130 [ 36.051281] do_group_exit+0x177/0x440 [ 36.055169] ? trace_hardirqs_on+0xbd/0x310 [ 36.059494] ? __ia32_sys_exit+0x50/0x50 [ 36.063558] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 36.069005] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.074539] ? ksys_ioctl+0x81/0xd0 [ 36.078167] __x64_sys_exit_group+0x3e/0x50 [ 36.082491] do_syscall_64+0x1b9/0x820 [ 36.086376] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.091737] ? syscall_return_slowpath+0x5e0/0x5e0 [ 36.096664] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.101503] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.106520] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 36.111539] ? prepare_exit_to_usermode+0x291/0x3b0 [ 36.116554] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.121398] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.126582] RIP: 0033:0x43ef08 [ 36.129775] Code: Bad RIP value. [ 36.133131] RSP: 002b:00007fff592da358 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 36.140838] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ef08 [ 36.148103] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 36.155372] RBP: 00000000004be7c8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 36.162636] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000000001 [ 36.169900] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 36.177167] Modules linked in: [ 36.180887] [ 36.180894] ====================================================== [ 36.180900] WARNING: possible circular locking dependency detected [ 36.180904] 4.19.0-rc4+ #248 Not tainted [ 36.180909] ------------------------------------------------------ [ 36.180914] syz-executor001/5312 is trying to acquire lock: [ 36.180918] 00000000e985bef4 ((console_sem).lock){-...}, at: down_trylock+0x13/0x70 [ 36.180933] [ 36.180937] but task is already holding lock: [ 36.180941] 00000000b408c704 (&rq->lock){-.-.}, at: __schedule+0x236/0x1ed0 [ 36.180956] [ 36.180960] which lock already depends on the new lock. [ 36.180969] [ 36.180971] [ 36.180977] the existing dependency chain (in reverse order) is: [ 36.180979] [ 36.180982] -> #2 (&rq->lock){-.-.}: [ 36.180996] _raw_spin_lock+0x2d/0x40 [ 36.181000] task_fork_fair+0xb0/0x6d0 [ 36.181004] sched_fork+0x443/0xba0 [ 36.181008] copy_process+0x2586/0x8780 [ 36.181012] _do_fork+0x1cb/0x11d0 [ 36.181016] kernel_thread+0x34/0x40 [ 36.181020] rest_init+0x22/0xe5 [ 36.181024] start_kernel+0x8f4/0x92f [ 36.181029] x86_64_start_reservations+0x29/0x2b [ 36.181033] x86_64_start_kernel+0x76/0x79 [ 36.181038] secondary_startup_64+0xa4/0xb0 [ 36.181040] [ 36.181042] -> #1 (&p->pi_lock){-.-.}: [ 36.181058] _raw_spin_lock_irqsave+0x99/0xd0 [ 36.181062] try_to_wake_up+0xd2/0x12f0 [ 36.181066] wake_up_process+0x10/0x20 [ 36.181070] __up.isra.1+0x1c0/0x2a0 [ 36.181073] up+0x13c/0x1c0 [ 36.181078] __up_console_sem+0xbe/0x1b0 [ 36.181082] console_unlock+0x814/0x1160 [ 36.181086] vprintk_emit+0x33d/0x930 [ 36.181090] vprintk_default+0x28/0x30 [ 36.181094] vprintk_func+0x7e/0x181 [ 36.181097] printk+0xa7/0xcf [ 36.181101] load_umh+0x51/0xbd [ 36.181105] do_one_initcall+0x145/0x957 [ 36.181110] kernel_init_freeable+0x4bb/0x5ae [ 36.181113] kernel_init+0x11/0x1b2 [ 36.181117] ret_from_fork+0x3a/0x50 [ 36.181120] [ 36.181122] -> #0 ((console_sem).lock){-...}: [ 36.181137] lock_acquire+0x1ed/0x520 [ 36.181142] _raw_spin_lock_irqsave+0x99/0xd0 [ 36.181146] down_trylock+0x13/0x70 [ 36.181150] __down_trylock_console_sem+0xae/0x200 [ 36.181154] console_trylock+0x15/0xa0 [ 36.181158] vprintk_emit+0x322/0x930 [ 36.181162] vprintk_default+0x28/0x30 [ 36.181166] vprintk_func+0x7e/0x181 [ 36.181170] printk+0xa7/0xcf [ 36.181174] kasan_die_handler.cold.22+0x11/0x30 [ 36.181179] notifier_call_chain+0x17e/0x380 [ 36.181184] atomic_notifier_call_chain+0x96/0x190 [ 36.181187] notify_die+0x1bd/0x2d0 [ 36.181192] do_general_protection+0x248/0x2f0 [ 36.181196] general_protection+0x1e/0x30 [ 36.181200] __schedule+0xfb7/0x1ed0 [ 36.181266] preempt_schedule_common+0x1f/0xd0 [ 36.181271] preempt_schedule+0x4d/0x60 [ 36.181275] ___preempt_schedule+0x16/0x18 [ 36.181280] smp_call_function_single+0x59a/0x660 [ 36.181284] free_loaded_vmcs+0x13c/0x1b0 [ 36.181288] vmx_free_vcpu+0x204/0x300 [ 36.181293] kvm_arch_destroy_vm+0x365/0x7c0 [ 36.181297] kvm_put_kvm+0x6c8/0xff0 [ 36.181301] kvm_vm_release+0x42/0x50 [ 36.181305] __fput+0x385/0xa30 [ 36.181308] ____fput+0x15/0x20 [ 36.181312] task_work_run+0x1e8/0x2a0 [ 36.181316] do_exit+0x1ad7/0x2610 [ 36.181320] do_group_exit+0x177/0x440 [ 36.181325] __x64_sys_exit_group+0x3e/0x50 [ 36.181329] do_syscall_64+0x1b9/0x820 [ 36.181334] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.181336] [ 36.181341] other info that might help us debug this: [ 36.181343] [ 36.181346] Chain exists of: [ 36.181349] (console_sem).lock --> &p->pi_lock --> &rq->lock [ 36.181368] [ 36.181372] Possible unsafe locking scenario: [ 36.181374] [ 36.181379] CPU0 CPU1 [ 36.181383] ---- ---- [ 36.181386] lock(&rq->lock); [ 36.181395] lock(&p->pi_lock); [ 36.181405] lock(&rq->lock); [ 36.181413] lock((console_sem).lock); [ 36.181422] [ 36.181425] *** DEADLOCK *** [ 36.181427] [ 36.181432] 2 locks held by syz-executor001/5312: [ 36.181434] #0: 00000000b408c704 (&rq->lock){-.-.}, at: __schedule+0x236/0x1ed0 [ 36.181452] #1: 00000000753dc81c (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190 [ 36.181471] [ 36.181474] stack backtrace: [ 36.181480] CPU: 1 PID: 5312 Comm: syz-executor001 Not tainted 4.19.0-rc4+ #248 [ 36.181488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.181491] Call Trace: [ 36.181495] dump_stack+0x1c4/0x2b4 [ 36.181500] ? dump_stack_print_info.cold.2+0x52/0x52 [ 36.181504] ? vprintk_func+0x85/0x181 [ 36.181509] print_circular_bug.isra.33.cold.54+0x1bd/0x27d [ 36.181513] ? save_trace+0xe0/0x290 [ 36.181518] __lock_acquire+0x33e4/0x4ec0 [ 36.181522] ? mark_held_locks+0x130/0x130 [ 36.181527] ? mark_held_locks+0x130/0x130 [ 36.181531] ? graph_lock+0x170/0x170 [ 36.181535] ? update_load_avg+0x387/0x2470 [ 36.181540] ? attach_entity_load_avg+0x860/0x860 [ 36.181544] ? update_load_avg+0x387/0x2470 [ 36.181548] ? __lock_acquire+0x7ec/0x4ec0 [ 36.181553] ? try_to_wake_up+0x10a/0x12f0 [ 36.181557] ? lock_downgrade+0x900/0x900 [ 36.181561] ? attach_entity_load_avg+0x860/0x860 [ 36.181565] ? graph_lock+0x170/0x170 [ 36.181570] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 36.181575] lock_acquire+0x1ed/0x520 [ 36.181579] ? down_trylock+0x13/0x70 [ 36.181583] ? find_held_lock+0x36/0x1c0 [ 36.181587] ? lock_release+0x970/0x970 [ 36.181591] ? trace_hardirqs_off+0xb8/0x310 [ 36.181596] ? vprintk_emit+0x1d3/0x930 [ 36.181600] ? trace_hardirqs_on+0x310/0x310 [ 36.181604] ? trace_hardirqs_off+0xb8/0x310 [ 36.181609] ? log_store+0x344/0x4c0 [ 36.181613] ? vprintk_emit+0x322/0x930 [ 36.181617] _raw_spin_lock_irqsave+0x99/0xd0 [ 36.181621] ? down_trylock+0x13/0x70 [ 36.181625] down_trylock+0x13/0x70 [ 36.181630] __down_trylock_console_sem+0xae/0x200 [ 36.181634] console_trylock+0x15/0xa0 [ 36.181638] vprintk_emit+0x322/0x930 [ 36.181642] ? wake_up_klogd+0x180/0x180 [ 36.181646] ? __lock_acquire+0x7ec/0x4ec0 [ 36.181651] ? mark_held_locks+0x130/0x130 [ 36.181655] vprintk_default+0x28/0x30 [ 36.181659] vprintk_func+0x7e/0x181 [ 36.181663] printk+0xa7/0xcf [ 36.181667] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 36.181672] ? kasan_die_handler.cold.22+0x5/0x30 [ 36.181676] ? kasan_die_handler+0x1a/0x31 [ 36.181681] kasan_die_handler.cold.22+0x11/0x30 [ 36.181685] notifier_call_chain+0x17e/0x380 [ 36.181690] ? unregister_die_notifier+0x20/0x20 [ 36.181694] ? kasan_check_read+0x11/0x20 [ 36.181699] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.181703] ? rcu_bh_qs+0xc0/0xc0 [ 36.181707] ? rcu_bh_qs+0xc0/0xc0 [ 36.181711] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 36.181716] atomic_notifier_call_chain+0x96/0x190 [ 36.181720] notify_die+0x1bd/0x2d0 [ 36.181725] ? __atomic_notifier_call_chain+0x1a0/0x1a0 [ 36.181729] ? search_module_extables+0x98/0xe0 [ 36.181734] ? __schedule+0xfb7/0x1ed0 [ 36.181738] ? __schedule+0xfb7/0x1ed0 [ 36.181742] ? search_exception_tables+0x47/0x50 [ 36.181747] do_general_protection+0x248/0x2f0 [ 36.181751] general_protection+0x1e/0x30 [ 36.181755] RIP: 0010:__schedule+0xfb7/0x1ed0 [ 36.181769] Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 0f 85 b9 09 00 00 4d 8b 24 24 4d 85 e4 0f 84 0b f7 ff ff 49 8d 7c 24 10 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 a4 e8 ed ed 03 fa eb 9d 48 89 de 4c 89 ff e8 00 [ 36.181773] RSP: 0018:ffff8801c2ddeda8 EFLAGS: 00010806 [ 36.181782] RAX: 1bd5a00000000022 RBX: ffff8801bdf12600 RCX: 1ffff100375ae88f [ 36.181788] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 36.181794] RBP: ffff8801c2ddef80 R08: ffff8801d8d20580 R09: fffff520003cc247 [ 36.181801] R10: fffff520003cc247 R11: ffffc90001e6123b R12: dead000000000100 [ 36.181807] R13: dffffc0000000000 R14: ffff8801daf2cb40 R15: ffff8801d8d20580 [ 36.181811] ? __schedule+0xf8c/0x1ed0 [ 36.181815] ? trace_hardirqs_off+0x310/0x310 [ 36.181820] ? __sched_text_start+0x8/0x8 [ 36.181824] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.181828] ? retint_kernel+0x2d/0x2d [ 36.181833] ? vmx_set_virtual_apic_mode+0x7d0/0x7d0 [ 36.181838] ? generic_exec_single+0x419/0x5f0 [ 36.181842] ? generic_exec_single+0x41e/0x5f0 [ 36.181847] ? generic_exec_single+0x1f0/0x5f0 [ 36.181851] ? preempt_schedule+0x4d/0x60 [ 36.181856] preempt_schedule_common+0x1f/0xd0 [ 36.181860] preempt_schedule+0x4d/0x60 [ 36.181864] ___preempt_schedule+0x16/0x18 [ 36.181869] ? smp_call_function_single+0x2d2/0x660 [ 36.181874] ? smp_call_function_single+0x595/0x660 [ 36.181879] smp_call_function_single+0x59a/0x660 [ 36.181883] ? kvm_arch_vcpu_put+0x1d2/0x420 [ 36.181888] ? vmx_set_virtual_apic_mode+0x7d0/0x7d0 [ 36.181892] ? generic_exec_single+0x5f0/0x5f0 [ 36.181897] ? hardware_disable+0x530/0x530 [ 36.181902] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.181906] ? tg_nop+0x10/0x10 [ 36.181910] ? native_set_debugreg+0x31/0x40 [ 36.181914] free_loaded_vmcs+0x13c/0x1b0 [ 36.181918] vmx_free_vcpu+0x204/0x300 [ 36.181923] kvm_arch_destroy_vm+0x365/0x7c0 [ 36.181927] ? check_memory_region+0x113/0x1b0 [ 36.181932] ? kvm_arch_sync_events+0x30/0x30 [ 36.181937] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 36.181941] ? mmu_notifier_unregister+0x474/0x600 [ 36.181945] ? kfree+0x107/0x230 [ 36.181950] ? __mmu_notifier_register+0x30/0x30 [ 36.181954] ? __free_pages+0x10a/0x190 [ 36.181958] ? free_unref_page+0x960/0x960 [ 36.181968] kvm_put_kvm+0x6c8/0xff0 [ 36.181973] ? kvm_write_guest_cached+0x40/0x40 [ 36.181977] ? kvm_irqfd_release+0xd1/0x120 [ 36.181982] ? _raw_spin_unlock_irq+0x27/0x80 [ 36.181986] ? _raw_spin_unlock_irq+0x27/0x80 [ 36.181990] ? kasan_check_write+0x14/0x20 [ 36.181995] ? do_raw_spin_lock+0xc1/0x200 [ 36.181999] ? kvm_irqfd_release+0xdd/0x120 [ 36.182003] ? kvm_irqfd_release+0xdd/0x120 [ 36.182007] ? kvm_put_kvm+0xff0/0xff0 [ 36.182011] kvm_vm_release+0x42/0x50 [ 36.182015] __fput+0x385/0xa30 [ 36.182019] ? get_max_files+0x20/0x20 [ 36.182024] ? trace_hardirqs_on+0xbd/0x310 [ 36.182028] ? ___might_sleep+0x1ed/0x300 [ 36.182033] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 36.182037] ? arch_local_save_flags+0x40/0x40 [ 36.182042] ? kasan_check_write+0x14/0x20 [ 36.182046] ? do_raw_spin_lock+0xc1/0x200 [ 36.182049] ____fput+0x15/0x20 [ 36.182054] task_work_run+0x1e8/0x2a0 [ 36.182058] ? task_work_cancel+0x240/0x240 [ 36.182063] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 36.182067] ? switch_task_namespaces+0x9d/0 [ 36.182075] Lost 66 message(s)! [ 37.216399] ---[ end trace 6b0943d3c61e2fe6 ]--- [ 37.221158] RIP: 0010:__schedule+0xfb7/0x1ed0 [ 37.225653] Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 0f 85 b9 09 00 00 4d 8b 24 24 4d 85 e4 0f 84 0b f7 ff ff 49 8d 7c 24 10 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 a4 e8 ed ed 03 fa eb 9d 48 89 de 4c 89 ff e8 00 [ 37.244550] RSP: 0018:ffff8801c2ddeda8 EFLAGS: 00010806 [ 37.249907] RAX: 1bd5a00000000022 RBX: ffff8801bdf12600 RCX: 1ffff100375ae88f [ 37.257172] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 37.264442] RBP: ffff8801c2ddef80 R08: ffff8801d8d20580 R09: fffff520003cc247 [ 37.271709] R10: fffff520003cc247 R11: ffffc90001e6123b R12: dead000000000100 [ 37.278976] R13: dffffc0000000000 R14: ffff8801daf2cb40 R15: ffff8801d8d20580 [ 37.286248] FS: 0000000001c12880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.294468] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.300348] CR2: 000000000043eede CR3: 000000000946a000 CR4: 00000000001426e0 [ 37.307612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.314881] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.322146] Kernel panic - not syncing: Fatal exception [ 38.502889] Shutting down cpus with NMI [ 38.507878] Kernel Offset: disabled [ 38.511502] Rebooting in 86400 seconds..