[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 24.448550] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 25.404365] random: sshd: uninitialized urandom read (32 bytes read) [ 25.748645] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 26.318037] random: sshd: uninitialized urandom read (32 bytes read) [ 26.503365] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.10' (ECDSA) to the list of known hosts. [ 32.215883] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 32.319666] 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. [ 32.343949] hrtimer: interrupt took 33824 ns [ 32.356350] kasan: CONFIG_KASAN_INLINE enabled [ 32.363549] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.370921] general protection fault: 0000 [#1] SMP KASAN [ 32.376456] CPU: 1 PID: 4721 Comm: syz-executor823 Not tainted 4.19.0-rc1+ #122 [ 32.383908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.393282] RIP: 0010:__schedule+0xf48/0x1df0 [ 32.397774] 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 dc 99 e8 fa eb 9f 4c 89 e6 48 89 df e8 af [ 32.416671] RSP: 0018:ffff8801b69ae660 EFLAGS: 00010806 [ 32.422032] RAX: 1bd5a00000000022 RBX: ffff8801d97d42c0 RCX: 1ffff10036d3088f [ 32.429294] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 32.436561] RBP: ffff8801b69ae830 R08: ffff8801d97d42c0 R09: fffff520003d1a47 [ 32.443836] R10: fffff520003d1a47 R11: ffffc90001e8d23b R12: ffff8801d98fc280 [ 32.451096] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc80 [ 32.458375] FS: 0000000000000000(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 32.466593] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 32.472478] CR2: 0000000020000216 CR3: 00000001b6c42000 CR4: 00000000001426e0 [ 32.479754] Call Trace: [ 32.482350] ? __sched_text_start+0x8/0x8 [ 32.486504] ? generic_exec_single+0x1ea/0x5e0 [ 32.491089] ? __lock_is_held+0xb5/0x140 [ 32.495156] ? check_same_owner+0x340/0x340 [ 32.499490] ? smp_call_function_single+0x2d6/0x5c0 [ 32.504505] ? add_nops+0x90/0x90 [ 32.507991] ? arch_jump_label_transform+0x1b/0x40 [ 32.512922] preempt_schedule_common+0x22/0x60 [ 32.517506] _cond_resched+0x1d/0x30 [ 32.521223] __mutex_lock+0x13d/0x1700 [ 32.525120] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.530657] ? fill_pte+0xd6/0x420 [ 32.534203] ? arch_jump_label_transform+0x1b/0x40 [ 32.539133] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.544153] ? find_next_and_bit+0x165/0x1d0 [ 32.548558] ? mutex_trylock+0x2b0/0x2b0 [ 32.552617] ? find_held_lock+0x36/0x1c0 [ 32.556680] ? lock_downgrade+0x8f0/0x8f0 [ 32.560840] ? trace_hardirqs_on+0xbd/0x2c0 [ 32.565158] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 32.570267] ? text_poke_bp+0x14e/0x1de [ 32.574246] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 32.579350] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 32.584105] ? kvm_arch_vcpu_ioctl+0x1e74/0x3ac0 [ 32.588859] ? kasan_check_write+0x14/0x20 [ 32.593093] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 32.598020] ? wait_for_completion+0x8d0/0x8d0 [ 32.602603] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 32.607355] ? __jump_label_transform.isra.0+0x478/0x8f0 [ 32.612804] ? modules_open+0xa0/0xa0 [ 32.616600] ? kvm_vm_release+0x42/0x50 [ 32.620573] ? get_trap_addr+0x1d0/0x1d0 [ 32.624630] ? do_group_exit+0x177/0x440 [ 32.628691] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.634226] ? jump_label_type+0x132/0x1d0 [ 32.638479] mutex_lock_nested+0x16/0x20 [ 32.642541] ? mutex_lock_nested+0x16/0x20 [ 32.646775] arch_jump_label_transform+0x1b/0x40 [ 32.651533] __jump_label_update+0x16e/0x1a0 [ 32.655944] jump_label_update+0x151/0x2e0 [ 32.660193] __static_key_slow_dec_cpuslocked+0xb8/0x210 [ 32.665641] ? static_key_disable+0x30/0x30 [ 32.669975] ? rcu_read_lock_sched_held+0x108/0x120 [ 32.675011] static_key_slow_dec+0x63/0xa0 [ 32.679256] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 32.683752] kvm_vcpu_uninit+0x44/0x90 [ 32.687633] vmx_free_vcpu+0x23a/0x300 [ 32.691516] kvm_arch_destroy_vm+0x365/0x7c0 [ 32.695932] ? kasan_check_read+0x3/0x20 [ 32.700023] ? kvm_arch_sync_events+0x30/0x30 [ 32.704518] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.710057] ? mmu_notifier_unregister+0x474/0x600 [ 32.714988] ? trace_hardirqs_on+0x2c0/0x2c0 [ 32.719394] ? kfree+0x111/0x210 [ 32.722757] ? __mmu_notifier_register+0x30/0x30 [ 32.727525] ? __free_pages+0x10a/0x190 [ 32.731516] ? free_unref_page+0x930/0x930 [ 32.735758] kvm_put_kvm+0x73f/0x1060 [ 32.739563] ? kvm_write_guest_cached+0x40/0x40 [ 32.744234] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.748725] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.753220] ? kasan_check_write+0x14/0x20 [ 32.757449] ? do_raw_spin_lock+0xc1/0x200 [ 32.761692] ? kvm_irqfd_release+0xdd/0x120 [ 32.766013] ? kvm_irqfd_release+0xdd/0x120 [ 32.770332] ? kvm_put_kvm+0x1060/0x1060 [ 32.774391] kvm_vm_release+0x42/0x50 [ 32.778188] __fput+0x38a/0xa40 [ 32.781464] ? __alloc_file+0x400/0x400 [ 32.785475] ? check_same_owner+0x340/0x340 [ 32.789791] ? kasan_check_write+0x14/0x20 [ 32.794029] ? do_raw_spin_lock+0xc1/0x200 [ 32.798263] ____fput+0x15/0x20 [ 32.801541] task_work_run+0x1e8/0x2a0 [ 32.805423] ? task_work_cancel+0x240/0x240 [ 32.809743] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.815278] ? switch_task_namespaces+0xa2/0xd0 [ 32.819966] do_exit+0x1ae4/0x26e0 [ 32.823510] ? mm_update_next_owner+0x9a0/0x9a0 [ 32.828175] ? profiling_store+0xd0/0xd0 [ 32.832240] ? do_coredump+0x477/0x3fff [ 32.836231] ? _raw_read_unlock_irqrestore+0x60/0xc0 [ 32.841355] ? dump_align+0xa0/0xa0 [ 32.844984] ? save_stack+0xa9/0xd0 [ 32.848606] ? save_stack+0x43/0xd0 [ 32.852229] ? __kasan_slab_free+0x11a/0x170 [ 32.856631] ? kasan_slab_free+0xe/0x10 [ 32.860599] ? __sigqueue_free.part.29+0x7d/0xa0 [ 32.865348] ? __dequeue_signal+0x530/0x7d0 [ 32.869676] ? dequeue_signal+0xbc/0x620 [ 32.873731] ? get_signal+0x3f0/0x18e0 [ 32.877610] ? do_signal+0x9c/0x21c0 [ 32.881340] ? exit_to_usermode_loop+0x2e5/0x380 [ 32.886090] ? prepare_exit_to_usermode+0x342/0x3b0 [ 32.891104] ? trace_hardirqs_off+0xb8/0x2b0 [ 32.895506] ? kasan_check_read+0x11/0x20 [ 32.899650] ? do_raw_spin_unlock+0xa7/0x2f0 [ 32.904054] ? trace_hardirqs_on+0x2c0/0x2c0 [ 32.908456] ? kasan_check_write+0x14/0x20 [ 32.912686] ? graph_lock+0x170/0x170 [ 32.916490] ? trace_hardirqs_off+0xb8/0x2b0 [ 32.920898] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 32.926012] ? __lock_is_held+0xb5/0x140 [ 32.930071] ? __sigqueue_free.part.29+0x7d/0xa0 [ 32.934819] ? graph_lock+0x170/0x170 [ 32.938615] ? __sigqueue_free.part.29+0x7d/0xa0 [ 32.943372] ? lockdep_hardirqs_on+0x421/0x5c0 [ 32.947953] ? retint_kernel+0x10/0x10 [ 32.951847] ? trace_hardirqs_on_caller+0xc0/0x2b0 [ 32.956771] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.961521] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 32.966984] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.972525] ? proc_coredump_connector+0x4d0/0x610 [ 32.977452] ? proc_comm_connector+0x500/0x500 [ 32.982042] do_group_exit+0x177/0x440 [ 32.986188] ? __ia32_sys_exit+0x50/0x50 [ 32.990255] get_signal+0x851/0x18e0 [ 32.993983] ? ptrace_notify+0x130/0x130 [ 32.998050] ? lock_release+0x9f0/0x9f0 [ 33.002026] ? __bad_area_nosemaphore+0x311/0x3f0 [ 33.006884] do_signal+0x9c/0x21c0 [ 33.010421] ? __bad_area+0x159/0x200 [ 33.014220] ? bad_area_nosemaphore+0x40/0x40 [ 33.018712] ? setup_sigcontext+0x7d0/0x7d0 [ 33.023036] ? vmacache_find+0x65/0x320 [ 33.027019] ? bad_area_access_error+0x1f2/0x2e0 [ 33.031771] ? find_vma+0x34/0x190 [ 33.035323] ? __do_page_fault+0x449/0xe50 [ 33.039556] ? exit_to_usermode_loop+0x8c/0x380 [ 33.044236] exit_to_usermode_loop+0x2e5/0x380 [ 33.048816] ? syscall_slow_exit_work+0x490/0x490 [ 33.053657] ? trace_hardirqs_off_caller+0xbb/0x2b0 [ 33.058673] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.063512] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.068357] prepare_exit_to_usermode+0x342/0x3b0 [ 33.073200] ? perf_trace_sys_enter+0xb10/0xb10 [ 33.077868] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.082706] ? page_fault+0x8/0x30 [ 33.086243] retint_user+0x8/0x18 [ 33.089689] RIP: 0023:0x20000240 [ 33.093053] Code: Bad RIP value. [ 33.096885] RSP: 002b:00000000ffd9f910 EFLAGS: 00010203 [ 33.102243] RAX: 0000000000000009 RBX: 0000000000000001 RCX: 000000000000ae41 [ 33.109507] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000008 [ 33.116771] RBP: 000000000806fc06 R08: 0000000000000000 R09: 0000000000000000 [ 33.124036] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 33.131299] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.138562] Modules linked in: [ 33.141750] Dumping ftrace buffer: [ 33.145282] (ftrace buffer empty) [ 33.149005] [ 33.149011] ====================================================== [ 33.149016] WARNING: possible circular locking dependency detected [ 33.149019] 4.19.0-rc1+ #122 Not tainted [ 33.149025] ------------------------------------------------------ [ 33.149029] syz-executor823/4721 is trying to acquire lock: [ 33.149032] 00000000a5ecf44c ((console_sem).lock){-...}, at: down_trylock+0x13/0x70 [ 33.149047] [ 33.149050] but task is already holding lock: [ 33.149053] 000000007f4c08f8 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 33.149067] [ 33.149071] which lock already depends on the new lock. [ 33.149073] [ 33.149076] [ 33.149093] the existing dependency chain (in reverse order) is: [ 33.149095] [ 33.149097] -> #2 (&rq->lock){-.-.}: [ 33.149111] _raw_spin_lock+0x2a/0x40 [ 33.149115] task_fork_fair+0x93/0x680 [ 33.149119] sched_fork+0x44b/0xbd0 [ 33.149122] copy_process+0x235e/0x7ad0 [ 33.149126] _do_fork+0x1ca/0x1170 [ 33.149130] kernel_thread+0x34/0x40 [ 33.149133] rest_init+0x22/0xe4 [ 33.149137] start_kernel+0x913/0x94e [ 33.149142] x86_64_start_reservations+0x29/0x2b [ 33.149146] x86_64_start_kernel+0x76/0x79 [ 33.149150] secondary_startup_64+0xa4/0xb0 [ 33.149152] [ 33.149154] -> #1 (&p->pi_lock){-.-.}: [ 33.149169] _raw_spin_lock_irqsave+0x96/0xc0 [ 33.149173] try_to_wake_up+0xd2/0x1250 [ 33.149176] wake_up_process+0x10/0x20 [ 33.149180] __up.isra.1+0x1c0/0x2a0 [ 33.149184] up+0x13c/0x1c0 [ 33.149187] __up_console_sem+0xbe/0x1b0 [ 33.149191] console_unlock+0x506/0x10d0 [ 33.149195] vprintk_emit+0x33a/0x910 [ 33.149199] vprintk_default+0x28/0x30 [ 33.149203] vprintk_func+0x7a/0x117 [ 33.149206] printk+0xa7/0xcf [ 33.149210] do_exit.cold.22+0x120/0x21f [ 33.149214] do_group_exit+0x177/0x440 [ 33.149218] __x64_sys_exit_group+0x3e/0x50 [ 33.149222] do_syscall_64+0x1b9/0x820 [ 33.149226] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.149228] [ 33.149231] -> #0 ((console_sem).lock){-...}: [ 33.149245] lock_acquire+0x1e4/0x4f0 [ 33.149249] _raw_spin_lock_irqsave+0x96/0xc0 [ 33.149253] down_trylock+0x13/0x70 [ 33.149257] __down_trylock_console_sem+0xae/0x200 [ 33.149261] console_trylock+0x15/0xa0 [ 33.149264] vprintk_emit+0x31f/0x910 [ 33.149268] vprintk_default+0x28/0x30 [ 33.149272] vprintk_func+0x7a/0x117 [ 33.149275] printk+0xa7/0xcf [ 33.149280] kasan_die_handler.cold.22+0x11/0x30 [ 33.149284] notifier_call_chain+0x180/0x390 [ 33.149288] atomic_notifier_call_chain+0x98/0x190 [ 33.149292] notify_die+0x1be/0x2e0 [ 33.149296] do_general_protection+0x248/0x2f0 [ 33.149300] general_protection+0x1e/0x30 [ 33.149304] __schedule+0xf48/0x1df0 [ 33.149308] preempt_schedule_common+0x22/0x60 [ 33.149312] _cond_resched+0x1d/0x30 [ 33.149315] __mutex_lock+0x13d/0x1700 [ 33.149319] mutex_lock_nested+0x16/0x20 [ 33.149324] arch_jump_label_transform+0x1b/0x40 [ 33.149328] __jump_label_update+0x16e/0x1a0 [ 33.149332] jump_label_update+0x151/0x2e0 [ 33.149337] __static_key_slow_dec_cpuslocked+0xb8/0x210 [ 33.149341] static_key_slow_dec+0x63/0xa0 [ 33.149345] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 33.149349] kvm_vcpu_uninit+0x44/0x90 [ 33.149352] vmx_free_vcpu+0x23a/0x300 [ 33.149357] kvm_arch_destroy_vm+0x365/0x7c0 [ 33.149360] kvm_put_kvm+0x73f/0x1060 [ 33.149364] kvm_vm_release+0x42/0x50 [ 33.149368] __fput+0x38a/0xa40 [ 33.149371] ____fput+0x15/0x20 [ 33.149375] task_work_run+0x1e8/0x2a0 [ 33.149379] do_exit+0x1ae4/0x26e0 [ 33.149382] do_group_exit+0x177/0x440 [ 33.149386] get_signal+0x851/0x18e0 [ 33.149390] do_signal+0x9c/0x21c0 [ 33.149394] exit_to_usermode_loop+0x2e5/0x380 [ 33.149398] prepare_exit_to_usermode+0x342/0x3b0 [ 33.149402] retint_user+0x8/0x18 [ 33.149404] [ 33.149408] other info that might help us debug this: [ 33.149411] [ 33.149414] Chain exists of: [ 33.149416] (console_sem).lock --> &p->pi_lock --> &rq->lock [ 33.149434] [ 33.149438] Possible unsafe locking scenario: [ 33.149440] [ 33.149444] CPU0 CPU1 [ 33.149448] ---- ---- [ 33.149450] lock(&rq->lock); [ 33.149459] lock(&p->pi_lock); [ 33.149468] lock(&rq->lock); [ 33.149482] lock((console_sem).lock); [ 33.149490] [ 33.149493] *** DEADLOCK *** [ 33.149495] [ 33.149499] 4 locks held by syz-executor823/4721: [ 33.149502] #0: 00000000753f7a7c (cpu_hotplug_lock.rw_sem){++++}, at: static_key_slow_dec+0x57/0xa0 [ 33.149519] #1: 00000000af8f55ae (jump_label_mutex){+.+.}, at: __static_key_slow_dec_cpuslocked+0x82/0x210 [ 33.149537] #2: 000000007f4c08f8 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 33.149554] #3: 000000009ab3d2b9 (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190 [ 33.149571] [ 33.149574] stack backtrace: [ 33.149580] CPU: 1 PID: 4721 Comm: syz-executor823 Not tainted 4.19.0-rc1+ #122 [ 33.149587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.149590] Call Trace: [ 33.149593] dump_stack+0x1c9/0x2b4 [ 33.149598] ? dump_stack_print_info.cold.2+0x52/0x52 [ 33.149602] ? vprintk_func+0x100/0x117 [ 33.149606] print_circular_bug.isra.34.cold.55+0x1bd/0x27d [ 33.149610] ? save_trace+0xe0/0x290 [ 33.149614] __lock_acquire+0x3449/0x5020 [ 33.149618] ? mark_held_locks+0x160/0x160 [ 33.149622] ? mark_held_locks+0x160/0x160 [ 33.149626] ? update_load_avg+0x389/0x27d0 [ 33.149631] ? __update_load_avg_blocked_se+0x730/0x730 [ 33.149635] ? attach_entity_load_avg+0x860/0x860 [ 33.149639] ? graph_lock+0x170/0x170 [ 33.149643] ? attach_entity_load_avg+0x860/0x860 [ 33.149647] ? graph_lock+0x170/0x170 [ 33.149651] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 33.149655] lock_acquire+0x1e4/0x4f0 [ 33.149659] ? down_trylock+0x13/0x70 [ 33.149663] ? lock_release+0x9f0/0x9f0 [ 33.149667] ? trace_hardirqs_off+0xb8/0x2b0 [ 33.149671] ? trace_hardirqs_on+0x2c0/0x2c0 [ 33.149675] ? trace_hardirqs_off+0xb8/0x2b0 [ 33.149679] ? log_store+0x34f/0x4c0 [ 33.149682] ? vprintk_emit+0x31f/0x910 [ 33.149686] _raw_spin_lock_irqsave+0x96/0xc0 [ 33.149690] ? down_trylock+0x13/0x70 [ 33.149694] down_trylock+0x13/0x70 [ 33.149698] __down_trylock_console_sem+0xae/0x200 [ 33.149702] console_trylock+0x15/0xa0 [ 33.149706] vprintk_emit+0x31f/0x910 [ 33.149709] ? wake_up_klogd+0x110/0x110 [ 33.149713] ? __lock_acquire+0x7fc/0x5020 [ 33.149717] ? mark_held_locks+0x160/0x160 [ 33.149721] vprintk_default+0x28/0x30 [ 33.149725] vprintk_func+0x7a/0x117 [ 33.149728] printk+0xa7/0xcf [ 33.149732] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 33.149737] ? perf_event_update_userpage+0xd30/0xd30 [ 33.149741] ? kasan_die_handler.cold.22+0x5/0x30 [ 33.149745] ? kasan_die_handler+0x1a/0x31 [ 33.149749] kasan_die_handler.cold.22+0x11/0x30 [ 33.149753] notifier_call_chain+0x180/0x390 [ 33.149758] ? unregister_die_notifier+0x20/0x20 [ 33.149762] ? rcu_is_watching+0x8c/0x150 [ 33.149766] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 33.149770] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 33.149774] ? cmp_ex_search+0x8c/0xb0 [ 33.149778] atomic_notifier_call_chain+0x98/0x190 [ 33.149782] notify_die+0x1be/0x2e0 [ 33.149786] ? __atomic_notifier_call_chain+0x1a0/0x1a0 [ 33.149790] ? search_module_extables+0x18/0xc0 [ 33.149794] ? __schedule+0xf48/0x1df0 [ 33.149798] ? __schedule+0xf48/0x1df0 [ 33.149802] ? search_exception_tables+0x47/0x50 [ 33.149806] do_general_protection+0x248/0x2f0 [ 33.149810] general_protection+0x1e/0x30 [ 33.149814] RIP: 0010:__schedule+0xf48/0x1df0 [ 33.149827] 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 dc 99 e8 fa eb 9f 4c 89 e6 48 89 df e8 af [ 33.149831] RSP: 0018:ffff8801b69ae660 EFLAGS: 00010806 [ 33.149840] RAX: 1bd5a00000000022 RBX: ffff8801d97d42c0 RCX: 1ffff10036d3088f [ 33.149845] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 33.149851] RBP: ffff8801b69ae830 R08: ffff8801d97d42c0 R09: fffff520003d1a47 [ 33.149857] R10: fffff520003d1a47 R11: ffffc90001e8d23b R12: ffff8801d98fc280 [ 33.149862] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc80 [ 33.149866] ? __sched_text_start+0x8/0x8 [ 33.149871] ? generic_exec_single+0x1ea/0x5e0 [ 33.149874] ? __lock_is_held+0xb5/0x140 [ 33.149878] ? check_same_owner+0x340/0x340 [ 33.149883] ? smp_call_function_single+0x2d6/0x5c0 [ 33.149886] ? add_nops+0x90/0x90 [ 33.149891] ? arch_jump_label_transform+0x1b/0x40 [ 33.149895] preempt_schedule_common+0x22/0x60 [ 33.149899] _cond_resched+0x1d/0x30 [ 33.149902] __mutex_lock+0x13d/0x1700 [ 33.149907] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.149911] ? fill_pte+0xd6/0x420 [ 33.149915] ? arch_jump_label_transform+0x1b/0x40 [ 33.149919] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 33.149923] ? find_next_and_bit+0x165/0x1d0 [ 33.149927] ? mutex_trylock+0x2b0/0x2b0 [ 33.149931] ? find_held_lock+0x36/0x1c0 [ 33.149935] ? lock_downgrade+0x8f0/0x8f0 [ 33.149939] ? trace_hardirqs_on+0xbd/0x2c0 [ 33.149943] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 33.149947] ? text_poke_bp+0x14e/0x1de [ 33.149952] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 33.149966] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 33.149970] ? kvm_arch_vcpu_ioctl+0x1e74/0x3ac0 [ 33.149975] ? kasan_check_write+0x14/0x20 [ 33.149980] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 33.149984] ? wait_for_completion+0x8d0/0x8d0 [ 33.149988] ? kvm_arch_vcpu_ioctl+0x1e73/0x3ac0 [ 33.149993] ? __jump_label_transform.isra.0+0x478/0x8f0 [ 33.149996] ? modules_open+0xa0/0xa0 [ 33.150000] ? kvm_vm_release+0x42/0x50 [ 33.150004] ? get_trap_addr+0x1d0/0x1d0 [ 33.150008] ? do_group_exit+0x177/0x440 [ 33.150013] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.150017] ? jump_label_type+0x132/0x1d0 [ 33.150020] mutex_lock_nested+0x16/0x20 [ 33.150024] ? mutex_lock_nested+0x16/0x20 [ 33.150029] arch_jump_label_transform+0x1b/0x40 [ 33.150033] __jump_label_update+0x16e/0x1a0 [ 33.150037] jump_label_update+0x151/0x2e0 [ 33.150041] __static_key_slow_dec_cpuslocked+0xb8/0x210 [ 33.150045] ? static_key_disable+0x30/0x30 [ 33.150050] ? rcu_read_lock_sched_held+0x108/0x120 [ 33.150054] static_key_slow_dec+0x63/0xa0 [ 33.150058] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 33.150061] kvm_vcpu_uninit+0x [ 33.150068] Lost 102 message(s)! [ 34.175079] ---[ end trace b470adc3ec7eeca0 ]--- [ 34.179843] RIP: 0010:__schedule+0xf48/0x1df0 [ 34.184335] 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 dc 99 e8 fa eb 9f 4c 89 e6 48 89 df e8 af [ 34.203227] RSP: 0018:ffff8801b69ae660 EFLAGS: 00010806 [ 34.208585] RAX: 1bd5a00000000022 RBX: ffff8801d97d42c0 RCX: 1ffff10036d3088f [ 34.215885] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 34.223147] RBP: ffff8801b69ae830 R08: ffff8801d97d42c0 R09: fffff520003d1a47 [ 34.230408] R10: fffff520003d1a47 R11: ffffc90001e8d23b R12: ffff8801d98fc280 [ 34.237677] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc80 [ 34.244945] FS: 0000000000000000(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 34.253178] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 34.259056] CR2: 0000000020000216 CR3: 00000001b6c42000 CR4: 00000000001426e0 [ 34.266336] Kernel panic - not syncing: Fatal exception [ 35.373604] Shutting down cpus with NMI [ 35.377951] Dumping ftrace buffer: [ 35.381485] (ftrace buffer empty) [ 35.385174] Kernel Offset: disabled [ 35.388783] Rebooting in 86400 seconds..