[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 23.634846] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 26.881740] random: sshd: uninitialized urandom read (32 bytes read) [ 27.186168] random: sshd: uninitialized urandom read (32 bytes read) [ 27.753194] random: sshd: uninitialized urandom read (32 bytes read) [ 27.933572] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. [ 33.643317] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 33.740347] 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. [ 33.763129] kasan: CONFIG_KASAN_INLINE enabled [ 33.770136] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.777563] general protection fault: 0000 [#1] SMP KASAN [ 33.783095] CPU: 0 PID: 4455 Comm: syz-executor184 Not tainted 4.18.0-next-20180824+ #47 [ 33.791311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.800663] RIP: 0010:__schedule+0xf48/0x1df0 [ 33.805165] 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 [ 33.824069] RSP: 0018:ffff8801ad2b6f58 EFLAGS: 00010806 [ 33.829447] RAX: 1bd5a00000000022 RBX: ffff8801ace1e300 RCX: 1ffff10035a7788f [ 33.836711] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 33.843980] RBP: ffff8801ad2b7128 R08: ffff8801ace1e300 R09: fffff520003c7a47 [ 33.851249] R10: fffff520003c7a47 R11: ffffc90001e3d23b R12: ffff8801d9eac140 [ 33.858531] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db02cc40 [ 33.865798] FS: 000000000218a880(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 33.874018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.879896] CR2: 000000000043efee CR3: 0000000007e6a000 CR4: 00000000001426f0 [ 33.887177] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.894439] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.901697] Call Trace: [ 33.904299] ? mark_free_pages+0x3b0/0x3b0 [ 33.908533] ? kvm_vm_release+0x42/0x50 [ 33.912511] ? __sched_text_start+0x8/0x8 [ 33.916657] ? find_held_lock+0x36/0x1c0 [ 33.920735] ? check_same_owner+0x340/0x340 [ 33.925065] ? __free_pages+0x10a/0x190 [ 33.929058] preempt_schedule_common+0x22/0x60 [ 33.933660] _cond_resched+0x1d/0x30 [ 33.937368] cpus_read_lock+0x22/0xa0 [ 33.941167] static_key_slow_dec+0x57/0xa0 [ 33.945402] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 33.949902] kvm_vcpu_uninit+0x44/0x90 [ 33.953806] vmx_free_vcpu+0x23a/0x300 [ 33.957735] kvm_arch_destroy_vm+0x365/0x7c0 [ 33.962141] ? kasan_check_write+0x3/0x20 [ 33.966299] ? kvm_arch_sync_events+0x30/0x30 [ 33.970794] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 33.976334] ? mmu_notifier_unregister+0x474/0x600 [ 33.981279] ? trace_hardirqs_on+0x2c0/0x2c0 [ 33.985684] ? kfree+0x111/0x210 [ 33.989048] ? __mmu_notifier_register+0x30/0x30 [ 33.993797] ? __free_pages+0x10a/0x190 [ 33.997765] ? free_unref_page+0x930/0x930 [ 34.002012] kvm_put_kvm+0x73f/0x1060 [ 34.005813] ? kvm_write_guest_cached+0x40/0x40 [ 34.010485] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.014977] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.019504] ? lockdep_hardirqs_on+0x421/0x5c0 [ 34.024091] ? kasan_check_write+0x14/0x20 [ 34.028331] ? do_raw_spin_lock+0xc1/0x200 [ 34.032565] ? kvm_irqfd_release+0xdd/0x120 [ 34.036878] ? kvm_irqfd_release+0xdd/0x120 [ 34.041196] ? kvm_put_kvm+0x1060/0x1060 [ 34.045263] kvm_vm_release+0x42/0x50 [ 34.049087] __fput+0x376/0x8a0 [ 34.052366] ? __alloc_file+0x400/0x400 [ 34.056339] ? check_same_owner+0x340/0x340 [ 34.060660] ? kasan_check_write+0x14/0x20 [ 34.064897] ? do_raw_spin_lock+0xc1/0x200 [ 34.069127] ____fput+0x15/0x20 [ 34.072403] task_work_run+0x1e8/0x2a0 [ 34.076290] ? task_work_cancel+0x240/0x240 [ 34.080628] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.086162] ? switch_task_namespaces+0xa2/0xd0 [ 34.090861] do_exit+0x1ae4/0x26e0 [ 34.094401] ? mm_update_next_owner+0x9a0/0x9a0 [ 34.099074] ? kvm_vcpu_ioctl+0x2b5/0x1280 [ 34.103309] ? rcu_read_lock_sched_held+0x108/0x120 [ 34.108322] ? kfree+0x1d7/0x210 [ 34.111690] ? kvm_vcpu_ioctl+0x2ba/0x1280 [ 34.115939] ? kvm_uevent_notify_change.part.32+0x440/0x440 [ 34.121652] ? is_bpf_text_address+0xd7/0x170 [ 34.126162] ? kernel_text_address+0x79/0xf0 [ 34.130573] ? __kernel_text_address+0xd/0x40 [ 34.135080] ? unwind_get_return_address+0x61/0xa0 [ 34.140008] ? __save_stack_trace+0x8d/0xf0 [ 34.144341] ? save_stack+0xa9/0xd0 [ 34.147965] ? save_stack+0x43/0xd0 [ 34.151588] ? __kasan_slab_free+0x11a/0x170 [ 34.156013] ? kasan_slab_free+0xe/0x10 [ 34.159989] ? putname+0xf2/0x130 [ 34.163444] ? __x64_sys_openat+0x9d/0x100 [ 34.167700] ? do_syscall_64+0x1b9/0x820 [ 34.171760] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.177121] ? trace_hardirqs_off+0xb8/0x2b0 [ 34.181534] ? kasan_check_read+0x11/0x20 [ 34.185678] ? do_raw_spin_unlock+0xa7/0x2f0 [ 34.190079] ? trace_hardirqs_on+0x2c0/0x2c0 [ 34.194484] ? __fget_light+0x2f7/0x440 [ 34.198454] ? fget_raw+0x20/0x20 [ 34.201903] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 34.207006] ? kvm_uevent_notify_change.part.32+0x440/0x440 [ 34.212713] ? do_vfs_ioctl+0x201/0x1720 [ 34.216767] ? rcu_is_watching+0x8c/0x150 [ 34.220906] ? trace_hardirqs_on+0xbd/0x2c0 [ 34.225225] ? ioctl_preallocate+0x300/0x300 [ 34.229658] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.235193] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 34.240753] ? sockfd_lookup_light+0xc5/0x160 [ 34.245251] ? __sys_setsockopt+0x257/0x3b0 [ 34.249574] ? putname+0xf7/0x130 [ 34.253042] do_group_exit+0x177/0x440 [ 34.256927] ? trace_hardirqs_on+0xbd/0x2c0 [ 34.261239] ? __ia32_sys_exit+0x50/0x50 [ 34.265309] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 34.270410] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.275946] __x64_sys_exit_group+0x3e/0x50 [ 34.280287] do_syscall_64+0x1b9/0x820 [ 34.284174] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.289543] ? syscall_return_slowpath+0x5e0/0x5e0 [ 34.294468] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.299308] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 34.304336] ? prepare_exit_to_usermode+0x291/0x3b0 [ 34.309355] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.314194] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.319380] RIP: 0033:0x43f018 [ 34.322573] Code: Bad RIP value. [ 34.325927] RSP: 002b:00007ffde264a338 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 34.333638] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043f018 [ 34.340917] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 34.348194] RBP: 00000000004be8c8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 34.355453] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 34.362714] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 34.369977] Modules linked in: [ 34.373165] Dumping ftrace buffer: [ 34.376706] (ftrace buffer empty) [ 34.380411] [ 34.380417] ====================================================== [ 34.380422] WARNING: possible circular locking dependency detected [ 34.380427] 4.18.0-next-20180824+ #47 Not tainted [ 34.380432] ------------------------------------------------------ [ 34.380437] syz-executor184/4455 is trying to acquire lock: [ 34.380440] 00000000115d40a0 ((console_sem).lock){-...}, at: down_trylock+0x13/0x70 [ 34.380455] [ 34.380459] but task is already holding lock: [ 34.380463] 00000000861979e5 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 34.380477] [ 34.380482] which lock already depends on the new lock. [ 34.380484] [ 34.380487] [ 34.380492] the existing dependency chain (in reverse order) is: [ 34.380494] [ 34.380496] -> #2 (&rq->lock){-.-.}: [ 34.380511] _raw_spin_lock+0x2a/0x40 [ 34.380515] task_fork_fair+0x93/0x680 [ 34.380518] sched_fork+0x44b/0xbd0 [ 34.380522] copy_process+0x235e/0x7af0 [ 34.380526] _do_fork+0x1ca/0x1170 [ 34.380530] kernel_thread+0x34/0x40 [ 34.380534] rest_init+0x22/0xe4 [ 34.380538] start_kernel+0x913/0x94e [ 34.380557] x86_64_start_reservations+0x29/0x2b [ 34.380561] x86_64_start_kernel+0x76/0x79 [ 34.380581] secondary_startup_64+0xa4/0xb0 [ 34.380583] [ 34.380585] -> #1 (&p->pi_lock){-.-.}: [ 34.380599] _raw_spin_lock_irqsave+0x96/0xc0 [ 34.380602] try_to_wake_up+0xd2/0x1250 [ 34.380606] wake_up_process+0x10/0x20 [ 34.380610] __up.isra.1+0x1c0/0x2a0 [ 34.380613] up+0x13c/0x1c0 [ 34.380617] __up_console_sem+0xbe/0x1b0 [ 34.380620] console_unlock+0x506/0x10d0 [ 34.380624] vprintk_emit+0x33a/0x910 [ 34.380628] vprintk_default+0x28/0x30 [ 34.380631] vprintk_func+0x7a/0x117 [ 34.380635] printk+0xa7/0xcf [ 34.380638] load_umh+0x51/0xbd [ 34.380642] do_one_initcall+0x127/0x838 [ 34.380646] kernel_init_freeable+0x4bb/0x5ae [ 34.380649] kernel_init+0x11/0x1b3 [ 34.380653] ret_from_fork+0x3a/0x50 [ 34.380655] [ 34.380657] -> #0 ((console_sem).lock){-...}: [ 34.380671] lock_acquire+0x1e4/0x4f0 [ 34.380675] _raw_spin_lock_irqsave+0x96/0xc0 [ 34.380679] down_trylock+0x13/0x70 [ 34.380683] __down_trylock_console_sem+0xae/0x200 [ 34.380687] console_trylock+0x15/0xa0 [ 34.380691] vprintk_emit+0x31f/0x910 [ 34.380694] vprintk_default+0x28/0x30 [ 34.380698] vprintk_func+0x7a/0x117 [ 34.380701] printk+0xa7/0xcf [ 34.380706] kasan_die_handler.cold.22+0x11/0x30 [ 34.380710] notifier_call_chain+0x180/0x390 [ 34.380717] atomic_notifier_call_chain+0x98/0x190 [ 34.380721] notify_die+0x1be/0x2e0 [ 34.380725] do_general_protection+0x248/0x2f0 [ 34.380729] general_protection+0x1e/0x30 [ 34.380733] __schedule+0xf48/0x1df0 [ 34.380737] preempt_schedule_common+0x22/0x60 [ 34.380740] _cond_resched+0x1d/0x30 [ 34.380744] cpus_read_lock+0x22/0xa0 [ 34.380748] static_key_slow_dec+0x57/0xa0 [ 34.380752] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 34.380756] kvm_vcpu_uninit+0x44/0x90 [ 34.380760] vmx_free_vcpu+0x23a/0x300 [ 34.380764] kvm_arch_destroy_vm+0x365/0x7c0 [ 34.380767] kvm_put_kvm+0x73f/0x1060 [ 34.380772] kvm_vm_release+0x42/0x50 [ 34.380775] __fput+0x376/0x8a0 [ 34.380779] ____fput+0x15/0x20 [ 34.380782] task_work_run+0x1e8/0x2a0 [ 34.380786] do_exit+0x1ae4/0x26e0 [ 34.380790] do_group_exit+0x177/0x440 [ 34.380794] __x64_sys_exit_group+0x3e/0x50 [ 34.380797] do_syscall_64+0x1b9/0x820 [ 34.380802] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.380804] [ 34.380808] other info that might help us debug this: [ 34.380810] [ 34.380813] Chain exists of: [ 34.380815] (console_sem).lock --> &p->pi_lock --> &rq->lock [ 34.380832] [ 34.380836] Possible unsafe locking scenario: [ 34.380838] [ 34.380842] CPU0 CPU1 [ 34.380846] ---- ---- [ 34.380848] lock(&rq->lock); [ 34.380857] lock(&p->pi_lock); [ 34.380866] lock(&rq->lock); [ 34.380873] lock((console_sem).lock); [ 34.380881] [ 34.380884] *** DEADLOCK *** [ 34.380886] [ 34.380890] 2 locks held by syz-executor184/4455: [ 34.380892] #0: 00000000861979e5 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 34.380923] #1: 00000000547773ff (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190 [ 34.380941] [ 34.380944] stack backtrace: [ 34.380950] CPU: 0 PID: 4455 Comm: syz-executor184 Not tainted 4.18.0-next-20180824+ #47 [ 34.380957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.380960] Call Trace: [ 34.380964] dump_stack+0x1c9/0x2b4 [ 34.380969] ? dump_stack_print_info.cold.2+0x52/0x52 [ 34.380972] ? vprintk_func+0x100/0x117 [ 34.380977] print_circular_bug.isra.34.cold.55+0x1bd/0x27d [ 34.380981] ? save_trace+0xe0/0x290 [ 34.380985] __lock_acquire+0x3449/0x5020 [ 34.380989] ? mark_held_locks+0x160/0x160 [ 34.380993] ? mark_held_locks+0x160/0x160 [ 34.380997] ? update_load_avg+0x389/0x27d0 [ 34.381001] ? trace_hardirqs_on+0x2c0/0x2c0 [ 34.381005] ? attach_entity_load_avg+0x860/0x860 [ 34.381010] ? update_load_avg+0x389/0x27d0 [ 34.381013] ? print_usage_bug+0xc0/0xc0 [ 34.381017] ? graph_lock+0x170/0x170 [ 34.381022] ? attach_entity_load_avg+0x860/0x860 [ 34.381025] ? graph_lock+0x170/0x170 [ 34.381030] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.381034] lock_acquire+0x1e4/0x4f0 [ 34.381037] ? down_trylock+0x13/0x70 [ 34.381041] ? lock_release+0x9f0/0x9f0 [ 34.381045] ? trace_hardirqs_off+0xb8/0x2b0 [ 34.381049] ? trace_hardirqs_on+0x2c0/0x2c0 [ 34.381054] ? trace_hardirqs_off+0xb8/0x2b0 [ 34.381057] ? log_store+0x34f/0x4c0 [ 34.381061] ? vprintk_emit+0x31f/0x910 [ 34.381065] _raw_spin_lock_irqsave+0x96/0xc0 [ 34.381069] ? down_trylock+0x13/0x70 [ 34.381073] down_trylock+0x13/0x70 [ 34.381077] __down_trylock_console_sem+0xae/0x200 [ 34.381081] console_trylock+0x15/0xa0 [ 34.381085] vprintk_emit+0x31f/0x910 [ 34.381089] ? wake_up_klogd+0x110/0x110 [ 34.381093] ? __lock_acquire+0x7fc/0x5020 [ 34.381097] ? mark_held_locks+0x160/0x160 [ 34.381101] vprintk_default+0x28/0x30 [ 34.381104] vprintk_func+0x7a/0x117 [ 34.381108] printk+0xa7/0xcf [ 34.381112] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 34.381117] ? kasan_die_handler.cold.22+0x5/0x30 [ 34.381121] ? kasan_die_handler+0x1a/0x31 [ 34.381125] kasan_die_handler.cold.22+0x11/0x30 [ 34.381145] notifier_call_chain+0x180/0x390 [ 34.381149] ? unregister_die_notifier+0x20/0x20 [ 34.381153] ? rcu_is_watching+0x8c/0x150 [ 34.381157] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 34.381160] ? rcu_is_watching+0x8c/0x150 [ 34.381165] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 34.381168] ? cmp_ex_search+0x8c/0xb0 [ 34.381172] atomic_notifier_call_chain+0x98/0x190 [ 34.381176] notify_die+0x1be/0x2e0 [ 34.381180] ? __atomic_notifier_call_chain+0x1a0/0x1a0 [ 34.381185] ? search_module_extables+0x18/0xc0 [ 34.381188] ? __schedule+0xf48/0x1df0 [ 34.381192] ? __schedule+0xf48/0x1df0 [ 34.381196] ? search_exception_tables+0x47/0x50 [ 34.381200] do_general_protection+0x248/0x2f0 [ 34.381204] general_protection+0x1e/0x30 [ 34.381208] RIP: 0010:__schedule+0xf48/0x1df0 [ 34.381220] 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 [ 34.381225] RSP: 0018:ffff8801ad2b6f58 EFLAGS: 00010806 [ 34.381233] RAX: 1bd5a00000000022 RBX: ffff8801ace1e300 RCX: 1ffff10035a7788f [ 34.381238] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 34.381251] RBP: ffff8801ad2b7128 R08: ffff8801ace1e300 R09: fffff520003c7a47 [ 34.381257] R10: fffff520003c7a47 R11: ffffc90001e3d23b R12: ffff8801d9eac140 [ 34.381262] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db02cc40 [ 34.381270] ? __schedule+0xf1e/0x1df0 [ 34.381274] ? mark_free_pages+0x3b0/0x3b0 [ 34.381278] ? kvm_vm_release+0x42/0x50 [ 34.381282] ? __sched_text_start+0x8/0x8 [ 34.381286] ? find_held_lock+0x36/0x1c0 [ 34.381290] ? check_same_owner+0x340/0x340 [ 34.381293] ? __free_pages+0x10a/0x190 [ 34.381297] preempt_schedule_common+0x22/0x60 [ 34.381301] _cond_resched+0x1d/0x30 [ 34.381304] cpus_read_lock+0x22/0xa0 [ 34.381308] static_key_slow_dec+0x57/0xa0 [ 34.381312] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 34.381316] kvm_vcpu_uninit+0x44/0x90 [ 34.381320] vmx_free_vcpu+0x23a/0x300 [ 34.381324] kvm_arch_destroy_vm+0x365/0x7c0 [ 34.381327] ? kasan_check_write+0x3/0x20 [ 34.381331] ? kvm_arch_sync_events+0x30/0x30 [ 34.381336] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.381341] ? mmu_notifier_unregister+0x474/0x600 [ 34.381344] ? trace_hardirqs_on+0x2c0/0x2c0 [ 34.381348] ? kfree+0x111/0x210 [ 34.381352] ? __mmu_notifier_register+0x30/0x30 [ 34.381356] ? __free_pages+0x10a/0x190 [ 34.381360] ? free_unref_page+0x930/0x930 [ 34.381363] kvm_put_kvm+0x73f/0x1060 [ 34.381367] ? kvm_write_guest_cached+0x40/0x40 [ 34.381371] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.381375] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.381379] ? lockdep_hardirqs_on+0x421/0x5c0 [ 34.381383] ? kasan_check_write+0x14/0x20 [ 34.381387] ? do_raw_spin_lock+0xc1/0x200 [ 34.381391] ? kvm_irqfd_release+0xdd/0x120 [ 34.381395] ? kvm_irqfd_release+0xdd/0x120 [ 34.381399] ? kvm_put_kvm+0x1060/0x1060 [ 34.381402] kvm_vm_release+0x42/0x50 [ 34.381406] __fput+0x376/0x8a0 [ 34.381409] ? __alloc_file+0x400/0x400 [ 34.381413] ? check_same_owner+0x340/0x340 [ 34.381417] ? kasan_check_write+0x14/0x20 [ 34.381421] ? do_raw_spin_lock+0xc1/0x200 [ 34.381425] ____fput+0x15/0x20 [ 34.381428] task_work_run+0x1e8/0x2a0 [ 34.381432] ? task_work_cancel+0x240/0x240 [ 34.381437] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.381456] ? switch_task_namespaces+0xa2/0xd0 [ 34.381460] do_exit+0x1ae4/0x26e0 [ 34.381464] ? mm_update_next_owner+0x9a0/0x9a0 [ 34.381484] ? kvm_vcpu_ioctl+0x2b5/0x1280 [ 34.381489] ? rcu_read_lock_sched_held+0x108/0x120 [ 34.381492] ? kfree+0x1d7/0x210 [ 34.381496] ? kvm_vcpu_ioctl+0x2ba/0x1280 [ 34.381502] ? kvm_uevent_notify_change.part.32+0x440/0x440 [ 34.381506] ? is_bpf_text_address+0xd7/0x170 [ 34.381510] ? kernel_text_address+0x79/0xf0 [ 34.381514] ? __kernel_text_address+0xd/0x40 [ 34.381519] ? unwind_get_return_address+0x61/0xa0 [ 34.381523] ? __save_stack_trace+0x8d/0xf0 [ 34.381527] ? save_stack+0xa9/0xd0 [ 34.381531] ? save_stack+0x43/0xd0 [ 34.381535] ? __kasan_slab_free+0x11a/0x170 [ 34.381539] ? kasan_slab_free+0xe/0x10 [ 34.381542] ? putname+0xf2/0x130 [ 34.381545] ? __x64_ [ 34.381553] Lost 42 message(s)! [ 35.420381] ---[ end trace 744a85f8516fdda4 ]--- [ 35.425159] RIP: 0010:__schedule+0xf48/0x1df0 [ 35.429674] 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 [ 35.448567] RSP: 0018:ffff8801ad2b6f58 EFLAGS: 00010806 [ 35.453938] RAX: 1bd5a00000000022 RBX: ffff8801ace1e300 RCX: 1ffff10035a7788f [ 35.461201] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 35.468464] RBP: ffff8801ad2b7128 R08: ffff8801ace1e300 R09: fffff520003c7a47 [ 35.475726] R10: fffff520003c7a47 R11: ffffc90001e3d23b R12: ffff8801d9eac140 [ 35.482986] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db02cc40 [ 35.490280] FS: 000000000218a880(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 35.498509] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.504867] CR2: 000000000043efee CR3: 0000000007e6a000 CR4: 00000000001426f0 [ 35.512132] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.519393] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.526657] Kernel panic - not syncing: Fatal exception [ 36.654330] Shutting down cpus with NMI [ 36.658701] Dumping ftrace buffer: [ 36.662224] (ftrace buffer empty) [ 36.665935] Kernel Offset: disabled [ 36.669542] Rebooting in 86400 seconds..