[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.727664] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 20.860636] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.180411] random: sshd: uninitialized urandom read (32 bytes read) [ 21.783095] random: sshd: uninitialized urandom read (32 bytes read) [ 21.965847] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. [ 27.456433] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 27.560166] 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. [ 27.584933] kasan: CONFIG_KASAN_INLINE enabled [ 27.591991] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.599353] general protection fault: 0000 [#1] SMP KASAN [ 27.604891] CPU: 1 PID: 4287 Comm: syz-executor602 Not tainted 4.19.0-rc2+ #226 [ 27.612327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.621718] RIP: 0010:__schedule+0xf48/0x1df0 [ 27.626209] 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 6c 40 e6 fa eb 9f 4c 89 e6 48 89 df e8 1f [ 27.645107] RSP: 0018:ffff8801c6946f18 EFLAGS: 00010806 [ 27.650475] RAX: 1bd5a00000000022 RBX: ffff8801cb302640 RCX: 1ffff1003959088f [ 27.657743] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 27.665007] RBP: ffff8801c69470e8 R08: ffff8801cb302640 R09: fffff520003d0047 [ 27.672274] R10: fffff520003d0047 R11: ffffc90001e8023b R12: ffff8801d9ba05c0 [ 27.679550] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc80 [ 27.686823] FS: 0000000000c8f880(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 27.695055] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.700930] CR2: 000000000043efbe CR3: 000000000806a000 CR4: 00000000001426e0 [ 27.708192] Call Trace: [ 27.710783] ? mark_free_pages+0x3b0/0x3b0 [ 27.715036] ? kvm_vm_release+0x42/0x50 [ 27.719012] ? __sched_text_start+0x8/0x8 [ 27.723166] ? find_held_lock+0x36/0x1c0 [ 27.727240] ? check_same_owner+0x340/0x340 [ 27.731561] ? __free_pages+0x10a/0x190 [ 27.735543] preempt_schedule_common+0x22/0x60 [ 27.740124] _cond_resched+0x1d/0x30 [ 27.743876] cpus_read_lock+0x22/0xa0 [ 27.747675] static_key_slow_dec+0x57/0xa0 [ 27.751912] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 27.756419] kvm_vcpu_uninit+0x44/0x90 [ 27.760307] vmx_free_vcpu+0x23a/0x300 [ 27.764192] kvm_arch_destroy_vm+0x365/0x7c0 [ 27.768605] ? check_memory_region+0x193/0x1b0 [ 27.773184] ? kvm_arch_sync_events+0x30/0x30 [ 27.777684] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 27.783228] ? mmu_notifier_unregister+0x474/0x600 [ 27.788176] ? trace_hardirqs_on+0x2c0/0x2c0 [ 27.792592] ? kfree+0x111/0x210 [ 27.795968] ? __mmu_notifier_register+0x30/0x30 [ 27.800742] ? __free_pages+0x10a/0x190 [ 27.804730] ? free_unref_page+0x930/0x930 [ 27.808967] kvm_put_kvm+0x73f/0x1060 [ 27.812820] ? kvm_write_guest_cached+0x40/0x40 [ 27.817509] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.822038] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.826534] ? lockdep_hardirqs_on+0x421/0x5c0 [ 27.831119] ? kasan_check_write+0x14/0x20 [ 27.835357] ? do_raw_spin_lock+0xc1/0x200 [ 27.839592] ? kvm_irqfd_release+0xdd/0x120 [ 27.843917] ? kvm_irqfd_release+0xdd/0x120 [ 27.848247] ? kvm_put_kvm+0x1060/0x1060 [ 27.852308] kvm_vm_release+0x42/0x50 [ 27.856121] __fput+0x38a/0xa40 [ 27.859406] ? __alloc_file+0x400/0x400 [ 27.863386] ? check_same_owner+0x340/0x340 [ 27.867726] ? kasan_check_write+0x14/0x20 [ 27.871958] ? do_raw_spin_lock+0xc1/0x200 [ 27.876193] ____fput+0x15/0x20 [ 27.879486] task_work_run+0x1e8/0x2a0 [ 27.883373] ? task_work_cancel+0x240/0x240 [ 27.887705] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 27.893251] ? switch_task_namespaces+0xa2/0xd0 [ 27.897921] do_exit+0x1ae4/0x26e0 [ 27.901474] ? mm_update_next_owner+0x9a0/0x9a0 [ 27.906164] ? kvm_vcpu_ioctl+0x2b5/0x1280 [ 27.910399] ? rcu_read_lock_sched_held+0x108/0x120 [ 27.915418] ? kfree+0x1d7/0x210 [ 27.918786] ? kvm_vcpu_ioctl+0x2ba/0x1280 [ 27.923020] ? kvm_uevent_notify_change.part.32+0x440/0x440 [ 27.928736] ? is_bpf_text_address+0xd7/0x170 [ 27.933231] ? kernel_text_address+0x79/0xf0 [ 27.937655] ? __kernel_text_address+0xd/0x40 [ 27.942158] ? unwind_get_return_address+0x61/0xa0 [ 27.947098] ? __save_stack_trace+0x8d/0xf0 [ 27.951423] ? save_stack+0xa9/0xd0 [ 27.955056] ? save_stack+0x43/0xd0 [ 27.958676] ? __kasan_slab_free+0x11a/0x170 [ 27.963083] ? kasan_slab_free+0xe/0x10 [ 27.967051] ? putname+0xf2/0x130 [ 27.970505] ? __x64_sys_openat+0x9d/0x100 [ 27.974737] ? do_syscall_64+0x1b9/0x820 [ 27.978794] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 27.984167] ? trace_hardirqs_off+0xb8/0x2c0 [ 27.988572] ? kasan_check_read+0x11/0x20 [ 27.992730] ? do_raw_spin_unlock+0xa7/0x2f0 [ 27.997134] ? trace_hardirqs_on+0x2c0/0x2c0 [ 28.001572] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 28.006604] ? fget_raw+0x20/0x20 [ 28.010060] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 28.015172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.020715] ? do_vfs_ioctl+0x201/0x1720 [ 28.024770] ? rcu_is_watching+0x8c/0x150 [ 28.028926] ? trace_hardirqs_on+0xbd/0x2c0 [ 28.033245] ? ioctl_preallocate+0x300/0x300 [ 28.037650] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.043183] ? __fdget_pos+0xde/0x200 [ 28.046993] ? fget_raw+0x20/0x20 [ 28.050448] ? __fdget_raw+0x20/0x20 [ 28.054166] ? kmem_cache_free+0x246/0x280 [ 28.058406] do_group_exit+0x177/0x440 [ 28.062291] ? trace_hardirqs_on+0xbd/0x2c0 [ 28.066610] ? __ia32_sys_exit+0x50/0x50 [ 28.070678] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 28.075783] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.081332] ? ksys_ioctl+0x81/0xd0 [ 28.084960] __x64_sys_exit_group+0x3e/0x50 [ 28.089456] do_syscall_64+0x1b9/0x820 [ 28.093340] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 28.098710] ? syscall_return_slowpath+0x5e0/0x5e0 [ 28.103633] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.108470] ? trace_hardirqs_on_caller+0x2c0/0x2c0 [ 28.113482] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 28.118495] ? prepare_exit_to_usermode+0x291/0x3b0 [ 28.123514] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.128387] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.133573] RIP: 0033:0x43efe8 [ 28.136766] Code: Bad RIP value. [ 28.140122] RSP: 002b:00007ffe40527828 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 28.147840] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043efe8 [ 28.155626] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 28.162892] RBP: 00000000004be8a8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 28.170160] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000000001 [ 28.177426] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 28.184715] Modules linked in: [ 28.187934] Dumping ftrace buffer: [ 28.191466] (ftrace buffer empty) [ 28.195192] [ 28.195198] ====================================================== [ 28.195203] WARNING: possible circular locking dependency detected [ 28.195207] 4.19.0-rc2+ #226 Not tainted [ 28.195212] ------------------------------------------------------ [ 28.195217] syz-executor602/4287 is trying to acquire lock: [ 28.195221] 000000008cdbcffc ((console_sem).lock){-...}, at: down_trylock+0x13/0x70 [ 28.195236] [ 28.195240] but task is already holding lock: [ 28.195243] 000000004ac1e1b0 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 28.195257] [ 28.195262] which lock already depends on the new lock. [ 28.195264] [ 28.195267] [ 28.195272] the existing dependency chain (in reverse order) is: [ 28.195274] [ 28.195276] -> #2 (&rq->lock){-.-.}: [ 28.195291] _raw_spin_lock+0x2a/0x40 [ 28.195295] task_fork_fair+0x93/0x680 [ 28.195298] sched_fork+0x44b/0xbd0 [ 28.195302] copy_process+0x235e/0x7af0 [ 28.195306] _do_fork+0x1ca/0x1170 [ 28.195310] kernel_thread+0x34/0x40 [ 28.195313] rest_init+0x22/0xe4 [ 28.195317] start_kernel+0x913/0x94e [ 28.195322] x86_64_start_reservations+0x29/0x2b [ 28.195326] x86_64_start_kernel+0x76/0x79 [ 28.195330] secondary_startup_64+0xa4/0xb0 [ 28.195332] [ 28.195335] -> #1 (&p->pi_lock){-.-.}: [ 28.195349] _raw_spin_lock_irqsave+0x96/0xc0 [ 28.195353] try_to_wake_up+0xd2/0x1250 [ 28.195357] wake_up_process+0x10/0x20 [ 28.195361] __up.isra.1+0x1c0/0x2a0 [ 28.195364] up+0x13c/0x1c0 [ 28.195368] __up_console_sem+0xbe/0x1b0 [ 28.195372] console_unlock+0x506/0x10e0 [ 28.195376] vprintk_emit+0x33a/0x910 [ 28.195380] vprintk_default+0x28/0x30 [ 28.195384] vprintk_func+0x7a/0x117 [ 28.195387] printk+0xa7/0xcf [ 28.195391] do_exit.cold.22+0x120/0x21f [ 28.195395] do_group_exit+0x177/0x440 [ 28.195400] __x64_sys_exit_group+0x3e/0x50 [ 28.195403] do_syscall_64+0x1b9/0x820 [ 28.195408] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.195410] [ 28.195413] -> #0 ((console_sem).lock){-...}: [ 28.195427] lock_acquire+0x1e4/0x4f0 [ 28.195432] _raw_spin_lock_irqsave+0x96/0xc0 [ 28.195435] down_trylock+0x13/0x70 [ 28.195440] __down_trylock_console_sem+0xae/0x200 [ 28.195444] console_trylock+0x15/0xa0 [ 28.195448] vprintk_emit+0x31f/0x910 [ 28.195452] vprintk_default+0x28/0x30 [ 28.195455] vprintk_func+0x7a/0x117 [ 28.195459] printk+0xa7/0xcf [ 28.195463] kasan_die_handler.cold.22+0x11/0x30 [ 28.195468] notifier_call_chain+0x180/0x390 [ 28.195472] atomic_notifier_call_chain+0x98/0x190 [ 28.195476] notify_die+0x1be/0x2e0 [ 28.195480] do_general_protection+0x248/0x2f0 [ 28.195485] general_protection+0x1e/0x30 [ 28.195488] __schedule+0xf48/0x1df0 [ 28.195493] preempt_schedule_common+0x22/0x60 [ 28.195497] _cond_resched+0x1d/0x30 [ 28.195501] cpus_read_lock+0x22/0xa0 [ 28.195505] static_key_slow_dec+0x57/0xa0 [ 28.195509] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 28.195513] kvm_vcpu_uninit+0x44/0x90 [ 28.195517] vmx_free_vcpu+0x23a/0x300 [ 28.195521] kvm_arch_destroy_vm+0x365/0x7c0 [ 28.195525] kvm_put_kvm+0x73f/0x1060 [ 28.195529] kvm_vm_release+0x42/0x50 [ 28.195533] __fput+0x38a/0xa40 [ 28.195536] ____fput+0x15/0x20 [ 28.195540] task_work_run+0x1e8/0x2a0 [ 28.195544] do_exit+0x1ae4/0x26e0 [ 28.195548] do_group_exit+0x177/0x440 [ 28.195552] __x64_sys_exit_group+0x3e/0x50 [ 28.195556] do_syscall_64+0x1b9/0x820 [ 28.195560] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.195563] [ 28.195567] other info that might help us debug this: [ 28.195569] [ 28.195572] Chain exists of: [ 28.195575] (console_sem).lock --> &p->pi_lock --> &rq->lock [ 28.195593] [ 28.195597] Possible unsafe locking scenario: [ 28.195599] [ 28.195603] CPU0 CPU1 [ 28.195607] ---- ---- [ 28.195610] lock(&rq->lock); [ 28.195619] lock(&p->pi_lock); [ 28.195628] lock(&rq->lock); [ 28.195636] lock((console_sem).lock); [ 28.195644] [ 28.195648] *** DEADLOCK *** [ 28.195650] [ 28.195654] 2 locks held by syz-executor602/4287: [ 28.195656] #0: 000000004ac1e1b0 (&rq->lock){-.-.}, at: __schedule+0x24d/0x1df0 [ 28.195673] #1: 000000002c34de6a (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190 [ 28.195708] [ 28.195711] stack backtrace: [ 28.195717] CPU: 1 PID: 4287 Comm: syz-executor602 Not tainted 4.19.0-rc2+ #226 [ 28.195724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.195727] Call Trace: [ 28.195731] dump_stack+0x1c9/0x2b4 [ 28.195747] ? dump_stack_print_info.cold.2+0x52/0x52 [ 28.195750] ? vprintk_func+0x100/0x117 [ 28.195755] print_circular_bug.isra.34.cold.55+0x1bd/0x27d [ 28.195758] ? save_trace+0xe0/0x290 [ 28.195762] __lock_acquire+0x3449/0x5020 [ 28.195766] ? mark_held_locks+0x160/0x160 [ 28.195770] ? mark_held_locks+0x160/0x160 [ 28.195774] ? update_load_avg+0x389/0x27d0 [ 28.195778] ? trace_hardirqs_on+0x2c0/0x2c0 [ 28.195782] ? attach_entity_load_avg+0x860/0x860 [ 28.195786] ? update_load_avg+0x389/0x27d0 [ 28.195802] ? print_usage_bug+0xc0/0xc0 [ 28.195806] ? graph_lock+0x170/0x170 [ 28.195823] ? attach_entity_load_avg+0x860/0x860 [ 28.195827] ? graph_lock+0x170/0x170 [ 28.195831] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 28.195835] lock_acquire+0x1e4/0x4f0 [ 28.195850] ? down_trylock+0x13/0x70 [ 28.195854] ? lock_release+0x9f0/0x9f0 [ 28.195871] ? trace_hardirqs_off+0xb8/0x2c0 [ 28.195875] ? trace_hardirqs_on+0x2c0/0x2c0 [ 28.195879] ? trace_hardirqs_off+0xb8/0x2c0 [ 28.195882] ? log_store+0x34f/0x4c0 [ 28.195886] ? vprintk_emit+0x31f/0x910 [ 28.195890] _raw_spin_lock_irqsave+0x96/0xc0 [ 28.195894] ? down_trylock+0x13/0x70 [ 28.195897] down_trylock+0x13/0x70 [ 28.195902] __down_trylock_console_sem+0xae/0x200 [ 28.195905] console_trylock+0x15/0xa0 [ 28.195909] vprintk_emit+0x31f/0x910 [ 28.195913] ? wake_up_klogd+0x110/0x110 [ 28.195916] ? __lock_acquire+0x7fc/0x5020 [ 28.195920] ? mark_held_locks+0x160/0x160 [ 28.195924] vprintk_default+0x28/0x30 [ 28.195927] vprintk_func+0x7a/0x117 [ 28.195931] printk+0xa7/0xcf [ 28.195935] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 28.195939] ? kasan_die_handler.cold.22+0x5/0x30 [ 28.195943] ? kasan_die_handler+0x1a/0x31 [ 28.195947] kasan_die_handler.cold.22+0x11/0x30 [ 28.195951] notifier_call_chain+0x180/0x390 [ 28.195968] ? unregister_die_notifier+0x20/0x20 [ 28.195972] ? rcu_is_watching+0x8c/0x150 [ 28.195976] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 28.195992] ? rcu_is_watching+0x8c/0x150 [ 28.195996] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 28.196000] ? cmp_ex_search+0x8c/0xb0 [ 28.196005] atomic_notifier_call_chain+0x98/0x190 [ 28.196009] notify_die+0x1be/0x2e0 [ 28.196013] ? __atomic_notifier_call_chain+0x1a0/0x1a0 [ 28.196018] ? search_module_extables+0x18/0xc0 [ 28.196021] ? __schedule+0xf48/0x1df0 [ 28.196025] ? __schedule+0xf48/0x1df0 [ 28.196030] ? search_exception_tables+0x47/0x50 [ 28.196034] do_general_protection+0x248/0x2f0 [ 28.196038] general_protection+0x1e/0x30 [ 28.196042] RIP: 0010:__schedule+0xf48/0x1df0 [ 28.196055] 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 6c 40 e6 fa eb 9f 4c 89 e6 48 89 df e8 1f [ 28.196060] RSP: 0018:ffff8801c6946f18 EFLAGS: 00010806 [ 28.196068] RAX: 1bd5a00000000022 RBX: ffff8801cb302640 RCX: 1ffff1003959088f [ 28.196074] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 28.196080] RBP: ffff8801c69470e8 R08: ffff8801cb302640 R09: fffff520003d0047 [ 28.196086] R10: fffff520003d0047 R11: ffffc90001e8023b R12: ffff8801d9ba05c0 [ 28.196092] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc80 [ 28.196096] ? __schedule+0xf1e/0x1df0 [ 28.196100] ? mark_free_pages+0x3b0/0x3b0 [ 28.196104] ? kvm_vm_release+0x42/0x50 [ 28.196108] ? __sched_text_start+0x8/0x8 [ 28.196112] ? find_held_lock+0x36/0x1c0 [ 28.196116] ? check_same_owner+0x340/0x340 [ 28.196120] ? __free_pages+0x10a/0x190 [ 28.196124] preempt_schedule_common+0x22/0x60 [ 28.196128] _cond_resched+0x1d/0x30 [ 28.196132] cpus_read_lock+0x22/0xa0 [ 28.196136] static_key_slow_dec+0x57/0xa0 [ 28.196140] kvm_arch_vcpu_uninit+0x18e/0x1d0 [ 28.196152] kvm_vcpu_uninit+0x44/0x90 [ 28.196156] vmx_free_vcpu+0x23a/0x300 [ 28.196160] kvm_arch_destroy_vm+0x365/0x7c0 [ 28.196164] ? check_memory_region+0x193/0x1b0 [ 28.196169] ? kvm_arch_sync_events+0x30/0x30 [ 28.196174] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 28.196178] ? mmu_notifier_unregister+0x474/0x600 [ 28.196182] ? trace_hardirqs_on+0x2c0/0x2c0 [ 28.196186] ? kfree+0x111/0x210 [ 28.196190] ? __mmu_notifier_register+0x30/0x30 [ 28.196194] ? __free_pages+0x10a/0x190 [ 28.196198] ? free_unref_page+0x930/0x930 [ 28.196203] kvm_put_kvm+0x73f/0x1060 [ 28.196208] ? kvm_write_guest_cached+0x40/0x40 [ 28.196212] ? _raw_spin_unlock_irq+0x27/0x70 [ 28.196216] ? _raw_spin_unlock_irq+0x27/0x70 [ 28.196220] ? lockdep_hardirqs_on+0x421/0x5c0 [ 28.196224] ? kasan_check_write+0x14/0x20 [ 28.196228] ? do_raw_spin_lock+0xc1/0x200 [ 28.196233] ? kvm_irqfd_release+0xdd/0x120 [ 28.196237] ? kvm_irqfd_release+0xdd/0x120 [ 28.196241] ? kvm_put_kvm+0x1060/0x1060 [ 28.196245] kvm_vm_release+0x42/0x50 [ 28.196248] __fput+0x38a/0xa40 [ 28.196252] ? __alloc_file+0x400/0x400 [ 28.196256] ? check_same_owner+0x340/0x340 [ 28.196260] ? kasan_check_write+0x14/0x20 [ 28.196264] ? do_raw_spin_lock+0xc1/0x200 [ 28.196268] ____fput+0x15/0x20 [ 28.196272] task_work_run+0x1e8/0x2a0 [ 28.196276] ? task_work_cancel+0x240/0x240 [ 28.196281] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 28.196285] ? switch_task_namespaces+0xa2/0xd0 [ 28.196289] do_exit+0x1ae4/0x26e0 [ 28.196293] ? mm_update_next_owner+0x9a0/0x9a0 [ 28.196298] ? kvm_vcpu_ioctl+0x2b5/0x1280 [ 28.196302] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.196306] ? kfree+0x1d7/0x210 [ 28.196310] ? kvm_vcpu_ioctl+0x2ba/0x1280 [ 28.196315] ? kvm_uevent_notify_change.part.32+0x440/0x440 [ 28.196319] ? is_bpf_text_address+0xd7/0x170 [ 28.196323] ? kernel_text_address+0x79/0xf0 [ 28.196328] ? __kernel_text_address+0xd/0x40 [ 28.196332] ? unwind_get_return_address+0x61/0xa0 [ 28.196336] ? __save_stack_trace+0x8d/0xf0 [ 28.196340] ? save_stack+0xa9/0xd0 [ 28.196344] ? save_stack+0x43/0xd0 [ 28.196348] ? __kasan_slab_free+0x11a/0x170 [ 28.196352] ? kasan_slab_free+0xe/0x10 [ 28.196356] ? putname+0xf2/0x130 [ 28.196363] Lost 45 message(s)! [ 29.234428] ---[ end trace 83093865cfa0639d ]--- [ 29.239209] RIP: 0010:__schedule+0xf48/0x1df0 [ 29.243714] 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 6c 40 e6 fa eb 9f 4c 89 e6 48 89 df e8 1f [ 29.262614] RSP: 0018:ffff8801c6946f18 EFLAGS: 00010806 [ 29.267975] RAX: 1bd5a00000000022 RBX: ffff8801cb302640 RCX: 1ffff1003959088f [ 29.275242] RDX: 0000000040000000 RSI: 0000000000000000 RDI: dead000000000110 [ 29.282509] RBP: ffff8801c69470e8 R08: ffff8801cb302640 R09: fffff520003d0047 [ 29.289875] R10: fffff520003d0047 R11: ffffc90001e8023b R12: ffff8801d9ba05c0 [ 29.297141] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801db12cc80 [ 29.304419] FS: 0000000000c8f880(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 29.312641] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.318514] CR2: 000000000043efbe CR3: 000000000806a000 CR4: 00000000001426e0 [ 29.325782] Kernel panic - not syncing: Fatal exception [ 30.437632] Shutting down cpus with NMI [ 30.441968] Dumping ftrace buffer: [ 30.445496] (ftrace buffer empty) [ 30.449189] Kernel Offset: disabled [ 30.452800] Rebooting in 86400 seconds..