[....] Starting enhanced syslogd: rsyslogd[ 10.565793] audit: type=1400 audit(1513785327.621:5): avc: denied { syslog } for pid=2995 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.370633] audit: type=1400 audit(1513785333.426:6): avc: denied { map } for pid=3136 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added 'ci-upstream-next-kasan-gce-3,10.128.15.201' (ECDSA) to the list of known hosts. executing program [ 25.817748] audit: type=1400 audit(1513785342.873:7): avc: denied { map } for pid=3151 comm="syzkaller527934" path="/root/syzkaller527934430" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 25.852543] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 25.861575] kasan: CONFIG_KASAN_INLINE enabled [ 25.866894] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.874224] general protection fault: 0000 [#1] SMP KASAN [ 25.879727] Dumping ftrace buffer: [ 25.883232] (ftrace buffer empty) [ 25.886908] Modules linked in: [ 25.890071] CPU: 1 PID: 3151 Comm: syzkaller527934 Not tainted 4.15.0-rc4-next-20171220+ #77 [ 25.898618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.907945] RIP: 0010:__schedule+0xdf0/0x2060 [ 25.912404] RSP: 0018:ffff8801c93a7068 EFLAGS: 00010806 [ 25.917733] RAX: 1bd5a00000000022 RBX: ffff8801db32c900 RCX: ffffffff810caeaf [ 25.924969] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dead000000000110 [ 25.932206] RBP: ffff8801c93a7238 R08: 0000000000000000 R09: 1ffff10039274de1 [ 25.939442] R10: ffff8801c93a6ed0 R11: 0000000000000001 R12: ffff8801d3948040 [ 25.946687] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801c9ca20c0 [ 25.953925] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 25.962116] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.967965] CR2: 0000000020001000 CR3: 0000000006422006 CR4: 00000000001626e0 [ 25.975204] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.982442] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.989680] Call Trace: [ 25.992244] ? __sched_text_start+0x8/0x8 [ 25.996361] ? trace_hardirqs_on+0xd/0x10 [ 26.000478] ? __call_srcu+0x7ee/0x1020 [ 26.004418] ? do_raw_spin_trylock+0x190/0x190 [ 26.008967] ? do_raw_spin_trylock+0x190/0x190 [ 26.013541] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.019392] ? __debug_object_init+0x235/0x1040 [ 26.024038] preempt_schedule_common+0x22/0x60 [ 26.028590] _cond_resched+0x1d/0x30 [ 26.032277] wait_for_completion+0xa5/0x770 [ 26.036567] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.041554] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 26.047322] ? __lockdep_init_map+0xe4/0x650 [ 26.051703] ? __init_waitqueue_head+0x97/0x140 [ 26.056340] ? init_wait_entry+0x1b0/0x1b0 [ 26.060549] __synchronize_srcu+0x1ad/0x260 [ 26.064838] ? call_srcu+0x10/0x10 [ 26.068347] ? trace_raw_output_rcu_utilization+0xb0/0xb0 [ 26.073857] ? irq_matrix_allocated+0x80/0x80 [ 26.078321] ? synchronize_srcu+0x3c5/0x570 [ 26.082612] synchronize_srcu+0x1a3/0x570 [ 26.086727] ? synchronize_srcu+0x1a3/0x570 [ 26.091016] ? __mmu_notifier_release+0x305/0x690 [ 26.095828] ? synchronize_srcu_expedited+0x20/0x20 [ 26.100812] ? lock_release+0xa40/0xa40 [ 26.104752] ? lock_release+0xa40/0xa40 [ 26.108697] ? do_raw_spin_trylock+0x190/0x190 [ 26.113259] __mmu_notifier_release+0x357/0x690 [ 26.117905] ? __mmu_notifier_invalidate_range_end+0x360/0x360 [ 26.123855] ? __khugepaged_exit+0x3f7/0x640 [ 26.128233] ? is_bpf_text_address+0xa4/0x120 [ 26.132703] ? lock_release+0xa40/0xa40 [ 26.136644] ? rcu_pm_notify+0xc0/0xc0 [ 26.140508] ? __khugepaged_exit+0x40f/0x640 [ 26.144891] exit_mmap+0x3ff/0x500 [ 26.148401] ? SyS_munmap+0x30/0x30 [ 26.151995] ? __khugepaged_exit+0x42f/0x640 [ 26.156391] ? hugepage_madvise+0xf0/0xf0 [ 26.160510] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.166364] ? rcu_note_context_switch+0x710/0x710 [ 26.171262] ? __might_sleep+0x95/0x190 [ 26.175207] mmput+0x223/0x6c0 [ 26.178369] ? get_task_exe_file+0xc0/0xc0 [ 26.182585] ? is_current_pgrp_orphaned+0xa0/0xa0 [ 26.187403] ? do_exit+0x8fa/0x1ad0 [ 26.191020] ? lock_downgrade+0x980/0x980 [ 26.195145] ? mark_held_locks+0xaf/0x100 [ 26.199263] ? do_raw_spin_trylock+0x190/0x190 [ 26.203819] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.208815] ? trace_hardirqs_on+0xd/0x10 [ 26.212936] do_exit+0x90a/0x1ad0 [ 26.216364] ? kvm_vcpu_fault+0x520/0x520 [ 26.220485] ? mm_update_next_owner+0x930/0x930 [ 26.225123] ? find_held_lock+0x35/0x1d0 [ 26.229159] ? handle_mm_fault+0x2a0/0x930 [ 26.233379] ? find_held_lock+0x35/0x1d0 [ 26.237420] ? __do_page_fault+0x5f7/0xc90 [ 26.241622] ? lock_downgrade+0x980/0x980 [ 26.245746] ? down_read_trylock+0xdb/0x170 [ 26.250040] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 26.254587] ? vmacache_find+0x5f/0x280 [ 26.258532] ? up_read+0x1a/0x40 [ 26.262717] ? __do_page_fault+0x3d6/0xc90 [ 26.266927] ? kvm_vcpu_fault+0x520/0x520 [ 26.271041] ? do_vfs_ioctl+0x486/0x1520 [ 26.275071] ? _cond_resched+0x14/0x30 [ 26.278928] ? ioctl_preallocate+0x2b0/0x2b0 [ 26.283318] ? selinux_capable+0x40/0x40 [ 26.287347] ? putname+0xf3/0x130 [ 26.290775] do_group_exit+0x149/0x400 [ 26.294635] ? SyS_exit+0x30/0x30 [ 26.298059] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.303044] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.307775] SyS_exit_group+0x1d/0x20 [ 26.311543] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.316266] RIP: 0033:0x43ee88 [ 26.319425] RSP: 002b:00007ffc8be9bb08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 26.327099] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ee88 [ 26.334346] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 26.341585] RBP: 00000000006ca018 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 26.348825] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401bb0 [ 26.356063] R13: 0000000000401c40 R14: 0000000000000000 R15: 0000000000000000 [ 26.363311] Code: 08 4c 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 ce 0f 00 00 4d 8b 6d 00 4d 85 ed 0f 84 72 f9 ff ff 49 8d 7d 10 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 ac eb a5 49 8d bc 24 28 04 00 00 48 b8 00 00 [ 26.382421] RIP: __schedule+0xdf0/0x2060 RSP: ffff8801c93a7068 [ 26.388366] [ 26.388368] ====================================================== [ 26.388370] WARNING: possible circular locking dependency detected [ 26.388372] 4.15.0-rc4-next-20171220+ #77 Not tainted [ 26.388374] ------------------------------------------------------ [ 26.388377] syzkaller527934/3151 is trying to acquire lock: [ 26.388377] ((console_sem).lock){..-.}, at: [<00000000e19404b5>] down_trylock+0x13/0x70 [ 26.388383] [ 26.388384] but task is already holding lock: [ 26.388385] (&rq->lock){-.-.}, at: [<000000001c39040b>] __schedule+0x24e/0x2060 [ 26.388390] [ 26.388392] which lock already depends on the new lock. [ 26.388393] [ 26.388394] [ 26.388396] the existing dependency chain (in reverse order) is: [ 26.388397] [ 26.388398] -> #2 (&rq->lock){-.-.}: [ 26.388403] _raw_spin_lock+0x2a/0x40 [ 26.388405] task_fork_fair+0x7a/0x690 [ 26.388406] sched_fork+0x435/0xc00 [ 26.388408] copy_process.part.37+0x1758/0x4b60 [ 26.388410] _do_fork+0x1f7/0xf70 [ 26.388411] kernel_thread+0x34/0x40 [ 26.388413] rest_init+0x22/0xf0 [ 26.388414] start_kernel+0x7f1/0x819 [ 26.388416] x86_64_start_reservations+0x2a/0x2c [ 26.388418] x86_64_start_kernel+0x77/0x7a [ 26.388420] secondary_startup_64+0xa5/0xb0 [ 26.388421] [ 26.388422] -> #1 (&p->pi_lock){-.-.}: [ 26.388427] _raw_spin_lock_irqsave+0x96/0xc0 [ 26.388429] try_to_wake_up+0xbc/0x1600 [ 26.388430] wake_up_process+0x10/0x20 [ 26.388432] __up.isra.0+0x1cc/0x2c0 [ 26.388433] up+0x13b/0x1d0 [ 26.388435] __up_console_sem+0xb2/0x1a0 [ 26.388437] console_unlock+0x538/0xd70 [ 26.388438] do_con_write+0x106e/0x1f70 [ 26.388440] con_write+0x25/0xb0 [ 26.388441] n_tty_write+0x5ef/0xec0 [ 26.388443] tty_write+0x3fa/0x840 [ 26.388445] __vfs_write+0xef/0x970 [ 26.388446] vfs_write+0x189/0x510 [ 26.388448] SyS_write+0xef/0x220 [ 26.388449] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.388450] [ 26.388451] -> #0 ((console_sem).lock){..-.}: [ 26.388457] lock_acquire+0x1d5/0x580 [ 26.388459] _raw_spin_lock_irqsave+0x96/0xc0 [ 26.388460] down_trylock+0x13/0x70 [ 26.388462] __down_trylock_console_sem+0xa2/0x1e0 [ 26.388464] console_trylock+0x15/0x100 [ 26.388465] vprintk_emit+0x49b/0x590 [ 26.388467] vprintk_default+0x28/0x30 [ 26.388468] vprintk_func+0x57/0xc0 [ 26.388470] printk+0xaa/0xca [ 26.388472] kasan_die_handler+0x31/0x3f [ 26.388473] notifier_call_chain+0x136/0x2c0 [ 26.388475] atomic_notifier_call_chain+0x77/0x140 [ 26.388477] notify_die+0x18c/0x280 [ 26.388479] do_general_protection+0x331/0x3e0 [ 26.388480] general_protection+0x2c/0x60 [ 26.388482] __schedule+0xdf0/0x2060 [ 26.388484] preempt_schedule_common+0x22/0x60 [ 26.388485] _cond_resched+0x1d/0x30 [ 26.388487] wait_for_completion+0xa5/0x770 [ 26.388489] __synchronize_srcu+0x1ad/0x260 [ 26.388491] synchronize_srcu+0x1a3/0x570 [ 26.388492] __mmu_notifier_release+0x357/0x690 [ 26.388494] exit_mmap+0x3ff/0x500 [ 26.388495] mmput+0x223/0x6c0 [ 26.388497] do_exit+0x90a/0x1ad0 [ 26.388499] do_group_exit+0x149/0x400 [ 26.388500] SyS_exit_group+0x1d/0x20 [ 26.388502] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.388503] [ 26.388505] other info that might help us debug this: [ 26.388506] [ 26.388507] Chain exists of: [ 26.388508] (console_sem).lock --> &p->pi_lock --> &rq->lock [ 26.388514] [ 26.388516] Possible unsafe locking scenario: [ 26.388517] [ 26.388519] CPU0 CPU1 [ 26.388520] ---- ---- [ 26.388521] lock(&rq->lock); [ 26.388525] lock(&p->pi_lock); [ 26.388529] lock(&rq->lock); [ 26.388531] lock((console_sem).lock); [ 26.388534] [ 26.388536] *** DEADLOCK *** [ 26.388537] [ 26.388538] 2 locks held by syzkaller527934/3151: [ 26.388539] #0: (&rq->lock){-.-.}, at: [<000000001c39040b>] __schedule+0x24e/0x2060 [ 26.388545] #1: (rcu_read_lock){....}, at: [<00000000a6163887>] atomic_notifier_call_chain+0x0/0x140 [ 26.388551] [ 26.388552] stack backtrace: [ 26.388555] CPU: 1 PID: 3151 Comm: syzkaller527934 Not tainted 4.15.0-rc4-next-20171220+ #77 [ 26.388558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.388560] Call Trace: [ 26.388561] dump_stack+0x194/0x257 [ 26.388563] ? arch_local_irq_restore+0x53/0x53 [ 26.388565] print_circular_bug.isra.37+0x2cd/0x2dc [ 26.388566] ? save_trace+0xe0/0x2b0 [ 26.388568] __lock_acquire+0x30a8/0x3e00 [ 26.388570] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 26.388572] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 26.388574] ? check_preempt_wakeup+0x52c/0xb20 [ 26.388576] ? __update_load_avg_se.isra.27+0x56a/0x7c0 [ 26.388577] ? __update_load_avg_se.isra.27+0x56a/0x7c0 [ 26.388579] ? print_irqtrace_events+0x270/0x270 [ 26.388581] ? find_held_lock+0x35/0x1d0 [ 26.388583] ? update_cfs_rq_load_avg.part.68+0x2d0/0x2d0 [ 26.388585] ? try_to_wake_up+0xf9/0x1600 [ 26.388586] ? lock_downgrade+0x980/0x980 [ 26.388588] ? lock_downgrade+0x980/0x980 [ 26.388589] ? __lock_acquire+0x664/0x3e00 [ 26.388591] lock_acquire+0x1d5/0x580 [ 26.388593] ? lock_acquire+0x1d5/0x580 [ 26.388594] ? down_trylock+0x13/0x70 [ 26.388596] ? find_held_lock+0x35/0x1d0 [ 26.388597] ? lock_release+0xa40/0xa40 [ 26.388599] ? vprintk_emit+0x379/0x590 [ 26.388600] ? lock_downgrade+0x980/0x980 [ 26.388602] ? kvm_sched_clock_read+0x25/0x40 [ 26.388604] ? sched_clock+0x31/0x40 [ 26.388606] ? sched_clock_cpu+0x1b/0x170 [ 26.388607] ? vprintk_emit+0x49b/0x590 [ 26.388609] _raw_spin_lock_irqsave+0x96/0xc0 [ 26.388611] ? down_trylock+0x13/0x70 [ 26.388612] down_trylock+0x13/0x70 [ 26.388614] ? vprintk_emit+0x49b/0x590 [ 26.388616] __down_trylock_console_sem+0xa2/0x1e0 [ 26.388617] console_trylock+0x15/0x100 [ 26.388619] vprintk_emit+0x49b/0x590 [ 26.388620] vprintk_default+0x28/0x30 [ 26.388622] vprintk_func+0x57/0xc0 [ 26.388623] printk+0xaa/0xca [ 26.388625] ? show_regs_print_info+0x18/0x18 [ 26.388627] ? lock_release+0xa40/0xa40 [ 26.388628] ? kasan_die_handler+0x25/0x3f [ 26.388630] kasan_die_handler+0x31/0x3f [ 26.388632] notifier_call_chain+0x136/0x2c0 [ 26.388634] ? raw_notifier_chain_unregister+0x1b0/0x1b0 [ 26.388635] ? pick_next_task_fair+0xc14/0x16b0 [ 26.388637] ? rcutorture_record_progress+0x10/0x10 [ 26.388639] atomic_notifier_call_chain+0x77/0x140 [ 26.388641] notify_die+0x18c/0x280 [ 26.388642] ? atomic_notifier_call_chain+0x140/0x140 [ 26.388644] ? search_exception_tables+0x47/0x50 [ 26.388646] do_general_protection+0x331/0x3e0 [ 26.388648] general_protection+0x2c/0x60 [ 26.388649] RIP: 0010:__schedule+0xdf0/0x2060 [ 26.388651] RSP: 0018:ffff8801c93a7068 EFLAGS: 00010806 [ 26.388655] RAX: 1bd5a00000000022 RBX: ffff8801db32c900 RCX: ffffffff810caeaf [ 26.388657] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dead000000000110 [ 26.388660] RBP: ffff8801c93a7238 R08: 0000000000000000 R09: 1ffff10039274de1 [ 26.388662] R10: ffff8801c93a6ed0 R11: 0000000000000001 R12: ffff8801d3948040 [ 26.388665] R13: dead000000000100 R14: dffffc0000000000 R15: ffff8801c9ca20c0 [ 26.388667] ? kvm_arch_vcpu_put+0x2af/0x3f0 [ 26.388668] ? __schedule+0xdc6/0x2060 [ 26.388670] ? __sched_text_start+0x8/0x8 [ 26.388671] ? trace_hardirqs_on+0xd/0x10 [ 26.388673] ? __call_srcu+0x7ee/0x1020 [ 26.388675] ? do_raw_spin_trylock+0x190/0x190 [ 26.388677] ? do_raw_spin_trylock+0x190/0x190 [ 26.388679] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.388680] ? __debug_object_init+0x235/0x1040 [ 26.388682] preempt_schedule_common+0x22/0x60 [ 26.388684] _cond_resched+0x1d/0x30 [ 26.388685] wait_for_completion+0xa5/0x770 [ 26.388687] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.388689] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 26.388691] ? __lockdep_init_map+0xe4/0x650 [ 26.388693] ? __init_waitqueue_head+0x97/0x140 [ 26.388694] ? init_wait_entry+0x1b0/0x1b0 [ 26.388696] __synchronize_srcu+0x1ad/0x260 [ 26.388698] ? call_srcu+0x10/0x10 [ 26.388700] ? trace_raw_output_rcu_utilization+0xb0/0xb0 [ 26.388701] ? irq_matrix_allocated+0x80/0x80 [ 26.388703] ? synchronize_srcu+0x3c5/0x570 [ 26.388705] synchronize_srcu+0x1a3/0x570 [ 26.388706] ? synchronize_srcu+0x1a3/0x570 [ 26.388708] ? __mmu_notifier_release+0x305/0x690 [ 26.388710] ? synchronize_srcu_expedited+0x20/0x20 [ 26.388712] ? lock_release+0xa40/0xa40 [ 26.388713] ? lock_release+0xa40/0xa40 [ 26.388715] ? do_raw_spin_trylock+0x190/0x190 [ 26.388717] __mmu_notifier_release+0x357/0x690 [ 26.388719] ? __mmu_notifier_invalidate_range_end+0x360/0x360 [ 26.388721] ? __khugepaged_exit+0x3f7/0x640 [ 26.388723] ? is_bpf_text_address+0xa4/0x120 [ 26.388724] ? lock_release+0xa40/0xa40 [ 26.388726] ? rcu_pm_notify+0xc0/0xc0 [ 26.388728] ? __khugepaged_exit+0x40f/0x640 [ 26.388729] exit_mmap+0x3ff/0x500 [ 26.388731] ? SyS_munmap+0x30/0x30 [ 26.388733] ? __khugepaged_exit+0x42f/0x640 [ 26.388734] ? hugepage_madvise+0xf0/0xf0 [ 26.388736] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.388738] ? rcu_note_context_switch+0x710/0x710 [ 26.388740] ? __might_sleep+0x95/0x190 [ 26.388741] mmput+0x223/0x6c0 [ 26.388743] ? get_task_exe_file+0xc0/0xc0 [ 26.388745] ? is_current_pgrp_orphaned+0xa0/0xa0 [ 26.388746] ? do_exit+0x8fa/0x1ad0 [ 26.388748] ? lock_downgrade+0x980/0x980 [ 26.388750] ? mark_held_locks+0xaf/0x100 [ 26.388751] ? do_raw_spin_trylock+0x190/0x190 [ 26.388753] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.388755] ? trace_hardirqs_on+0xd/0x10 [ 26.388756] do_exit+0x90a/0x1ad0 [ 26.388758] ? kvm_vcpu_fault+0x520/0x520 [ 26.388760] ? mm_update_next_owner+0x930/0x930 [ 26.388761] ? find_held_lock+0x35/0x1d0 [ 26.388763] ? handle_mm_fault+0x2a0/0x930 [ 26.388765] ? find_held_lock+0x35/0x1d0 [ 26.388766] ? __do_page_fault+0x5f7/0xc90 [ 26.388768] ? lock_downgrade+0x980/0x980 [ 26.388769] ? down_read_trylock+0xdb/0x170 [ 26.388771] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 26.388773] ? vmacache_find+0x5f/0x280 [ 26.388774] ? up_read+0x1a/0x40 [ 26.388776] ? __do_page_fault+0x3d6/0xc90 [ 26.388777] ? kvm_vcpu_fault+0x520/0x520 [ 26.388779] ? do_vfs_ioctl+0x486/0x1520 [ 26.388781] ? _cond_resched+0x14/0x30 [ 26.388782] ? ioctl_preallocate+0x2b0/0x2b0 [ 26.388784] ? selinux_capable+0x40/0x40 [ 26.388785] ? putname+0xf3/0x130 [ 26.388787] do_group_exit+0x149/0x400 [ 26.388788] ? SyS_exit+0x30/0x30 [ 26.388790] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.388792] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.388794] SyS_exit_group+0x1d/0x20 [ 26.388795] entry_SYSCALL_64_fastpath+0 [ 26.388798] Lost 8 message(s)! [ 27.422857] ---[ end trace 5970b16ce521c1ec ]--- [ 27.427579] Kernel panic - not syncing: Fatal exception [ 28.504050] Shutting down cpus with NMI [ 28.508487] Dumping ftrace buffer: [ 28.511996] (ftrace buffer empty) [ 28.515670] Kernel Offset: disabled [ 28.519263] Rebooting in 86400 seconds..