[ 84.299652][ T27] audit: type=1400 audit(1576733999.710:38): avc: denied { watch } for pid=10101 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2232 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 84.830288][ T27] audit: type=1800 audit(1576734000.270:39): pid=10016 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 84.854681][ T27] audit: type=1800 audit(1576734000.270:40): pid=10016 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [ 85.684309][ T27] audit: type=1400 audit(1576734001.120:41): avc: denied { map } for pid=10193 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 565.613159][ T27] audit: type=1400 audit(1576734481.050:42): avc: denied { map } for pid=10205 comm="syz-executor069" path="/root/syz-executor069320615" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 565.659052][ T27] audit: type=1400 audit(1576734481.090:43): avc: denied { open } for pid=10212 comm="syz-executor069" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=perf_event permissive=1 [ 565.684511][ T27] audit: type=1400 audit(1576734481.090:44): avc: denied { kernel } for pid=10212 comm="syz-executor069" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=perf_event permissive=1 executing program executing program executing program executing program executing program [ 569.066627][ C1] hrtimer: interrupt took 59918 ns [ 671.056592][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 671.065929][ C1] (detected by 1, t=10502 jiffies, g=9705, q=83) [ 671.074218][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295004244-4294993742), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 671.090189][ C1] syz-executor069 R running task 28568 10245 10207 0x80000004 [ 671.099166][ C1] Call Trace: [ 671.104358][ C1] [ 671.108568][ C1] sched_show_task.cold+0x2ee/0x35d [ 671.114068][ C1] ? can_nice.part.0+0x20/0x20 [ 671.118905][ C1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 671.124709][ C1] rcu_sched_clock_irq.cold+0xaf4/0xc02 [ 671.130331][ C1] update_process_times+0x2d/0x70 [ 671.135427][ C1] tick_sched_handle+0xa2/0x190 [ 671.140414][ C1] tick_sched_timer+0x53/0x140 [ 671.145187][ C1] __hrtimer_run_queues+0x364/0xe40 [ 671.150402][ C1] ? tick_sched_do_timer+0x1b0/0x1b0 [ 671.155691][ C1] ? hrtimer_init+0x330/0x330 [ 671.160384][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 671.166107][ C1] ? ktime_get_update_offsets_now+0x2ce/0x430 [ 671.172540][ C1] hrtimer_interrupt+0x314/0x770 [ 671.177572][ C1] smp_apic_timer_interrupt+0x160/0x610 [ 671.183506][ C1] apic_timer_interrupt+0xf/0x20 [ 671.188527][ C1] [ 671.191475][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x90/0xe0 [ 671.197979][ C1] Code: 48 c7 c0 d8 34 93 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 39 48 83 3d 3f f1 ca 01 00 74 24 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 e1 77 88 f9 65 8b 05 d2 da 39 78 [ 671.218193][ C1] RSP: 0000:ffffc90001fe7ca8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 671.226608][ C1] RAX: 1ffffffff132669b RBX: 0000000000000286 RCX: 0000000000000000 [ 671.234579][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: 0000000000000286 [ 671.242558][ C1] RBP: ffffc90001fe7cb8 R08: ffff8880914ba100 R09: 0000000000000000 [ 671.250529][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888083a2ac00 [ 671.258504][ C1] R13: ffff8880914ba820 R14: 000000000000000a R15: 000000000000000b [ 671.266554][ C1] force_sig_info_to_task+0x2a2/0x340 [ 671.272164][ C1] force_sig_fault+0xbe/0x100 [ 671.277731][ C1] ? force_sig_fault_to_task+0xf0/0xf0 [ 671.283262][ C1] ? __kasan_check_write+0x14/0x20 [ 671.288448][ C1] ? trace_hardirqs_on+0x67/0x240 [ 671.293555][ C1] __bad_area_nosemaphore+0x32e/0x420 [ 671.298962][ C1] ? vmacache_find+0x65/0x310 [ 671.303646][ C1] bad_area+0x69/0x80 [ 671.307651][ C1] __do_page_fault+0x9eb/0xd80 [ 671.312510][ C1] ? page_fault+0x16/0x40 [ 671.316864][ C1] do_page_fault+0x38/0x590 [ 671.321372][ C1] page_fault+0x39/0x40 [ 671.325628][ C1] RIP: 0033:0x401515 [ 671.329524][ C1] Code: 00 00 00 be b4 fe 4a 00 e8 38 ee ff ff 48 85 c0 0f 85 d2 fe ff ff e9 4a ff ff ff e8 55 d9 04 00 48 6b 44 24 28 18 8b 7c 24 38 <48> 8b 88 50 00 00 20 48 8b 90 48 00 00 20 48 8b b0 40 00 00 20 e8 [ 671.349513][ C1] RSP: 002b:00007f35767f7b20 EFLAGS: 00010206 [ 671.356982][ C1] RAX: 0000000002ed3b50 RBX: 00000000006dcc28 RCX: 0000000000406cd7 [ 671.364971][ C1] RDX: 1482b7b55b3372eb RSI: 0000000000000000 RDI: 0000000000000004 [ 671.372975][ C1] RBP: 00000000006dcc20 R08: 00007f35767f7b20 R09: 00000000006dcc20 [ 671.380947][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000006dcc2c [ 671.388918][ C1] R13: 00007ffc626d62cf R14: 00007f35767f89c0 R15: 00000000006dcc20 [ 671.397181][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g9705 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 671.408273][ C1] rcu: RCU grace-period kthread stack dump: [ 671.414256][ C1] rcu_preempt R running task 29272 10 2 0x80004000 [ 671.422345][ C1] Call Trace: [ 671.425686][ C1] __schedule+0x934/0x1f90 [ 671.430133][ C1] ? __sched_text_start+0x8/0x8 [ 671.435025][ C1] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 671.440833][ C1] ? schedule_timeout+0x47c/0xc50 [ 671.446605][ C1] ? lockdep_hardirqs_on+0x421/0x5e0 [ 671.451900][ C1] schedule+0xdc/0x2b0 [ 671.455973][ C1] schedule_timeout+0x486/0xc50 [ 671.460840][ C1] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 671.466662][ C1] ? usleep_range+0x170/0x170 [ 671.471363][ C1] ? trace_hardirqs_on+0x67/0x240 [ 671.476407][ C1] ? __next_timer_interrupt+0x1a0/0x1a0 [ 671.482091][ C1] ? swake_up_one+0x60/0x60 [ 671.486607][ C1] rcu_gp_kthread+0x9b2/0x18d0 [ 671.491379][ C1] ? rcu_barrier+0x350/0x350 [ 671.495978][ C1] ? trace_hardirqs_on+0x67/0x240 [ 671.501033][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 671.507358][ C1] ? __kthread_parkme+0x108/0x1c0 [ 671.512400][ C1] ? __kasan_check_read+0x11/0x20 [ 671.517430][ C1] kthread+0x361/0x430 [ 671.521500][ C1] ? rcu_barrier+0x350/0x350 [ 671.526088][ C1] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 671.532770][ C1] ret_from_fork+0x24/0x30