[ 6.068069][ T23] audit: type=1400 audit(1635145453.519:69): avc: denied { lock } for pid=255 comm="getty" path="/run/utmp" dev="tmpfs" ino=2 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 6.070894][ T23] audit: type=1400 audit(1635145453.519:70): avc: denied { read } for pid=255 comm="getty" name="log" dev="sda1" ino=1125 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 syzkaller syzkaller login: [ 8.673424][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 14.483157][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 14.672215][ T23] audit: type=1400 audit(1635145462.129:71): avc: denied { transition } for pid=290 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.695394][ T23] audit: type=1400 audit(1635145462.159:72): avc: denied { write } for pid=290 comm="sh" path="pipe:[220]" dev="pipefs" ino=220 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.1.70' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 907.899502][ T23] audit: type=1400 audit(1635146355.359:73): avc: denied { execmem } for pid=366 comm="syz-executor554" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 907.924194][ T23] audit: type=1400 audit(1635146355.389:74): avc: denied { open } for pid=371 comm="syz-executor554" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=perf_event permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 907.952188][ T23] audit: type=1400 audit(1635146355.389:75): avc: denied { perfmon } for pid=371 comm="syz-executor554" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 907.975091][ T23] audit: type=1400 audit(1635146355.389:76): avc: denied { kernel } for pid=371 comm="syz-executor554" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=perf_event permissive=1 [ 925.512726][ C1] hrtimer: interrupt took 21239 ns [ 1008.032676][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 1008.039639][ C1] (detected by 1, t=10002 jiffies, g=61, q=35) [ 1008.045865][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 5772 (4295038025-4295032253), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1008.059123][ C1] rcu: rcu_preempt kthread starved for 5773 jiffies! g61 f0x2 RCU_GP_CLEANUP(7) ->state=0x0 ->cpu=1 [ 1008.069866][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 1008.079833][ C1] rcu: RCU grace-period kthread stack dump: [ 1008.085705][ C1] task:rcu_preempt state:R running task stack: 0 pid: 13 ppid: 2 flags:0x00004000 [ 1008.096453][ C1] Call Trace: [ 1008.099739][ C1] __schedule+0x944/0xda0 [ 1008.104056][ C1] ? release_firmware_map_entry+0x194/0x194 [ 1008.109934][ C1] ? __kasan_check_write+0x14/0x20 [ 1008.115030][ C1] ? preempt_schedule_thunk+0x16/0x18 [ 1008.120382][ C1] preempt_schedule+0x162/0x1b0 [ 1008.125310][ C1] ? schedule_preempt_disabled+0x20/0x20 [ 1008.130934][ C1] ? sysvec_reschedule_ipi+0x84/0x160 [ 1008.136289][ C1] ? asm_sysvec_reschedule_ipi+0x12/0x20 [ 1008.141902][ C1] preempt_schedule_thunk+0x16/0x18 [ 1008.147083][ C1] ? find_next_bit+0xcc/0x120 [ 1008.151744][ C1] _raw_spin_unlock_irq+0x61/0x70 [ 1008.156749][ C1] rcu_gp_kthread+0x1699/0x1e00 [ 1008.161672][ C1] ? __kasan_check_write+0x14/0x20 [ 1008.166766][ C1] ? rcu_barrier_callback+0x50/0x50 [ 1008.171968][ C1] ? __kasan_check_read+0x11/0x20 [ 1008.176973][ C1] ? __kthread_parkme+0xba/0x1d0 [ 1008.181892][ C1] kthread+0x371/0x390 [ 1008.185944][ C1] ? rcu_barrier_callback+0x50/0x50 [ 1008.191121][ C1] ? kthread_blkcg+0xd0/0xd0 [ 1008.195694][ C1] ret_from_fork+0x1f/0x30 [ 1145.552648][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 230s! [ 1145.561613][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 222s! [ 1145.570586][ C0] Showing busy workqueues and worker pools: [ 1145.576502][ C0] workqueue events: flags=0x0 [ 1145.581200][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 1145.588843][ C0] pending: perf_sched_delayed [ 1145.593896][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 1145.601533][ C0] pending: vmstat_shepherd, psi_avgs_work [ 1145.607643][ C0] workqueue events_unbound: flags=0x2 [ 1145.613027][ C0] pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/512 refcnt=3 [ 1145.620218][ C0] in-flight: 9:toggle_allocation_gate [ 1145.625959][ C0] workqueue events_power_efficient: flags=0x80 [ 1145.632195][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 1145.639831][ C0] pending: neigh_periodic_work [ 1145.644964][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 1145.652595][ C0] pending: neigh_periodic_work, gc_worker, check_lifetime [ 1145.660093][ C0] workqueue mm_percpu_wq: flags=0x8 [ 1145.665305][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 1145.672940][ C0] in-flight: 24:vmstat_update [ 1145.677990][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 1145.685625][ C0] in-flight: 67:vmstat_update [ 1145.690677][ C0] workqueue writeback: flags=0x4a [ 1145.695724][ C0] pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/256 refcnt=5 MAYDAY [ 1145.703553][ C0] in-flight: 27(RESCUER):wb_workfn [ 1145.709060][ C0] workqueue dm_bufio_cache: flags=0x8 [ 1145.714453][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 1145.722086][ C0] pending: work_fn [ 1145.726188][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 1145.731837][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 1145.739303][ C0] pending: addrconf_verify_work [ 1145.744546][ C0] pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=230s workers=2 idle: 5 [ 1145.752665][ C0] pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=222s workers=2 idle: 124 [ 1145.760931][ C0] pool 4: cpus=0-1 flags=0x5 nice=0 hung=83s workers=2 manager: 360