[ 3.577695][ T101] udevd[101]: starting version 3.2.11 [ 3.628771][ T102] udevd[102]: starting eudev-3.2.11 [ 4.858601][ T137] dhcpcd (137) used greatest stack depth: 22704 bytes left [ 11.318612][ T28] kauditd_printk_skb: 50 callbacks suppressed [ 11.318624][ T28] audit: type=1400 audit(1714239557.919:61): avc: denied { transition } for pid=224 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.323677][ T28] audit: type=1400 audit(1714239557.919:62): avc: denied { noatsecure } for pid=224 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.327384][ T28] audit: type=1400 audit(1714239557.919:63): avc: denied { write } for pid=224 comm="sh" path="pipe:[13491]" dev="pipefs" ino=13491 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 11.330756][ T28] audit: type=1400 audit(1714239557.919:64): avc: denied { rlimitinh } for pid=224 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.334291][ T28] audit: type=1400 audit(1714239557.919:65): avc: denied { siginh } for pid=224 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 429.355292][ T692] sshd (692) used greatest stack depth: 22344 bytes left Warning: Permanently added '10.128.0.80' (ED25519) to the list of known hosts. executing program executing program executing program [ 434.962744][ T28] audit: type=1400 audit(1714239981.559:66): avc: denied { execmem } for pid=702 comm="syz-executor121" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 534.996152][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 535.002943][ C1] (detected by 1, t=10002 jiffies, g=3557, q=168 ncpus=2) [ 535.009958][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294990717-4294980715), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 535.023157][ C1] rcu: rcu_preempt kthread starved for 10002 jiffies! g3557 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 535.034086][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 535.043893][ C1] rcu: RCU grace-period kthread stack dump: [ 535.049629][ C1] task:rcu_preempt state:R running task stack:28040 pid:14 ppid:2 flags:0x00004000 [ 535.060221][ C1] Call Trace: [ 535.063335][ C1] [ 535.066124][ C1] __schedule+0xca7/0x1550 [ 535.070369][ C1] ? update_load_avg+0x513/0x1530 [ 535.075229][ C1] ? __sched_text_start+0x8/0x8 [ 535.079911][ C1] ? __kasan_check_write+0x14/0x20 [ 535.084860][ C1] schedule+0xc3/0x180 [ 535.088765][ C1] schedule_timeout+0x18c/0x380 [ 535.093452][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 535.098484][ C1] ? console_conditional_schedule+0x10/0x10 [ 535.104214][ C1] ? update_process_times+0x1b0/0x1b0 [ 535.109419][ C1] ? prepare_to_swait_event+0x308/0x320 [ 535.114804][ C1] rcu_gp_fqs_loop+0x2ed/0x1060 [ 535.119487][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 535.124523][ C1] ? rcu_gp_init+0xc7f/0xf80 [ 535.128949][ C1] ? rcu_gp_init+0xf80/0xf80 [ 535.133374][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 535.139018][ C1] ? finish_swait+0x17d/0x1b0 [ 535.143530][ C1] rcu_gp_kthread+0xa3/0x390 [ 535.147957][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 535.153424][ C1] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 535.158469][ C1] ? __kasan_check_read+0x11/0x20 [ 535.163316][ C1] ? __kthread_parkme+0x12d/0x180 [ 535.168178][ C1] kthread+0x26d/0x300 [ 535.172084][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 535.177552][ C1] ? kthread_blkcg+0xd0/0xd0 [ 535.181977][ C1] ret_from_fork+0x1f/0x30 [ 535.186234][ C1] [ 535.189094][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 535.195275][ C1] CPU: 1 PID: 714 Comm: syz-executor121 Not tainted 6.1.75-syzkaller-00069-gfa87a072a7fc #0 [ 535.205160][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 535.215046][ C1] RIP: 0033:0x7f2d26dc6350 [ 535.219297][ C1] Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d da 20 03 00 e8 05 11 fb ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 [ 535.238739][ C1] RSP: 002b:00007f2d26d60c78 EFLAGS: 00000246 [ 535.244637][ C1] RAX: 0000000000000000 RBX: 00007f2d26e2a308 RCX: 00007f2d26da0419 [ 535.252452][ C1] RDX: 00007f2d26d60c80 RSI: 00007f2d26d60db0 RDI: 0000000000000021 [ 535.260267][ C1] RBP: 00007f2d26e2a300 R08: 00007f2d26d616c0 R09: 00007f2d26d616c0 [ 535.268077][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d26e2a30c [ 535.276274][ C1] R13: 0000000000000000 R14: 00007fff4a08c1a0 R15: 00007fff4a08c288 [ 535.284088][ C1] FS: 00007f2d26d616c0 GS: 0000000000000000 [ 715.506090][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 279s! [ 715.514818][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 279s! [ 715.523506][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 273s! [ 715.532358][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 280s! [ 715.540621][ C0] Showing busy workqueues and worker pools: [ 715.546330][ C0] workqueue events: flags=0x0 [ 715.550846][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.550890][ C0] pending: vmstat_shepherd, psi_avgs_work [ 715.550944][ C0] workqueue events_unbound: flags=0x2 [ 715.569417][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.569452][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.569493][ C0] workqueue events_power_efficient: flags=0x80 [ 715.589815][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 715.589855][ C0] pending: neigh_managed_work, neigh_managed_work, neigh_periodic_work, neigh_periodic_work, gc_worker [ 715.589961][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.589996][ C0] pending: check_lifetime [ 715.590025][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.625662][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.625710][ C0] pending: vmstat_update [ 715.625745][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.625779][ C0] pending: vmstat_update [ 715.625809][ C0] workqueue writeback: flags=0x4a [ 715.654413][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.654451][ C0] pending: wb_workfn [ 715.654479][ C0] workqueue kblockd: flags=0x18 [ 715.670222][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.670263][ C0] pending: blk_mq_timeout_work [ 715.670365][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.688133][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.688173][ C0] pending: work_fn [ 715.688235][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.704960][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.705000][ C0] pending: addrconf_verify_work