Warning: Permanently added '10.128.10.2' (ED25519) to the list of known hosts. executing program executing program executing program [ 251.969609][ T30] audit: type=1400 audit(1732955727.882:66): avc: denied { execmem } for pid=517 comm="syz-executor191" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 352.007645][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 352.014441][ C1] (detected by 1, t=10002 jiffies, g=2593, q=191) [ 352.020853][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294972422-4294962419), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 352.034145][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g2593 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 352.045062][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 352.054873][ C1] rcu: RCU grace-period kthread stack dump: [ 352.060625][ C1] task:rcu_preempt state:R running task stack:28224 pid: 14 ppid: 2 flags:0x00004000 [ 352.071214][ C1] Call Trace: [ 352.074313][ C1] [ 352.077106][ C1] __schedule+0xccc/0x1590 [ 352.081348][ C1] ? release_firmware_map_entry+0x190/0x190 [ 352.087209][ C1] schedule+0x11f/0x1e0 [ 352.091200][ C1] schedule_timeout+0x18c/0x370 [ 352.095999][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 352.101037][ C1] ? console_conditional_schedule+0x30/0x30 [ 352.106850][ C1] ? update_process_times+0x200/0x200 [ 352.112074][ C1] ? prepare_to_swait_event+0x308/0x320 [ 352.117440][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 352.122040][ C1] ? debug_smp_processor_id+0x17/0x20 [ 352.127243][ C1] ? __note_gp_changes+0x4ab/0x920 [ 352.132192][ C1] ? rcu_gp_init+0xc30/0xc30 [ 352.136617][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 352.141668][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 352.146083][ C1] rcu_gp_kthread+0xa4/0x350 [ 352.150508][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 352.155544][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 352.160057][ C1] ? __kasan_check_read+0x11/0x20 [ 352.164911][ C1] ? __kthread_parkme+0xb2/0x200 [ 352.169690][ C1] kthread+0x421/0x510 [ 352.173591][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 352.178190][ C1] ? kthread_blkcg+0xd0/0xd0 [ 352.182615][ C1] ret_from_fork+0x1f/0x30 [ 352.186872][ C1] [ 352.189733][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 352.195916][ C1] NMI backtrace for cpu 1 [ 352.200074][ C1] CPU: 1 PID: 529 Comm: syz-executor191 Not tainted 5.15.169-syzkaller-00085-g548ca9fbf844 #0 [ 352.210228][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 352.220111][ C1] Call Trace: [ 352.223248][ C1] [ 352.225928][ C1] dump_stack_lvl+0x151/0x1c0 [ 352.230441][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 352.235913][ C1] dump_stack+0x15/0x20 [ 352.239900][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 352.244681][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 352.250666][ C1] ? panic+0x760/0x760 [ 352.254569][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 352.260470][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 352.266285][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 352.272187][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 352.277930][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 352.283904][ C1] print_other_cpu_stall+0x112d/0x1340 [ 352.289205][ C1] ? try_invoke_on_locked_down_task+0x2a0/0x2a0 [ 352.295279][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 352.300066][ C1] ? __kasan_check_write+0x14/0x20 [ 352.304994][ C1] rcu_sched_clock_irq+0xaec/0x12f0 [ 352.310054][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 352.316019][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 352.321052][ C1] update_process_times+0x198/0x200 [ 352.326082][ C1] tick_sched_timer+0x188/0x240 [ 352.330775][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 352.336163][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 352.341194][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 352.346230][ C1] ? clockevents_program_event+0x22f/0x300 [ 352.351866][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 352.357897][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 352.362754][ C1] __sysvec_apic_timer_interrupt+0xfb/0x3f0 [ 352.368476][ C1] sysvec_apic_timer_interrupt+0xa4/0xc0 [ 352.373943][ C1] [ 352.376728][ C1] [ 352.379497][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 352.385314][ C1] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 352.391056][ C1] Code: 08 00 74 0c 48 c7 c7 d8 59 ad 86 e8 91 6b cb fc 48 83 3d 31 07 c6 01 00 74 2a 48 89 df e8 d3 cf 6d fc 66 90 fb bf 01 00 00 00 f2 18 65 fc 65 8b 05 c3 1a 1b 7b 85 c0 74 03 5b 5d c3 e8 f3 34 [ 352.410503][ C1] RSP: 0018:ffffc90000a47bb8 EFLAGS: 00000246 [ 352.416393][ C1] RAX: 0000000000000001 RBX: ffff88810ea671c0 RCX: dffffc0000000000 [ 352.424205][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 352.432016][ C1] RBP: ffffc90000a47bc0 R08: ffffffff8145abca R09: fffff52000148fc0 [ 352.439829][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810ea671c0 [ 352.447728][ C1] R13: ffff88810ea675e0 R14: 0000000000000021 R15: dffffc0000000000 [ 352.455539][ C1] ? get_signal+0x151a/0x1630 [ 352.460064][ C1] ? _raw_spin_unlock_irq+0x41/0x70 [ 352.465084][ C1] get_signal+0x1562/0x1630 [ 352.469429][ C1] arch_do_signal_or_restart+0xbd/0x1680 [ 352.474895][ C1] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 352.481144][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 352.486091][ C1] ? __kasan_check_write+0x14/0x20 [ 352.491035][ C1] ? _copy_from_user+0x96/0xd0 [ 352.495639][ C1] ? restore_altstack+0x274/0x400 [ 352.500521][ C1] ? get_sigframe_size+0x10/0x10 [ 352.505271][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 352.510481][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 352.515775][ C1] exit_to_user_mode_loop+0xa0/0xe0 [ 352.520809][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 352.526102][ C1] syscall_exit_to_user_mode+0x26/0x160 [ 352.531480][ C1] do_syscall_64+0x47/0xb0 [ 352.535742][ C1] ? clear_bhb_loop+0x35/0x90 [ 352.540248][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 352.545976][ C1] RIP: 0033:0x7f1e497acc57 [ 352.550232][ C1] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 <0f> 05 48 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 [ 352.569674][ C1] RSP: 002b:00007f1e4976d178 EFLAGS: 00000246 [ 352.575573][ C1] RAX: 00000000000000ca RBX: 00007f1e49836308 RCX: 00007f1e497acc59 [ 352.583381][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1e49836308 [ 352.591198][ C1] RBP: 00007f1e49836300 R08: 00007f1e4976d6c0 R09: 00007f1e4976d6c0 [ 352.599007][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1e4983630c [ 352.606824][ C1] R13: 0000000000000000 R14: 00007ffcc4ee9470 R15: 00007ffcc4ee9558 [ 352.614632][ C1] [ 428.757632][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 175s! [ 428.766361][ C0] Showing busy workqueues and worker pools: [ 428.772123][ C0] workqueue events: flags=0x0 [ 428.776595][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.776643][ C0] pending: psi_avgs_work [ 428.776672][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.776712][ C0] pending: vmstat_shepherd [ 428.776741][ C0] workqueue events_unbound: flags=0x2 [ 428.806047][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 428.806090][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 428.806139][ C0] workqueue events_power_efficient: flags=0x80 [ 428.826541][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.826594][ C0] pending: neigh_periodic_work [ 428.826623][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 428.826663][ C0] pending: check_lifetime, neigh_periodic_work, gc_worker [ 428.826719][ C0] workqueue mm_percpu_wq: flags=0x8 [ 428.858909][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.858956][ C0] pending: vmstat_update [ 428.858985][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.859024][ C0] pending: vmstat_update [ 428.859049][ C0] workqueue writeback: flags=0x4a [ 428.887680][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 428.887728][ C0] pending: wb_workfn [ 428.887869][ C0] workqueue dm_bufio_cache: flags=0x8 [ 428.904171][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.904225][ C0] pending: work_fn [ 428.904257][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 428.921011][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 428.921058][ C0] pending: addrconf_verify_work