Warning: Permanently added '10.128.0.9' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 137.222193][ T30] audit: type=1400 audit(1740315931.902:66): avc: denied { execmem } for pid=402 comm="syz-executor258" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 237.258369][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 237.265211][ C0] (detected by 0, t=10002 jiffies, g=1685, q=310) [ 237.271694][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294960943-4294950941), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 237.284895][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g1685 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 237.295823][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 237.305627][ C0] rcu: RCU grace-period kthread stack dump: [ 237.311368][ C0] task:rcu_preempt state:R running task stack:28264 pid: 14 ppid: 2 flags:0x00004000 [ 237.322229][ C0] Call Trace: [ 237.325342][ C0] [ 237.328128][ C0] __schedule+0xccc/0x1590 [ 237.332362][ C0] ? release_firmware_map_entry+0x190/0x190 [ 237.338185][ C0] ? __kasan_check_write+0x14/0x20 [ 237.343226][ C0] schedule+0x11f/0x1e0 [ 237.347215][ C0] schedule_timeout+0x18c/0x370 [ 237.351903][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 237.356943][ C0] ? console_conditional_schedule+0x30/0x30 [ 237.362666][ C0] ? update_process_times+0x200/0x200 [ 237.367958][ C0] ? prepare_to_swait_event+0x308/0x320 [ 237.373340][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 237.377943][ C0] ? debug_smp_processor_id+0x17/0x20 [ 237.383161][ C0] ? __note_gp_changes+0x4ab/0x920 [ 237.388094][ C0] ? rcu_gp_init+0xc30/0xc30 [ 237.392525][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 237.397558][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 237.401982][ C0] rcu_gp_kthread+0xa4/0x350 [ 237.406408][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 237.411099][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 237.415609][ C0] ? __kasan_check_read+0x11/0x20 [ 237.420475][ C0] ? __kthread_parkme+0xb2/0x200 [ 237.425243][ C0] kthread+0x421/0x510 [ 237.429149][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 237.433661][ C0] ? kthread_blkcg+0xd0/0xd0 [ 237.438086][ C0] ret_from_fork+0x1f/0x30 [ 237.442343][ C0] [ 237.445205][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 237.451404][ C0] NMI backtrace for cpu 0 [ 237.455547][ C0] CPU: 0 PID: 415 Comm: syz-executor258 Not tainted 5.15.178-syzkaller-00013-g7d1f9b5c2ff5 #0 [ 237.465601][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 237.475503][ C0] Call Trace: [ 237.478620][ C0] [ 237.481314][ C0] dump_stack_lvl+0x151/0x1c0 [ 237.485824][ C0] ? io_uring_drop_tctx_refs+0x190/0x190 [ 237.491296][ C0] dump_stack+0x15/0x20 [ 237.495287][ C0] nmi_cpu_backtrace+0x2f7/0x300 [ 237.500057][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 237.506046][ C0] ? panic+0x760/0x760 [ 237.509954][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 237.515856][ C0] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 237.521669][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 237.527574][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 237.533302][ C0] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 237.539291][ C0] print_other_cpu_stall+0x112d/0x1340 [ 237.544587][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 237.549362][ C0] rcu_sched_clock_irq+0xaec/0x12f0 [ 237.554393][ C0] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 237.560383][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 237.565418][ C0] update_process_times+0x198/0x200 [ 237.570446][ C0] tick_sched_timer+0x188/0x240 [ 237.575135][ C0] ? tick_setup_sched_timer+0x480/0x480 [ 237.580519][ C0] __hrtimer_run_queues+0x41a/0xad0 [ 237.585555][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 237.590495][ C0] ? clockevents_program_event+0x22f/0x300 [ 237.596572][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 237.602486][ C0] hrtimer_interrupt+0x40c/0xaa0 [ 237.607254][ C0] __sysvec_apic_timer_interrupt+0xfb/0x3f0 [ 237.612976][ C0] sysvec_apic_timer_interrupt+0xa4/0xc0 [ 237.618448][ C0] [ 237.621218][ C0] [ 237.623999][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 237.629825][ C0] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 237.635460][ C0] Code: 08 00 74 0c 48 c7 c7 58 5a ad 86 e8 a1 b4 ca fc 48 83 3d 21 37 c5 01 00 74 2a 48 89 df e8 23 05 6d fc 66 90 fb bf 01 00 00 00 62 4e 64 fc 65 8b 05 33 4a 1a 7b 85 c0 74 03 5b 5d c3 e8 63 64 [ 237.654900][ C0] RSP: 0018:ffffc90000a67bb8 EFLAGS: 00000246 [ 237.660976][ C0] RAX: 0000000000000001 RBX: ffff88810d34e900 RCX: dffffc0000000000 [ 237.668787][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 237.676594][ C0] RBP: ffffc90000a67bc0 R08: ffffffff8145b13a R09: fffff5200014cfc0 [ 237.684405][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810d34e900 [ 237.692217][ C0] R13: ffff88810d34ed20 R14: 0000000000000021 R15: dffffc0000000000 [ 237.700033][ C0] ? get_signal+0x151a/0x1630 [ 237.704545][ C0] ? _raw_spin_unlock_irq+0x41/0x70 [ 237.709579][ C0] get_signal+0x1562/0x1630 [ 237.713923][ C0] arch_do_signal_or_restart+0xbd/0x1680 [ 237.719398][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 237.725721][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 237.730666][ C0] ? __kasan_check_write+0x14/0x20 [ 237.735612][ C0] ? _copy_from_user+0x96/0xd0 [ 237.740217][ C0] ? restore_altstack+0x274/0x400 [ 237.745074][ C0] ? get_sigframe_size+0x10/0x10 [ 237.749852][ C0] ? __ia32_sys_sigaltstack+0x70/0x70 [ 237.755061][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 237.760361][ C0] exit_to_user_mode_loop+0xa0/0xe0 [ 237.765390][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 237.770686][ C0] syscall_exit_to_user_mode+0x26/0x160 [ 237.776060][ C0] do_syscall_64+0x47/0xb0 [ 237.780401][ C0] ? clear_bhb_loop+0x35/0x90 [ 237.784914][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 237.790640][ C0] RIP: 0033:0x7f75483c7ed7 [ 237.794894][ C0] 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 [ 237.814333][ C0] RSP: 002b:00007f7548388178 EFLAGS: 00000246 [ 237.820235][ C0] RAX: 00000000000000ca RBX: 00007f7548452308 RCX: 00007f75483c7ed9 [ 237.828048][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7548452308 [ 237.835863][ C0] RBP: 00007f7548452300 R08: 00007f75483886c0 R09: 00007f75483886c0 [ 237.843672][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f754845230c [ 237.851483][ C0] R13: 0000000000000000 R14: 00007ffcc24d9830 R15: 00007ffcc24d9918 [ 237.859296][ C0] [ 285.428380][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 144s! [ 285.437124][ C0] Showing busy workqueues and worker pools: [ 285.442873][ C0] workqueue events: flags=0x0 [ 285.447372][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 285.447421][ C0] pending: psi_avgs_work, vmstat_shepherd [ 285.447470][ C0] workqueue events_unbound: flags=0x2 [ 285.465932][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 285.465984][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 285.466037][ C0] workqueue events_power_efficient: flags=0x80 [ 285.486328][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 285.486375][ C0] pending: neigh_periodic_work, check_lifetime, neigh_periodic_work, gc_worker [ 285.486444][ C0] workqueue mm_percpu_wq: flags=0x8 [ 285.507942][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.507997][ C0] pending: vmstat_update [ 285.508028][ C0] workqueue writeback: flags=0x4a [ 285.524693][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 285.524743][ C0] pending: wb_workfn [ 285.524878][ C0] workqueue dm_bufio_cache: flags=0x8 [ 285.541295][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.541355][ C0] pending: work_fn [ 285.541479][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 285.558307][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 285.558357][ C0] pending: addrconf_verify_work