Warning: Permanently added '10.128.1.114' (ED25519) to the list of known hosts. executing program executing program executing program [ 253.227477][ T30] audit: type=1400 audit(1729478025.868:66): avc: denied { execmem } for pid=519 comm="syz-executor331" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 375.347921][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 375.355003][ C0] (detected by 0, t=10002 jiffies, g=2425, q=190) [ 375.361574][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294974752-4294964750), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 375.374875][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g2425 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 375.385796][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 375.395858][ C0] rcu: RCU grace-period kthread stack dump: [ 375.401609][ C0] task:rcu_preempt state:R running task stack:28264 pid: 14 ppid: 2 flags:0x00004000 [ 375.412268][ C0] Call Trace: [ 375.415653][ C0] [ 375.418424][ C0] __schedule+0xccc/0x1590 [ 375.422776][ C0] ? release_firmware_map_entry+0x190/0x190 [ 375.428585][ C0] ? release_firmware_map_entry+0x190/0x190 [ 375.434307][ C0] ? __kasan_check_write+0x14/0x20 [ 375.439255][ C0] schedule+0x11f/0x1e0 [ 375.443257][ C0] schedule_timeout+0x18c/0x370 [ 375.447933][ C0] ? schedule_preempt_disabled+0x20/0x20 [ 375.453410][ C0] ? console_conditional_schedule+0x30/0x30 [ 375.459243][ C0] ? update_process_times+0x200/0x200 [ 375.464454][ C0] ? prepare_to_swait_event+0x308/0x320 [ 375.470007][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 375.474619][ C0] ? debug_smp_processor_id+0x17/0x20 [ 375.479916][ C0] ? __note_gp_changes+0x4ab/0x920 [ 375.484869][ C0] ? rcu_gp_init+0xc30/0xc30 [ 375.489375][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 375.494405][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 375.498849][ C0] rcu_gp_kthread+0xa4/0x350 [ 375.503358][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 375.508225][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 375.512811][ C0] ? __kasan_check_read+0x11/0x20 [ 375.517666][ C0] ? __kthread_parkme+0xb2/0x200 [ 375.522714][ C0] kthread+0x421/0x510 [ 375.526705][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 375.531738][ C0] ? kthread_blkcg+0xd0/0xd0 [ 375.536255][ C0] ret_from_fork+0x1f/0x30 [ 375.540517][ C0] [ 375.543372][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 375.549637][ C0] NMI backtrace for cpu 0 [ 375.553887][ C0] CPU: 0 PID: 527 Comm: syz-executor331 Not tainted 5.15.167-syzkaller-02003-g5e4635681cf1 #0 [ 375.563946][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 375.573842][ C0] Call Trace: [ 375.576977][ C0] [ 375.579744][ C0] dump_stack_lvl+0x151/0x1c0 [ 375.584344][ C0] ? io_uring_drop_tctx_refs+0x190/0x190 [ 375.589831][ C0] dump_stack+0x15/0x20 [ 375.593927][ C0] nmi_cpu_backtrace+0x2f7/0x300 [ 375.598796][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 375.604854][ C0] ? panic+0x760/0x760 [ 375.608764][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 375.614661][ C0] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 375.620481][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 375.626381][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 375.632137][ C0] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 375.638362][ C0] print_other_cpu_stall+0x112d/0x1340 [ 375.643752][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 375.648553][ C0] rcu_sched_clock_irq+0xaec/0x12f0 [ 375.653557][ C0] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 375.659737][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 375.664751][ C0] update_process_times+0x198/0x200 [ 375.669788][ C0] tick_sched_timer+0x188/0x240 [ 375.674562][ C0] ? tick_setup_sched_timer+0x480/0x480 [ 375.679942][ C0] __hrtimer_run_queues+0x41a/0xad0 [ 375.684976][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 375.690142][ C0] ? clockevents_program_event+0x22f/0x300 [ 375.695773][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 375.701757][ C0] hrtimer_interrupt+0x40c/0xaa0 [ 375.706614][ C0] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 375.712429][ C0] sysvec_apic_timer_interrupt+0x95/0xc0 [ 375.717903][ C0] [ 375.720674][ C0] [ 375.723455][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 375.729271][ C0] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 375.734910][ C0] Code: 08 00 74 0c 48 c7 c7 d8 59 ad 86 e8 91 b7 cb fc 48 83 3d 01 68 c6 01 00 74 2a 48 89 df e8 b3 22 6e fc 66 90 fb bf 01 00 00 00 d2 6b 65 fc 65 8b 05 93 7b 1b 7b 85 c0 74 03 5b 5d c3 e8 c3 95 [ 375.754602][ C0] RSP: 0018:ffffc90000a17bb8 EFLAGS: 00000246 [ 375.760502][ C0] RAX: 0000000000000001 RBX: ffff88810dc73d40 RCX: dffffc0000000000 [ 375.768313][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 375.776135][ C0] RBP: ffffc90000a17bc0 R08: ffffffff81459e7a R09: fffff52000142fc0 [ 375.783938][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810dc73d40 [ 375.791751][ C0] R13: ffff88810dc74160 R14: 0000000000000021 R15: dffffc0000000000 [ 375.799566][ C0] ? get_signal+0x151a/0x1630 [ 375.804076][ C0] ? _raw_spin_unlock_irq+0x41/0x70 [ 375.809196][ C0] get_signal+0x1562/0x1630 [ 375.813537][ C0] arch_do_signal_or_restart+0xbd/0x1680 [ 375.819010][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 375.825263][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 375.830286][ C0] ? __kasan_check_write+0x14/0x20 [ 375.835242][ C0] ? _copy_from_user+0x96/0xd0 [ 375.839834][ C0] ? restore_altstack+0x274/0x400 [ 375.844700][ C0] ? get_sigframe_size+0x10/0x10 [ 375.849467][ C0] ? __ia32_sys_sigaltstack+0x70/0x70 [ 375.854685][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 375.859970][ C0] exit_to_user_mode_loop+0xa0/0xe0 [ 375.865138][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 375.870669][ C0] syscall_exit_to_user_mode+0x26/0x160 [ 375.876049][ C0] do_syscall_64+0x47/0xb0 [ 375.880300][ C0] ? clear_bhb_loop+0x35/0x90 [ 375.884910][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 375.890626][ C0] RIP: 0033:0x7f4468064c57 [ 375.894896][ 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 [ 375.914332][ C0] RSP: 002b:00007f4468025178 EFLAGS: 00000246 [ 375.920222][ C0] RAX: 00000000000000ca RBX: 00007f44680ee308 RCX: 00007f4468064c59 [ 375.928073][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f44680ee308 [ 375.935845][ C0] RBP: 00007f44680ee300 R08: 00007f44680256c0 R09: 00007f44680256c0 [ 375.943743][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f44680ee30c [ 375.952176][ C0] R13: 0000000000000000 R14: 00007ffe20b13c60 R15: 00007ffe20b13d48 [ 375.960110][ C0] [ 428.787905][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 175s! [ 428.796718][ C0] Showing busy workqueues and worker pools: [ 428.802445][ C0] workqueue events: flags=0x0 [ 428.807076][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.807122][ C0] pending: psi_avgs_work [ 428.807151][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.807184][ C0] pending: vmstat_shepherd [ 428.807206][ C0] workqueue events_unbound: flags=0x2 [ 428.836434][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 428.836472][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 428.836514][ C0] workqueue events_power_efficient: flags=0x80 [ 428.856822][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 428.856863][ C0] pending: neigh_periodic_work, neigh_periodic_work, gc_worker [ 428.856905][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.856937][ C0] pending: check_lifetime [ 428.856962][ C0] workqueue mm_percpu_wq: flags=0x8 [ 428.889311][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.889357][ C0] pending: vmstat_update [ 428.889381][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.889412][ C0] pending: vmstat_update [ 428.889434][ C0] workqueue writeback: flags=0x4a [ 428.918137][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 428.918198][ C0] pending: wb_workfn [ 428.918320][ C0] workqueue dm_bufio_cache: flags=0x8 [ 428.934686][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.934727][ C0] pending: work_fn [ 428.934880][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 428.951696][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 428.951736][ C0] pending: addrconf_verify_work