Warning: Permanently added '10.128.0.181' (ED25519) to the list of known hosts. executing program executing program executing program [ 439.726434][ T30] audit: type=1400 audit(1716209740.724:66): avc: denied { execmem } for pid=705 comm="syz-executor322" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 539.756979][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 539.763756][ C1] (detected by 1, t=10002 jiffies, g=3933, q=190) [ 539.770079][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294991194-4294981191), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 539.783292][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g3933 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 539.794211][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 539.804017][ C1] rcu: RCU grace-period kthread stack dump: [ 539.809752][ C1] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 539.820343][ C1] Call Trace: [ 539.823469][ C1] [ 539.826241][ C1] __schedule+0xccc/0x1590 [ 539.830489][ C1] ? __sched_text_start+0x8/0x8 [ 539.835176][ C1] ? __kasan_check_write+0x14/0x20 [ 539.840123][ C1] schedule+0x11f/0x1e0 [ 539.844635][ C1] schedule_timeout+0x18c/0x370 [ 539.849322][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 539.854355][ C1] ? console_conditional_schedule+0x30/0x30 [ 539.860087][ C1] ? update_process_times+0x200/0x200 [ 539.865292][ C1] ? prepare_to_swait_event+0x308/0x320 [ 539.870767][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 539.875453][ C1] ? debug_smp_processor_id+0x17/0x20 [ 539.880653][ C1] ? __note_gp_changes+0x4ab/0x920 [ 539.885610][ C1] ? rcu_gp_init+0xc30/0xc30 [ 539.890031][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 539.895062][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 539.899495][ C1] rcu_gp_kthread+0xa4/0x350 [ 539.903917][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 539.908602][ C1] ? rcu_barrier_callback+0x50/0x50 [ 539.913638][ C1] ? __kasan_check_read+0x11/0x20 [ 539.918516][ C1] ? __kthread_parkme+0xb2/0x200 [ 539.923272][ C1] kthread+0x421/0x510 [ 539.927175][ C1] ? rcu_barrier_callback+0x50/0x50 [ 539.932210][ C1] ? kthread_blkcg+0xd0/0xd0 [ 539.936645][ C1] ret_from_fork+0x1f/0x30 [ 539.940979][ C1] [ 539.943841][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 539.950017][ C1] NMI backtrace for cpu 1 [ 539.954187][ C1] CPU: 1 PID: 717 Comm: syz-executor322 Not tainted 5.15.149-syzkaller-00490-g5d96939590c0 #0 [ 539.964239][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 539.974138][ C1] Call Trace: [ 539.977263][ C1] [ 539.979950][ C1] dump_stack_lvl+0x151/0x1b7 [ 539.984459][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 539.989930][ C1] dump_stack+0x15/0x17 [ 539.993919][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 539.998700][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 540.004684][ C1] ? panic+0x751/0x751 [ 540.008592][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 540.014494][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 540.020305][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 540.026208][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 540.031945][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 540.037925][ C1] print_other_cpu_stall+0x112d/0x1340 [ 540.043222][ C1] ? try_invoke_on_locked_down_task+0x2a0/0x2a0 [ 540.049296][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 540.054070][ C1] ? __kasan_check_write+0x14/0x20 [ 540.059023][ C1] rcu_sched_clock_irq+0xaec/0x12f0 [ 540.064058][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 540.070042][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 540.075506][ C1] update_process_times+0x198/0x200 [ 540.080544][ C1] tick_sched_timer+0x188/0x240 [ 540.085229][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 540.090611][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 540.095646][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 540.100594][ C1] ? clockevents_program_event+0x22f/0x300 [ 540.106669][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 540.112567][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 540.117345][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 540.123069][ C1] sysvec_apic_timer_interrupt+0x95/0xc0 [ 540.128539][ C1] [ 540.131318][ C1] [ 540.134091][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 540.139920][ C1] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 540.145550][ C1] Code: 08 00 74 0c 48 c7 c7 d8 54 8d 86 e8 41 6c e9 fc 48 83 3d 21 78 c4 01 00 74 2a 48 89 df e8 93 09 8c fc 66 90 fb bf 01 00 00 00 12 4d 83 fc 65 8b 05 b3 90 39 7b 85 c0 74 03 5b 5d c3 e8 b3 a4 [ 540.164997][ C1] RSP: 0018:ffffc90000a07bb8 EFLAGS: 00000246 [ 540.170893][ C1] RAX: 0000000000000001 RBX: ffff888116443480 RCX: dffffc0000000000 [ 540.178702][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 540.186516][ C1] RBP: ffffc90000a07bc0 R08: ffffffff81456dfa R09: fffff52000140fc0 [ 540.194333][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888116443480 [ 540.202139][ C1] R13: ffff8881164438a0 R14: 0000000000000021 R15: dffffc0000000000 [ 540.209954][ C1] ? get_signal+0x151a/0x1630 [ 540.214466][ C1] ? _raw_spin_unlock_irq+0x41/0x70 [ 540.219498][ C1] get_signal+0x1562/0x1630 [ 540.223841][ C1] arch_do_signal_or_restart+0xbd/0x1680 [ 540.229308][ C1] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 540.235559][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 540.240521][ C1] ? __kasan_check_write+0x14/0x20 [ 540.245450][ C1] ? _copy_from_user+0x96/0xd0 [ 540.250050][ C1] ? restore_altstack+0x274/0x400 [ 540.254911][ C1] ? get_sigframe_size+0x10/0x10 [ 540.259689][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 540.264895][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 540.270286][ C1] exit_to_user_mode_loop+0xa0/0xe0 [ 540.275398][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 540.280692][ C1] syscall_exit_to_user_mode+0x26/0x160 [ 540.286073][ C1] do_syscall_64+0x49/0xb0 [ 540.290321][ C1] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 540.295963][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 540.301701][ C1] RIP: 0033:0x7fa872155417 [ 540.305950][ 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 [ 540.325397][ C1] RSP: 002b:00007fa872116238 EFLAGS: 00000246 [ 540.331290][ C1] RAX: 00000000000000ca RBX: 00007fa8721df308 RCX: 00007fa872155419 [ 540.339100][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa8721df308 [ 540.346914][ C1] RBP: 00007fa8721df300 R08: 00007fa8721166c0 R09: 00007fa8721166c0 [ 540.354722][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8721df30c [ 540.362534][ C1] R13: 0000000000000000 R14: 00007ffe257626b0 R15: 00007ffe25762798 [ 540.370352][ C1] [ 540.373331][ C1] sched: RT throttling activated [ 715.506988][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 174s! [ 715.515707][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 275s! [ 715.524408][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 269s! [ 715.533254][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 175s! [ 715.541500][ C0] Showing busy workqueues and worker pools: [ 715.547232][ C0] workqueue events: flags=0x0 [ 715.551729][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.551770][ C0] pending: psi_avgs_work, vmstat_shepherd [ 715.551810][ C0] workqueue events_unbound: flags=0x2 [ 715.570313][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.570353][ C0] in-flight: 573:toggle_allocation_gate [ 715.570384][ C0] pending: flush_memcg_stats_dwork [ 715.570409][ C0] workqueue events_power_efficient: flags=0x80 [ 715.594341][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 715.594382][ C0] pending: neigh_periodic_work, neigh_periodic_work, gc_worker, check_lifetime [ 715.594451][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.615953][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.615995][ C0] pending: vmstat_update [ 715.616020][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.616054][ C0] pending: vmstat_update [ 715.616077][ C0] workqueue writeback: flags=0x4a [ 715.644594][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.644636][ C0] pending: wb_workfn [ 715.644664][ C0] workqueue kblockd: flags=0x18 [ 715.660409][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.660452][ C0] pending: blk_mq_timeout_work [ 715.660549][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.678319][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.678358][ C0] pending: work_fn [ 715.678445][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.695251][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.695301][ C0] pending: addrconf_verify_work [ 715.695463][ C0] pool 4: cpus=0-1 flags=0x4 nice=0 hung=175s workers=3 idle: 45 8