Warning: Permanently added '10.128.1.231' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 253.604805][ T30] audit: type=1400 audit(1729484728.323:66): avc: denied { execmem } for pid=520 comm="syz-executor217" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 353.615988][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 353.622778][ C0] (detected by 0, t=10002 jiffies, g=2393, q=211) [ 353.629358][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10001 (4294972581-4294962580), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 353.642553][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g2393 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 353.653481][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 353.663289][ C0] rcu: RCU grace-period kthread stack dump: [ 353.669115][ C0] task:rcu_preempt state:R running task stack:28264 pid: 14 ppid: 2 flags:0x00004000 [ 353.679704][ C0] Call Trace: [ 353.682824][ C0] [ 353.685596][ C0] __schedule+0xccc/0x1590 [ 353.689852][ C0] ? release_firmware_map_entry+0x190/0x190 [ 353.695579][ C0] ? del_timer_sync+0x1bc/0x230 [ 353.700265][ C0] ? __kasan_check_write+0x14/0x20 [ 353.705218][ C0] ? __kasan_check_write+0x14/0x20 [ 353.710246][ C0] schedule+0x11f/0x1e0 [ 353.714235][ C0] schedule_timeout+0x18c/0x370 [ 353.718924][ C0] ? __kasan_check_write+0x14/0x20 [ 353.723871][ C0] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 353.729253][ C0] ? console_conditional_schedule+0x30/0x30 [ 353.734981][ C0] ? update_process_times+0x200/0x200 [ 353.740189][ C0] ? prepare_to_swait_event+0x308/0x320 [ 353.745674][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 353.750267][ C0] ? dump_blkd_tasks+0x7e0/0x7e0 [ 353.755064][ C0] ? rcu_gp_init+0xc30/0xc30 [ 353.759467][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 353.764500][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 353.768927][ C0] rcu_gp_kthread+0xa4/0x350 [ 353.773352][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 353.778045][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 353.782554][ C0] ? __kasan_check_read+0x11/0x20 [ 353.787414][ C0] ? __kthread_parkme+0xb2/0x200 [ 353.792361][ C0] kthread+0x421/0x510 [ 353.796266][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 353.800864][ C0] ? kthread_blkcg+0xd0/0xd0 [ 353.805293][ C0] ret_from_fork+0x1f/0x30 [ 353.809546][ C0] [ 353.812410][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 353.818573][ C0] NMI backtrace for cpu 0 [ 353.822749][ C0] CPU: 0 PID: 532 Comm: syz-executor217 Not tainted 5.15.167-syzkaller-02003-g5e4635681cf1 #0 [ 353.832807][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 353.842702][ C0] Call Trace: [ 353.845826][ C0] [ 353.848514][ C0] dump_stack_lvl+0x151/0x1c0 [ 353.853034][ C0] ? io_uring_drop_tctx_refs+0x190/0x190 [ 353.858501][ C0] dump_stack+0x15/0x20 [ 353.862493][ C0] nmi_cpu_backtrace+0x2f7/0x300 [ 353.867264][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 353.873252][ C0] ? panic+0x760/0x760 [ 353.877158][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 353.883060][ C0] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 353.888879][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 353.894781][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 353.900526][ C0] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 353.906495][ C0] print_other_cpu_stall+0x112d/0x1340 [ 353.911795][ C0] ? try_invoke_on_locked_down_task+0x2a0/0x2a0 [ 353.917867][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 353.922646][ C0] ? __kasan_check_write+0x14/0x20 [ 353.927587][ C0] rcu_sched_clock_irq+0xaec/0x12f0 [ 353.932627][ C0] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 353.938617][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 353.943642][ C0] update_process_times+0x198/0x200 [ 353.948678][ C0] tick_sched_timer+0x188/0x240 [ 353.953367][ C0] ? tick_setup_sched_timer+0x480/0x480 [ 353.958828][ C0] __hrtimer_run_queues+0x41a/0xad0 [ 353.963873][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 353.968812][ C0] ? clockevents_program_event+0x22f/0x300 [ 353.974456][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 353.980357][ C0] hrtimer_interrupt+0x40c/0xaa0 [ 353.985135][ C0] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 353.990859][ C0] sysvec_apic_timer_interrupt+0x95/0xc0 [ 353.996411][ C0] [ 353.999192][ C0] [ 354.001969][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 354.007781][ C0] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 354.013431][ 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 [ 354.032953][ C0] RSP: 0018:ffffc90000a77bb8 EFLAGS: 00000246 [ 354.038858][ C0] RAX: 0000000000000001 RBX: ffff888116173d40 RCX: dffffc0000000000 [ 354.046666][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 354.054475][ C0] RBP: ffffc90000a77bc0 R08: ffffffff81459e7a R09: fffff5200014efc0 [ 354.062286][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888116173d40 [ 354.070098][ C0] R13: ffff888116174160 R14: 0000000000000021 R15: dffffc0000000000 [ 354.077912][ C0] ? get_signal+0x151a/0x1630 [ 354.082425][ C0] ? _raw_spin_unlock_irq+0x41/0x70 [ 354.087458][ C0] get_signal+0x1562/0x1630 [ 354.091803][ C0] arch_do_signal_or_restart+0xbd/0x1680 [ 354.097265][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 354.103606][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 354.108551][ C0] ? __kasan_check_write+0x14/0x20 [ 354.113496][ C0] ? _copy_from_user+0x96/0xd0 [ 354.118184][ C0] ? restore_altstack+0x274/0x400 [ 354.123043][ C0] ? get_sigframe_size+0x10/0x10 [ 354.127826][ C0] ? __ia32_sys_sigaltstack+0x70/0x70 [ 354.133024][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 354.138320][ C0] exit_to_user_mode_loop+0xa0/0xe0 [ 354.143353][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 354.148647][ C0] syscall_exit_to_user_mode+0x26/0x160 [ 354.154028][ C0] do_syscall_64+0x47/0xb0 [ 354.158280][ C0] ? clear_bhb_loop+0x35/0x90 [ 354.162795][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 354.168524][ C0] RIP: 0033:0x7faf19403c57 [ 354.172782][ 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 [ 354.192216][ C0] RSP: 002b:00007faf193c4178 EFLAGS: 00000246 [ 354.198122][ C0] RAX: 00000000000000ca RBX: 00007faf1948d308 RCX: 00007faf19403c59 [ 354.206104][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007faf1948d308 [ 354.213917][ C0] RBP: 00007faf1948d300 R08: 00007faf193c46c0 R09: 00007faf193c46c0 [ 354.221749][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007faf1948d30c [ 354.229540][ C0] R13: 0000000000000000 R14: 00007fff970f6df0 R15: 00007fff970f6ed8 [ 354.237442][ C0] [ 428.775998][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 172s! [ 428.784719][ C0] Showing busy workqueues and worker pools: [ 428.790455][ C0] workqueue events: flags=0x0 [ 428.794965][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.795004][ C0] pending: vmstat_shepherd, psi_avgs_work [ 428.795041][ C0] workqueue events_unbound: flags=0x2 [ 428.813530][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 428.813563][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 428.813602][ C0] workqueue events_power_efficient: flags=0x80 [ 428.833923][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 428.833962][ C0] pending: neigh_periodic_work, neigh_periodic_work, gc_worker [ 428.834002][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.834033][ C0] pending: check_lifetime [ 428.834062][ C0] workqueue mm_percpu_wq: flags=0x8 [ 428.866232][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.866271][ C0] pending: vmstat_update [ 428.866296][ C0] workqueue writeback: flags=0x4a [ 428.882973][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 428.883005][ C0] pending: wb_workfn [ 428.883109][ C0] workqueue dm_bufio_cache: flags=0x8 [ 428.899399][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.899437][ C0] pending: work_fn [ 428.899550][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 428.916358][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 428.916395][ C0] pending: addrconf_verify_work