Warning: Permanently added '10.128.0.42' (ED25519) to the list of known hosts. executing program executing program executing program [ 303.371847][ T30] audit: type=1400 audit(1726538965.144:66): avc: denied { execmem } for pid=568 comm="syz-executor526" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 403.413088][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 403.419961][ C0] (detected by 0, t=10002 jiffies, g=2957, q=213) [ 403.426371][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294977554-4294967551), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 403.439565][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g2957 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 403.450496][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 403.460301][ C0] rcu: RCU grace-period kthread stack dump: [ 403.466040][ C0] task:rcu_preempt state:R running task stack:28296 pid: 14 ppid: 2 flags:0x00004000 [ 403.476629][ C0] Call Trace: [ 403.479750][ C0] [ 403.482529][ C0] __schedule+0xccc/0x1590 [ 403.486775][ C0] ? release_firmware_map_entry+0x190/0x190 [ 403.492504][ C0] ? __kasan_check_write+0x14/0x20 [ 403.497460][ C0] schedule+0x11f/0x1e0 [ 403.501440][ C0] schedule_timeout+0x18c/0x370 [ 403.506129][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 403.511423][ C0] ? console_conditional_schedule+0x30/0x30 [ 403.517148][ C0] ? update_process_times+0x200/0x200 [ 403.522361][ C0] ? prepare_to_swait_event+0x308/0x320 [ 403.527746][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 403.532343][ C0] ? debug_smp_processor_id+0x17/0x20 [ 403.537546][ C0] ? __note_gp_changes+0x4ab/0x920 [ 403.542491][ C0] ? rcu_gp_init+0xc30/0xc30 [ 403.546918][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 403.551957][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 403.556381][ C0] rcu_gp_kthread+0xa4/0x350 [ 403.560806][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 403.565497][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 403.570008][ C0] ? __kasan_check_read+0x11/0x20 [ 403.574875][ C0] ? __kthread_parkme+0xb2/0x200 [ 403.579643][ C0] kthread+0x421/0x510 [ 403.583549][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 403.588061][ C0] ? kthread_blkcg+0xd0/0xd0 [ 403.592484][ C0] ret_from_fork+0x1f/0x30 [ 403.596747][ C0] [ 403.599615][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 403.605766][ C0] NMI backtrace for cpu 0 [ 403.609950][ C0] CPU: 0 PID: 581 Comm: syz-executor526 Not tainted 5.15.161-syzkaller-00425-gb92c0d35d015 #0 [ 403.620000][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 403.629893][ C0] Call Trace: [ 403.633018][ C0] [ 403.635893][ C0] dump_stack_lvl+0x151/0x1c0 [ 403.640408][ C0] ? io_uring_drop_tctx_refs+0x190/0x190 [ 403.645876][ C0] dump_stack+0x15/0x20 [ 403.649884][ C0] nmi_cpu_backtrace+0x2f7/0x300 [ 403.654642][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 403.660629][ C0] ? panic+0x760/0x760 [ 403.664541][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 403.670442][ C0] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 403.676254][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 403.682159][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 403.687884][ C0] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 403.693873][ C0] print_other_cpu_stall+0x112d/0x1340 [ 403.699166][ C0] ? try_invoke_on_locked_down_task+0x2a0/0x2a0 [ 403.705246][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 403.710016][ C0] ? __kasan_check_write+0x14/0x20 [ 403.714966][ C0] rcu_sched_clock_irq+0xaec/0x12f0 [ 403.720000][ C0] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 403.725985][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 403.731023][ C0] update_process_times+0x198/0x200 [ 403.736057][ C0] tick_sched_timer+0x188/0x240 [ 403.740743][ C0] ? tick_setup_sched_timer+0x480/0x480 [ 403.746122][ C0] __hrtimer_run_queues+0x41a/0xad0 [ 403.751158][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 403.756109][ C0] ? clockevents_program_event+0x22f/0x300 [ 403.761742][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 403.767646][ C0] hrtimer_interrupt+0x40c/0xaa0 [ 403.772425][ C0] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 403.778147][ C0] sysvec_apic_timer_interrupt+0x95/0xc0 [ 403.783615][ C0] [ 403.786392][ C0] [ 403.789169][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 403.794988][ C0] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 403.800632][ C0] Code: 08 00 74 0c 48 c7 c7 d8 58 ad 86 e8 d1 a5 cc fc 48 83 3d a1 57 c7 01 00 74 2a 48 89 df e8 43 0d 6f fc 66 90 fb bf 01 00 00 00 a2 55 66 fc 65 8b 05 33 6c 1c 7b 85 c0 74 03 5b 5d c3 e8 63 86 [ 403.820071][ C0] RSP: 0018:ffffc90000a77bb8 EFLAGS: 00000246 [ 403.825973][ C0] RAX: 0000000000000001 RBX: ffff88810ccf4ec0 RCX: dffffc0000000000 [ 403.833782][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 403.841596][ C0] RBP: ffffc90000a77bc0 R08: ffffffff8145996a R09: fffff5200014efc0 [ 403.849403][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810ccf4ec0 [ 403.857218][ C0] R13: ffff88810ccf52e0 R14: 0000000000000021 R15: dffffc0000000000 [ 403.865114][ C0] ? get_signal+0x151a/0x1630 [ 403.869629][ C0] ? _raw_spin_unlock_irq+0x41/0x70 [ 403.874661][ C0] get_signal+0x1562/0x1630 [ 403.879003][ C0] arch_do_signal_or_restart+0xbd/0x1680 [ 403.884468][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 403.890723][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 403.895669][ C0] ? __kasan_check_write+0x14/0x20 [ 403.900617][ C0] ? _copy_from_user+0x96/0xd0 [ 403.905219][ C0] ? restore_altstack+0x274/0x400 [ 403.910072][ C0] ? get_sigframe_size+0x10/0x10 [ 403.914947][ C0] ? __ia32_sys_sigaltstack+0x70/0x70 [ 403.920147][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 403.925442][ C0] exit_to_user_mode_loop+0xa0/0xe0 [ 403.930473][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 403.935856][ C0] syscall_exit_to_user_mode+0x26/0x160 [ 403.941234][ C0] do_syscall_64+0x47/0xb0 [ 403.945488][ C0] ? clear_bhb_loop+0x35/0x90 [ 403.950006][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 403.955737][ C0] RIP: 0033:0x7f88d4258e97 [ 403.959981][ 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 [ 403.979506][ C0] RSP: 002b:00007f88d4219178 EFLAGS: 00000246 [ 403.985417][ C0] RAX: 00000000000000ca RBX: 00007f88d42e3308 RCX: 00007f88d4258e99 [ 403.993226][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f88d42e3308 [ 404.001032][ C0] RBP: 00007f88d42e3300 R08: 00007f88d42196c0 R09: 00007f88d42196c0 [ 404.008842][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f88d42e330c [ 404.016655][ C0] R13: 0000000000000000 R14: 00007ffcb5e93650 R15: 00007ffcb5e93738 [ 404.024483][ C0] [ 572.203017][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 268s! [ 572.211813][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 268s! [ 572.220483][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 268s! [ 572.228747][ C0] Showing busy workqueues and worker pools: [ 572.234461][ C0] workqueue events: flags=0x0 [ 572.238954][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.238998][ C0] pending: psi_avgs_work [ 572.239026][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.239064][ C0] pending: vmstat_shepherd [ 572.239093][ C0] workqueue events_unbound: flags=0x2 [ 572.268223][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 572.268264][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 572.268310][ C0] workqueue events_power_efficient: flags=0x80 [ 572.288632][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.288677][ C0] pending: neigh_periodic_work [ 572.288700][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 572.288739][ C0] pending: neigh_periodic_work, gc_worker, check_lifetime [ 572.288792][ C0] workqueue writeback: flags=0x4a [ 572.320792][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 572.320832][ C0] pending: wb_workfn [ 572.320947][ C0] workqueue dm_bufio_cache: flags=0x8 [ 572.337248][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.337293][ C0] pending: work_fn [ 572.337414][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 572.354324][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 572.354369][ C0] pending: addrconf_verify_work