Warning: Permanently added '10.128.1.126' (ED25519) to the list of known hosts. executing program executing program executing program [ 141.190032][ T28] audit: type=1400 audit(1731806401.678:66): avc: denied { execmem } for pid=407 comm="syz-executor101" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 241.222543][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 241.229387][ C0] (detected by 0, t=10002 jiffies, g=1421, q=200 ncpus=2) [ 241.236403][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294961333-4294951331), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 241.249595][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g1421 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 241.260525][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 241.270331][ C0] rcu: RCU grace-period kthread stack dump: [ 241.276083][ C0] task:rcu_preempt state:R running task stack:28008 pid:14 ppid:2 flags:0x00004000 [ 241.286666][ C0] Call Trace: [ 241.289776][ C0] [ 241.292555][ C0] __schedule+0xcb5/0x1560 [ 241.296803][ C0] ? update_load_avg+0x513/0x1530 [ 241.301669][ C0] ? __sched_text_start+0x8/0x8 [ 241.306367][ C0] schedule+0xc3/0x180 [ 241.310327][ C0] schedule_timeout+0x18c/0x380 [ 241.314944][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 241.319980][ C0] ? console_conditional_schedule+0x10/0x10 [ 241.325707][ C0] ? update_process_times+0x1b0/0x1b0 [ 241.331003][ C0] ? prepare_to_swait_event+0x308/0x320 [ 241.336382][ C0] rcu_gp_fqs_loop+0x2ed/0x10a0 [ 241.341074][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 241.346101][ C0] ? rcu_gp_init+0xc7f/0xfa0 [ 241.350530][ C0] ? rcu_gp_init+0xfa0/0xfa0 [ 241.354957][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 241.360604][ C0] ? finish_swait+0x17d/0x1b0 [ 241.365120][ C0] rcu_gp_kthread+0xa3/0x3a0 [ 241.369541][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 241.375012][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 241.380047][ C0] ? __kasan_check_read+0x11/0x20 [ 241.384901][ C0] ? __kthread_parkme+0x12d/0x180 [ 241.389766][ C0] kthread+0x26d/0x300 [ 241.393666][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 241.399139][ C0] ? kthread_blkcg+0xd0/0xd0 [ 241.403560][ C0] ret_from_fork+0x1f/0x30 [ 241.407815][ C0] [ 241.410700][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 241.416856][ C0] CPU: 0 PID: 420 Comm: syz-executor101 Not tainted 6.1.112-syzkaller-00017-gdefe0024cfb0 #0 [ 241.426826][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 241.436727][ C0] RIP: 0010:_raw_spin_unlock_irq+0x48/0x70 [ 241.442358][ C0] Code: 3c 08 00 74 0c 48 c7 c7 20 f5 0d 87 e8 d1 c5 9b fc 48 83 3d 19 ad ec 01 00 74 29 48 89 df e8 f3 0e 00 00 90 fb bf 01 00 00 00 f3 4f 2e fc 65 8b 05 a4 25 e1 7a 85 c0 74 03 5b 5d c3 e8 74 3f [ 241.461811][ C0] RSP: 0018:ffffc900011e7b48 EFLAGS: 00000246 [ 241.467704][ C0] RAX: 0000000000000001 RBX: ffff888109b42300 RCX: dffffc0000000000 [ 241.475612][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 241.483413][ C0] RBP: ffffc900011e7b50 R08: ffffffff8148a33f R09: fffff5200023cfc0 [ 241.491330][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888109b42720 [ 241.499122][ C0] R13: 1ffff110213684e4 R14: 0000000000000021 R15: dffffc0000000000 [ 241.506931][ C0] FS: 00007fe354c1d6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 241.515695][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 241.522116][ C0] CR2: 00007fe354c1cf80 CR3: 00000001239a5000 CR4: 00000000003506b0 [ 241.530143][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 241.537938][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 241.545760][ C0] Call Trace: [ 241.548881][ C0] [ 241.551575][ C0] ? show_regs+0x58/0x60 [ 241.555648][ C0] ? dump_cpu_task+0x3c/0x70 [ 241.560077][ C0] ? rcu_check_gp_kthread_starvation+0x1d1/0x240 [ 241.566238][ C0] ? _find_next_bit+0x126/0x130 [ 241.570923][ C0] ? print_other_cpu_stall+0x1140/0x1300 [ 241.576394][ C0] ? _nohz_idle_balance+0x6e0/0x6e0 [ 241.581426][ C0] ? print_cpu_stall+0x590/0x590 [ 241.586203][ C0] ? acct_account_cputime+0xf7/0x2c0 [ 241.591322][ C0] ? rcu_sched_clock_irq+0xb19/0x1350 [ 241.596547][ C0] ? rcu_boost_kthread_setaffinity+0x590/0x590 [ 241.602516][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 241.607549][ C0] ? update_wall_time+0x25/0x30 [ 241.612325][ C0] ? update_process_times+0x149/0x1b0 [ 241.617530][ C0] ? tick_sched_timer+0x188/0x240 [ 241.622392][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 241.627772][ C0] ? __hrtimer_run_queues+0x41a/0xad0 [ 241.632981][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 241.637930][ C0] ? try_to_wake_up+0x670/0x1220 [ 241.642707][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 241.648616][ C0] ? hrtimer_interrupt+0x40c/0xaa0 [ 241.653561][ C0] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 241.659455][ C0] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 241.665100][ C0] [ 241.667869][ C0] [ 241.670646][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 241.676647][ C0] ? get_signal+0x12af/0x1820 [ 241.681238][ C0] ? _raw_spin_unlock_irq+0x48/0x70 [ 241.686273][ C0] ? _raw_spin_unlock_irq+0x41/0x70 [ 241.691303][ C0] get_signal+0x14e6/0x1820 [ 241.695737][ C0] ? ptrace_notify+0x350/0x350 [ 241.700346][ C0] ? __kasan_check_write+0x14/0x20 [ 241.705323][ C0] arch_do_signal_or_restart+0xb0/0x16f0 [ 241.710746][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 241.716997][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 241.721946][ C0] ? do_sigaltstack+0x3f9/0x630 [ 241.726630][ C0] ? get_sigframe_size+0x10/0x10 [ 241.731403][ C0] ? restore_altstack+0x107/0x150 [ 241.736263][ C0] ? __ia32_sys_sigaltstack+0x260/0x260 [ 241.741642][ C0] ? sched_clock_cpu+0x71/0x2b0 [ 241.746332][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 241.751631][ C0] exit_to_user_mode_loop+0x74/0xa0 [ 241.756782][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 241.762078][ C0] syscall_exit_to_user_mode+0x26/0x130 [ 241.767462][ C0] do_syscall_64+0x47/0xb0 [ 241.771714][ C0] ? clear_bhb_loop+0x55/0xb0 [ 241.776230][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 241.781954][ C0] RIP: 0033:0x7fe354c5ce97 [ 241.786210][ 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 [ 241.805649][ C0] RSP: 002b:00007fe354c1d178 EFLAGS: 00000246 [ 241.811548][ C0] RAX: 00000000000000ca RBX: 00007fe354ce7308 RCX: 00007fe354c5ce99 [ 241.819362][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe354ce7308 [ 241.827175][ C0] RBP: 00007fe354ce7300 R08: 00007fe354c1d6c0 R09: 00007fe354c1d6c0 [ 241.834986][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe354ce730c [ 241.842797][ C0] R13: 0000000000000000 R14: 00007ffe68b4bae0 R15: 00007ffe68b4bbc8 [ 241.850617][ C0] [ 285.492528][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 143s! [ 285.501342][ C0] Showing busy workqueues and worker pools: [ 285.507038][ C0] workqueue events: flags=0x0 [ 285.511587][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.511635][ C0] pending: psi_avgs_work [ 285.511694][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.511735][ C0] pending: vmstat_shepherd [ 285.511772][ C0] workqueue events_unbound: flags=0x2 [ 285.540903][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 285.540946][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 285.540994][ C0] workqueue events_power_efficient: flags=0x80 [ 285.561299][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 285.561348][ C0] pending: neigh_managed_work, neigh_periodic_work, gc_worker [ 285.561411][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 285.561452][ C0] pending: check_lifetime, neigh_periodic_work, neigh_managed_work [ 285.561517][ C0] workqueue mm_percpu_wq: flags=0x8 [ 285.597263][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.597313][ C0] pending: vmstat_update [ 285.597352][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.597392][ C0] pending: vmstat_update [ 285.597428][ C0] workqueue writeback: flags=0x4a [ 285.626061][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 285.626106][ C0] pending: wb_workfn [ 285.626449][ C0] workqueue dm_bufio_cache: flags=0x8 [ 285.642762][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.642812][ C0] pending: work_fn [ 285.642939][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 285.659840][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 285.659887][ C0] pending: addrconf_verify_work