Warning: Permanently added '10.128.1.136' (ED25519) to the list of known hosts. executing program executing program executing program [ 498.253814][ T30] audit: type=1400 audit(1716995583.271:66): avc: denied { execmem } for pid=762 comm="syz-executor319" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 598.269995][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 598.276940][ C1] (detected by 1, t=10002 jiffies, g=4565, q=211) [ 598.283267][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10000 (4294997046-4294987046), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 598.296457][ C1] rcu: rcu_preempt kthread starved for 10000 jiffies! g4565 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 598.307388][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 598.317201][ C1] rcu: RCU grace-period kthread stack dump: [ 598.322992][ C1] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 598.333621][ C1] Call Trace: [ 598.336725][ C1] [ 598.339510][ C1] __schedule+0xccc/0x1590 [ 598.343768][ C1] ? __sched_text_start+0x8/0x8 [ 598.348447][ C1] ? del_timer_sync+0x1bc/0x230 [ 598.353136][ C1] ? __kasan_check_write+0x14/0x20 [ 598.358080][ C1] ? __kasan_check_write+0x14/0x20 [ 598.363029][ C1] schedule+0x11f/0x1e0 [ 598.367027][ C1] schedule_timeout+0x18c/0x370 [ 598.371702][ C1] ? __kasan_check_write+0x14/0x20 [ 598.376661][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 598.381951][ C1] ? console_conditional_schedule+0x30/0x30 [ 598.387856][ C1] ? update_process_times+0x200/0x200 [ 598.393066][ C1] ? prepare_to_swait_event+0x308/0x320 [ 598.398449][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 598.403045][ C1] ? dump_blkd_tasks+0x7e0/0x7e0 [ 598.407852][ C1] ? rcu_gp_init+0xc30/0xc30 [ 598.412246][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 598.417281][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 598.421707][ C1] rcu_gp_kthread+0xa4/0x350 [ 598.426130][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 598.430822][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 598.435335][ C1] ? __kasan_check_read+0x11/0x20 [ 598.440419][ C1] ? __kthread_parkme+0xb2/0x200 [ 598.445185][ C1] kthread+0x421/0x510 [ 598.449092][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 598.453602][ C1] ? kthread_blkcg+0xd0/0xd0 [ 598.458028][ C1] ret_from_fork+0x1f/0x30 [ 598.462293][ C1] [ 598.465151][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 598.471324][ C1] NMI backtrace for cpu 1 [ 598.475489][ C1] CPU: 1 PID: 771 Comm: syz-executor319 Not tainted 5.15.149-syzkaller-00055-g424f92bcbe8f #0 [ 598.485541][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 598.495438][ C1] Call Trace: [ 598.498560][ C1] [ 598.501250][ C1] dump_stack_lvl+0x151/0x1b7 [ 598.505769][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 598.511236][ C1] dump_stack+0x15/0x17 [ 598.515311][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 598.520086][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 598.526076][ C1] ? panic+0x751/0x751 [ 598.529982][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 598.535975][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 598.541798][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 598.547685][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 598.553502][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 598.559492][ C1] print_other_cpu_stall+0x112d/0x1340 [ 598.564791][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 598.569821][ C1] rcu_sched_clock_irq+0xaec/0x12f0 [ 598.574779][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 598.580845][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 598.585926][ C1] update_process_times+0x198/0x200 [ 598.590915][ C1] tick_sched_timer+0x188/0x240 [ 598.595786][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 598.601149][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 598.606288][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 598.611231][ C1] ? clockevents_program_event+0x236/0x300 [ 598.616975][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 598.622874][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 598.627650][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 598.633465][ C1] sysvec_apic_timer_interrupt+0x95/0xc0 [ 598.638928][ C1] [ 598.641704][ C1] [ 598.644484][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 598.650323][ C1] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 598.656030][ C1] Code: 08 00 74 0c 48 c7 c7 d8 54 8d 86 e8 c1 53 e9 fc 48 83 3d b1 3a c4 01 00 74 2a 48 89 df e8 23 cc 8b fc 66 90 fb bf 01 00 00 00 a2 0f 83 fc 65 8b 05 43 53 39 7b 85 c0 74 03 5b 5d c3 e8 43 67 [ 598.675563][ C1] RSP: 0018:ffffc90000a27bb8 EFLAGS: 00000246 [ 598.681457][ C1] RAX: 0000000000000001 RBX: ffff888116cee900 RCX: dffffc0000000000 [ 598.689273][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 598.697078][ C1] RBP: ffffc90000a27bc0 R08: ffffffff81456dfa R09: fffff52000144fc0 [ 598.704896][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888116cee900 [ 598.712708][ C1] R13: ffff888116ceed20 R14: 0000000000000021 R15: dffffc0000000000 [ 598.720520][ C1] ? get_signal+0x151a/0x1630 [ 598.725032][ C1] ? _raw_spin_unlock_irq+0x41/0x70 [ 598.730065][ C1] get_signal+0x1562/0x1630 [ 598.734408][ C1] arch_do_signal_or_restart+0xbd/0x1680 [ 598.739869][ C1] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 598.746132][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 598.751065][ C1] ? __kasan_check_write+0x14/0x20 [ 598.756009][ C1] ? _copy_from_user+0x96/0xd0 [ 598.760613][ C1] ? restore_altstack+0x274/0x400 [ 598.765471][ C1] ? get_sigframe_size+0x10/0x10 [ 598.770249][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 598.775454][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 598.780748][ C1] exit_to_user_mode_loop+0xa0/0xe0 [ 598.785781][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 598.791080][ C1] syscall_exit_to_user_mode+0x26/0x160 [ 598.796464][ C1] do_syscall_64+0x49/0xb0 [ 598.800709][ C1] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 598.806350][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 598.812079][ C1] RIP: 0033:0x7f63f4b06417 [ 598.816338][ 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 [ 598.835864][ C1] RSP: 002b:00007f63f4ac7238 EFLAGS: 00000246 [ 598.841849][ C1] RAX: 00000000000000ca RBX: 00007f63f4b90308 RCX: 00007f63f4b06419 [ 598.849836][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f63f4b90308 [ 598.857651][ C1] RBP: 00007f63f4b90300 R08: 00007f63f4ac76c0 R09: 00007f63f4ac76c0 [ 598.865554][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f63f4b9030c [ 598.873531][ C1] R13: 0000000000000000 R14: 00007ffe4890dde0 R15: 00007ffe4890dec8 [ 598.881345][ C1] [ 715.489954][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 216s! [ 715.498796][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 211s! [ 715.507662][ C0] Showing busy workqueues and worker pools: [ 715.513508][ C0] workqueue events: flags=0x0 [ 715.517987][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.518032][ C0] pending: vmstat_shepherd, psi_avgs_work [ 715.518077][ C0] workqueue events_unbound: flags=0x2 [ 715.536557][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.536597][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.536642][ C0] workqueue events_power_efficient: flags=0x80 [ 715.557060][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.557104][ C0] pending: neigh_periodic_work [ 715.557131][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 715.557169][ C0] pending: check_lifetime, neigh_periodic_work, gc_worker [ 715.557225][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.589489][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.589535][ C0] pending: vmstat_update [ 715.589564][ C0] workqueue writeback: flags=0x4a [ 715.606231][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.606270][ C0] pending: wb_workfn [ 715.606298][ C0] workqueue kblockd: flags=0x18 [ 715.622046][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.622090][ C0] pending: blk_mq_timeout_work [ 715.622183][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.639958][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.640003][ C0] pending: work_fn [ 715.640029][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.656883][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.656926][ C0] pending: addrconf_verify_work