Warning: Permanently added '10.128.0.25' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 422.211110][ T30] audit: type=1400 audit(1705055220.402:66): avc: denied { execmem } for pid=687 comm="syz-executor237" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 522.249778][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 522.256567][ C1] (detected by 1, t=10002 jiffies, g=3777, q=192) [ 522.262902][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294989434-4294979431), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 522.276092][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g3777 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 522.287027][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 522.296836][ C1] rcu: RCU grace-period kthread stack dump: [ 522.302563][ C1] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 522.313238][ C1] Call Trace: [ 522.316363][ C1] [ 522.319141][ C1] __schedule+0xcbe/0x1580 [ 522.323513][ C1] ? __sched_text_start+0x8/0x8 [ 522.328205][ C1] schedule+0x11f/0x1e0 [ 522.332190][ C1] schedule_timeout+0x18c/0x370 [ 522.336874][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 522.341916][ C1] ? console_conditional_schedule+0x30/0x30 [ 522.347642][ C1] ? update_process_times+0x200/0x200 [ 522.352847][ C1] ? prepare_to_swait_event+0x308/0x320 [ 522.358225][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 522.362828][ C1] ? debug_smp_processor_id+0x17/0x20 [ 522.368034][ C1] ? __note_gp_changes+0x4ab/0x920 [ 522.372982][ C1] ? rcu_gp_init+0xc30/0xc30 [ 522.377406][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 522.382438][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 522.386866][ C1] rcu_gp_kthread+0xa4/0x350 [ 522.391293][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 522.395981][ C1] ? rcu_barrier_callback+0x50/0x50 [ 522.401017][ C1] ? __kasan_check_read+0x11/0x20 [ 522.405883][ C1] ? __kthread_parkme+0xb2/0x200 [ 522.410676][ C1] kthread+0x421/0x510 [ 522.414559][ C1] ? rcu_barrier_callback+0x50/0x50 [ 522.419588][ C1] ? kthread_blkcg+0xd0/0xd0 [ 522.424013][ C1] ret_from_fork+0x1f/0x30 [ 522.428269][ C1] [ 522.431131][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 522.437292][ C1] NMI backtrace for cpu 1 [ 522.441461][ C1] CPU: 1 PID: 701 Comm: syz-executor237 Not tainted 5.15.145-syzkaller-00162-gea2937bdd12f #0 [ 522.451527][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 522.461421][ C1] Call Trace: [ 522.464545][ C1] [ 522.467325][ C1] dump_stack_lvl+0x151/0x1b7 [ 522.471841][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 522.477395][ C1] dump_stack+0x15/0x17 [ 522.481380][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 522.486157][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 522.492145][ C1] ? panic+0x751/0x751 [ 522.496051][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 522.501957][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 522.507768][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 522.513680][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 522.519397][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 522.525387][ C1] print_other_cpu_stall+0x112d/0x1340 [ 522.530683][ C1] ? copy_fpstate_to_sigframe+0x853/0x9a0 [ 522.536239][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 522.541009][ C1] ? __set_current_blocked+0x2a5/0x2f0 [ 522.546300][ C1] ? fpregs_set+0x6f0/0x6f0 [ 522.550648][ C1] ? irqentry_exit+0x30/0x40 [ 522.555070][ C1] rcu_sched_clock_irq+0xaec/0x12f0 [ 522.560111][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 522.566093][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 522.571125][ C1] update_process_times+0x198/0x200 [ 522.576161][ C1] tick_sched_timer+0x188/0x240 [ 522.580844][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 522.586315][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 522.591348][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 522.596297][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 522.602198][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 522.606977][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 522.612699][ C1] sysvec_apic_timer_interrupt+0x44/0xc0 [ 522.618973][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 522.624763][ C1] RIP: 0033:0x7f360537bb47 [ 522.629017][ C1] Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d b2 08 09 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 93 d9 fd ff 0f 1f 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 31 f6 31 ff e9 07 e3 02 00 0f 1f 80 00 [ 522.648461][ C1] RSP: 002b:00007f360533dc48 EFLAGS: 00000206 [ 522.654355][ C1] RAX: 00000000000002b6 RBX: 00007f360533ddb0 RCX: 00007f360537bb47 [ 522.662168][ C1] RDX: 00007f360533dc80 RSI: 00007f360533ddb0 RDI: 0000000000000021 [ 522.669980][ C1] RBP: 0000000000000000 R08: 00007f360533e6c0 R09: 00007f360533e6c0 [ 522.677788][ C1] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f360540730c [ 522.685602][ C1] R13: 0000000000000000 R14: 00007ffc00d66660 R15: 00007ffc00d66748 [ 522.693420][ C1] [ 572.239791][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 149s! [ 572.248521][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 144s! [ 572.257396][ C0] Showing busy workqueues and worker pools: [ 572.263115][ C0] workqueue events: flags=0x0 [ 572.267614][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.267656][ C0] pending: psi_avgs_work [ 572.267686][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.267719][ C0] pending: vmstat_shepherd [ 572.267777][ C0] workqueue events_unbound: flags=0x2 [ 572.296910][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 572.296948][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 572.297083][ C0] workqueue events_power_efficient: flags=0x80 [ 572.317532][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.317577][ C0] pending: neigh_periodic_work [ 572.317675][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 572.317708][ C0] pending: gc_worker, neigh_periodic_work, check_lifetime [ 572.317811][ C0] workqueue mm_percpu_wq: flags=0x8 [ 572.350443][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.350492][ C0] pending: vmstat_update [ 572.350519][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.350553][ C0] pending: vmstat_update [ 572.350575][ C0] workqueue writeback: flags=0x4a [ 572.379275][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 572.379319][ C0] pending: wb_workfn [ 572.379414][ C0] workqueue kblockd: flags=0x18 [ 572.395181][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 572.395231][ C0] pending: blk_mq_timeout_work [ 572.395366][ C0] workqueue dm_bufio_cache: flags=0x8 [ 572.413162][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.413213][ C0] pending: work_fn [ 572.413325][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 572.430683][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 572.430733][ C0] pending: addrconf_verify_work