Warning: Permanently added '10.128.0.29' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 207.120208][ T30] audit: type=1400 audit(1737614633.729:66): avc: denied { execmem } for pid=472 comm="syz-executor434" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 307.139206][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 307.145988][ C1] (detected by 1, t=10002 jiffies, g=2381, q=192) [ 307.152334][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10001 (4294967932-4294957931), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 307.165525][ C1] rcu: rcu_preempt kthread starved for 10002 jiffies! g2381 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 307.176445][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 307.186253][ C1] rcu: RCU grace-period kthread stack dump: [ 307.191991][ C1] task:rcu_preempt state:R running task stack:28264 pid: 14 ppid: 2 flags:0x00004000 [ 307.202579][ C1] Call Trace: [ 307.205712][ C1] [ 307.208484][ C1] __schedule+0xccc/0x1590 [ 307.212729][ C1] ? release_firmware_map_entry+0x190/0x190 [ 307.218458][ C1] ? del_timer_sync+0x1bc/0x230 [ 307.223253][ C1] ? __kasan_check_write+0x14/0x20 [ 307.228291][ C1] schedule+0x11f/0x1e0 [ 307.232282][ C1] schedule_timeout+0x18c/0x370 [ 307.236966][ C1] ? __kasan_check_write+0x14/0x20 [ 307.241914][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 307.247206][ C1] ? console_conditional_schedule+0x30/0x30 [ 307.252937][ C1] ? update_process_times+0x200/0x200 [ 307.258144][ C1] ? prepare_to_swait_event+0x308/0x320 [ 307.263528][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 307.268127][ C1] ? dump_blkd_tasks+0x7e0/0x7e0 [ 307.272904][ C1] ? rcu_gp_init+0xc30/0xc30 [ 307.277326][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 307.282359][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 307.286786][ C1] rcu_gp_kthread+0xa4/0x350 [ 307.291214][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 307.295899][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 307.300418][ C1] ? __kasan_check_read+0x11/0x20 [ 307.305279][ C1] ? __kthread_parkme+0xb2/0x200 [ 307.310048][ C1] kthread+0x421/0x510 [ 307.313952][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 307.318464][ C1] ? kthread_blkcg+0xd0/0xd0 [ 307.322895][ C1] ret_from_fork+0x1f/0x30 [ 307.327145][ C1] [ 307.330010][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 307.336186][ C1] NMI backtrace for cpu 1 [ 307.340346][ C1] CPU: 1 PID: 484 Comm: syz-executor434 Not tainted 5.15.176-syzkaller-00972-g829d9f138569 #0 [ 307.350407][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 307.360301][ C1] Call Trace: [ 307.363424][ C1] [ 307.366111][ C1] dump_stack_lvl+0x151/0x1c0 [ 307.370631][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 307.376097][ C1] dump_stack+0x15/0x20 [ 307.380089][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 307.384864][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 307.390872][ C1] ? panic+0x760/0x760 [ 307.394754][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 307.400660][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 307.406471][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 307.412374][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 307.418104][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 307.424091][ C1] print_other_cpu_stall+0x112d/0x1340 [ 307.429386][ C1] ? try_invoke_on_locked_down_task+0x2a0/0x2a0 [ 307.435464][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 307.440239][ C1] ? __kasan_check_write+0x14/0x20 [ 307.445181][ C1] rcu_sched_clock_irq+0xaec/0x12f0 [ 307.450219][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 307.456204][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 307.461241][ C1] update_process_times+0x198/0x200 [ 307.466271][ C1] tick_sched_timer+0x188/0x240 [ 307.471050][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 307.476430][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 307.481464][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 307.486409][ C1] ? clockevents_program_event+0x22f/0x300 [ 307.492052][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 307.497954][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 307.502730][ C1] __sysvec_apic_timer_interrupt+0xfb/0x3f0 [ 307.508453][ C1] sysvec_apic_timer_interrupt+0xa4/0xc0 [ 307.513931][ C1] [ 307.516700][ C1] [ 307.519478][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 307.525303][ C1] RIP: 0010:fpu__clear_user_states+0x152/0x210 [ 307.531285][ C1] Code: 60 53 26 86 e8 6f 26 84 00 48 8b 1d 58 a8 f7 04 0f 1f 44 00 00 e8 4e c1 41 00 0f b6 c3 48 c7 c7 00 43 26 86 31 d2 48 0f ae 2f aa 00 00 00 e8 34 c1 41 00 48 c7 c0 60 bb ad 86 48 c1 e8 03 42 [ 307.550724][ C1] RSP: 0018:ffffc90000a47c68 EFLAGS: 00000246 [ 307.556621][ C1] RAX: 0000000000000007 RBX: 0000000000000007 RCX: ffff88810cd92780 [ 307.564437][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff86264300 [ 307.572255][ C1] RBP: ffffc90000a47c90 R08: ffffffff812eaa4e R09: fffff52000148fc6 [ 307.580067][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 307.587866][ C1] R13: ffff88810cd936c0 R14: 0000000000000007 R15: ffffc90000a47fe8 [ 307.595686][ C1] ? fpu__clear_user_states+0x7e/0x210 [ 307.600983][ C1] ? fpu__clear_user_states+0x142/0x210 [ 307.606355][ C1] arch_do_signal_or_restart+0x1314/0x1680 [ 307.612004][ C1] ? get_sigframe_size+0x10/0x10 [ 307.616769][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 307.621982][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 307.627274][ C1] exit_to_user_mode_loop+0xa0/0xe0 [ 307.632308][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 307.637602][ C1] syscall_exit_to_user_mode+0x26/0x160 [ 307.642984][ C1] do_syscall_64+0x47/0xb0 [ 307.647252][ C1] ? clear_bhb_loop+0x35/0x90 [ 307.651763][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 307.657477][ C1] RIP: 0033:0x7f248ae83350 [ 307.661754][ C1] Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d da 20 03 00 e8 05 11 fb ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 [ 307.681170][ C1] RSP: 002b:00007f248ae1dc78 EFLAGS: 00000246 [ 307.687103][ C1] RAX: 0000000000000000 RBX: 00007f248aee7308 RCX: 00007f248ae5d419 [ 307.694883][ C1] RDX: 00007f248ae1dc80 RSI: 00007f248ae1ddb0 RDI: 0000000000000021 [ 307.702698][ C1] RBP: 00007f248aee7300 R08: 00007f248ae1e6c0 R09: 00007f248ae1e6c0 [ 307.710510][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f248aee730c [ 307.718318][ C1] R13: 0000000000000000 R14: 00007ffc8c5fd750 R15: 00007ffc8c5fd838 [ 307.726136][ C1] [ 428.789161][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 221s! [ 428.798028][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 221s! [ 428.806289][ C0] Showing busy workqueues and worker pools: [ 428.812009][ C0] workqueue events: flags=0x0 [ 428.816522][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.816561][ C0] pending: psi_avgs_work, vmstat_shepherd [ 428.816601][ C0] workqueue events_unbound: flags=0x2 [ 428.835083][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 428.835119][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 428.835176][ C0] workqueue events_power_efficient: flags=0x80 [ 428.855480][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.855521][ C0] pending: neigh_periodic_work, check_lifetime [ 428.855555][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.855590][ C0] pending: neigh_periodic_work, gc_worker [ 428.855624][ C0] workqueue mm_percpu_wq: flags=0x8 [ 428.887785][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.887824][ C0] pending: vmstat_update [ 428.887848][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.887881][ C0] pending: vmstat_update [ 428.887903][ C0] workqueue writeback: flags=0x4a [ 428.916430][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 428.916465][ C0] pending: wb_workfn [ 428.916608][ C0] workqueue dm_bufio_cache: flags=0x8 [ 428.932904][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.932945][ C0] pending: work_fn [ 428.933057][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 428.949873][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 428.949914][ C0] pending: addrconf_verify_work