Warning: Permanently added '10.128.0.113' (ED25519) to the list of known hosts. executing program executing program executing program [ 572.019617][ T30] audit: type=1400 audit(1717967131.715:68): avc: denied { execmem } for pid=837 comm="syz-executor366" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 672.056726][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 672.063505][ C1] (detected by 1, t=10002 jiffies, g=5133, q=202) [ 672.069830][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4295004426-4294994423), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 672.083025][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g5133 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 672.093957][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 672.103766][ C1] rcu: RCU grace-period kthread stack dump: [ 672.109502][ C1] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 672.120092][ C1] Call Trace: [ 672.123209][ C1] [ 672.125994][ C1] __schedule+0xccc/0x1590 [ 672.130240][ C1] ? __sched_text_start+0x8/0x8 [ 672.135011][ C1] ? __kasan_check_write+0x14/0x20 [ 672.139957][ C1] schedule+0x11f/0x1e0 [ 672.143961][ C1] schedule_timeout+0x18c/0x370 [ 672.148645][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 672.153671][ C1] ? console_conditional_schedule+0x30/0x30 [ 672.159399][ C1] ? update_process_times+0x200/0x200 [ 672.164611][ C1] ? prepare_to_swait_event+0x308/0x320 [ 672.169990][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 672.174588][ C1] ? debug_smp_processor_id+0x17/0x20 [ 672.179793][ C1] ? __note_gp_changes+0x4ab/0x920 [ 672.184740][ C1] ? rcu_gp_init+0xc30/0xc30 [ 672.189169][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 672.194200][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 672.198631][ C1] rcu_gp_kthread+0xa4/0x350 [ 672.203054][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 672.207742][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 672.212259][ C1] ? __kasan_check_read+0x11/0x20 [ 672.217123][ C1] ? __kthread_parkme+0xb2/0x200 [ 672.221896][ C1] kthread+0x421/0x510 [ 672.225795][ C1] ? wake_nocb_gp+0x1e0/0x1e0 [ 672.230312][ C1] ? kthread_blkcg+0xd0/0xd0 [ 672.234737][ C1] ret_from_fork+0x1f/0x30 [ 672.238989][ C1] [ 672.241849][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 672.248029][ C1] NMI backtrace for cpu 1 [ 672.252188][ C1] CPU: 1 PID: 849 Comm: syz-executor366 Not tainted 5.15.149-syzkaller-00131-g79bd336c7a94 #0 [ 672.262249][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 672.272143][ C1] Call Trace: [ 672.275273][ C1] [ 672.277955][ C1] dump_stack_lvl+0x151/0x1b7 [ 672.282488][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 672.287937][ C1] dump_stack+0x15/0x17 [ 672.291926][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 672.296701][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 672.302691][ C1] ? panic+0x751/0x751 [ 672.306597][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 672.312497][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 672.318433][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 672.324337][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 672.330060][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 672.336049][ C1] print_other_cpu_stall+0x112d/0x1340 [ 672.341352][ C1] ? try_invoke_on_locked_down_task+0x2a0/0x2a0 [ 672.347418][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 672.352193][ C1] ? __kasan_check_write+0x14/0x20 [ 672.357137][ C1] rcu_sched_clock_irq+0xaec/0x12f0 [ 672.362174][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 672.368159][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 672.373193][ C1] update_process_times+0x198/0x200 [ 672.378230][ C1] tick_sched_timer+0x188/0x240 [ 672.382919][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 672.388297][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 672.393595][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 672.398537][ C1] ? clockevents_program_event+0x236/0x300 [ 672.404180][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 672.410078][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 672.414858][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 672.420581][ C1] sysvec_apic_timer_interrupt+0x95/0xc0 [ 672.426052][ C1] [ 672.428826][ C1] [ 672.431602][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 672.437514][ C1] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 672.443149][ C1] Code: 08 00 74 0c 48 c7 c7 d8 54 8d 86 e8 71 45 e9 fc 48 83 3d b1 2a c4 01 00 74 2a 48 89 df e8 e3 bb 8b fc 66 90 fb bf 01 00 00 00 42 ff 82 fc 65 8b 05 43 43 39 7b 85 c0 74 03 5b 5d c3 e8 43 57 [ 672.462589][ C1] RSP: 0018:ffffc90000a57bb8 EFLAGS: 00000246 [ 672.468489][ C1] RAX: 0000000000000001 RBX: ffff88811608c600 RCX: dffffc0000000000 [ 672.476301][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 672.484112][ C1] RBP: ffffc90000a57bc0 R08: ffffffff81456d9a R09: fffff5200014afc0 [ 672.491924][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811608c600 [ 672.499736][ C1] R13: ffff88811608ca20 R14: 0000000000000021 R15: dffffc0000000000 [ 672.507556][ C1] ? get_signal+0x151a/0x1630 [ 672.512067][ C1] ? _raw_spin_unlock_irq+0x41/0x70 [ 672.517094][ C1] get_signal+0x1562/0x1630 [ 672.521434][ C1] arch_do_signal_or_restart+0xbd/0x1680 [ 672.526986][ C1] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 672.533237][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 672.538186][ C1] ? __kasan_check_write+0x14/0x20 [ 672.543136][ C1] ? _copy_from_user+0x96/0xd0 [ 672.547730][ C1] ? restore_altstack+0x274/0x400 [ 672.552588][ C1] ? get_sigframe_size+0x10/0x10 [ 672.557363][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 672.562573][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 672.567864][ C1] exit_to_user_mode_loop+0xa0/0xe0 [ 672.572898][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 672.578191][ C1] syscall_exit_to_user_mode+0x26/0x160 [ 672.583574][ C1] do_syscall_64+0x49/0xb0 [ 672.587827][ C1] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 672.593468][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 672.599201][ C1] RIP: 0033:0x7f6933e48417 [ 672.603450][ 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 [ 672.622890][ C1] RSP: 002b:00007f6933e09238 EFLAGS: 00000246 [ 672.628790][ C1] RAX: 00000000000000ca RBX: 00007f6933ed2308 RCX: 00007f6933e48419 [ 672.636601][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6933ed2308 [ 672.644412][ C1] RBP: 00007f6933ed2300 R08: 00007f6933e096c0 R09: 00007f6933e096c0 [ 672.652226][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6933ed230c [ 672.660038][ C1] R13: 0000000000000000 R14: 00007ffec7893cc0 R15: 00007ffec7893da8 [ 672.667849][ C1] [ 715.486733][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 142s! [ 715.495628][ C0] Showing busy workqueues and worker pools: [ 715.501373][ C0] workqueue events: flags=0x0 [ 715.505996][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.506036][ C0] pending: psi_avgs_work [ 715.506059][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.506092][ C0] pending: vmstat_shepherd [ 715.506115][ C0] workqueue events_unbound: flags=0x2 [ 715.535457][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.535499][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.535545][ C0] workqueue events_power_efficient: flags=0x80 [ 715.555862][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 715.555901][ C0] pending: neigh_periodic_work, gc_worker, check_lifetime [ 715.555951][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.555984][ C0] pending: neigh_periodic_work [ 715.556006][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.588350][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.588390][ C0] pending: vmstat_update [ 715.588419][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.588452][ C0] pending: vmstat_update [ 715.588473][ C0] workqueue writeback: flags=0x4a [ 715.617088][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.617122][ C0] pending: wb_workfn [ 715.617146][ C0] workqueue kblockd: flags=0x18 [ 715.632870][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.632907][ C0] pending: blk_mq_timeout_work [ 715.632935][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.650677][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.650714][ C0] pending: work_fn [ 715.650735][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.667513][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.667551][ C0] pending: addrconf_verify_work