Warning: Permanently added '10.128.0.27' (ED25519) to the list of known hosts. executing program executing program [ 286.677316][ T30] audit: type=1400 audit(1741718366.551:66): avc: denied { execmem } for pid=552 comm="syz-executor291" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 386.716358][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 386.723141][ C0] (detected by 0, t=10002 jiffies, g=2829, q=308) [ 386.729466][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294975888-4294965885), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 386.742674][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g2829 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 386.754041][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 386.763882][ C0] rcu: RCU grace-period kthread stack dump: [ 386.769580][ C0] task:rcu_preempt state:R running task stack:28264 pid: 14 ppid: 2 flags:0x00004000 [ 386.780166][ C0] Call Trace: [ 386.783278][ C0] [ 386.786151][ C0] __schedule+0xccc/0x1590 [ 386.790402][ C0] ? release_firmware_map_entry+0x190/0x190 [ 386.796159][ C0] ? __kasan_check_write+0x14/0x20 [ 386.801076][ C0] schedule+0x11f/0x1e0 [ 386.805069][ C0] schedule_timeout+0x18c/0x370 [ 386.809771][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 386.814786][ C0] ? console_conditional_schedule+0x30/0x30 [ 386.820513][ C0] ? update_process_times+0x200/0x200 [ 386.825725][ C0] ? prepare_to_swait_event+0x308/0x320 [ 386.831105][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 386.835703][ C0] ? debug_smp_processor_id+0x17/0x20 [ 386.840912][ C0] ? __note_gp_changes+0x4ab/0x920 [ 386.845859][ C0] ? rcu_gp_init+0xc30/0xc30 [ 386.850284][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 386.855319][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 386.859744][ C0] rcu_gp_kthread+0xa4/0x350 [ 386.864172][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 386.868860][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 386.873380][ C0] ? __kasan_check_read+0x11/0x20 [ 386.878234][ C0] ? __kthread_parkme+0xb2/0x200 [ 386.883008][ C0] kthread+0x421/0x510 [ 386.886913][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 386.891427][ C0] ? kthread_blkcg+0xd0/0xd0 [ 386.895852][ C0] ret_from_fork+0x1f/0x30 [ 386.900106][ C0] [ 386.902968][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 386.909147][ C0] Sending NMI from CPU 0 to CPUs 1: [ 386.914201][ C1] NMI backtrace for cpu 1 [ 386.914211][ C1] CPU: 1 PID: 565 Comm: syz-executor291 Not tainted 5.15.178-syzkaller-00013-g7d1f9b5c2ff5 #0 [ 386.914228][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 386.914239][ C1] RIP: 0010:native_apic_msr_write+0x39/0x50 [ 386.914265][ C1] Code: 74 05 83 ff 30 75 12 5d c3 81 ff d0 00 00 00 74 f6 81 ff e0 00 00 00 74 ee c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 eb d9 89 f6 31 d2 e8 9a 75 52 01 5d c3 0f 1f 84 00 00 00 00 [ 386.914280][ C1] RSP: 0018:ffffc90000a57788 EFLAGS: 00000046 [ 386.914294][ C1] RAX: 000000000000003e RBX: ffffffff862669e8 RCX: 0000000000000838 [ 386.914304][ C1] RDX: 0000000000000000 RSI: 000000000000003e RDI: 0000000000000838 [ 386.914314][ C1] RBP: ffffc90000a57788 R08: ffffffff8163dc90 R09: ffffffff8163d88d [ 386.914328][ C1] R10: 0000000000000002 R11: ffff88810e7a2780 R12: 0000000000000000 [ 386.914338][ C1] R13: dffffc0000000000 R14: 000000000000003e R15: dffffc0000000000 [ 386.914349][ C1] FS: 00007f454dfa66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 386.914362][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 386.914373][ C1] CR2: 00007f454dfa5d80 CR3: 00000001224a0000 CR4: 00000000003506a0 [ 386.914387][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 386.914395][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 386.914404][ C1] Call Trace: [ 386.914410][ C1] [ 386.914415][ C1] ? show_regs+0x58/0x60 [ 386.914431][ C1] ? nmi_cpu_backtrace+0x29f/0x300 [ 386.914446][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 386.914461][ C1] ? native_apic_msr_write+0x39/0x50 [ 386.914477][ C1] ? native_apic_msr_write+0x39/0x50 [ 386.914492][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 386.914507][ C1] ? nmi_handle+0xa8/0x280 [ 386.914522][ C1] ? native_apic_msr_write+0x39/0x50 [ 386.914537][ C1] ? default_do_nmi+0x69/0x160 [ 386.914553][ C1] ? exc_nmi+0xad/0x100 [ 386.914566][ C1] ? end_repeat_nmi+0x16/0x31 [ 386.914582][ C1] ? clockevents_program_event+0x7d/0x300 [ 386.914598][ C1] ? clockevents_program_min_delta+0x180/0x440 [ 386.914614][ C1] ? native_apic_msr_write+0x39/0x50 [ 386.914630][ C1] ? native_apic_msr_write+0x39/0x50 [ 386.914646][ C1] ? native_apic_msr_write+0x39/0x50 [ 386.914661][ C1] [ 386.914666][ C1] [ 386.914670][ C1] lapic_next_event+0x5f/0x70 [ 386.914685][ C1] clockevents_program_min_delta+0x1b4/0x440 [ 386.914702][ C1] clockevents_program_event+0x217/0x300 [ 386.914718][ C1] tick_program_event+0x9f/0x120 [ 386.914733][ C1] hrtimer_reprogram+0x389/0x430 [ 386.914749][ C1] hrtimer_start_range_ns+0xa01/0xb70 [ 386.914765][ C1] common_hrtimer_rearm+0x100/0x110 [ 386.914779][ C1] posixtimer_rearm+0x1a7/0x3f0 [ 386.914794][ C1] ? __dequeue_signal+0x384/0x600 [ 386.914810][ C1] ? alarmtimer_resume+0x60/0x60 [ 386.914826][ C1] ? __kasan_check_write+0x14/0x20 [ 386.914842][ C1] ? recalc_sigpending+0x1a5/0x230 [ 386.914857][ C1] dequeue_signal+0x1ed/0x520 [ 386.914876][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 386.914889][ C1] ? unhandled_signal+0x150/0x150 [ 386.914905][ C1] get_signal+0x7cf/0x1630 [ 386.914922][ C1] arch_do_signal_or_restart+0xbd/0x1680 [ 386.914937][ C1] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 386.914952][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 386.914966][ C1] ? __kasan_check_write+0x14/0x20 [ 386.914981][ C1] ? _copy_from_user+0x96/0xd0 [ 386.914996][ C1] ? restore_altstack+0x274/0x400 [ 386.915012][ C1] ? get_sigframe_size+0x10/0x10 [ 386.915026][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 386.915043][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 386.915058][ C1] exit_to_user_mode_loop+0xa0/0xe0 [ 386.915073][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 386.915088][ C1] syscall_exit_to_user_mode+0x26/0x160 [ 386.915104][ C1] do_syscall_64+0x47/0xb0 [ 386.915118][ C1] ? clear_bhb_loop+0x35/0x90 [ 386.915132][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 386.915147][ C1] RIP: 0033:0x7f454dfe5ed7 [ 386.915168][ 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 [ 386.915179][ C1] RSP: 002b:00007f454dfa6178 EFLAGS: 00000246 [ 386.915191][ C1] RAX: 00000000000000ca RBX: 00007f454e070308 RCX: 00007f454dfe5ed9 [ 386.915202][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f454e070308 [ 386.915211][ C1] RBP: 00007f454e070300 R08: 00007f454dfa66c0 R09: 00007f454dfa66c0 [ 386.915222][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f454e07030c [ 386.915232][ C1] R13: 0000000000000000 R14: 00007fffd0e8af10 R15: 00007fffd0e8aff8 [ 386.915244][ C1] [ 572.166316][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 285s! [ 572.175042][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 285s! [ 572.183733][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 285s! [ 572.191977][ C0] Showing busy workqueues and worker pools: [ 572.197702][ C0] workqueue events: flags=0x0 [ 572.202221][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 572.202274][ C0] pending: vmstat_shepherd, psi_avgs_work [ 572.202317][ C0] workqueue events_unbound: flags=0x2 [ 572.220793][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 572.220834][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 572.220879][ C0] workqueue events_power_efficient: flags=0x80 [ 572.241187][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 572.241229][ C0] pending: neigh_periodic_work, neigh_periodic_work, gc_worker [ 572.241277][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.241313][ C0] pending: check_lifetime [ 572.241341][ C0] workqueue mm_percpu_wq: flags=0x8 [ 572.273505][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.273549][ C0] pending: vmstat_update [ 572.273578][ C0] workqueue writeback: flags=0x4a [ 572.290264][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 572.290302][ C0] pending: wb_workfn [ 572.290426][ C0] workqueue dm_bufio_cache: flags=0x8 [ 572.307082][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.307126][ C0] pending: work_fn [ 572.307206][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 572.324010][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 572.324053][ C0] pending: addrconf_verify_work