Warning: Permanently added '10.128.0.146' (ED25519) to the list of known hosts. executing program executing program executing program [ 490.129065][ T28] audit: type=1400 audit(1714258309.843:66): avc: denied { execmem } for pid=756 comm="syz-executor143" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 590.167876][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 590.174681][ C0] (detected by 0, t=10002 jiffies, g=4309, q=132 ncpus=2) [ 590.181688][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294996233-4294986230), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 590.194889][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g4309 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 590.205818][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 590.215707][ C0] rcu: RCU grace-period kthread stack dump: [ 590.221450][ C0] task:rcu_preempt state:R running task stack:27720 pid:14 ppid:2 flags:0x00004000 [ 590.232042][ C0] Call Trace: [ 590.235164][ C0] [ 590.237931][ C0] __schedule+0xca7/0x1550 [ 590.242188][ C0] ? __sched_text_start+0x8/0x8 [ 590.246871][ C0] ? __kasan_check_write+0x14/0x20 [ 590.251817][ C0] schedule+0xc3/0x180 [ 590.255727][ C0] schedule_timeout+0x18c/0x380 [ 590.260410][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 590.265471][ C0] ? console_conditional_schedule+0x10/0x10 [ 590.271172][ C0] ? update_process_times+0x1b0/0x1b0 [ 590.276376][ C0] ? prepare_to_swait_event+0x308/0x320 [ 590.281764][ C0] rcu_gp_fqs_loop+0x2ed/0x1060 [ 590.286445][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 590.291488][ C0] ? rcu_gp_init+0xc7f/0xf80 [ 590.295906][ C0] ? rcu_gp_init+0xf80/0xf80 [ 590.300333][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 590.306061][ C0] ? finish_swait+0x17d/0x1b0 [ 590.310576][ C0] rcu_gp_kthread+0xa3/0x390 [ 590.315002][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 590.320468][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 590.325506][ C0] ? __kasan_check_read+0x11/0x20 [ 590.330449][ C0] ? __kthread_parkme+0x12d/0x180 [ 590.335314][ C0] kthread+0x26d/0x300 [ 590.339217][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 590.344683][ C0] ? kthread_blkcg+0xd0/0xd0 [ 590.349110][ C0] ret_from_fork+0x1f/0x30 [ 590.353364][ C0] [ 590.356226][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 590.362403][ C0] CPU: 0 PID: 768 Comm: syz-executor143 Not tainted 6.1.75-syzkaller-00069-gfa87a072a7fc #0 [ 590.372282][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 590.382185][ C0] RIP: 0010:copy_user_enhanced_fast_string+0x3/0x40 [ 590.388623][ C0] Code: 07 48 ff c6 48 ff c7 ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb <83> fa 40 72 38 89 d1 f3 a4 31 c0 0f 01 ca c3 89 ca eb 0a 66 2e 0f [ 590.408138][ C0] RSP: 0018:ffffc900020c7998 EFLAGS: 00040256 [ 590.414029][ C0] RAX: ffffffff81314601 RBX: 00007f68df66e010 RCX: ffffffff8131465c [ 590.421845][ C0] RDX: 0000000000000030 RSI: ffffc900020c7a40 RDI: 00007f68df66e010 [ 590.429654][ C0] RBP: ffffc900020c7b70 R08: dffffc0000000000 R09: fffff52000418f4e [ 590.437464][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000418f48 [ 590.445280][ C0] R13: 0000000000000340 R14: ffffc900020c7a40 R15: dffffc0000000000 [ 590.453086][ C0] FS: 00007f68df66e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 590.461860][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 590.468277][ C0] CR2: 00007f68df66de40 CR3: 000000010f31d000 CR4: 00000000003506b0 [ 590.476092][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 590.483899][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 590.491709][ C0] Call Trace: [ 590.494834][ C0] [ 590.497522][ C0] ? show_regs+0x58/0x60 [ 590.501603][ C0] ? dump_cpu_task+0x3c/0x70 [ 590.506029][ C0] ? rcu_check_gp_kthread_starvation+0x1d1/0x240 [ 590.512190][ C0] ? _find_next_bit+0x126/0x130 [ 590.516889][ C0] ? print_other_cpu_stall+0x1140/0x1300 [ 590.522344][ C0] ? update_blocked_averages+0x1280/0x1280 [ 590.527987][ C0] ? print_cpu_stall+0x590/0x590 [ 590.532760][ C0] ? acct_account_cputime+0x1c2/0x2c0 [ 590.537973][ C0] ? rcu_sched_clock_irq+0xaeb/0x1330 [ 590.543182][ C0] ? rcu_boost_kthread_setaffinity+0x5a0/0x5a0 [ 590.549171][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 590.554299][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 590.559724][ C0] ? update_process_times+0x149/0x1b0 [ 590.564890][ C0] ? tick_sched_timer+0x188/0x240 [ 590.569751][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 590.575128][ C0] ? __hrtimer_run_queues+0x41a/0xad0 [ 590.580361][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 590.585284][ C0] ? clockevents_program_event+0x22f/0x300 [ 590.590931][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 590.596831][ C0] ? hrtimer_interrupt+0x40c/0xaa0 [ 590.601785][ C0] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 590.607677][ C0] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 590.613752][ C0] [ 590.616532][ C0] [ 590.619318][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 590.625298][ C0] ? copy_fpstate_to_sigframe+0x901/0xba0 [ 590.630855][ C0] ? copy_fpstate_to_sigframe+0x95c/0xba0 [ 590.636414][ C0] ? copy_user_enhanced_fast_string+0x3/0x40 [ 590.642221][ C0] ? copy_fpstate_to_sigframe+0x96c/0xba0 [ 590.647784][ C0] ? copy_fpstate_to_sigframe+0x1b8/0xba0 [ 590.653329][ C0] ? fpregs_set+0x7a0/0x7a0 [ 590.657671][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 590.663314][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 590.669304][ C0] ? get_signal+0x12af/0x1820 [ 590.673813][ C0] ? _raw_spin_unlock_irq+0x48/0x70 [ 590.678846][ C0] ? fpu__alloc_mathframe+0xc3/0x150 [ 590.683969][ C0] get_sigframe+0x378/0x4b0 [ 590.688313][ C0] ? restore_sigcontext+0x700/0x700 [ 590.693339][ C0] ? ptrace_notify+0x350/0x350 [ 590.697940][ C0] ? __kasan_check_write+0x14/0x20 [ 590.702892][ C0] arch_do_signal_or_restart+0x2ac/0x16f0 [ 590.708577][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 590.713498][ C0] ? do_sigaltstack+0x3f9/0x630 [ 590.718187][ C0] ? get_sigframe_size+0x10/0x10 [ 590.722957][ C0] ? restore_altstack+0x107/0x150 [ 590.727819][ C0] ? __ia32_sys_sigaltstack+0x260/0x260 [ 590.733201][ C0] ? sched_clock_cpu+0x71/0x2b0 [ 590.737884][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 590.743191][ C0] exit_to_user_mode_loop+0x74/0xa0 [ 590.748216][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 590.753505][ C0] syscall_exit_to_user_mode+0x26/0x140 [ 590.758892][ C0] do_syscall_64+0x49/0xb0 [ 590.763141][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 590.768790][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 590.774511][ C0] RIP: 0033:0x7f68df6ad417 [ 590.778763][ C0] 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 [ 590.798209][ C0] RSP: 002b:00007f68df66e238 EFLAGS: 00000246 [ 590.804118][ C0] RAX: 00000000000000ca RBX: 00007f68df737308 RCX: 00007f68df6ad419 [ 590.811914][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f68df737308 [ 590.819724][ C0] RBP: 00007f68df737300 R08: 00007f68df66e6c0 R09: 00007f68df66e6c0 [ 590.827536][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f68df73730c [ 590.835347][ C0] R13: 0000000000000000 R14: 00007fff61ba9c80 R15: 00007fff61ba9d68 [ 590.843165][ C0] [ 715.527841][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 224s! [ 715.536584][ C0] Showing busy workqueues and worker pools: [ 715.542323][ C0] workqueue events: flags=0x0 [ 715.546836][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.546882][ C0] pending: psi_avgs_work [ 715.546922][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.546962][ C0] pending: vmstat_shepherd [ 715.546997][ C0] workqueue events_unbound: flags=0x2 [ 715.576130][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.576265][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.576320][ C0] workqueue events_power_efficient: flags=0x80 [ 715.596703][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 715.596757][ C0] pending: neigh_managed_work, neigh_managed_work, neigh_periodic_work, neigh_periodic_work, check_lifetime [ 715.596879][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.596920][ C0] pending: gc_worker [ 715.596954][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.632704][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.632759][ C0] pending: vmstat_update [ 715.632800][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.632840][ C0] pending: vmstat_update [ 715.632875][ C0] workqueue writeback: flags=0x4a [ 715.661591][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.661636][ C0] pending: wb_workfn [ 715.661666][ C0] workqueue kblockd: flags=0x18 [ 715.677484][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.677545][ C0] pending: blk_mq_timeout_work [ 715.677727][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.695495][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.695546][ C0] pending: work_fn [ 715.695624][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.712452][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.712498][ C0] pending: addrconf_verify_work