Warning: Permanently added '10.128.1.73' (ED25519) to the list of known hosts. executing program executing program executing program [ 139.034036][ T28] audit: type=1400 audit(1732195625.515:66): avc: denied { execmem } for pid=405 comm="syz-executor199" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 239.051552][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 239.058386][ C0] (detected by 0, t=10002 jiffies, g=1673, q=168 ncpus=2) [ 239.065404][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10001 (4294961116-4294951115), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 239.078705][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g1673 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 239.089640][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 239.099447][ C0] rcu: RCU grace-period kthread stack dump: [ 239.105198][ C0] task:rcu_preempt state:R running task stack:28008 pid:14 ppid:2 flags:0x00004000 [ 239.115782][ C0] Call Trace: [ 239.118889][ C0] [ 239.121670][ C0] __schedule+0xcb5/0x1560 [ 239.125921][ C0] ? xfd_validate_state+0x6f/0x170 [ 239.130871][ C0] ? __sched_text_start+0x8/0x8 [ 239.135554][ C0] ? del_timer_sync+0x1bc/0x230 [ 239.140256][ C0] schedule+0xc3/0x180 [ 239.144147][ C0] schedule_timeout+0x18c/0x380 [ 239.148831][ C0] ? __kasan_check_write+0x14/0x20 [ 239.153781][ C0] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 239.159080][ C0] ? console_conditional_schedule+0x10/0x10 [ 239.164804][ C0] ? update_process_times+0x1b0/0x1b0 [ 239.170010][ C0] ? prepare_to_swait_event+0x308/0x320 [ 239.175396][ C0] rcu_gp_fqs_loop+0x2ed/0x10a0 [ 239.180078][ C0] ? dump_blkd_tasks+0x7f0/0x7f0 [ 239.184853][ C0] ? rcu_gp_init+0xfa0/0xfa0 [ 239.189282][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 239.194925][ C0] ? finish_swait+0x17d/0x1b0 [ 239.199435][ C0] rcu_gp_kthread+0xa3/0x3a0 [ 239.203860][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 239.209329][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 239.214362][ C0] ? __kasan_check_read+0x11/0x20 [ 239.219220][ C0] ? __kthread_parkme+0x12d/0x180 [ 239.224102][ C0] kthread+0x26d/0x300 [ 239.227989][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 239.233455][ C0] ? kthread_blkcg+0xd0/0xd0 [ 239.237882][ C0] ret_from_fork+0x1f/0x30 [ 239.242140][ C0] [ 239.245014][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 239.251179][ C0] CPU: 0 PID: 413 Comm: syz-executor199 Not tainted 6.1.112-syzkaller-00026-g51bee181735e #0 [ 239.261140][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 239.271058][ C0] RIP: 0010:clear_user_erms+0xe/0x10 [ 239.276161][ C0] Code: ab 83 e2 07 74 04 89 d1 f3 aa 31 c0 c3 48 c1 e1 03 83 e2 07 48 01 d1 eb f1 0f 1f 00 48 83 f9 40 0f 82 76 ff ff ff f3 aa 31 c0 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 48 89 75 [ 239.295602][ C0] RSP: 0018:ffffc90001297998 EFLAGS: 00040246 [ 239.301502][ C0] RAX: 0000000000000000 RBX: 00007fffffffecbc RCX: 0000000000000000 [ 239.309311][ C0] RDX: 0000000000000000 RSI: 00007efce2b2ae40 RDI: 00007efce2b2b080 [ 239.317125][ C0] RBP: ffffc90001297b70 R08: ffffffff81316d1c R09: ffffed102232bca9 [ 239.324936][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811195e540 [ 239.332749][ C0] R13: ffff88811195f4d0 R14: 00007efce2b2ae40 R15: dffffc0000000000 [ 239.340564][ C0] FS: 00007efce2b2b6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 239.349322][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 239.355752][ C0] CR2: 00007efce2b2ae40 CR3: 00000001245ac000 CR4: 00000000003506b0 [ 239.363684][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 239.371490][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 239.379301][ C0] Call Trace: [ 239.382423][ C0] [ 239.385114][ C0] ? show_regs+0x58/0x60 [ 239.389192][ C0] ? dump_cpu_task+0x3c/0x70 [ 239.393620][ C0] ? rcu_check_gp_kthread_starvation+0x1d1/0x240 [ 239.399781][ C0] ? _find_next_bit+0x126/0x130 [ 239.404581][ C0] ? print_other_cpu_stall+0x1140/0x1300 [ 239.410054][ C0] ? print_cpu_stall+0x590/0x590 [ 239.414822][ C0] ? acct_account_cputime+0x1c2/0x2c0 [ 239.420036][ C0] ? rcu_sched_clock_irq+0xb19/0x1350 [ 239.425240][ C0] ? rcu_boost_kthread_setaffinity+0x590/0x590 [ 239.431227][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 239.436260][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 239.441641][ C0] ? update_process_times+0x149/0x1b0 [ 239.446855][ C0] ? tick_sched_timer+0x188/0x240 [ 239.451707][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 239.457093][ C0] ? __hrtimer_run_queues+0x41a/0xad0 [ 239.462302][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 239.467247][ C0] ? clockevents_program_event+0x22f/0x300 [ 239.472885][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 239.478792][ C0] ? hrtimer_interrupt+0x40c/0xaa0 [ 239.483742][ C0] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 239.489641][ C0] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 239.495281][ C0] [ 239.498056][ C0] [ 239.500834][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 239.506824][ C0] ? copy_fpstate_to_sigframe+0xfc/0xba0 [ 239.512300][ C0] ? clear_user_erms+0xe/0x10 [ 239.516810][ C0] ? copy_fpstate_to_sigframe+0x130/0xba0 [ 239.522359][ C0] ? __kasan_check_write+0x14/0x20 [ 239.527302][ C0] ? _raw_spin_trylock_bh+0x190/0x190 [ 239.532517][ C0] ? fpregs_set+0x7a0/0x7a0 [ 239.536852][ C0] ? irqentry_exit+0x30/0x40 [ 239.541281][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 239.547144][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 239.553123][ C0] ? get_signal+0x12af/0x1820 [ 239.557729][ C0] ? _raw_spin_unlock_irq+0x48/0x70 [ 239.562761][ C0] ? fpu__alloc_mathframe+0xc3/0x150 [ 239.567879][ C0] get_sigframe+0x378/0x4b0 [ 239.572223][ C0] ? restore_sigcontext+0x700/0x700 [ 239.577253][ C0] ? ptrace_notify+0x350/0x350 [ 239.581852][ C0] ? __kasan_check_write+0x14/0x20 [ 239.586803][ C0] arch_do_signal_or_restart+0x2ac/0x16f0 [ 239.592353][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 239.597306][ C0] ? do_sigaltstack+0x3f9/0x630 [ 239.601999][ C0] ? get_sigframe_size+0x10/0x10 [ 239.606849][ C0] ? restore_altstack+0x107/0x150 [ 239.611707][ C0] ? __ia32_sys_sigaltstack+0x260/0x260 [ 239.617089][ C0] ? sched_clock_cpu+0x71/0x2b0 [ 239.621782][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 239.627072][ C0] exit_to_user_mode_loop+0x74/0xa0 [ 239.632109][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 239.637425][ C0] syscall_exit_to_user_mode+0x26/0x130 [ 239.642784][ C0] do_syscall_64+0x47/0xb0 [ 239.647036][ C0] ? clear_bhb_loop+0x55/0xb0 [ 239.651546][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 239.657273][ C0] RIP: 0033:0x7efce2b6a417 [ 239.661532][ 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 [ 239.681060][ C0] RSP: 002b:00007efce2b2b238 EFLAGS: 00000246 [ 239.686962][ C0] RAX: 00000000000000ca RBX: 00007efce2bf4308 RCX: 00007efce2b6a419 [ 239.694770][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007efce2bf4308 [ 239.702582][ C0] RBP: 00007efce2bf4300 R08: 00007efce2b2b6c0 R09: 00007efce2b2b6c0 [ 239.710480][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007efce2bf430c [ 239.718289][ C0] R13: 0000000000000000 R14: 00007ffefb754fb0 R15: 00007ffefb755098 [ 239.726108][ C0] [ 285.501542][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 145s! [ 285.510298][ C0] Showing busy workqueues and worker pools: [ 285.516031][ C0] workqueue events: flags=0x0 [ 285.520516][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 285.520562][ C0] pending: psi_avgs_work, vmstat_shepherd [ 285.520625][ C0] workqueue events_unbound: flags=0x2 [ 285.539093][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 285.539134][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 285.539182][ C0] workqueue events_power_efficient: flags=0x80 [ 285.559496][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 285.559552][ C0] pending: neigh_managed_work, neigh_periodic_work, neigh_managed_work, check_lifetime, neigh_periodic_work [ 285.559647][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.559687][ C0] pending: gc_worker [ 285.559718][ C0] workqueue writeback: flags=0x4a [ 285.595317][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 285.595372][ C0] pending: wb_workfn [ 285.595693][ C0] workqueue dm_bufio_cache: flags=0x8 [ 285.612005][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.612053][ C0] pending: work_fn [ 285.612159][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 285.628975][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 285.629033][ C0] pending: addrconf_verify_work