./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4125442983 <...> Warning: Permanently added '10.128.0.66' (ED25519) to the list of known hosts. execve("./syz-executor4125442983", ["./syz-executor4125442983"], 0x7ffc07c37b80 /* 10 vars */) = 0 brk(NULL) = 0x5555651ef000 brk(0x5555651efd00) = 0x5555651efd00 arch_prctl(ARCH_SET_FS, 0x5555651ef380) = 0 set_tid_address(0x5555651ef650) = 5867 set_robust_list(0x5555651ef660, 24) = 0 rseq(0x5555651efca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4125442983", 4096) = 28 getrandom("\x99\x4a\xae\xe4\xb6\x81\x0f\xdb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555651efd00 brk(0x555565210d00) = 0x555565210d00 brk(0x555565211000) = 0x555565211000 mprotect(0x7f85b69ba000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5868 attached , child_tidptr=0x5555651ef650) = 5868 [pid 5868] set_robust_list(0x5555651ef660, 24) = 0 [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] getppid() = 0 [pid 5868] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5868] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5868] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5868] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5868] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5868] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5868] unshare(CLONE_NEWNS) = 0 [pid 5868] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5868] unshare(CLONE_NEWIPC) = 0 [pid 5868] unshare(CLONE_NEWCGROUP) = 0 [pid 5868] unshare(CLONE_NEWUTS) = 0 [pid 5868] unshare(CLONE_SYSVSEM) = 0 [pid 5868] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "16777216", 8) = 8 [pid 5868] close(3) = 0 [pid 5868] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "536870912", 9) = 9 [pid 5868] close(3) = 0 [pid 5868] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1024", 4) = 4 [pid 5868] close(3) = 0 [pid 5868] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "8192", 4) = 4 [pid 5868] close(3) = 0 [pid 5868] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1024", 4) = 4 [pid 5868] close(3) = 0 [pid 5868] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1024", 4) = 4 [pid 5868] close(3) = 0 [pid 5868] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5868] close(3) = 0 [pid 5868] getpid() = 1 [pid 5868] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< c7 44 2c 09 f2 f2 f2 00 43 c7 44 2c 11 f3 f3 f3 f3 66 43 c7 44 [ 365.038671][ C1] RSP: 0018:ffffc90000a18a00 EFLAGS: 00000806 [ 365.038694][ C1] RAX: f2f2f200f1f1f1f1 RBX: 1ffff92000143170 RCX: 0000000000000000 [ 365.038707][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9a60d860 [ 365.038724][ C1] RBP: ffffc90000a18b48 R08: 0000000000000001 R09: 0000000000000000 [ 365.038735][ C1] R10: dffffc0000000000 R11: fffffbfff203acf6 R12: 1ffff92000143148 [ 365.038749][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 365.038761][ C1] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 365.038776][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 365.038789][ C1] CR2: 000055ff07c9b000 CR3: 0000000078334000 CR4: 00000000003526f0 [ 365.038808][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 365.038818][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 365.038830][ C1] Call Trace: [ 365.038838][ C1] [ 365.038848][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 365.038877][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 365.038904][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 365.038926][ C1] ? nmi_handle+0x2a/0x5a0 [ 365.038952][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 365.038977][ C1] ? nmi_handle+0x14f/0x5a0 [ 365.038995][ C1] ? nmi_handle+0x2a/0x5a0 [ 365.039013][ C1] ? lock_acquire+0x84/0x550 [ 365.039038][ C1] ? default_do_nmi+0x63/0x160 [ 365.039062][ C1] ? exc_nmi+0x123/0x1f0 [ 365.039085][ C1] ? end_repeat_nmi+0xf/0x53 [ 365.039109][ C1] ? lock_acquire+0x84/0x550 [ 365.039134][ C1] ? lock_acquire+0x84/0x550 [ 365.039161][ C1] ? lock_acquire+0x84/0x550 [ 365.039186][ C1] [ 365.039192][ C1] [ 365.039201][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 365.039231][ C1] ? __lock_acquire+0x1384/0x2050 [ 365.039262][ C1] ? __pfx_debug_objects_fill_pool+0x10/0x10 [ 365.039289][ C1] _raw_spin_lock_irqsave+0xd5/0x120 [ 365.039316][ C1] ? debug_object_activate+0x16d/0x510 [ 365.039333][ C1] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 365.039365][ C1] debug_object_activate+0x16d/0x510 [ 365.039383][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 365.039406][ C1] ? __pfx_debug_object_activate+0x10/0x10 [ 365.039423][ C1] ? advance_sched+0xa02/0xca0 [ 365.039451][ C1] ? _raw_spin_lock_irq+0xdf/0x120 [ 365.039477][ C1] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 365.039506][ C1] enqueue_hrtimer+0x30/0x3c0 [ 365.039527][ C1] __hrtimer_run_queues+0x6cb/0xd50 [ 365.039545][ C1] ? ktime_get_update_offsets_now+0x3c/0x250 [ 365.039577][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 365.039595][ C1] ? ktime_get_update_offsets_now+0x22d/0x250 [ 365.039622][ C1] hrtimer_interrupt+0x396/0x990 [ 365.039650][ C1] __sysvec_apic_timer_interrupt+0x110/0x420 [ 365.039670][ C1] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 365.039698][ C1] [ 365.039703][ C1] [ 365.039717][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 365.039736][ C1] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 365.039757][ C1] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 d5 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 55 fd a0 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 365.039771][ C1] RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246 [ 365.039786][ C1] RAX: ffff88801cee0000 RBX: ffff888020ad4864 RCX: 000000000004db79 [ 365.039799][ C1] RDX: 0000000000000001 RSI: ffff888020ad4800 RDI: ffff888020ad4864 [ 365.039811][ C1] RBP: 000000000003a9b8 R08: ffff8880b8737e9b R09: 1ffff110170e6fd3 [ 365.039824][ C1] R10: dffffc0000000000 R11: ffffffff8bc9da00 R12: ffff88801c726800 [ 365.039837][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f12ea40 [ 365.039850][ C1] ? __pfx_acpi_idle_enter+0x10/0x10 [ 365.039876][ C1] acpi_idle_enter+0xe4/0x140 [ 365.039898][ C1] cpuidle_enter_state+0x109/0x470 [ 365.039918][ C1] ? __pfx_menu_select+0x10/0x10 [ 365.039939][ C1] cpuidle_enter+0x5d/0xa0 [ 365.039966][ C1] do_idle+0x375/0x5d0 [ 365.039993][ C1] ? __pfx_do_idle+0x10/0x10 [ 365.040020][ C1] ? do_idle+0xa/0x5d0 [ 365.040042][ C1] cpu_startup_entry+0x42/0x60 [ 365.040064][ C1] start_secondary+0x102/0x110 [ 365.040087][ C1] common_startup_64+0x13e/0x147 [ 365.040115][ C1] [ 365.040123][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.602 msecs [ 365.040514][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g10529 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 365.526006][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 365.535994][ C0] rcu: RCU grace-period kthread stack dump: [ 365.541905][ C0] task:rcu_preempt state:R running task stack:24912 pid:17 tgid:17 ppid:2 flags:0x00004000 [ 365.553702][ C0] Call Trace: [ 365.556999][ C0] [ 365.559956][ C0] __schedule+0x184f/0x4c30 [ 365.564514][ C0] ? __pfx___schedule+0x10/0x10 [ 365.569395][ C0] ? __pfx_lock_release+0x10/0x10 [ 365.574454][ C0] ? __asan_memset+0x23/0x50 [ 365.579089][ C0] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 365.584940][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 365.591305][ C0] ? schedule+0x90/0x320 [ 365.595576][ C0] schedule+0x14b/0x320 [ 365.599760][ C0] schedule_timeout+0x1be/0x310 [ 365.604647][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 365.610053][ C0] ? __pfx_process_timeout+0x10/0x10 [ 365.615379][ C0] ? prepare_to_swait_event+0x330/0x350 [ 365.620972][ C0] rcu_gp_fqs_loop+0x2df/0x1330 [ 365.625847][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 365.631169][ C0] ? __pfx_rcu_watching_snap_save+0x10/0x10 [ 365.637088][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 365.642402][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 365.648341][ C0] ? finish_swait+0xd4/0x1e0 [ 365.652978][ C0] rcu_gp_kthread+0xa7/0x3b0 [ 365.657597][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 365.662845][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 365.669392][ C0] ? __kthread_parkme+0x169/0x1d0 [ 365.674472][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 365.679702][ C0] kthread+0x2f0/0x390 [ 365.683811][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 365.689038][ C0] ? __pfx_kthread+0x10/0x10 [ 365.693656][ C0] ret_from_fork+0x4b/0x80 [ 365.698106][ C0] ? __pfx_kthread+0x10/0x10 [ 365.702733][ C0] ret_from_fork_asm+0x1a/0x30 [ 365.707545][ C0] [ 365.710589][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 365.716928][ C0] CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.12.0-rc6-syzkaller-01561-ga71c69f51d11 #0 [ 365.727632][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 365.737713][ C0] Workqueue: events_unbound toggle_allocation_gate [ 365.744266][ C0] RIP: 0010:smp_call_function_many_cond+0x19f3/0x2ca0 [ 365.751058][ C0] Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 86 f3 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 31 ef 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 15 ef [ 365.770687][ C0] RSP: 0018:ffffc900001076e0 EFLAGS: 00000293 [ 365.776785][ C0] RAX: ffffffff8188eb4b RBX: 1ffff110170e88d9 RCX: ffff88801ceb3c00 [ 365.784780][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 365.792772][ C0] RBP: ffffc900001078e0 R08: ffffffff8188eb1a R09: 1ffffffff285c100 [ 365.800856][ C0] R10: dffffc0000000000 R11: fffffbfff285c101 R12: dffffc0000000000 [ 365.808949][ C0] R13: ffff8880b87446c8 R14: ffff8880b863fa80 R15: 0000000000000001 [ 365.816954][ C0] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 365.825907][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 365.832521][ C0] CR2: 0000000020000600 CR3: 000000000e734000 CR4: 00000000003526f0 [ 365.840522][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 365.848520][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 365.856542][ C0] Call Trace: [ 365.859856][ C0] [ 365.862727][ C0] ? rcu_check_gp_kthread_starvation+0x278/0x310 [ 365.869095][ C0] ? print_other_cpu_stall+0x1475/0x15b0 [ 365.874773][ C0] ? notifier_call_chain+0x19f/0x3e0 [ 365.880111][ C0] ? __pfx_print_other_cpu_stall+0x10/0x10 [ 365.885958][ C0] ? seqcount_lockdep_reader_access+0x1c6/0x220 [ 365.892243][ C0] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 365.898891][ C0] ? kvm_check_and_clear_guest_paused+0x6a/0xd0 [ 365.905184][ C0] ? rcu_sched_clock_irq+0xa1a/0x10d0 [ 365.910605][ C0] ? __pfx_rcu_sched_clock_irq+0x10/0x10 [ 365.916270][ C0] ? hrtimer_run_queues+0x16c/0x460 [ 365.921514][ C0] ? acct_account_cputime+0x207/0x210 [ 365.926955][ C0] ? update_process_times+0x1ce/0x230 [ 365.932392][ C0] ? tick_nohz_handler+0x37c/0x500 [ 365.937545][ C0] ? __pfx_tick_nohz_handler+0x10/0x10 [ 365.943037][ C0] ? __hrtimer_run_queues+0x551/0xd50 [ 365.948460][ C0] ? ktime_get_update_offsets_now+0x3c/0x250 [ 365.954494][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 365.960248][ C0] ? ktime_get_update_offsets_now+0x22d/0x250 [ 365.966360][ C0] ? hrtimer_interrupt+0x396/0x990 [ 365.971524][ C0] ? __sysvec_apic_timer_interrupt+0x110/0x420 [ 365.977709][ C0] ? sysvec_apic_timer_interrupt+0xa1/0xc0 [ 365.983579][ C0] [ 365.986558][ C0] [ 365.989523][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 365.995730][ C0] ? smp_call_function_many_cond+0x19da/0x2ca0 [ 366.001942][ C0] ? smp_call_function_many_cond+0x1a0b/0x2ca0 [ 366.008146][ C0] ? smp_call_function_many_cond+0x19f3/0x2ca0 [ 366.014429][ C0] ? kmem_cache_alloc_bulk_noprof+0x156/0x7c0 [ 366.020534][ C0] ? __pfx_do_sync_core+0x10/0x10 [ 366.025606][ C0] ? __pfx___text_poke+0x10/0x10 [ 366.030601][ C0] ? process_scheduled_works+0x976/0x1850 [ 366.036370][ C0] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 366.042727][ C0] ? __pfx___might_resched+0x10/0x10 [ 366.048049][ C0] ? __mutex_trylock_common+0x183/0x2e0 [ 366.053635][ C0] ? __pfx___might_resched+0x10/0x10 [ 366.058960][ C0] ? __pfx_do_sync_core+0x10/0x10 [ 366.064018][ C0] on_each_cpu_cond_mask+0x3f/0x80 [ 366.069159][ C0] text_poke_bp_batch+0x352/0xb30 [ 366.074237][ C0] ? __pfx_text_poke_bp_batch+0x10/0x10 [ 366.079815][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 366.084899][ C0] ? arch_jump_label_transform_queue+0x9b/0x100 [ 366.091183][ C0] ? process_scheduled_works+0x976/0x1850 [ 366.097034][ C0] text_poke_finish+0x30/0x50 [ 366.101771][ C0] arch_jump_label_transform_apply+0x1c/0x30 [ 366.107804][ C0] static_key_enable_cpuslocked+0x136/0x260 [ 366.113746][ C0] static_key_enable+0x1a/0x20 [ 366.118548][ C0] toggle_allocation_gate+0xbc/0x260 [ 366.123870][ C0] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 366.129801][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 366.136210][ C0] process_scheduled_works+0xa63/0x1850 [ 366.141820][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 366.147935][ C0] ? assign_work+0x364/0x3d0 [ 366.152577][ C0] worker_thread+0x870/0xd30 [ 366.157228][ C0] ? __kthread_parkme+0x169/0x1d0 [ 366.162292][ C0] ? __pfx_worker_thread+0x10/0x10 [ 366.167444][ C0] kthread+0x2f0/0x390 [ 366.171568][ C0] ? __pfx_worker_thread+0x10/0x10 [ 366.176738][ C0] ? __pfx_kthread+0x10/0x10 [ 366.181361][ C0] ret_from_fork+0x4b/0x80 [ 366.185827][ C0] ? __pfx_kthread+0x10/0x10 [ 366.190444][ C0] ret_from_fork_asm+0x1a/0x30 [ 366.195263][ C0]