./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4258445308 <...> Warning: Permanently added '10.128.0.208' (ED25519) to the list of known hosts. execve("./syz-executor4258445308", ["./syz-executor4258445308"], 0x7ffd4f0a1770 /* 10 vars */) = 0 brk(NULL) = 0x555574816000 brk(0x555574816d00) = 0x555574816d00 arch_prctl(ARCH_SET_FS, 0x555574816380) = 0 set_tid_address(0x555574816650) = 5837 set_robust_list(0x555574816660, 24) = 0 rseq(0x555574816ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4258445308", 4096) = 28 getrandom("\xb8\xff\x00\x6d\xca\xce\x57\x02", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555574816d00 brk(0x555574837d00) = 0x555574837d00 brk(0x555574838000) = 0x555574838000 mprotect(0x7f9207d71000, 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 chmod("/dev/raw-gadget", 0666) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5838 attached [pid 5838] set_robust_list(0x555574816660, 24 [pid 5837] <... clone resumed>, child_tidptr=0x555574816650) = 5838 [pid 5838] <... set_robust_list resumed>) = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] getppid() = 0 [pid 5838] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5838] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5838] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5838] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5838] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5838] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5838] unshare(CLONE_NEWNS) = 0 [pid 5838] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5838] unshare(CLONE_NEWIPC) = 0 [pid 5838] unshare(CLONE_NEWCGROUP) = 0 [pid 5838] unshare(CLONE_NEWUTS) = 0 [pid 5838] unshare(CLONE_SYSVSEM) = 0 [pid 5838] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "16777216", 8) = 8 [pid 5838] close(3) = 0 [pid 5838] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "536870912", 9) = 9 [pid 5838] close(3) = 0 [pid 5838] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1024", 4) = 4 [pid 5838] close(3) = 0 [pid 5838] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "8192", 4) = 4 [pid 5838] close(3) = 0 [pid 5838] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1024", 4) = 4 [pid 5838] close(3) = 0 [pid 5838] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1024", 4) = 4 [pid 5838] close(3) = 0 [pid 5838] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5838] close(3) = 0 [pid 5838] getpid() = 1 [pid 5838] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0f b6 44 1d 00 84 c0 48 89 da 0f 85 8d 01 00 00 8b 44 24 60 b9 [ 177.602797][ C1] RSP: 0018:ffffc90000a18be0 EFLAGS: 00000097 [ 177.602819][ C1] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: ffffffff8171b08f [ 177.602831][ C1] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc90000a18c40 [ 177.602842][ C1] RBP: ffffc90000a18cb0 R08: 0000000000000003 R09: fffff52000143188 [ 177.602853][ C1] R10: dffffc0000000000 R11: fffff52000143188 R12: ffff8880b872c880 [ 177.602866][ C1] R13: 1ffff92000143188 R14: ffffc90000a18c40 R15: 1ffff110170e5911 [ 177.602878][ C1] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 177.602892][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 177.602903][ C1] CR2: 00007f9207d7a2d0 CR3: 00000000773c8000 CR4: 00000000003526f0 [ 177.602918][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 177.602927][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 177.602938][ C1] Call Trace: [ 177.602945][ C1] [ 177.602952][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 177.602979][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 177.603005][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 177.603027][ C1] ? nmi_handle+0x2a/0x5a0 [ 177.603050][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 177.603071][ C1] ? nmi_handle+0x14f/0x5a0 [ 177.603087][ C1] ? nmi_handle+0x2a/0x5a0 [ 177.603104][ C1] ? do_raw_spin_lock+0x14f/0x370 [ 177.603123][ C1] ? default_do_nmi+0x63/0x160 [ 177.603146][ C1] ? exc_nmi+0x123/0x1f0 [ 177.603168][ C1] ? end_repeat_nmi+0xf/0x53 [ 177.603190][ C1] ? do_raw_spin_lock+0x14f/0x370 [ 177.603210][ C1] ? do_raw_spin_lock+0x14f/0x370 [ 177.603230][ C1] ? do_raw_spin_lock+0x14f/0x370 [ 177.603251][ C1] ? do_raw_spin_lock+0x14f/0x370 [ 177.603270][ C1] [ 177.603275][ C1] [ 177.603284][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 177.603304][ C1] ? advance_sched+0xa02/0xca0 [ 177.603323][ C1] ? advance_sched+0xa02/0xca0 [ 177.603344][ C1] _raw_spin_lock_irq+0xdf/0x120 [ 177.603362][ C1] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 177.603383][ C1] __hrtimer_run_queues+0x670/0xd50 [ 177.603399][ C1] ? ktime_get_update_offsets_now+0x3c/0x250 [ 177.603427][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 177.603444][ C1] ? ktime_get_update_offsets_now+0x22d/0x250 [ 177.603468][ C1] hrtimer_interrupt+0x396/0x990 [ 177.603494][ C1] __sysvec_apic_timer_interrupt+0x110/0x420 [ 177.603512][ C1] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 177.603530][ C1] [ 177.603535][ C1] [ 177.603541][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 177.603560][ C1] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 177.603586][ C1] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 d7 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 55 6b a3 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 [ 177.603599][ C1] RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246 [ 177.603614][ C1] RAX: ffff88801d2e8000 RBX: ffff888143ac5064 RCX: 0000000000028651 [ 177.603626][ C1] RDX: 0000000000000001 RSI: ffff888143ac5000 RDI: ffff888143ac5064 [ 177.603638][ C1] RBP: 000000000003a9b8 R08: ffff8880b8737e9b R09: 1ffff110170e6fd3 [ 177.603649][ C1] R10: dffffc0000000000 R11: ffffffff8bc76a00 R12: ffff8881476a6800 [ 177.603661][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f12e980 [ 177.603674][ C1] ? __pfx_acpi_idle_enter+0x10/0x10 [ 177.603700][ C1] acpi_idle_enter+0xe4/0x140 [ 177.603721][ C1] cpuidle_enter_state+0x109/0x470 [ 177.603741][ C1] ? __pfx_menu_select+0x10/0x10 [ 177.603767][ C1] cpuidle_enter+0x5d/0xa0 [ 177.603788][ C1] do_idle+0x375/0x5d0 [ 177.603807][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 177.603834][ C1] ? __pfx_do_idle+0x10/0x10 [ 177.603853][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 177.603874][ C1] ? complete+0xb4/0x1c0 [ 177.603895][ C1] cpu_startup_entry+0x42/0x60 [ 177.603914][ C1] start_secondary+0x102/0x110 [ 177.603935][ C1] common_startup_64+0x13e/0x147 [ 177.603960][ C1] [ 177.603968][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.308 msecs [ 177.604653][ C0] rcu: rcu_preempt kthread starved for 10498 jiffies! g8421 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 178.064178][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 178.074157][ C0] rcu: RCU grace-period kthread stack dump: [ 178.080061][ C0] task:rcu_preempt state:R running task stack:25824 pid:17 tgid:17 ppid:2 flags:0x00004000 [ 178.091834][ C0] Call Trace: [ 178.095118][ C0] [ 178.098058][ C0] __schedule+0x184f/0x4c30 [ 178.102599][ C0] ? __pfx___schedule+0x10/0x10 [ 178.107464][ C0] ? __pfx_lock_release+0x10/0x10 [ 178.112506][ C0] ? __asan_memset+0x23/0x50 [ 178.117118][ C0] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 178.122947][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 178.129292][ C0] ? schedule+0x90/0x320 [ 178.133542][ C0] schedule+0x14b/0x320 [ 178.137712][ C0] schedule_timeout+0x1be/0x310 [ 178.142577][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 178.147966][ C0] ? __pfx_process_timeout+0x10/0x10 [ 178.153271][ C0] ? prepare_to_swait_event+0x330/0x350 [ 178.158842][ C0] rcu_gp_fqs_loop+0x2df/0x1330 [ 178.163724][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 178.168972][ C0] ? __pfx_rcu_watching_snap_save+0x10/0x10 [ 178.174888][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 178.180180][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 178.186088][ C0] ? finish_swait+0xd4/0x1e0 [ 178.190696][ C0] rcu_gp_kthread+0xa7/0x3b0 [ 178.195306][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 178.200511][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 178.206422][ C0] ? __kthread_parkme+0x169/0x1d0 [ 178.211466][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 178.216670][ C0] kthread+0x2f0/0x390 [ 178.220749][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 178.225953][ C0] ? __pfx_kthread+0x10/0x10 [ 178.230557][ C0] ret_from_fork+0x4b/0x80 [ 178.234987][ C0] ? __pfx_kthread+0x10/0x10 [ 178.239584][ C0] ret_from_fork_asm+0x1a/0x30 [ 178.244377][ C0] [ 178.247404][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 178.253727][ C0] CPU: 0 UID: 0 PID: 5838 Comm: syz-executor425 Not tainted 6.12.0-rc6-syzkaller-00077-g2e1b3cc9d7f7 #0 [ 178.264838][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 178.274895][ C0] RIP: 0010:smp_call_function_many_cond+0x1a06/0x2ca0 [ 178.281667][ C0] Code: 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 15 ef 0b 00 eb e4 44 89 e9 80 e1 07 80 c1 03 38 c1 7c e2 4c 89 [ 178.301280][ C0] RSP: 0018:ffffc90003c27580 EFLAGS: 00000202 [ 178.307358][ C0] RAX: 0000000000000000 RBX: 1ffff110170e8919 RCX: ffff888011d53c00 [ 178.315338][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 178.323315][ C0] RBP: ffffc90003c27780 R08: ffffffff8188eb1a R09: 1ffffffff2859b06 [ 178.331292][ C0] R10: dffffc0000000000 R11: fffffbfff2859b07 R12: dffffc0000000000 [ 178.339269][ C0] R13: ffff8880b87448c8 R14: ffff8880b863fc80 R15: 0000000000000001 [ 178.347246][ C0] FS: 0000555574816380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 178.356185][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 178.362774][ C0] CR2: 0000000020000600 CR3: 00000000773c8000 CR4: 00000000003526f0 [ 178.370755][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 178.378734][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 178.386711][ C0] Call Trace: [ 178.389995][ C0] [ 178.392857][ C0] ? rcu_check_gp_kthread_starvation+0x278/0x310 [ 178.399199][ C0] ? print_other_cpu_stall+0x1475/0x15b0 [ 178.404848][ C0] ? notifier_call_chain+0x19f/0x3e0 [ 178.410160][ C0] ? __pfx_print_other_cpu_stall+0x10/0x10 [ 178.415979][ C0] ? seqcount_lockdep_reader_access+0x1c6/0x220 [ 178.422227][ C0] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 178.428833][ C0] ? kvm_check_and_clear_guest_paused+0x6a/0xd0 [ 178.435087][ C0] ? rcu_sched_clock_irq+0xa1a/0x10d0 [ 178.440475][ C0] ? __pfx_rcu_sched_clock_irq+0x10/0x10 [ 178.446122][ C0] ? hrtimer_run_queues+0x16c/0x460 [ 178.451349][ C0] ? acct_account_cputime+0xd3/0x210 [ 178.456672][ C0] ? update_process_times+0x1ce/0x230 [ 178.462080][ C0] ? tick_nohz_handler+0x37c/0x500 [ 178.467217][ C0] ? __pfx_tick_nohz_handler+0x10/0x10 [ 178.472690][ C0] ? __hrtimer_run_queues+0x551/0xd50 [ 178.478071][ C0] ? ktime_get_update_offsets_now+0x3c/0x250 [ 178.484081][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 178.489810][ C0] ? ktime_get_update_offsets_now+0x22d/0x250 [ 178.495898][ C0] ? hrtimer_interrupt+0x396/0x990 [ 178.501038][ C0] ? __sysvec_apic_timer_interrupt+0x110/0x420 [ 178.507204][ C0] ? sysvec_apic_timer_interrupt+0xa1/0xc0 [ 178.513018][ C0] [ 178.515957][ C0] [ 178.518893][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 178.525063][ C0] ? smp_call_function_many_cond+0x19da/0x2ca0 [ 178.531226][ C0] ? smp_call_function_many_cond+0x1a06/0x2ca0 [ 178.537396][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 178.542627][ C0] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 178.548964][ C0] ? __pfx_lock_release+0x10/0x10 [ 178.554007][ C0] ? rcu_is_watching+0x15/0xb0 [ 178.558779][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 178.564014][ C0] on_each_cpu_cond_mask+0x3f/0x80 [ 178.569167][ C0] flush_tlb_mm_range+0x329/0x5c0 [ 178.574218][ C0] ? __pfx_flush_tlb_mm_range+0x10/0x10 [ 178.579823][ C0] copy_mm+0x1728/0x1e80 [ 178.584143][ C0] ? __pfx_copy_mm+0x10/0x10 [ 178.588797][ C0] ? __init_rwsem+0x122/0x160 [ 178.593502][ C0] ? copy_signal+0x52a/0x650 [ 178.598118][ C0] copy_process+0x1845/0x3d50 [ 178.602832][ C0] ? copy_process+0x9fa/0x3d50 [ 178.607625][ C0] ? __pfx_copy_process+0x10/0x10 [ 178.612668][ C0] ? do_raw_spin_lock+0x14f/0x370 [ 178.617716][ C0] kernel_clone+0x226/0x8f0 [ 178.622242][ C0] ? __pfx_kernel_clone+0x10/0x10 [ 178.627298][ C0] __x64_sys_clone+0x258/0x2a0 [ 178.632080][ C0] ? __pfx___x64_sys_clone+0x10/0x10 [ 178.637395][ C0] ? do_syscall_64+0x100/0x230 [ 178.642180][ C0] do_syscall_64+0xf3/0x230 [ 178.646695][ C0] ? clear_bhb_loop+0x35/0x90 [ 178.651386][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 178.657287][ C0] RIP: 0033:0x7f9207cfdf73 [ 178.661753][ C0] Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 [ 178.681393][ C0] RSP: 002b:00007ffc761c37f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 178.689834][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9207cfdf73 [ 178.697813][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 178.705789][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 7fffffffffffffff [ 178.713768][ C0] R10: 0000555574816650 R11: 0000000000000246 R12: 0000000000000001 [ 178.721745][ C0] R13: 00000000000118bb R14: 00007ffc761c391c R15: 00007ffc761c3930 [ 178.729738][ C0]