./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2189758504 <...> Warning: Permanently added '10.128.1.150' (ED25519) to the list of known hosts. execve("./syz-executor2189758504", ["./syz-executor2189758504"], 0x7fff86ac2e50 /* 10 vars */) = 0 brk(NULL) = 0x555568fe2000 brk(0x555568fe2d00) = 0x555568fe2d00 arch_prctl(ARCH_SET_FS, 0x555568fe2380) = 0 set_tid_address(0x555568fe2650) = 5058 set_robust_list(0x555568fe2660, 24) = 0 rseq(0x555568fe2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2189758504", 4096) = 28 getrandom("\x08\x8d\xe5\x2c\x12\x42\xb6\xc1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568fe2d00 brk(0x555569003d00) = 0x555569003d00 brk(0x555569004000) = 0x555569004000 mprotect(0x7ffac26b7000, 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 5059 attached , child_tidptr=0x555568fe2650) = 5059 [pid 5059] set_robust_list(0x555568fe2660, 24) = 0 [pid 5059] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5059] setsid() = 1 [pid 5059] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5059] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5059] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5059] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5059] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5059] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5059] unshare(CLONE_NEWNS) = 0 [pid 5059] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5059] unshare(CLONE_NEWIPC) = 0 [pid 5059] unshare(CLONE_NEWCGROUP) = 0 [pid 5059] unshare(CLONE_NEWUTS) = 0 [pid 5059] unshare(CLONE_SYSVSEM) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "16777216", 8) = 8 [pid 5059] close(3) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "536870912", 9) = 9 [pid 5059] close(3) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "1024", 4) = 4 [pid 5059] close(3) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "8192", 4) = 4 [pid 5059] close(3) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "1024", 4) = 4 [pid 5059] close(3) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "1024", 4) = 4 [pid 5059] close(3) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5059] close(3) = 0 [pid 5059] getpid() = 1 [pid 5059] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 bb ff ff [ 184.094577][ C0] RSP: 0018:ffffc90000007c60 EFLAGS: 00000002 [ 184.094591][ C0] RAX: 0000000000010002 RBX: 0000000000000001 RCX: ffffffff8de94680 [ 184.094602][ C0] RDX: ffffffff8de94680 RSI: 00000000ffffffff RDI: ffff88807fdb7300 [ 184.094613][ C0] RBP: dffffc0000000000 R08: ffffffff8978d1bb R09: fffff52000000f80 [ 184.094624][ C0] R10: dffffc0000000000 R11: fffff52000000f80 R12: 0000000000000002 [ 184.094634][ C0] R13: ffffffff8978d100 R14: ffff88807fdb7340 R15: ffffffff8de95140 [ 184.094645][ C0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 184.094658][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 184.094669][ C0] CR2: 000055bd04e46978 CR3: 0000000078890000 CR4: 00000000003506f0 [ 184.094682][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 184.094691][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 184.094701][ C0] Call Trace: [ 184.094708][ C0] [ 184.094715][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 184.094733][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 184.094750][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 184.094766][ C0] ? nmi_handle+0x2a/0x580 [ 184.094789][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 184.094806][ C0] ? nmi_handle+0x14f/0x580 [ 184.094820][ C0] ? nmi_handle+0x2a/0x580 [ 184.094835][ C0] ? lock_is_held_type+0xd/0x190 [ 184.094854][ C0] ? default_do_nmi+0x63/0x160 [ 184.094871][ C0] ? exc_nmi+0x123/0x1f0 [ 184.094888][ C0] ? end_repeat_nmi+0xf/0x53 [ 184.094905][ C0] ? __pfx_advance_sched+0x10/0x10 [ 184.094927][ C0] ? advance_sched+0xbb/0xca0 [ 184.094944][ C0] ? lock_is_held_type+0xd/0x190 [ 184.094963][ C0] ? lock_is_held_type+0xd/0x190 [ 184.095001][ C0] ? lock_is_held_type+0xd/0x190 [ 184.095020][ C0] [ 184.095025][ C0] [ 184.095030][ C0] ? __pfx_advance_sched+0x10/0x10 [ 184.095046][ C0] advance_sched+0xcd/0xca0 [ 184.095062][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 184.095083][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 184.095106][ C0] ? __pfx_advance_sched+0x10/0x10 [ 184.095122][ C0] __hrtimer_run_queues+0x595/0xd00 [ 184.095149][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 184.095166][ C0] ? ktime_get_update_offsets_now+0x411/0x430 [ 184.095185][ C0] hrtimer_interrupt+0x396/0x990 [ 184.095214][ C0] __sysvec_apic_timer_interrupt+0x107/0x3a0 [ 184.095236][ C0] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 184.095255][ C0] [ 184.095260][ C0] [ 184.095266][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 184.095283][ C0] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 184.095299][ C0] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 40 d0 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 95 ec 9b 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 [ 184.095310][ C0] RSP: 0018:ffffffff8de07ca8 EFLAGS: 00000246 [ 184.095322][ C0] RAX: ffffffff8de94680 RBX: ffff88801aade064 RCX: 0000000000018371 [ 184.095333][ C0] RDX: 0000000000000001 RSI: ffff88801aade000 RDI: ffff88801aade064 [ 184.095343][ C0] RBP: 000000000003a0f8 R08: ffff8880b9437d0b R09: 1ffff11017286fa1 [ 184.095353][ C0] R10: dffffc0000000000 R11: ffffffff8b6bc600 R12: ffff88801b711800 [ 184.095364][ C0] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8e8948a0 [ 184.095376][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 184.095402][ C0] acpi_idle_enter+0xe4/0x140 [ 184.095419][ C0] cpuidle_enter_state+0x118/0x490 [ 184.095434][ C0] ? __pfx_tick_nohz_idle_stop_tick+0x10/0x10 [ 184.095455][ C0] cpuidle_enter+0x5d/0xa0 [ 184.095472][ C0] do_idle+0x375/0x5d0 [ 184.095487][ C0] ? __pfx___schedule+0x10/0x10 [ 184.095509][ C0] ? __pfx_do_idle+0x10/0x10 [ 184.095526][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 184.095545][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 184.095566][ C0] ? rest_init+0x35/0x300 [ 184.095581][ C0] ? rest_init+0x35/0x300 [ 184.095596][ C0] cpu_startup_entry+0x42/0x60 [ 184.095610][ C0] rest_init+0x2e0/0x300 [ 184.095625][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 184.095642][ C0] arch_call_rest_init+0xe/0x10 [ 184.095662][ C0] start_kernel+0x47a/0x500 [ 184.095681][ C0] x86_64_start_reservations+0x2a/0x30 [ 184.095697][ C0] x86_64_start_kernel+0x99/0xa0 [ 184.095711][ C0] common_startup_64+0x13e/0x147 [ 184.095735][ C0] [ 184.095742][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.255 msecs [ 184.096484][ C1] rcu: rcu_preempt kthread starved for 10448 jiffies! g6673 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 184.587797][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 184.598038][ C1] rcu: RCU grace-period kthread stack dump: [ 184.603931][ C1] task:rcu_preempt state:R running task stack:26256 pid:16 tgid:16 ppid:2 flags:0x00004000 [ 184.615685][ C1] Call Trace: [ 184.618971][ C1] [ 184.621916][ C1] __schedule+0x1781/0x49d0 [ 184.626482][ C1] ? __pfx___schedule+0x10/0x10 [ 184.631368][ C1] ? __pfx_lock_release+0x10/0x10 [ 184.636414][ C1] ? __asan_memset+0x23/0x50 [ 184.641028][ C1] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 184.646844][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 184.653190][ C1] ? schedule+0x90/0x320 [ 184.657445][ C1] schedule+0x14b/0x320 [ 184.661622][ C1] schedule_timeout+0x1be/0x310 [ 184.666488][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 184.671876][ C1] ? __pfx_process_timeout+0x10/0x10 [ 184.677181][ C1] ? prepare_to_swait_event+0x32e/0x350 [ 184.682762][ C1] rcu_gp_fqs_loop+0x2df/0x1370 [ 184.687620][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 184.692932][ C1] ? __pfx_rcu_implicit_dynticks_qs+0x10/0x10 [ 184.699281][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 184.704502][ C1] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 184.709801][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 184.715755][ C1] ? finish_swait+0xd4/0x1e0 [ 184.720363][ C1] rcu_gp_kthread+0xa7/0x3b0 [ 184.724972][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 184.730270][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 184.736191][ C1] ? __kthread_parkme+0x169/0x1d0 [ 184.741316][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 184.746533][ C1] kthread+0x2f0/0x390 [ 184.750615][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 184.756051][ C1] ? __pfx_kthread+0x10/0x10 [ 184.760655][ C1] ret_from_fork+0x4b/0x80 [ 184.765184][ C1] ? __pfx_kthread+0x10/0x10 [ 184.769872][ C1] ret_from_fork_asm+0x1a/0x30 [ 184.774665][ C1] [ 184.777689][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 184.784282][ C1] CPU: 1 PID: 5059 Comm: syz-executor218 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 184.794352][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 184.804414][ C1] RIP: 0010:smp_call_function_many_cond+0x1855/0x2960 [ 184.811192][ C1] Code: 89 e6 83 e6 01 31 ff e8 d9 d5 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 84 d1 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 68 d1 0b 00 eb e4 44 [ 184.830976][ C1] RSP: 0018:ffffc900041df5a0 EFLAGS: 00000293 [ 184.837143][ C1] RAX: 0000000000000000 RBX: 1ffff11017288be5 RCX: ffff8880227d1e00 [ 184.845132][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 184.853894][ C1] RBP: ffffc900041df7a0 R08: ffffffff818922b7 R09: 1ffffffff2595ca6 [ 184.861872][ C1] R10: dffffc0000000000 R11: fffffbfff2595ca7 R12: dffffc0000000000 [ 184.869849][ C1] R13: ffff8880b9445f28 R14: ffff8880b953f440 R15: 0000000000000000 [ 184.877832][ C1] FS: 0000555568fe2380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 184.886770][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 184.893359][ C1] CR2: 0000000020000600 CR3: 0000000078890000 CR4: 00000000003506f0 [ 184.901339][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 184.909574][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 184.917548][ C1] Call Trace: [ 184.920832][ C1] [ 184.923683][ C1] ? rcu_check_gp_kthread_starvation+0x278/0x310 [ 184.930035][ C1] ? print_other_cpu_stall+0x14a4/0x15e0 [ 184.935696][ C1] ? __pfx_print_other_cpu_stall+0x10/0x10 [ 184.941528][ C1] ? timekeeping_advance+0x7e3/0xab0 [ 184.946833][ C1] ? kvm_check_and_clear_guest_paused+0x6a/0xd0 [ 184.953084][ C1] ? rcu_sched_clock_irq+0x9f4/0x10a0 [ 184.958472][ C1] ? __pfx_rcu_sched_clock_irq+0x10/0x10 [ 184.964114][ C1] ? hrtimer_run_queues+0x16c/0x460 [ 184.969338][ C1] ? acct_account_cputime+0xdd/0x210 [ 184.974655][ C1] ? update_process_times+0x1ce/0x230 [ 184.980056][ C1] ? tick_nohz_handler+0x39e/0x540 [ 184.985185][ C1] ? __pfx_tick_nohz_handler+0x10/0x10 [ 184.990655][ C1] ? __hrtimer_run_queues+0x54b/0xd00 [ 184.996099][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 185.001861][ C1] ? ktime_get_update_offsets_now+0x411/0x430 [ 185.007955][ C1] ? hrtimer_interrupt+0x396/0x990 [ 185.013107][ C1] ? __sysvec_apic_timer_interrupt+0x107/0x3a0 [ 185.019367][ C1] ? sysvec_apic_timer_interrupt+0xa1/0xc0 [ 185.025184][ C1] [ 185.028120][ C1] [ 185.031059][ C1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 185.037228][ C1] ? smp_call_function_many_cond+0x1837/0x2960 [ 185.043394][ C1] ? smp_call_function_many_cond+0x1855/0x2960 [ 185.049568][ C1] ? __pfx_flush_tlb_func+0x10/0x10 [ 185.054793][ C1] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 185.061132][ C1] ? __pfx_lock_release+0x10/0x10 [ 185.066195][ C1] ? rcu_is_watching+0x15/0xb0 [ 185.070995][ C1] ? __pfx_flush_tlb_func+0x10/0x10 [ 185.076301][ C1] on_each_cpu_cond_mask+0x3f/0x80 [ 185.081516][ C1] flush_tlb_mm_range+0x330/0x5c0 [ 185.086554][ C1] ? __pfx_flush_tlb_mm_range+0x10/0x10 [ 185.092117][ C1] copy_mm+0x1a6b/0x21b0 [ 185.096389][ C1] ? __pfx_copy_mm+0x10/0x10 [ 185.100998][ C1] ? __init_rwsem+0x122/0x160 [ 185.105685][ C1] ? copy_signal+0x549/0x670 [ 185.110287][ C1] copy_process+0x187a/0x3df0 [ 185.115019][ C1] ? copy_process+0xa03/0x3df0 [ 185.119801][ C1] ? __pfx_copy_process+0x10/0x10 [ 185.124832][ C1] ? do_raw_spin_lock+0x14f/0x370 [ 185.129895][ C1] kernel_clone+0x223/0x840 [ 185.134504][ C1] ? __pfx_kernel_clone+0x10/0x10 [ 185.139555][ C1] __x64_sys_clone+0x258/0x2a0 [ 185.144341][ C1] ? __pfx___x64_sys_clone+0x10/0x10 [ 185.149649][ C1] ? do_syscall_64+0x10a/0x240 [ 185.154419][ C1] ? syscall_trace_enter+0x5f/0x150 [ 185.159626][ C1] do_syscall_64+0xfb/0x240 [ 185.164140][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 185.170042][ C1] RIP: 0033:0x7ffac263cee3 [ 185.174478][ C1] 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 [ 185.194374][ C1] RSP: 002b:00007fff683dcc88 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 185.202809][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffac263cee3 [ 185.210793][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 185.218861][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffac25fa0b0 [ 185.226841][ C1] R10: 0000555568fe2650 R11: 0000000000000246 R12: 0000000000000001 [ 185.234904][ C1] R13: 0000000000010976 R14: 00007fff683dcdac R15: 0000000000000003 [ 185.242900][ C1]