// https://syzkaller.appspot.com/bug?id=d770685c526dba78a4c4ee5881d05c2042a68868
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <pthread.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/event.h>
#include <sys/ioctl.h>
#include <sys/ktrace.h>
#include <sys/mman.h>
#include <sys/msg.h>
#include <sys/resource.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/sysctl.h>
#include <sys/syslog.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

typedef struct {
  pthread_mutex_t mu;
  pthread_cond_t cv;
  int state;
} event_t;

static void event_init(event_t* ev)
{
  if (pthread_mutex_init(&ev->mu, 0))
    exit(1);
  if (pthread_cond_init(&ev->cv, 0))
    exit(1);
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  pthread_mutex_lock(&ev->mu);
  if (ev->state)
    exit(1);
  ev->state = 1;
  pthread_mutex_unlock(&ev->mu);
  pthread_cond_broadcast(&ev->cv);
}

static void event_wait(event_t* ev)
{
  pthread_mutex_lock(&ev->mu);
  while (!ev->state)
    pthread_cond_wait(&ev->cv, &ev->mu);
  pthread_mutex_unlock(&ev->mu);
}

static int event_isset(event_t* ev)
{
  pthread_mutex_lock(&ev->mu);
  int res = ev->state;
  pthread_mutex_unlock(&ev->mu);
  return res;
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  pthread_mutex_lock(&ev->mu);
  for (;;) {
    if (ev->state)
      break;
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
    now = current_time_ms();
    if (now - start > timeout)
      break;
  }
  int res = ev->state;
  pthread_mutex_unlock(&ev->mu);
  return res;
}

#define CAST

static void sandbox_common()
{
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = 8 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 0;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
}

static void loop();

static int do_sandbox_none(void)
{
  sandbox_common();
  loop();
  return 0;
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  int i, call, thread;
  for (call = 0; call < 32; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      if (call == 6 || call == 8 || call == 9 || call == 12 || call == 17 ||
          call == 20 || call == 25)
        break;
      event_timedwait(&th->done, 50);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

static void execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[6] = {0xffffffffffffffff, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x20000480, "./file0\000", 8);
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(open))(
        /*file=*/0x20000480, /*flags=*/0, /*mode=*/0x4ebfac6bbaf7949);
    break;
  case 1:
    memcpy((void*)0x20000480, "./file0\000", 8);
    res = -1;
    res = ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(open))(
        /*file=*/0x20000480, /*flags=*/0, /*mode=*/0x4ebfac6bbaf7949);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    *(uint64_t*)0x20000080 = 0;
    *(uint64_t*)0x20000088 = 0;
    *(uint64_t*)0x20000090 = 0x20000040;
    *(uint64_t*)0x20000098 = 0;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(writev))(
        /*fd=*/r[0], /*vec=*/0x20000080, /*vlen=*/2);
    break;
  case 3:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(ioctl))(
        /*fd=*/r[0], /*cmd=*/0x2000746f, 0);
    break;
  case 4:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(socketpair))(
        /*domain=*/1, /*type=*/5, /*proto=*/0, /*fds=*/0);
    break;
  case 5:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(socket))(
        /*domain=*/2, /*type=*/2, /*proto=*/0);
    break;
  case 6:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(sendmsg))(
        /*fd=*/-1, /*msg=*/0, /*f=*/0);
    break;
  case 7:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t,
                  intptr_t))CAST(sendto))(/*fd=*/-1, /*buf=*/0, /*len=*/0,
                                          /*f=*/0, /*addr=*/0, /*addrlen=*/0);
    break;
  case 8:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        getsockopt))(/*fd=*/-1, /*level=*/0xffff, /*optname=*/0x1022,
                     /*optval=*/0x20000000, /*optlen=*/0xc);
    break;
  case 9:
    *(uint32_t*)0x20000040 = 8;
    *(uint32_t*)0x20000044 = 0;
    *(uint32_t*)0x20000048 = 0;
    *(uint32_t*)0x2000004c = 0;
    *(uint32_t*)0x20000050 = -1;
    *(uint32_t*)0x20000054 = 0xe6;
    *(uint16_t*)0x20000058 = 7;
    *(uint16_t*)0x2000005a = 0;
    *(uint64_t*)0x20000060 = 0;
    *(uint64_t*)0x20000068 = 0;
    *(uint64_t*)0x20000070 = 0x32;
    *(uint64_t*)0x20000078 = 0xfffffffffffffffa;
    *(uint64_t*)0x20000080 = 0xe361;
    *(uint64_t*)0x20000088 = 0;
    *(uint64_t*)0x20000090 = 0;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(semctl))(
        /*semid=*/0, /*semnum=*/0, /*cmd=*/1, /*arg=*/0x20000040);
    break;
  case 10:
    *(uint32_t*)0x20000040 = 8;
    *(uint32_t*)0x20000044 = 0;
    *(uint32_t*)0x20000048 = 0;
    *(uint32_t*)0x2000004c = 0;
    *(uint32_t*)0x20000050 = -1;
    *(uint32_t*)0x20000054 = 0xe6;
    *(uint16_t*)0x20000058 = 7;
    *(uint16_t*)0x2000005a = 0;
    *(uint64_t*)0x20000060 = 0;
    *(uint64_t*)0x20000068 = 0;
    *(uint64_t*)0x20000070 = 0x32;
    *(uint64_t*)0x20000078 = 0xfffffffffffffffa;
    *(uint64_t*)0x20000080 = 0xe361;
    *(uint64_t*)0x20000088 = 0;
    *(uint64_t*)0x20000090 = 0;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(semctl))(
        /*semid=*/0, /*semnum=*/0, /*cmd=*/1, /*arg=*/0x20000040);
    break;
  case 11:
    res = -1;
    res = ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(semget))(
        /*key=*/0x798e2634, /*nsems=*/2, /*flags=*/0x2b4);
    if (res != -1)
      r[1] = res;
    break;
  case 12:
    ((intptr_t(*)(intptr_t, intptr_t))CAST(msgget))(
        /*key=*/0, /*flags=*/0xfffffffffffffffd);
    break;
  case 13:
    res = -1;
    res = ((intptr_t(*)(intptr_t, intptr_t))CAST(msgget))(
        /*key=*/0, /*flags=*/0xfffffffffffffffd);
    if (res != -1)
      r[2] = res;
    break;
  case 14:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        msgrcv))(/*msqid=*/r[2], /*msgp=*/0x20001cc0, /*sz=*/0x106e, /*typ=*/3,
                 /*flags=*/0);
    break;
  case 15:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        msgrcv))(/*msqid=*/r[2], /*msgp=*/0x20001cc0, /*sz=*/0x106e, /*typ=*/3,
                 /*flags=*/0);
    break;
  case 16:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(msgsnd))(
        /*msqid=*/r[2], /*msgp=*/0, /*sz=*/0x64, /*flags=*/0x800);
    break;
  case 17:
    *(uint64_t*)0x200001c0 = 3;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(msgsnd))(
        /*msqid=*/r[2], /*msgp=*/0x200001c0, /*sz=*/8, /*flags=*/0x800);
    break;
  case 18:
    *(uint64_t*)0x200001c0 = 3;
    memcpy(
        (void*)0x200001c8,
        "\xb7\x77\xaa\x5d\x5c\x38\x25\xc4\xde\xa6\x7e\xf9\x47\x32\x21\x27\x27"
        "\xaf\xb9\x47\x9c\xbd\x6a\xba\x63\x78\x88\xd2\x5d\x3f\x20\xb9\xc1\x63"
        "\x0f\x51\x6a\xdf\xdb\xe6\x88\x8d\x75\xfa\x21\xc1\x1d\x12\x13\xa9\x31"
        "\xaf\x43\xe6\x5d\xb6\xae\x61\x4b\x70\xd6\x36\x7b\xeb\x77\xa0\xba\x63"
        "\xa7\x47\x80\x2a\x91\x22\x2b\x59\xfb\xc4\x51\xb8\xc5\x09\x24\x5d\x31"
        "\x30\x84\x2d\x97\xa9\x92\x4d\x14\xfc\xc5\x35\x82\x83\x54\xe8\xff\x3c"
        "\x05\x1e\x9e\x0a\xd4\x52\x5f\x7f\xda\x5f\x49\xfd\xb0\xec\xe7\x8d\xfe"
        "\x91\xfa\x95\xdd\xb1\x80\xb6\x42\xd2\xf5\xac\x12\xa2\x78\x5a\x11\x3c"
        "\x75\xa0\x57\x2d\xc3\xb4\x39\x39\x6b\x99\x8f\xdd\x65\x24\x14\x2f\xc3"
        "\x23\x73\x37\x64\xc2\x07\xa2\x46\x1a\xb4\x28\xaf\xb1\x30\x52\xd9\x45"
        "\xa4\x08\x66\x02\xad\x7b\x8e\xe0\xae\x5d\xe2\xbe\xd7\xef\x80\x8e\x49"
        "\xcd\x55\x9a\xc0\x28\xa3\x8c\x94\xac\x09\x25\x7b\xd0\x85\x1c\x75\x92"
        "\x85\x62\x14\x48\x44\x54\xf7\xea\xbb\x38\x2e\x34\x9b\x04\xa1\x2e\x38"
        "\xf6\x31\x05\x0a\xa7\xd3\x59\xdf",
        229);
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(msgsnd))(
        /*msqid=*/r[2], /*msgp=*/0x200001c0, /*sz=*/0xed, /*flags=*/0x800);
    break;
  case 19:
    res = -1;
    res = ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        getsockopt))(/*fd=*/0xffffff9c, /*level=*/0xffff, /*optname=*/0x1022,
                     /*optval=*/0x200000c0, /*optlen=*/0xc);
    if (res != -1)
      r[3] = *(uint32_t*)0x200000c4;
    break;
  case 20:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(socketpair))(
        /*domain=*/1, /*type=*/5, /*proto=*/0, /*fds=*/0);
    break;
  case 21:
    res = -1;
    res = ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        socketpair))(/*domain=*/1, /*type=*/5, /*proto=*/0, /*fds=*/0x20000000);
    if (res != -1)
      r[4] = *(uint32_t*)0x20000004;
    break;
  case 22:
    *(uint32_t*)0x200000c0 = 0xc;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        getsockopt))(/*fd=*/r[4], /*level=*/0xffff, /*optname=*/0x1022,
                     /*optval=*/0x20000080, /*optlen=*/0x200000c0);
    break;
  case 23:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        getsockopt))(/*fd=*/r[4], /*level=*/0xffff, /*optname=*/0x1022,
                     /*optval=*/0, /*optlen=*/0);
    break;
  case 24:
    *(uint32_t*)0x20000040 = 0;
    *(uint32_t*)0x20000044 = 0;
    *(uint32_t*)0x20000048 = 0;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        setsockopt))(/*fd=*/-1, /*level=*/0xffff, /*optname=*/0x1022,
                     /*optval=*/0x20000040, /*optlen=*/0xc);
    break;
  case 25:
    ((intptr_t(*)(intptr_t))CAST(pipe))(/*pipefd=*/0);
    break;
  case 26:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(fcntl))(
        /*fd=*/-1, /*cmd=*/4, /*flags=*/0x46bfb);
    break;
  case 27:
    res = -1;
    res = ((intptr_t(*)())CAST(getpid))();
    if (res != -1)
      r[5] = res;
    break;
  case 28:
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(fcntl))(
        /*fd=*/-1, /*cmd=*/6, /*pid=*/r[5]);
    break;
  case 29:
    *(uint32_t*)0x20000240 = 0;
    *(uint32_t*)0x20000244 = 0;
    *(uint32_t*)0x20000248 = 0;
    *(uint32_t*)0x2000024c = r[3];
    *(uint32_t*)0x20000250 = 0;
    *(uint32_t*)0x20000254 = 0x146;
    *(uint16_t*)0x20000258 = 5;
    *(uint16_t*)0x2000025a = 0;
    *(uint64_t*)0x20000260 = 0;
    *(uint64_t*)0x20000268 = 0;
    *(uint64_t*)0x20000270 = 0x20;
    *(uint64_t*)0x20000278 = 5;
    *(uint64_t*)0x20000280 = 0x401;
    *(uint64_t*)0x20000288 = 0;
    *(uint64_t*)0x20000290 = 0;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t))CAST(semctl))(
        /*semid=*/r[1], /*semnum=*/0, /*cmd=*/1, /*arg=*/0x20000240);
    break;
  case 30:
    *(uint32_t*)0x20000200 = -1;
    *(uint32_t*)0x20000204 = 0;
    *(uint32_t*)0x20000208 = 0;
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t))CAST(
        setsockopt))(/*fd=*/-1, /*level=*/0xffff, /*optname=*/0x1022,
                     /*optval=*/0x20000200, /*optlen=*/0xc);
    break;
  case 31:
    memcpy((void*)0x20000140,
           "\x8f\xa2\x4d\xba\xc5\x50\x7f\x84\x91\x6c\x1b\xf1\x5e\xd0\x90\x00"
           "\x25\xe6\xa4\x2b\x4f\x7e\xf3\x02\x2f\xcb\x49\x23\xd6\x97\x1a\x1f"
           "\x6a\xab\x2b\x55\xe5\xb8\x85\x4a\xc7\x56\xd9\x87\xea\xba\xa2\x9b"
           "\x76\x25\x50\x42\x5e\xd5\x28\x50\xc8\xe6\xbd\x6b\x2b\xcc\x0d\x9d"
           "\x16\xcd\x0a\xb3\x6a\x79\x7b\xa1\x4d\xd9\x97\x10\x6f\xff\x20\x40"
           "\x4e\x85\x5f\xb7\x3e\x75",
           86);
    ((intptr_t(*)(intptr_t, intptr_t, intptr_t))CAST(write))(
        /*fd=*/r[0], /*buf=*/0x20000140, /*count=*/0x56);
    break;
  }
}
int main(void)
{
  ((intptr_t(*)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t,
                intptr_t))CAST(mmap))(/*addr=*/0x20000000, /*len=*/0x1000000,
                                      /*prot=*/3, /*flags=*/0x1012, /*fd=*/-1,
                                      /*offset=*/0);
  do_sandbox_none();
  return 0;
}