// https://syzkaller.appspot.com/bug?id=8a072ffc26eb4f44df80c48a5c859205f0fa0b93
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.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/syscall.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;
}

#define __syscall syscall

static void execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter;
  for (iter = 0;; 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 < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[1] = {0x0};

void execute_one(void)
{
  long res = 0;
  syscall(SYS_writev, -1, 0, 0);
  syscall(SYS_ioctl, -1, 0x40087468, 0);
  syscall(SYS_ioctl, -1, 0x40087468, 0);
  *(uint32_t*)0x20000580 = 0xc;
  syscall(SYS_getsockopt, -1, 0xffff, 0x1022, 0x20000540, 0x20000580);
  syscall(SYS_getpeername, -1, 0x20000600, 0);
  res = syscall(SYS_semget, 0, 3, 0);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20000ac0 = 0;
  *(uint16_t*)0x20000ac2 = 1;
  *(uint16_t*)0x20000ac4 = 0x1000;
  *(uint16_t*)0x20000ac6 = 0;
  *(uint16_t*)0x20000ac8 = -1;
  *(uint16_t*)0x20000aca = 0x1000;
  *(uint16_t*)0x20000acc = 2;
  *(uint16_t*)0x20000ace = 1;
  *(uint16_t*)0x20000ad0 = 0x1000;
  syscall(SYS_semop, r[0], 0x20000ac0, 3);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000, 0x1000000, 3, 0x1012, -1, 0, 0);
  loop();
  return 0;
}