// https://syzkaller.appspot.com/bug?id=81419dc41de046ccb99da6f333074b750ac36680
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <pwd.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/endian.h>
#include <sys/syscall.h>
#include <unistd.h>

uint64_t r[5] = {0x0, 0x0, 0x0, 0x0, 0x0};

int main(void)
{
  syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
  intptr_t res = 0;
  syscall(SYS_munmap, 0x10ffa000, 0x3000);
  syscall(SYS_mmap, 0x10ffd000, 0x1000, 4, 0x1010, -1, 0);
  syscall(SYS_mmap, 0x10ffc000, 0x1000, 0, 0x1010, -1, 0);
  syscall(SYS_mmap, 0x10ffc000, 0x1000, 0, 0x1010, -1, 0);
  syscall(SYS_mprotect, 0x10ffe000, 0x2000, 7);
  syscall(SYS_mprotect, 0x10ffd000, 0x3000, 0);
  syscall(SYS_fork);
  res = syscall(SYS_fork);
  if (res != -1)
    r[0] = res;
  syscall(SYS_fork);
  res = syscall(SYS_fork);
  if (res != -1)
    r[1] = res;
  syscall(SYS_sigqueue, (intptr_t)r[1], 0x2b, 0);
  res = syscall(SYS_fork);
  if (res != -1)
    r[2] = res;
  syscall(SYS_sigqueue, (intptr_t)r[2], 0x2b, 0);
  syscall(SYS_vfork);
  syscall(SYS_fcntl, -1, 5, 0);
  syscall(SYS_sigqueue, 0, 0x2b, 0);
  syscall(SYS_getpgrp, (intptr_t)r[0]);
  syscall(SYS_fork);
  res = syscall(SYS_fork);
  if (res != -1)
    r[3] = res;
  syscall(SYS_sigqueue, (intptr_t)r[3], 0x2b, 0);
  syscall(SYS_getpid);
  syscall(SYS_mmap, 0x10ffc000, 0x1000, 3, 0x10, -1, 7);
  syscall(SYS_mmap, 0x10ffc000, 0x1000, 3, 0x10, -1, 7);
  res = syscall(SYS_fork);
  if (res != -1)
    r[4] = res;
  syscall(SYS_sigqueue, (intptr_t)r[4], 0xc, 0);
  return 0;
}