// https://syzkaller.appspot.com/bug?id=7846e0698b4f280c719f56111620205c475da907
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

uint64_t r[2] = {0xffffffffffffffff, 0x0};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  memcpy((void*)0x200005c0, "./file0\000", 8);
  syscall(__NR_mkdir, 0x200005c0, 0);
  memcpy((void*)0x20000700, "./file1\000", 8);
  syscall(__NR_mkdir, 0x20000700, 0);
  memcpy((void*)0x20000280, "./file1/file0\000", 14);
  res = syscall(__NR_creat, 0x20000280, 0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000480, "./file0\000", 8);
  memcpy((void*)0x200004c0, "overlay\000", 8);
  memcpy((void*)0x20000d40, "upperdir=./file0,lowerdir=./file1,workdir=./file1",
         49);
  syscall(__NR_mount, 0x400000, 0x20000480, 0x200004c0, 0, 0x20000d40);
  memcpy((void*)0x20000180, "./file0\000", 8);
  syscall(__NR_chdir, 0x20000180);
  res = syscall(__NR_fstat, r[0], 0x20000500);
  if (res != -1)
    r[1] = *(uint32_t*)0x20000510;
  memcpy((void*)0x20000440, "./file0\000", 8);
  syscall(__NR_open, 0x20000440, 0x400, 0x21);
  syscall(__NR_fchown, r[0], 0, r[1]);
  memcpy((void*)0x20000140, "./file0\000", 8);
  memcpy((void*)0x20000040, "./file1\000", 8);
  syscall(__NR_link, 0x20000140, 0x20000040);
  return 0;
}