// https://syzkaller.appspot.com/bug?id=efffbf96c6c052f5ecc7f712e0e162c57aaf199e
// 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[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  intptr_t res = 0;
  memcpy((void*)0x20000180, "./file0\000", 8);
  syscall(__NR_mkdir, 0x20000180ul, 0ul);
  memcpy((void*)0x200000c0, "./file1\000", 8);
  syscall(__NR_mkdir, 0x200000c0ul, 0ul);
  memcpy((void*)0x200001c0, "./bus\000", 6);
  syscall(__NR_mkdir, 0x200001c0ul, 0ul);
  memcpy((void*)0x20000040, "./bus\000", 6);
  memcpy((void*)0x20000080, "overlay\000", 8);
  memcpy((void*)0x20000280, "upperdir=./bus,workdir=./file1,lowerdir=./file0",
         47);
  syscall(__NR_mount, 0ul, 0x20000040ul, 0x20000080ul, 0ul, 0x20000280ul);
  memcpy((void*)0x20000200, "./bus\000", 6);
  syscall(__NR_chdir, 0x20000200ul);
  memcpy((void*)0x20000240, "./file0\000", 8);
  res = syscall(__NR_open, 0x20000240ul, 0x102e0ul, 0ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_fcntl, r[0], 0x400ul, 0ul);
  syscall(__NR_read, r[0], 0x20000300ul, 0x2020ul);
  return 0;
}