// https://syzkaller.appspot.com/bug?id=a3ccd60dff387b59eacf0daef35824f7b361a20d
// 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, 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*)0x20001000, "/dev/nullb0\000", 12);
  res =
      syscall(__NR_openat, 0xffffffffffffff9cul, 0x20001000ul, 0x101802ul, 0ul);
  if (res != -1)
    r[0] = res;
  res = syscall(__NR_dup, r[0]);
  if (res != -1)
    r[1] = res;
  syscall(__NR_mmap, 0x20000000ul, 0xb36000ul, 2ul, 0x28011ul, r[1], 0ul);
  syscall(__NR_madvise, 0x20000000ul, 0x600003ul, 0x15ul);
  return 0;
}