// https://syzkaller.appspot.com/bug?id=ff9ab4a23afa7553fb79f745a92be87ba4144508
// 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, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  long res = 0;
  memcpy((void*)0x20000140, "/dev/nullb0\000", 12);
  res =
      syscall(__NR_openat, 0xffffffffffffff9c, 0x20000140, 0x4000000004002, 0);
  if (res != -1)
    r[0] = res;
  syscall(__NR_mmap, 0x20000000, 0xe7e000, 0x200000b, 0x13, r[0], 0);
  *(uint64_t*)0x20000080 = 1;
  syscall(__NR_ioctl, r[0], 0x125d, 0x20000080);
  return 0;
}