// https://syzkaller.appspot.com/bug?id=acc91fc5738dacbfaa1163219fc6bf0685224b60
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

static long syz_open_pts(volatile long a0, volatile long a1)
{
  int ptyno = 0;
  if (ioctl(a0, TIOCGPTN, &ptyno))
    return -1;
  char buf[128];
  sprintf(buf, "/dev/pts/%d", ptyno);
  return open(buf, a1, 0);
}

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*)0x20000080, "/dev/ptmx\000", 10);
  res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000080ul,
                0x80000000000a01ul, 0ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_ioctl, r[0], 0x5403, 0ul);
  syscall(__NR_write, r[0], 0x200000c0ul, 0xffffff78ul);
  res = -1;
  res = syz_open_pts(r[0], 0);
  if (res != -1)
    r[1] = res;
  syscall(__NR_readv, r[1], 0ul, 0ul);
  return 0;
}