// https://syzkaller.appspot.com/bug?id=81a8305cd101438de3770cd5fb625389bc9a4df9
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <unistd.h>

#include <stdint.h>
#include <string.h>

static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block",
            (uint8_t)a1, (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf));
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

long r[2];
void loop()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfff000, 0x3, 0x32, 0xffffffff, 0x0);
  r[0] = syscall(__NR_socket, 0x2, 0x1, 0x0);
  memcpy((void*)0x20a9dff3, "/dev/net/tun", 13);
  r[1] = syz_open_dev(0x20a9dff3, 0x0, 0x6);
  memcpy((void*)0x20d7cfd8, "\x65\x71\x6c\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00",
         16);
  memcpy((void*)0x20d7cfe8, "\x62\x7b\x73\x0e\xff\x7f\x04\x00\x6c\x0c"
                            "\x00\x01\x00\x00\x00\x00",
         16);
  syscall(__NR_ioctl, r[1], 0x400454ca, 0x20d7cfd8);
  memcpy((void*)0x2062ffe0, "\x65\x71\x6c\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00",
         16);
  *(uint16_t*)0x2062fff0 = 0x301;
  syscall(__NR_ioctl, r[0], 0x8914, 0x2062ffe0);
  syscall(__NR_read, r[1], 0x20aa2000, 0xa);
}

int main()
{
  loop();
  return 0;
}