// https://syzkaller.appspot.com/bug?id=bf172344c5f1d3487a4feff67c3dd30e08d5b635
// 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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

static long syz_open_dev(volatile long a0, volatile long a1, volatile long 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) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

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*)0x20000040, "/dev/bus/usb/00#/00#\000", 21);
  res = -1;
  res = syz_open_dev(0x20000040, 0x4000000000000071, 0x28081);
  if (res != -1)
    r[0] = res;
  syscall(__NR_socketpair, 1ul, 0ul, 0, 0x20000000ul);
  *(uint8_t*)0x20001140 = 0;
  *(uint8_t*)0x20001141 = 0;
  *(uint16_t*)0x20001142 = 0;
  *(uint16_t*)0x20001144 = 0;
  *(uint16_t*)0x20001146 = 0;
  *(uint32_t*)0x20001148 = 0;
  *(uint64_t*)0x20001150 = 0;
  syscall(__NR_ioctl, r[0], 0x8108551b, 0x20001140ul);
  STORE_BY_BITMASK(uint8_t, , 0x20000000, 1, 0, 7);
  STORE_BY_BITMASK(uint8_t, , 0x20000000, 1, 7, 1);
  syscall(__NR_ioctl, r[0], 0xc0185502, 0x20000000ul);
  syscall(__NR_openat, 0xffffffffffffff9cul, 0ul, 2ul, 0ul);
  return 0;
}