// https://syzkaller.appspot.com/bug?id=c1e9d4a220a1ca340c354dfacb78fa31bdd425f5
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#include <linux/usb/ch9.h>

static unsigned long long procid;

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

#define MAX_FDS 30

#define USB_MAX_IFACE_NUM 4
#define USB_MAX_EP_NUM 32
#define USB_MAX_FDS 6

struct usb_endpoint_index {
  struct usb_endpoint_descriptor desc;
  int handle;
};

struct usb_iface_index {
  struct usb_interface_descriptor* iface;
  uint8_t bInterfaceNumber;
  uint8_t bAlternateSetting;
  uint8_t bInterfaceClass;
  struct usb_endpoint_index eps[USB_MAX_EP_NUM];
  int eps_num;
};

struct usb_device_index {
  struct usb_device_descriptor* dev;
  struct usb_config_descriptor* config;
  uint8_t bDeviceClass;
  uint8_t bMaxPower;
  int config_length;
  struct usb_iface_index ifaces[USB_MAX_IFACE_NUM];
  int ifaces_num;
  int iface_cur;
};

struct usb_info {
  int fd;
  struct usb_device_index index;
};

static struct usb_info usb_devices[USB_MAX_FDS];
static int usb_devices_num;

static bool parse_usb_descriptor(const char* buffer, size_t length,
                                 struct usb_device_index* index)
{
  if (length < sizeof(*index->dev) + sizeof(*index->config))
    return false;
  memset(index, 0, sizeof(*index));
  index->dev = (struct usb_device_descriptor*)buffer;
  index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev));
  index->bDeviceClass = index->dev->bDeviceClass;
  index->bMaxPower = index->config->bMaxPower;
  index->config_length = length - sizeof(*index->dev);
  index->iface_cur = -1;
  size_t offset = 0;
  while (true) {
    if (offset + 1 >= length)
      break;
    uint8_t desc_length = buffer[offset];
    uint8_t desc_type = buffer[offset + 1];
    if (desc_length <= 2)
      break;
    if (offset + desc_length > length)
      break;
    if (desc_type == USB_DT_INTERFACE &&
        index->ifaces_num < USB_MAX_IFACE_NUM) {
      struct usb_interface_descriptor* iface =
          (struct usb_interface_descriptor*)(buffer + offset);
      index->ifaces[index->ifaces_num].iface = iface;
      index->ifaces[index->ifaces_num].bInterfaceNumber =
          iface->bInterfaceNumber;
      index->ifaces[index->ifaces_num].bAlternateSetting =
          iface->bAlternateSetting;
      index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass;
      index->ifaces_num++;
    }
    if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) {
      struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1];
      if (iface->eps_num < USB_MAX_EP_NUM) {
        memcpy(&iface->eps[iface->eps_num].desc, buffer + offset,
               sizeof(iface->eps[iface->eps_num].desc));
        iface->eps_num++;
      }
    }
    offset += desc_length;
  }
  return true;
}

static struct usb_device_index* add_usb_index(int fd, const char* dev,
                                              size_t dev_len)
{
  int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED);
  if (i >= USB_MAX_FDS)
    return NULL;
  if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index))
    return NULL;
  __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE);
  return &usb_devices[i].index;
}

static struct usb_device_index* lookup_usb_index(int fd)
{
  for (int i = 0; i < USB_MAX_FDS; i++) {
    if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) {
      return &usb_devices[i].index;
    }
  }
  return NULL;
}

struct vusb_connect_string_descriptor {
  uint32_t len;
  char* str;
} __attribute__((packed));

struct vusb_connect_descriptors {
  uint32_t qual_len;
  char* qual;
  uint32_t bos_len;
  char* bos;
  uint32_t strs_len;
  struct vusb_connect_string_descriptor strs[0];
} __attribute__((packed));

static const char default_string[] = {8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0};

static const char default_lang_id[] = {4, USB_DT_STRING, 0x09, 0x04};

static bool
lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs,
                           const struct usb_ctrlrequest* ctrl,
                           char** response_data, uint32_t* response_length)
{
  struct usb_device_index* index = lookup_usb_index(fd);
  uint8_t str_idx;
  if (!index)
    return false;
  switch (ctrl->bRequestType & USB_TYPE_MASK) {
  case USB_TYPE_STANDARD:
    switch (ctrl->bRequest) {
    case USB_REQ_GET_DESCRIPTOR:
      switch (ctrl->wValue >> 8) {
      case USB_DT_DEVICE:
        *response_data = (char*)index->dev;
        *response_length = sizeof(*index->dev);
        return true;
      case USB_DT_CONFIG:
        *response_data = (char*)index->config;
        *response_length = index->config_length;
        return true;
      case USB_DT_STRING:
        str_idx = (uint8_t)ctrl->wValue;
        if (descs && str_idx < descs->strs_len) {
          *response_data = descs->strs[str_idx].str;
          *response_length = descs->strs[str_idx].len;
          return true;
        }
        if (str_idx == 0) {
          *response_data = (char*)&default_lang_id[0];
          *response_length = default_lang_id[0];
          return true;
        }
        *response_data = (char*)&default_string[0];
        *response_length = default_string[0];
        return true;
      case USB_DT_BOS:
        *response_data = descs->bos;
        *response_length = descs->bos_len;
        return true;
      case USB_DT_DEVICE_QUALIFIER:
        if (!descs->qual) {
          struct usb_qualifier_descriptor* qual =
              (struct usb_qualifier_descriptor*)response_data;
          qual->bLength = sizeof(*qual);
          qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER;
          qual->bcdUSB = index->dev->bcdUSB;
          qual->bDeviceClass = index->dev->bDeviceClass;
          qual->bDeviceSubClass = index->dev->bDeviceSubClass;
          qual->bDeviceProtocol = index->dev->bDeviceProtocol;
          qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0;
          qual->bNumConfigurations = index->dev->bNumConfigurations;
          qual->bRESERVED = 0;
          *response_length = sizeof(*qual);
          return true;
        }
        *response_data = descs->qual;
        *response_length = descs->qual_len;
        return true;
      default:
        break;
      }
      break;
    default:
      break;
    }
    break;
  default:
    break;
  }
  return false;
}

typedef bool (*lookup_connect_out_response_t)(
    int fd, const struct vusb_connect_descriptors* descs,
    const struct usb_ctrlrequest* ctrl, bool* done);

static bool lookup_connect_response_out_generic(
    int fd, const struct vusb_connect_descriptors* descs,
    const struct usb_ctrlrequest* ctrl, bool* done)
{
  switch (ctrl->bRequestType & USB_TYPE_MASK) {
  case USB_TYPE_STANDARD:
    switch (ctrl->bRequest) {
    case USB_REQ_SET_CONFIGURATION:
      *done = true;
      return true;
    default:
      break;
    }
    break;
  }
  return false;
}

#define UDC_NAME_LENGTH_MAX 128

struct usb_raw_init {
  __u8 driver_name[UDC_NAME_LENGTH_MAX];
  __u8 device_name[UDC_NAME_LENGTH_MAX];
  __u8 speed;
};

enum usb_raw_event_type {
  USB_RAW_EVENT_INVALID = 0,
  USB_RAW_EVENT_CONNECT = 1,
  USB_RAW_EVENT_CONTROL = 2,
};

struct usb_raw_event {
  __u32 type;
  __u32 length;
  __u8 data[0];
};

struct usb_raw_ep_io {
  __u16 ep;
  __u16 flags;
  __u32 length;
  __u8 data[0];
};

#define USB_RAW_EPS_NUM_MAX 30
#define USB_RAW_EP_NAME_MAX 16
#define USB_RAW_EP_ADDR_ANY 0xff

struct usb_raw_ep_caps {
  __u32 type_control : 1;
  __u32 type_iso : 1;
  __u32 type_bulk : 1;
  __u32 type_int : 1;
  __u32 dir_in : 1;
  __u32 dir_out : 1;
};

struct usb_raw_ep_limits {
  __u16 maxpacket_limit;
  __u16 max_streams;
  __u32 reserved;
};

struct usb_raw_ep_info {
  __u8 name[USB_RAW_EP_NAME_MAX];
  __u32 addr;
  struct usb_raw_ep_caps caps;
  struct usb_raw_ep_limits limits;
};

struct usb_raw_eps_info {
  struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX];
};

#define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init)
#define USB_RAW_IOCTL_RUN _IO('U', 1)
#define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event)
#define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor)
#define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32)
#define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_CONFIGURE _IO('U', 9)
#define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32)
#define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info)
#define USB_RAW_IOCTL_EP0_STALL _IO('U', 12)
#define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32)
#define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32)
#define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32)

static int usb_raw_open()
{
  return open("/dev/raw-gadget", O_RDWR);
}

static int usb_raw_init(int fd, uint32_t speed, const char* driver,
                        const char* device)
{
  struct usb_raw_init arg;
  strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name));
  strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name));
  arg.speed = speed;
  return ioctl(fd, USB_RAW_IOCTL_INIT, &arg);
}

static int usb_raw_run(int fd)
{
  return ioctl(fd, USB_RAW_IOCTL_RUN, 0);
}

static int usb_raw_event_fetch(int fd, struct usb_raw_event* event)
{
  return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event);
}

static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io)
{
  return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io);
}

static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io)
{
  return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io);
}

static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc)
{
  return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc);
}

static int usb_raw_ep_disable(int fd, int ep)
{
  return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep);
}

static int usb_raw_configure(int fd)
{
  return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0);
}

static int usb_raw_vbus_draw(int fd, uint32_t power)
{
  return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power);
}

static int usb_raw_ep0_stall(int fd)
{
  return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0);
}

static void set_interface(int fd, int n)
{
  struct usb_device_index* index = lookup_usb_index(fd);
  if (!index)
    return;
  if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) {
    for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) {
      int rv = usb_raw_ep_disable(
          fd, index->ifaces[index->iface_cur].eps[ep].handle);
      if (rv < 0) {
      } else {
      }
    }
  }
  if (n >= 0 && n < index->ifaces_num) {
    for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) {
      int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc);
      if (rv < 0) {
      } else {
        index->ifaces[n].eps[ep].handle = rv;
      }
    }
    index->iface_cur = n;
  }
}

static int configure_device(int fd)
{
  struct usb_device_index* index = lookup_usb_index(fd);
  if (!index)
    return -1;
  int rv = usb_raw_vbus_draw(fd, index->bMaxPower);
  if (rv < 0) {
    return rv;
  }
  rv = usb_raw_configure(fd);
  if (rv < 0) {
    return rv;
  }
  set_interface(fd, 0);
  return 0;
}

#define USB_MAX_PACKET_SIZE 4096

struct usb_raw_control_event {
  struct usb_raw_event inner;
  struct usb_ctrlrequest ctrl;
  char data[USB_MAX_PACKET_SIZE];
};

struct usb_raw_ep_io_data {
  struct usb_raw_ep_io inner;
  char data[USB_MAX_PACKET_SIZE];
};

static volatile long
syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev,
                     const struct vusb_connect_descriptors* descs,
                     lookup_connect_out_response_t lookup_connect_response_out)
{
  if (!dev) {
    return -1;
  }
  int fd = usb_raw_open();
  if (fd < 0) {
    return fd;
  }
  if (fd >= MAX_FDS) {
    close(fd);
    return -1;
  }
  struct usb_device_index* index = add_usb_index(fd, dev, dev_len);
  if (!index) {
    return -1;
  }
  char device[32];
  sprintf(&device[0], "dummy_udc.%llu", procid);
  int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]);
  if (rv < 0) {
    return rv;
  }
  rv = usb_raw_run(fd);
  if (rv < 0) {
    return rv;
  }
  bool done = false;
  while (!done) {
    struct usb_raw_control_event event;
    event.inner.type = 0;
    event.inner.length = sizeof(event.ctrl);
    rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event);
    if (rv < 0) {
      return rv;
    }
    if (event.inner.type != USB_RAW_EVENT_CONTROL)
      continue;
    char* response_data = NULL;
    uint32_t response_length = 0;
    if (event.ctrl.bRequestType & USB_DIR_IN) {
      if (!lookup_connect_response_in(fd, descs, &event.ctrl, &response_data,
                                      &response_length)) {
        usb_raw_ep0_stall(fd);
        continue;
      }
    } else {
      if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) {
        usb_raw_ep0_stall(fd);
        continue;
      }
      response_data = NULL;
      response_length = event.ctrl.wLength;
    }
    if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD &&
        event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) {
      rv = configure_device(fd);
      if (rv < 0) {
        return rv;
      }
    }
    struct usb_raw_ep_io_data response;
    response.inner.ep = 0;
    response.inner.flags = 0;
    if (response_length > sizeof(response.data))
      response_length = 0;
    if (event.ctrl.wLength < response_length)
      response_length = event.ctrl.wLength;
    response.inner.length = response_length;
    if (response_data)
      memcpy(&response.data[0], response_data, response_length);
    else
      memset(&response.data[0], 0, response_length);
    if (event.ctrl.bRequestType & USB_DIR_IN) {
      rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response);
    } else {
      rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response);
    }
    if (rv < 0) {
      return rv;
    }
  }
  sleep_ms(200);
  return fd;
}

static volatile long syz_usb_connect(volatile long a0, volatile long a1,
                                     volatile long a2, volatile long a3)
{
  uint64_t speed = a0;
  uint64_t dev_len = a1;
  const char* dev = (const char*)a2;
  const struct vusb_connect_descriptors* descs =
      (const struct vusb_connect_descriptors*)a3;
  return syz_usb_connect_impl(speed, dev_len, dev, descs,
                              &lookup_connect_response_out_generic);
}

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);

  *(uint8_t*)0x20001580 = 0x12;
  *(uint8_t*)0x20001581 = 1;
  *(uint16_t*)0x20001582 = 0x250;
  *(uint8_t*)0x20001584 = 0x7a;
  *(uint8_t*)0x20001585 = 0x7a;
  *(uint8_t*)0x20001586 = 0xc;
  *(uint8_t*)0x20001587 = 0x10;
  *(uint16_t*)0x20001588 = 0x7ca;
  *(uint16_t*)0x2000158a = 0xb800;
  *(uint16_t*)0x2000158c = 0xa0ff;
  *(uint8_t*)0x2000158e = 1;
  *(uint8_t*)0x2000158f = 2;
  *(uint8_t*)0x20001590 = 3;
  *(uint8_t*)0x20001591 = 1;
  *(uint8_t*)0x20001592 = 9;
  *(uint8_t*)0x20001593 = 2;
  *(uint16_t*)0x20001594 = 0xdd;
  *(uint8_t*)0x20001596 = 1;
  *(uint8_t*)0x20001597 = 8;
  *(uint8_t*)0x20001598 = 0;
  *(uint8_t*)0x20001599 = 0;
  *(uint8_t*)0x2000159a = 0xed;
  *(uint8_t*)0x2000159b = 9;
  *(uint8_t*)0x2000159c = 4;
  *(uint8_t*)0x2000159d = 0x8c;
  *(uint8_t*)0x2000159e = 6;
  *(uint8_t*)0x2000159f = 0xc;
  *(uint8_t*)0x200015a0 = 3;
  *(uint8_t*)0x200015a1 = 0;
  *(uint8_t*)0x200015a2 = 0;
  *(uint8_t*)0x200015a3 = 0;
  *(uint8_t*)0x200015a4 = 9;
  *(uint8_t*)0x200015a5 = 0x24;
  *(uint8_t*)0x200015a6 = 2;
  *(uint8_t*)0x200015a7 = 2;
  *(uint16_t*)0x200015a8 = 0x800;
  *(uint16_t*)0x200015aa = 5;
  *(uint8_t*)0x200015ac = 0x81;
  *(uint8_t*)0x200015ad = 7;
  *(uint8_t*)0x200015ae = 0x24;
  *(uint8_t*)0x200015af = 1;
  *(uint8_t*)0x200015b0 = 0x7f;
  *(uint8_t*)0x200015b1 = 0x91;
  *(uint16_t*)0x200015b2 = 0x1001;
  *(uint8_t*)0x200015b4 = 9;
  *(uint8_t*)0x200015b5 = 0x24;
  *(uint8_t*)0x200015b6 = 2;
  *(uint8_t*)0x200015b7 = 2;
  *(uint16_t*)0x200015b8 = 8;
  *(uint16_t*)0x200015ba = 0xd3;
  *(uint8_t*)0x200015bc = 6;
  *(uint8_t*)0x200015bd = 7;
  *(uint8_t*)0x200015be = 0x24;
  *(uint8_t*)0x200015bf = 1;
  *(uint8_t*)0x200015c0 = -1;
  *(uint8_t*)0x200015c1 = 3;
  *(uint16_t*)0x200015c2 = 3;
  *(uint8_t*)0x200015c4 = 9;
  *(uint8_t*)0x200015c5 = 0x24;
  *(uint8_t*)0x200015c6 = 2;
  *(uint8_t*)0x200015c7 = 2;
  *(uint16_t*)0x200015c8 = 1;
  *(uint16_t*)0x200015ca = 0x80;
  *(uint8_t*)0x200015cc = 1;
  *(uint8_t*)0x200015cd = 7;
  *(uint8_t*)0x200015ce = 0x24;
  *(uint8_t*)0x200015cf = 1;
  *(uint8_t*)0x200015d0 = 0x5d;
  *(uint8_t*)0x200015d1 = -1;
  *(uint16_t*)0x200015d2 = 1;
  *(uint8_t*)0x200015d4 = 9;
  *(uint8_t*)0x200015d5 = 5;
  *(uint8_t*)0x200015d6 = 4;
  *(uint8_t*)0x200015d7 = 0;
  *(uint16_t*)0x200015d8 = 0x40;
  *(uint8_t*)0x200015da = 5;
  *(uint8_t*)0x200015db = 2;
  *(uint8_t*)0x200015dc = 0x3f;
  *(uint8_t*)0x200015dd = 7;
  *(uint8_t*)0x200015de = 0x25;
  *(uint8_t*)0x200015df = 1;
  *(uint8_t*)0x200015e0 = 0x84;
  *(uint8_t*)0x200015e1 = 0x30;
  *(uint16_t*)0x200015e2 = 0;
  *(uint8_t*)0x200015e4 = 9;
  *(uint8_t*)0x200015e5 = 5;
  *(uint8_t*)0x200015e6 = 0xa;
  *(uint8_t*)0x200015e7 = 2;
  *(uint16_t*)0x200015e8 = 0x40;
  *(uint8_t*)0x200015ea = 6;
  *(uint8_t*)0x200015eb = 4;
  *(uint8_t*)0x200015ec = 0x5f;
  *(uint8_t*)0x200015ed = 9;
  *(uint8_t*)0x200015ee = 5;
  *(uint8_t*)0x200015ef = 0;
  *(uint8_t*)0x200015f0 = 0x10;
  *(uint16_t*)0x200015f1 = 0x20;
  *(uint8_t*)0x200015f3 = 0x7f;
  *(uint8_t*)0x200015f4 = 0x80;
  *(uint8_t*)0x200015f5 = 0;
  *(uint8_t*)0x200015f6 = 9;
  *(uint8_t*)0x200015f7 = 5;
  *(uint8_t*)0x200015f8 = 0x8e;
  *(uint8_t*)0x200015f9 = 0;
  *(uint16_t*)0x200015fa = 0x200;
  *(uint8_t*)0x200015fc = 9;
  *(uint8_t*)0x200015fd = 2;
  *(uint8_t*)0x200015fe = 0x46;
  *(uint8_t*)0x200015ff = 2;
  *(uint8_t*)0x20001600 = 0x22;
  *(uint8_t*)0x20001601 = 9;
  *(uint8_t*)0x20001602 = 5;
  *(uint8_t*)0x20001603 = 0xe;
  *(uint8_t*)0x20001604 = 0xc;
  *(uint16_t*)0x20001605 = 0x200;
  *(uint8_t*)0x20001607 = 0xa9;
  *(uint8_t*)0x20001608 = 8;
  *(uint8_t*)0x20001609 = 0;
  *(uint8_t*)0x2000160a = 7;
  *(uint8_t*)0x2000160b = 0x25;
  *(uint8_t*)0x2000160c = 1;
  *(uint8_t*)0x2000160d = 0x81;
  *(uint8_t*)0x2000160e = 8;
  *(uint16_t*)0x2000160f = 0;
  *(uint8_t*)0x20001611 = 2;
  *(uint8_t*)0x20001612 = 6;
  *(uint8_t*)0x20001613 = 9;
  *(uint8_t*)0x20001614 = 5;
  *(uint8_t*)0x20001615 = 2;
  *(uint8_t*)0x20001616 = 2;
  *(uint16_t*)0x20001617 = 8;
  *(uint8_t*)0x20001619 = 0xb5;
  *(uint8_t*)0x2000161a = 9;
  *(uint8_t*)0x2000161b = 0x40;
  *(uint8_t*)0x2000161c = 9;
  *(uint8_t*)0x2000161d = 5;
  *(uint8_t*)0x2000161e = 0xb;
  *(uint8_t*)0x2000161f = 0x1a;
  *(uint16_t*)0x20001620 = 0x400;
  *(uint8_t*)0x20001622 = 1;
  *(uint8_t*)0x20001623 = 8;
  *(uint8_t*)0x20001624 = 9;
  *(uint8_t*)0x20001625 = 2;
  *(uint8_t*)0x20001626 = 0xc;
  *(uint8_t*)0x20001627 = 9;
  *(uint8_t*)0x20001628 = 5;
  *(uint8_t*)0x20001629 = 3;
  *(uint8_t*)0x2000162a = 0;
  *(uint16_t*)0x2000162b = 8;
  *(uint8_t*)0x2000162d = 0;
  *(uint8_t*)0x2000162e = 0x1f;
  *(uint8_t*)0x2000162f = 4;
  *(uint8_t*)0x20001630 = 7;
  *(uint8_t*)0x20001631 = 0x25;
  *(uint8_t*)0x20001632 = 1;
  *(uint8_t*)0x20001633 = 2;
  *(uint8_t*)0x20001634 = 0x62;
  *(uint16_t*)0x20001635 = 0;
  *(uint8_t*)0x20001637 = 2;
  *(uint8_t*)0x20001638 = 0xd;
  *(uint8_t*)0x20001639 = 9;
  *(uint8_t*)0x2000163a = 5;
  *(uint8_t*)0x2000163b = 3;
  *(uint8_t*)0x2000163c = 0;
  *(uint16_t*)0x2000163d = 0x10;
  *(uint8_t*)0x2000163f = 0x80;
  *(uint8_t*)0x20001640 = 0x81;
  *(uint8_t*)0x20001641 = 0x2d;
  *(uint8_t*)0x20001642 = 7;
  *(uint8_t*)0x20001643 = 0x25;
  *(uint8_t*)0x20001644 = 1;
  *(uint8_t*)0x20001645 = 0x80;
  *(uint8_t*)0x20001646 = 5;
  *(uint16_t*)0x20001647 = 0;
  *(uint8_t*)0x20001649 = 9;
  *(uint8_t*)0x2000164a = 5;
  *(uint8_t*)0x2000164b = 7;
  *(uint8_t*)0x2000164c = 1;
  *(uint16_t*)0x2000164d = 8;
  *(uint8_t*)0x2000164f = 4;
  *(uint8_t*)0x20001650 = 0x81;
  *(uint8_t*)0x20001651 = 4;
  *(uint8_t*)0x20001652 = 7;
  *(uint8_t*)0x20001653 = 0x25;
  *(uint8_t*)0x20001654 = 1;
  *(uint8_t*)0x20001655 = 0x80;
  *(uint8_t*)0x20001656 = 3;
  *(uint16_t*)0x20001657 = 3;
  *(uint8_t*)0x20001659 = 9;
  *(uint8_t*)0x2000165a = 5;
  *(uint8_t*)0x2000165b = 4;
  *(uint8_t*)0x2000165c = 0x14;
  *(uint16_t*)0x2000165d = 0x200;
  *(uint8_t*)0x2000165f = 1;
  *(uint8_t*)0x20001660 = 5;
  *(uint8_t*)0x20001661 = 6;
  *(uint8_t*)0x20001662 = 9;
  *(uint8_t*)0x20001663 = 5;
  *(uint8_t*)0x20001664 = 6;
  *(uint8_t*)0x20001665 = 0x10;
  *(uint16_t*)0x20001666 = 0x3ff;
  *(uint8_t*)0x20001668 = 0;
  *(uint8_t*)0x20001669 = 0x7f;
  *(uint8_t*)0x2000166a = 0xf7;
  *(uint8_t*)0x2000166b = 2;
  *(uint8_t*)0x2000166c = 5;
  *(uint8_t*)0x2000166d = 2;
  *(uint8_t*)0x2000166e = 0x11;
  *(uint32_t*)0x20001940 = 0;
  *(uint64_t*)0x20001944 = 0;
  *(uint32_t*)0x2000194c = 0;
  *(uint64_t*)0x20001950 = 0;
  *(uint32_t*)0x20001958 = 2;
  *(uint32_t*)0x2000195c = 0;
  *(uint64_t*)0x20001960 = 0;
  *(uint32_t*)0x20001968 = 0;
  *(uint64_t*)0x2000196c = 0;
  syz_usb_connect(3, 0xef, 0x20001580, 0x20001940);
  return 0;
}