// https://syzkaller.appspot.com/bug?id=913d2aba49b9fe78d0a2bbce30f1b70f069cd2ea
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.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/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/usb/ch9.h>

static unsigned long long procid;

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

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

#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 bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

#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);
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000) {
        continue;
      }
      kill_and_wait(pid, &status);
      break;
    }
  }
}

void execute_one(void)
{
  *(uint8_t*)0x20000a80 = 0x12;
  *(uint8_t*)0x20000a81 = 1;
  *(uint16_t*)0x20000a82 = 0x200;
  *(uint8_t*)0x20000a84 = 0xcf;
  *(uint8_t*)0x20000a85 = 0xf;
  *(uint8_t*)0x20000a86 = 0x48;
  *(uint8_t*)0x20000a87 = 0x20;
  *(uint16_t*)0x20000a88 = 0x10d6;
  *(uint16_t*)0x20000a8a = 0x2200;
  *(uint16_t*)0x20000a8c = 0x100;
  *(uint8_t*)0x20000a8e = 1;
  *(uint8_t*)0x20000a8f = 2;
  *(uint8_t*)0x20000a90 = 3;
  *(uint8_t*)0x20000a91 = 1;
  *(uint8_t*)0x20000a92 = 9;
  *(uint8_t*)0x20000a93 = 2;
  *(uint16_t*)0x20000a94 = 0x2a4;
  *(uint8_t*)0x20000a96 = 2;
  *(uint8_t*)0x20000a97 = 0;
  *(uint8_t*)0x20000a98 = 1;
  *(uint8_t*)0x20000a99 = 0x40;
  *(uint8_t*)0x20000a9a = 0x77;
  *(uint8_t*)0x20000a9b = 9;
  *(uint8_t*)0x20000a9c = 4;
  *(uint8_t*)0x20000a9d = 0xa6;
  *(uint8_t*)0x20000a9e = 0x56;
  *(uint8_t*)0x20000a9f = 0xd;
  *(uint8_t*)0x20000aa0 = 0xf6;
  *(uint8_t*)0x20000aa1 = 0xa6;
  *(uint8_t*)0x20000aa2 = 0xc0;
  *(uint8_t*)0x20000aa3 = -1;
  *(uint8_t*)0x20000aa4 = 9;
  *(uint8_t*)0x20000aa5 = 5;
  *(uint8_t*)0x20000aa6 = 0;
  *(uint8_t*)0x20000aa7 = 0;
  *(uint16_t*)0x20000aa8 = 8;
  *(uint8_t*)0x20000aaa = 6;
  *(uint8_t*)0x20000aab = 0;
  *(uint8_t*)0x20000aac = 0;
  *(uint8_t*)0x20000aad = 9;
  *(uint8_t*)0x20000aae = 5;
  *(uint8_t*)0x20000aaf = 8;
  *(uint8_t*)0x20000ab0 = 4;
  *(uint16_t*)0x20000ab1 = 0x400;
  *(uint8_t*)0x20000ab3 = 0;
  *(uint8_t*)0x20000ab4 = 0x54;
  *(uint8_t*)0x20000ab5 = 0xfe;
  *(uint8_t*)0x20000ab6 = 9;
  *(uint8_t*)0x20000ab7 = 5;
  *(uint8_t*)0x20000ab8 = 0xf;
  *(uint8_t*)0x20000ab9 = 2;
  *(uint16_t*)0x20000aba = 8;
  *(uint8_t*)0x20000abc = 0x20;
  *(uint8_t*)0x20000abd = 8;
  *(uint8_t*)0x20000abe = 6;
  *(uint8_t*)0x20000abf = 9;
  *(uint8_t*)0x20000ac0 = 5;
  *(uint8_t*)0x20000ac1 = 0xa;
  *(uint8_t*)0x20000ac2 = 8;
  *(uint16_t*)0x20000ac3 = 0x10;
  *(uint8_t*)0x20000ac5 = 8;
  *(uint8_t*)0x20000ac6 = 2;
  *(uint8_t*)0x20000ac7 = 1;
  *(uint8_t*)0x20000ac8 = 7;
  *(uint8_t*)0x20000ac9 = 0x25;
  *(uint8_t*)0x20000aca = 1;
  *(uint8_t*)0x20000acb = 0x81;
  *(uint8_t*)0x20000acc = 7;
  *(uint16_t*)0x20000acd = 9;
  *(uint8_t*)0x20000acf = 9;
  *(uint8_t*)0x20000ad0 = 5;
  *(uint8_t*)0x20000ad1 = 1;
  *(uint8_t*)0x20000ad2 = 1;
  *(uint16_t*)0x20000ad3 = 8;
  *(uint8_t*)0x20000ad5 = 0x7f;
  *(uint8_t*)0x20000ad6 = 0x20;
  *(uint8_t*)0x20000ad7 = 0;
  *(uint8_t*)0x20000ad8 = 7;
  *(uint8_t*)0x20000ad9 = 0x25;
  *(uint8_t*)0x20000ada = 1;
  *(uint8_t*)0x20000adb = 1;
  *(uint8_t*)0x20000adc = 0x53;
  *(uint16_t*)0x20000add = 0;
  *(uint8_t*)0x20000adf = 7;
  *(uint8_t*)0x20000ae0 = 0x25;
  *(uint8_t*)0x20000ae1 = 1;
  *(uint8_t*)0x20000ae2 = 2;
  *(uint8_t*)0x20000ae3 = 0;
  *(uint16_t*)0x20000ae4 = 0x1427;
  *(uint8_t*)0x20000ae6 = 9;
  *(uint8_t*)0x20000ae7 = 5;
  *(uint8_t*)0x20000ae8 = 8;
  *(uint8_t*)0x20000ae9 = 2;
  *(uint16_t*)0x20000aea = 0;
  *(uint8_t*)0x20000aec = 1;
  *(uint8_t*)0x20000aed = 2;
  *(uint8_t*)0x20000aee = 1;
  *(uint8_t*)0x20000aef = 7;
  *(uint8_t*)0x20000af0 = 0x25;
  *(uint8_t*)0x20000af1 = 1;
  *(uint8_t*)0x20000af2 = 0x80;
  *(uint8_t*)0x20000af3 = -1;
  *(uint16_t*)0x20000af4 = 0x7563;
  *(uint8_t*)0x20000af6 = 9;
  *(uint8_t*)0x20000af7 = 5;
  *(uint8_t*)0x20000af8 = 0xa;
  *(uint8_t*)0x20000af9 = 0;
  *(uint16_t*)0x20000afa = 0x20;
  *(uint8_t*)0x20000afc = 8;
  *(uint8_t*)0x20000afd = 0x1f;
  *(uint8_t*)0x20000afe = 0x1f;
  *(uint8_t*)0x20000aff = 7;
  *(uint8_t*)0x20000b00 = 0x25;
  *(uint8_t*)0x20000b01 = 1;
  *(uint8_t*)0x20000b02 = 0x80;
  *(uint8_t*)0x20000b03 = 0xfe;
  *(uint16_t*)0x20000b04 = 0x8000;
  *(uint8_t*)0x20000b06 = 7;
  *(uint8_t*)0x20000b07 = 0x25;
  *(uint8_t*)0x20000b08 = 1;
  *(uint8_t*)0x20000b09 = 0x80;
  *(uint8_t*)0x20000b0a = 6;
  *(uint16_t*)0x20000b0b = 0x81;
  *(uint8_t*)0x20000b0d = 9;
  *(uint8_t*)0x20000b0e = 5;
  *(uint8_t*)0x20000b0f = 1;
  *(uint8_t*)0x20000b10 = 0x10;
  *(uint16_t*)0x20000b11 = 0x200;
  *(uint8_t*)0x20000b13 = 7;
  *(uint8_t*)0x20000b14 = 0x20;
  *(uint8_t*)0x20000b15 = 5;
  *(uint8_t*)0x20000b16 = 7;
  *(uint8_t*)0x20000b17 = 0x25;
  *(uint8_t*)0x20000b18 = 1;
  *(uint8_t*)0x20000b19 = 2;
  *(uint8_t*)0x20000b1a = 3;
  *(uint16_t*)0x20000b1b = 0x7ff;
  *(uint8_t*)0x20000b1d = 0xb1;
  *(uint8_t*)0x20000b1e = 0x22;
  memcpy(
      (void*)0x20000b1f,
      "\x2b\xa7\x53\xd4\x20\xfa\xae\x81\x3d\xe0\xc2\x16\x2c\xa5\xe0\xdd\x14\x74"
      "\xb9\x84\xe4\xe1\x85\xe1\x63\x90\xf3\x47\x76\xfc\x15\xaf\xc2\xb8\x39\x91"
      "\x42\x65\xee\xfc\xaa\x77\x55\xb2\x37\x49\xb0\x90\x40\x0e\xc1\xc2\x8e\x6a"
      "\x3a\xf6\x36\x9e\xeb\xdc\x7e\x6a\x0d\x39\x79\xd4\x50\x47\x86\x3d\x00\x9b"
      "\x68\x33\x04\xcd\x37\x92\x1d\xbb\x07\xb8\x67\xb0\xe5\xbe\x9e\xbd\x0e\x43"
      "\x80\x2a\x18\x1a\x66\xdb\x6a\x9e\xd1\xc1\x4e\xb1\x77\x35\x93\x2b\x56\x6f"
      "\x93\x8f\x8a\x72\x51\x56\x42\x33\xe5\x13\x3b\xce\x24\x45\x93\x55\xa3\x6b"
      "\x85\x90\xcf\x1e\xc2\x04\xad\x1d\x62\x89\x96\x0e\x99\x4f\x9b\x60\x2d\xf9"
      "\xf6\x9e\x94\x43\x01\x7d\x81\xde\x79\xb0\x4c\xc3\x38\x2e\xbe\x00\x99\x12"
      "\x9d\x0e\x41\x48\x0a\x75\xf0\xce\x91\x84\x0e\xde\xac",
      175);
  *(uint8_t*)0x20000bce = 9;
  *(uint8_t*)0x20000bcf = 5;
  *(uint8_t*)0x20000bd0 = 0x80;
  *(uint8_t*)0x20000bd1 = 4;
  *(uint16_t*)0x20000bd2 = 0x200;
  *(uint8_t*)0x20000bd4 = 1;
  *(uint8_t*)0x20000bd5 = 8;
  *(uint8_t*)0x20000bd6 = 4;
  *(uint8_t*)0x20000bd7 = 7;
  *(uint8_t*)0x20000bd8 = 0x25;
  *(uint8_t*)0x20000bd9 = 1;
  *(uint8_t*)0x20000bda = 0x82;
  *(uint8_t*)0x20000bdb = 1;
  *(uint16_t*)0x20000bdc = 1;
  *(uint8_t*)0x20000bde = 9;
  *(uint8_t*)0x20000bdf = 5;
  *(uint8_t*)0x20000be0 = 7;
  *(uint8_t*)0x20000be1 = 0x10;
  *(uint16_t*)0x20000be2 = 0x20;
  *(uint8_t*)0x20000be4 = 0x81;
  *(uint8_t*)0x20000be5 = 0x40;
  *(uint8_t*)0x20000be6 = 4;
  *(uint8_t*)0x20000be7 = 0x6c;
  *(uint8_t*)0x20000be8 = 0xb;
  memcpy(
      (void*)0x20000be9,
      "\xf7\xb5\x2d\xdc\x81\xc1\x6a\x24\xd4\x8b\x4c\x87\x57\x21\xee\xe1\x22\xd4"
      "\x4b\x0b\x80\xc5\x08\x11\x29\xc3\x01\x18\x61\xa9\xad\xcc\x32\x26\x78\x75"
      "\x30\xe4\xe2\x76\x0d\x22\x85\xb9\xe6\xe1\xf2\x2c\x54\x77\xa0\x48\x66\x60"
      "\x4f\x7f\xfb\x3e\x8b\xf6\xfb\xc8\x34\x99\xcc\x3a\x8e\x68\x9c\x77\xee\x90"
      "\x48\x21\x44\x01\x6a\x2a\xf0\x41\x60\xcb\x8a\xe4\x9c\x8f\xef\xce\x41\xfe"
      "\xe5\xb0\x0a\x2b\x1c\xca\xf3\xb3\x32\xf1\xa3\x12\x7e\x43\xdb\xe8",
      106);
  *(uint8_t*)0x20000c53 = 0xa8;
  *(uint8_t*)0x20000c54 = 0xa;
  memcpy((void*)0x20000c55,
         "\x7c\xbe\x66\x68\x6a\xb0\x4b\x84\x2d\xa7\x1e\xb1\x09\x18\xc3\x9c\x41"
         "\x8d\x6f\x62\xc5\xf5\x34\x50\x15\xeb\x2f\xc7\xf1\x6c\x7d\xd6\xda\x0b"
         "\xf7\x82\xf6\xd9\x83\xca\xe5\x96\xdb\x3c\x63\x91\x39\x55\x7b\xf4\xd8"
         "\x0c\x7e\xad\xb6\x57\x9d\x2a\xff\x03\x4f\xe0\x7f\xae\xad\x4a\xe2\x9a"
         "\x9a\xb2\x81\xc1\x6d\x17\x63\x06\x21\xe4\x71\xbc\x40\x2b\x72\xd7\xbf"
         "\xb1\x59\xb2\x95\x48\x7a\x51\x1b\x6e\x7a\xf1\xd9\x82\xb9\x61\x14\x3c"
         "\x3c\x92\x2c\xa4\x0b\x63\xa2\xa0\x59\xb9\x8f\xe6\xf2\x38\xb9\xfe\xde"
         "\xaf\x80\x75\xf0\x4f\xf3\x7f\xf6\xca\x3c\x26\x47\x50\x6b\x17\xa7\x91"
         "\xa2\xe6\x0c\x4d\xf5\x35\x7f\xe0\x6e\xed\xb8\x5d\xef\x9a\x26\x3a\xe0"
         "\xbb\xbf\xc9\x7a\xb3\x78\x2f\x25\x11\x80\xe7\x96\x9f",
         166);
  *(uint8_t*)0x20000cfb = 9;
  *(uint8_t*)0x20000cfc = 5;
  *(uint8_t*)0x20000cfd = 4;
  *(uint8_t*)0x20000cfe = 0x10;
  *(uint16_t*)0x20000cff = 0x200;
  *(uint8_t*)0x20000d01 = 0x40;
  *(uint8_t*)0x20000d02 = 9;
  *(uint8_t*)0x20000d03 = 1;
  *(uint8_t*)0x20000d04 = 9;
  *(uint8_t*)0x20000d05 = 5;
  *(uint8_t*)0x20000d06 = 4;
  *(uint8_t*)0x20000d07 = 0x10;
  *(uint16_t*)0x20000d08 = 8;
  *(uint8_t*)0x20000d0a = 1;
  *(uint8_t*)0x20000d0b = 0x40;
  *(uint8_t*)0x20000d0c = 2;
  *(uint8_t*)0x20000d0d = 9;
  *(uint8_t*)0x20000d0e = 5;
  *(uint8_t*)0x20000d0f = 5;
  *(uint8_t*)0x20000d10 = 8;
  *(uint16_t*)0x20000d11 = 0x400;
  *(uint8_t*)0x20000d13 = 0x81;
  *(uint8_t*)0x20000d14 = 2;
  *(uint8_t*)0x20000d15 = 0;
  *(uint8_t*)0x20000d16 = 7;
  *(uint8_t*)0x20000d17 = 0x25;
  *(uint8_t*)0x20000d18 = 1;
  *(uint8_t*)0x20000d19 = 0;
  *(uint8_t*)0x20000d1a = 0x3f;
  *(uint16_t*)0x20000d1b = 0xfad0;
  *(uint8_t*)0x20000d1d = 9;
  *(uint8_t*)0x20000d1e = 4;
  *(uint8_t*)0x20000d1f = 0xba;
  *(uint8_t*)0x20000d20 = 4;
  *(uint8_t*)0x20000d21 = 1;
  *(uint8_t*)0x20000d22 = 2;
  *(uint8_t*)0x20000d23 = 2;
  *(uint8_t*)0x20000d24 = -1;
  *(uint8_t*)0x20000d25 = 0xa1;
  *(uint8_t*)0x20000d26 = 9;
  *(uint8_t*)0x20000d27 = 5;
  *(uint8_t*)0x20000d28 = 8;
  *(uint8_t*)0x20000d29 = 0x10;
  *(uint16_t*)0x20000d2a = 0x3ff;
  *(uint8_t*)0x20000d2c = 0x80;
  *(uint8_t*)0x20000d2d = 0xe;
  *(uint8_t*)0x20000d2e = 0x11;
  *(uint8_t*)0x20000d2f = 7;
  *(uint8_t*)0x20000d30 = 0x25;
  *(uint8_t*)0x20000d31 = 1;
  *(uint8_t*)0x20000d32 = 1;
  *(uint8_t*)0x20000d33 = 8;
  *(uint16_t*)0x20000d34 = 8;
  *(uint32_t*)0x20000fc0 = 0xa;
  *(uint64_t*)0x20000fc4 = 0x20000300;
  *(uint8_t*)0x20000300 = 0xa;
  *(uint8_t*)0x20000301 = 6;
  *(uint16_t*)0x20000302 = 0x200;
  *(uint8_t*)0x20000304 = 4;
  *(uint8_t*)0x20000305 = 5;
  *(uint8_t*)0x20000306 = 8;
  *(uint8_t*)0x20000307 = 0x20;
  *(uint8_t*)0x20000308 = 4;
  *(uint8_t*)0x20000309 = 0;
  *(uint32_t*)0x20000fcc = 0x11c;
  *(uint64_t*)0x20000fd0 = 0x20001040;
  *(uint8_t*)0x20001040 = 5;
  *(uint8_t*)0x20001041 = 0xf;
  *(uint16_t*)0x20001042 = 0xff69;
  *(uint8_t*)0x20001044 = 5;
  *(uint8_t*)0x20001045 = 7;
  *(uint8_t*)0x20001046 = 0x10;
  *(uint8_t*)0x20001047 = 2;
  STORE_BY_BITMASK(uint32_t, , 0x20001048, 0xe, 0, 8);
  STORE_BY_BITMASK(uint32_t, , 0x20001049, 3, 0, 4);
  STORE_BY_BITMASK(uint32_t, , 0x20001049, 6, 4, 4);
  STORE_BY_BITMASK(uint32_t, , 0x2000104a, 0x80, 0, 16);
  *(uint8_t*)0x2000104c = 0;
  *(uint8_t*)0x2000104d = 0x10;
  *(uint8_t*)0x2000104e = 3;
  *(uint8_t*)0x2000104f = 0;
  *(uint16_t*)0x20001050 = 0xa;
  *(uint8_t*)0x20001052 = 1;
  *(uint8_t*)0x20001053 = 0x40;
  *(uint16_t*)0x20001054 = 0x200;
  *(uint8_t*)0x20001056 = 0;
  *(uint8_t*)0x20001057 = 0x10;
  *(uint8_t*)0x20001058 = 3;
  *(uint8_t*)0x20001059 = 2;
  *(uint16_t*)0x2000105a = 2;
  *(uint8_t*)0x2000105c = 8;
  *(uint8_t*)0x2000105d = 7;
  *(uint16_t*)0x2000105e = 0x400;
  *(uint8_t*)0x20001060 = 0xa;
  *(uint8_t*)0x20001061 = 0x10;
  *(uint8_t*)0x20001062 = 3;
  *(uint8_t*)0x20001063 = 2;
  *(uint16_t*)0x20001064 = 0;
  *(uint8_t*)0x20001066 = 0x88;
  *(uint8_t*)0x20001067 = 7;
  *(uint16_t*)0x20001068 = 0xff81;
  *(uint8_t*)0x2000106a = 3;
  *(uint8_t*)0x2000106b = 0x10;
  *(uint8_t*)0x2000106c = 0xb;
  *(uint32_t*)0x20000fd8 = 4;
  *(uint32_t*)0x20000fdc = 0xbe;
  *(uint64_t*)0x20000fe0 = 0x20000e80;
  *(uint8_t*)0x20000e80 = 0;
  *(uint8_t*)0x20000e81 = 3;
  *(uint16_t*)0x20000e82 = 0x1007;
  *(uint32_t*)0x20000fe8 = 0x2e;
  *(uint64_t*)0x20000fec = 0x20000540;
  *(uint8_t*)0x20000540 = 0x2e;
  *(uint8_t*)0x20000541 = 3;
  memcpy((void*)0x20000542,
         "\x06\x5c\xe4\xfb\xdd\xad\x33\xe4\xf9\xce\xc0\x2a\x81\xb3\xac\x90\xb7"
         "\xe6\xab\xa9\x6c\x86\x41\x8d\x24\xbe\x39\x41\x66\x80\xc5\x27\x4e\xb0"
         "\x5b\xaa\x75\x91\x4a\x78\x8e\x82\xfb\x44",
         44);
  *(uint32_t*)0x20000ff4 = 0x5c;
  *(uint64_t*)0x20000ff8 = 0x20000f40;
  *(uint8_t*)0x20000f40 = 0x5c;
  *(uint8_t*)0x20000f41 = 3;
  memcpy((void*)0x20000f42,
         "\x98\x7b\xbb\x2b\x1f\x80\x7e\x6a\xf5\xd5\x48\x50\xf2\x8d\xc0\xc3\x28"
         "\xca\x11\x61\x7c\xc5\x4e\xbe\x77\xce\x28\x26\xf6\x98\x7b\xb7\x89\x71"
         "\xd8\xa6\xe8\xb0\xbb\x7e\x30\x79\xa0\x99\x89\x0a\xa8\x86\x8a\x14\xfd"
         "\x24\x64\x79\xee\x71\x42\x1f\x5f\x40\xdb\x34\x66\x85\x90\xa1\xee\x0d"
         "\x4c\x55\x4d\x78\x42\x0e\x09\x51\xae\x7b\xdd\x4c\x4b\xfe\xc1\xd7\x8a"
         "\xf4\x71\xe6\x60\xf6",
         90);
  *(uint32_t*)0x20001000 = 0x26;
  *(uint64_t*)0x20001004 = 0x20000580;
  *(uint8_t*)0x20000580 = 0;
  *(uint8_t*)0x20000581 = 3;
  *(uint16_t*)0x20000582 = 0x44e;
  syz_usb_connect(0, 0x2b6, 0x20000a80, 0x20000fc0);
}
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);
  loop();
  return 0;
}