// https://syzkaller.appspot.com/bug?id=378c929b412e1ceac0d515df2156365827384ba4
// 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;
}

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 < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

void execute_one(void)
{
  *(uint8_t*)0x20000280 = 0x12;
  *(uint8_t*)0x20000281 = 1;
  *(uint16_t*)0x20000282 = 0;
  *(uint8_t*)0x20000284 = 0x86;
  *(uint8_t*)0x20000285 = 0xb7;
  *(uint8_t*)0x20000286 = 0x34;
  *(uint8_t*)0x20000287 = 0x20;
  *(uint16_t*)0x20000288 = 0xeb1a;
  *(uint16_t*)0x2000028a = 0x5051;
  *(uint16_t*)0x2000028c = 0x1494;
  *(uint8_t*)0x2000028e = 1;
  *(uint8_t*)0x2000028f = 2;
  *(uint8_t*)0x20000290 = 3;
  *(uint8_t*)0x20000291 = 1;
  *(uint8_t*)0x20000292 = 9;
  *(uint8_t*)0x20000293 = 2;
  *(uint16_t*)0x20000294 = 0x118;
  *(uint8_t*)0x20000296 = 1;
  *(uint8_t*)0x20000297 = 0;
  *(uint8_t*)0x20000298 = 0;
  *(uint8_t*)0x20000299 = 0;
  *(uint8_t*)0x2000029a = 2;
  *(uint8_t*)0x2000029b = 9;
  *(uint8_t*)0x2000029c = 4;
  *(uint8_t*)0x2000029d = 0xc0;
  *(uint8_t*)0x2000029e = 8;
  *(uint8_t*)0x2000029f = 0x10;
  *(uint8_t*)0x200002a0 = 0xf9;
  *(uint8_t*)0x200002a1 = 0x88;
  *(uint8_t*)0x200002a2 = 0xc0;
  *(uint8_t*)0x200002a3 = 3;
  *(uint8_t*)0x200002a4 = 9;
  *(uint8_t*)0x200002a5 = 5;
  *(uint8_t*)0x200002a6 = 0;
  *(uint8_t*)0x200002a7 = 0x10;
  *(uint16_t*)0x200002a8 = 0x3ff;
  *(uint8_t*)0x200002aa = 5;
  *(uint8_t*)0x200002ab = 3;
  *(uint8_t*)0x200002ac = 0xc3;
  *(uint8_t*)0x200002ad = 7;
  *(uint8_t*)0x200002ae = 0x25;
  *(uint8_t*)0x200002af = 1;
  *(uint8_t*)0x200002b0 = 0x80;
  *(uint8_t*)0x200002b1 = 0xf6;
  *(uint16_t*)0x200002b2 = 6;
  *(uint8_t*)0x200002b4 = 9;
  *(uint8_t*)0x200002b5 = 5;
  *(uint8_t*)0x200002b6 = 0xb;
  *(uint8_t*)0x200002b7 = 0x10;
  *(uint16_t*)0x200002b8 = 0x400;
  *(uint8_t*)0x200002ba = 4;
  *(uint8_t*)0x200002bb = 0x2f;
  *(uint8_t*)0x200002bc = -1;
  *(uint8_t*)0x200002bd = 7;
  *(uint8_t*)0x200002be = 0x25;
  *(uint8_t*)0x200002bf = 1;
  *(uint8_t*)0x200002c0 = 1;
  *(uint8_t*)0x200002c1 = 4;
  *(uint16_t*)0x200002c2 = 5;
  *(uint8_t*)0x200002c4 = 9;
  *(uint8_t*)0x200002c5 = 5;
  *(uint8_t*)0x200002c6 = 0xf;
  *(uint8_t*)0x200002c7 = 0x10;
  *(uint16_t*)0x200002c8 = 0x3ff;
  *(uint8_t*)0x200002ca = 7;
  *(uint8_t*)0x200002cb = 0x81;
  *(uint8_t*)0x200002cc = 0x20;
  *(uint8_t*)0x200002cd = 7;
  *(uint8_t*)0x200002ce = 0x25;
  *(uint8_t*)0x200002cf = 1;
  *(uint8_t*)0x200002d0 = 0x80;
  *(uint8_t*)0x200002d1 = -1;
  *(uint16_t*)0x200002d2 = 4;
  *(uint8_t*)0x200002d4 = 9;
  *(uint8_t*)0x200002d5 = 5;
  *(uint8_t*)0x200002d6 = 0xa;
  *(uint8_t*)0x200002d7 = 1;
  *(uint16_t*)0x200002d8 = 0x3ff;
  *(uint8_t*)0x200002da = 2;
  *(uint8_t*)0x200002db = 0x80;
  *(uint8_t*)0x200002dc = 7;
  *(uint8_t*)0x200002dd = 9;
  *(uint8_t*)0x200002de = 5;
  *(uint8_t*)0x200002df = 0x80;
  *(uint8_t*)0x200002e0 = 0;
  *(uint16_t*)0x200002e1 = 0x200;
  *(uint8_t*)0x200002e3 = 0x29;
  *(uint8_t*)0x200002e4 = 0x81;
  *(uint8_t*)0x200002e5 = 3;
  *(uint8_t*)0x200002e6 = 9;
  *(uint8_t*)0x200002e7 = 5;
  *(uint8_t*)0x200002e8 = 7;
  *(uint8_t*)0x200002e9 = 0x10;
  *(uint16_t*)0x200002ea = 0x20;
  *(uint8_t*)0x200002ec = 0;
  *(uint8_t*)0x200002ed = 0x80;
  *(uint8_t*)0x200002ee = 0;
  *(uint8_t*)0x200002ef = 9;
  *(uint8_t*)0x200002f0 = 5;
  *(uint8_t*)0x200002f1 = 6;
  *(uint8_t*)0x200002f2 = 0x10;
  *(uint16_t*)0x200002f3 = 0x40;
  *(uint8_t*)0x200002f5 = 1;
  *(uint8_t*)0x200002f6 = 9;
  *(uint8_t*)0x200002f7 = 4;
  *(uint8_t*)0x200002f8 = 7;
  *(uint8_t*)0x200002f9 = 0x25;
  *(uint8_t*)0x200002fa = 1;
  *(uint8_t*)0x200002fb = 0x81;
  *(uint8_t*)0x200002fc = 0x6c;
  *(uint16_t*)0x200002fd = 0;
  *(uint8_t*)0x200002ff = 7;
  *(uint8_t*)0x20000300 = 0x25;
  *(uint8_t*)0x20000301 = 1;
  *(uint8_t*)0x20000302 = 0;
  *(uint8_t*)0x20000303 = -1;
  *(uint16_t*)0x20000304 = 0xa2;
  *(uint8_t*)0x20000306 = 9;
  *(uint8_t*)0x20000307 = 5;
  *(uint8_t*)0x20000308 = 4;
  *(uint8_t*)0x20000309 = 1;
  *(uint16_t*)0x2000030a = 8;
  *(uint8_t*)0x2000030c = 3;
  *(uint8_t*)0x2000030d = 9;
  *(uint8_t*)0x2000030e = 2;
  *(uint8_t*)0x2000030f = 9;
  *(uint8_t*)0x20000310 = 5;
  *(uint8_t*)0x20000311 = 9;
  *(uint8_t*)0x20000312 = 0;
  *(uint16_t*)0x20000313 = 0x3ff;
  *(uint8_t*)0x20000315 = 5;
  *(uint8_t*)0x20000316 = 6;
  *(uint8_t*)0x20000317 = 0x20;
  *(uint8_t*)0x20000318 = 0x31;
  *(uint8_t*)0x20000319 = 5;
  memcpy((void*)0x2000031a, "\x82\x48\x33\xd6\x6a\x45\x0d\x97\xf7\x86\x46\xe7"
                            "\x25\xdf\xee\xcc\x79\x3f\x83\xed\xf3\x38\xa3\xfd"
                            "\x4d\x32\x58\x3a\xb6\x0b\x56\x10\x4c\x52\x9c\x2f"
                            "\x49\x0b\x4f\x51\x44\xa6\xd6\x77\x09\x7f\xfa",
         47);
  *(uint8_t*)0x20000349 = 7;
  *(uint8_t*)0x2000034a = 0x25;
  *(uint8_t*)0x2000034b = 1;
  *(uint8_t*)0x2000034c = 1;
  *(uint8_t*)0x2000034d = 8;
  *(uint16_t*)0x2000034e = 0x60;
  *(uint8_t*)0x20000350 = 9;
  *(uint8_t*)0x20000351 = 5;
  *(uint8_t*)0x20000352 = 4;
  *(uint8_t*)0x20000353 = 0;
  *(uint16_t*)0x20000354 = 0x3ff;
  *(uint8_t*)0x20000356 = 0;
  *(uint8_t*)0x20000357 = 4;
  *(uint8_t*)0x20000358 = 0xde;
  *(uint8_t*)0x20000359 = 9;
  *(uint8_t*)0x2000035a = 5;
  *(uint8_t*)0x2000035b = 0xe;
  *(uint8_t*)0x2000035c = 0xe;
  *(uint16_t*)0x2000035d = 0x40;
  *(uint8_t*)0x2000035f = 0xc1;
  *(uint8_t*)0x20000360 = 6;
  *(uint8_t*)0x20000361 = 0xdf;
  *(uint8_t*)0x20000362 = 9;
  *(uint8_t*)0x20000363 = 5;
  *(uint8_t*)0x20000364 = 0;
  *(uint8_t*)0x20000365 = 0;
  *(uint16_t*)0x20000366 = 0x200;
  *(uint8_t*)0x20000368 = 9;
  *(uint8_t*)0x20000369 = 5;
  *(uint8_t*)0x2000036a = 1;
  *(uint8_t*)0x2000036b = 7;
  *(uint8_t*)0x2000036c = 0x25;
  *(uint8_t*)0x2000036d = 1;
  *(uint8_t*)0x2000036e = 0x83;
  *(uint8_t*)0x2000036f = 0x3f;
  *(uint16_t*)0x20000370 = 0x80;
  *(uint8_t*)0x20000372 = 9;
  *(uint8_t*)0x20000373 = 5;
  *(uint8_t*)0x20000374 = 7;
  *(uint8_t*)0x20000375 = 1;
  *(uint16_t*)0x20000376 = 0x200;
  *(uint8_t*)0x20000378 = 0x3f;
  *(uint8_t*)0x20000379 = 8;
  *(uint8_t*)0x2000037a = 0x3f;
  *(uint8_t*)0x2000037b = 2;
  *(uint8_t*)0x2000037c = 6;
  *(uint8_t*)0x2000037d = 7;
  *(uint8_t*)0x2000037e = 0x25;
  *(uint8_t*)0x2000037f = 1;
  *(uint8_t*)0x20000380 = 0;
  *(uint8_t*)0x20000381 = 0x8c;
  *(uint16_t*)0x20000382 = 0;
  *(uint8_t*)0x20000384 = 9;
  *(uint8_t*)0x20000385 = 5;
  *(uint8_t*)0x20000386 = 6;
  *(uint8_t*)0x20000387 = 0;
  *(uint16_t*)0x20000388 = 0x10;
  *(uint8_t*)0x2000038a = 0x81;
  *(uint8_t*)0x2000038b = 0x81;
  *(uint8_t*)0x2000038c = 5;
  *(uint8_t*)0x2000038d = 7;
  *(uint8_t*)0x2000038e = 0x25;
  *(uint8_t*)0x2000038f = 1;
  *(uint8_t*)0x20000390 = 0x83;
  *(uint8_t*)0x20000391 = 0xb6;
  *(uint16_t*)0x20000392 = 0x36;
  *(uint8_t*)0x20000394 = 2;
  *(uint8_t*)0x20000395 = 0xe;
  *(uint8_t*)0x20000396 = 9;
  *(uint8_t*)0x20000397 = 5;
  *(uint8_t*)0x20000398 = 0xe;
  *(uint8_t*)0x20000399 = 0;
  *(uint16_t*)0x2000039a = 0x3ff;
  *(uint8_t*)0x2000039c = 0;
  *(uint8_t*)0x2000039d = 0x62;
  *(uint8_t*)0x2000039e = 7;
  *(uint8_t*)0x2000039f = 2;
  *(uint8_t*)0x200003a0 = 0xb;
  *(uint8_t*)0x200003a1 = 9;
  *(uint8_t*)0x200003a2 = 5;
  *(uint8_t*)0x200003a3 = 7;
  *(uint8_t*)0x200003a4 = 0x10;
  *(uint16_t*)0x200003a5 = 0x200;
  *(uint8_t*)0x200003a7 = 4;
  *(uint8_t*)0x200003a8 = 0x33;
  *(uint8_t*)0x200003a9 = 8;
  syz_usb_connect(0, 0x12a, 0x20000280, 0);
}
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);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}