// https://syzkaller.appspot.com/bug?id=1d8a369c2af45bcdebe228d10ac34d0b69606e45
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dev/usb/usb.h>
#include <dev/usb/usbhid.h>
#include <dev/usb/vhci.h>
#include <endian.h>
#include <fcntl.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

static unsigned long long procid;

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

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;
}

/* -------------------------------------------------------------------------- */

/*
 * Redefinitions to match the linux types used in common_usb.h.
 */

struct usb_endpoint_descriptor {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint8_t bEndpointAddress;
  uint8_t bmAttributes;
  uint16_t wMaxPacketSize;
  uint8_t bInterval;
  uint8_t bRefresh;
  uint8_t bSynchAddress;
} __attribute__((packed));

struct usb_device_descriptor {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint16_t bcdUSB;
  uint8_t bDeviceClass;
  uint8_t bDeviceSubClass;
  uint8_t bDeviceProtocol;
  uint8_t bMaxPacketSize0;
  uint16_t idVendor;
  uint16_t idProduct;
  uint16_t bcdDevice;
  uint8_t iManufacturer;
  uint8_t iProduct;
  uint8_t iSerialNumber;
  uint8_t bNumConfigurations;
} __attribute__((packed));

struct usb_config_descriptor {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint16_t wTotalLength;
  uint8_t bNumInterfaces;
  uint8_t bConfigurationValue;
  uint8_t iConfiguration;
  uint8_t bmAttributes;
  uint8_t bMaxPower;
} __attribute__((packed));

struct usb_interface_descriptor {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint8_t bInterfaceNumber;
  uint8_t bAlternateSetting;
  uint8_t bNumEndpoints;
  uint8_t bInterfaceClass;
  uint8_t bInterfaceSubClass;
  uint8_t bInterfaceProtocol;
  uint8_t iInterface;
} __attribute__((packed));

struct usb_ctrlrequest {
  uint8_t bRequestType;
  uint8_t bRequest;
  uint16_t wValue;
  uint16_t wIndex;
  uint16_t wLength;
} __attribute__((packed));

struct usb_qualifier_descriptor {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint16_t bcdUSB;
  uint8_t bDeviceClass;
  uint8_t bDeviceSubClass;
  uint8_t bDeviceProtocol;
  uint8_t bMaxPacketSize0;
  uint8_t bNumConfigurations;
  uint8_t bRESERVED;
} __attribute__((packed));

#define USB_TYPE_MASK (0x03 << 5)
#define USB_TYPE_STANDARD (0x00 << 5)
#define USB_TYPE_CLASS (0x01 << 5)
#define USB_TYPE_VENDOR (0x02 << 5)
#define USB_TYPE_RESERVED (0x03 << 5)

#define USB_DT_DEVICE 0x01
#define USB_DT_CONFIG 0x02
#define USB_DT_STRING 0x03
#define USB_DT_INTERFACE 0x04
#define USB_DT_ENDPOINT 0x05
#define USB_DT_DEVICE_QUALIFIER 0x06
#define USB_DT_OTHER_SPEED_CONFIG 0x07
#define USB_DT_INTERFACE_POWER 0x08
#define USB_DT_OTG 0x09
#define USB_DT_DEBUG 0x0a
#define USB_DT_INTERFACE_ASSOCIATION 0x0b
#define USB_DT_SECURITY 0x0c
#define USB_DT_KEY 0x0d
#define USB_DT_ENCRYPTION_TYPE 0x0e
#define USB_DT_BOS 0x0f
#define USB_DT_DEVICE_CAPABILITY 0x10
#define USB_DT_WIRELESS_ENDPOINT_COMP 0x11
#define USB_DT_WIRE_ADAPTER 0x21
#define USB_DT_RPIPE 0x22
#define USB_DT_CS_RADIO_CONTROL 0x23
#define USB_DT_PIPE_USAGE 0x24
#define USB_DT_SS_ENDPOINT_COMP 0x30
#define USB_DT_SSP_ISOC_ENDPOINT_COMP 0x31

#define USB_REQ_GET_STATUS 0x00
#define USB_REQ_CLEAR_FEATURE 0x01
#define USB_REQ_SET_FEATURE 0x03
#define USB_REQ_SET_ADDRESS 0x05
#define USB_REQ_GET_DESCRIPTOR 0x06
#define USB_REQ_SET_DESCRIPTOR 0x07
#define USB_REQ_GET_CONFIGURATION 0x08
#define USB_REQ_SET_CONFIGURATION 0x09
#define USB_REQ_GET_INTERFACE 0x0A
#define USB_REQ_SET_INTERFACE 0x0B
#define USB_REQ_SYNCH_FRAME 0x0C
#define USB_REQ_SET_SEL 0x30
#define USB_REQ_SET_ISOCH_DELAY 0x31

#define USB_REQ_SET_ENCRYPTION 0x0D
#define USB_REQ_GET_ENCRYPTION 0x0E
#define USB_REQ_RPIPE_ABORT 0x0E
#define USB_REQ_SET_HANDSHAKE 0x0F
#define USB_REQ_RPIPE_RESET 0x0F
#define USB_REQ_GET_HANDSHAKE 0x10
#define USB_REQ_SET_CONNECTION 0x11
#define USB_REQ_SET_SECURITY_DATA 0x12
#define USB_REQ_GET_SECURITY_DATA 0x13
#define USB_REQ_SET_WUSB_DATA 0x14
#define USB_REQ_LOOPBACK_DATA_WRITE 0x15
#define USB_REQ_LOOPBACK_DATA_READ 0x16
#define USB_REQ_SET_INTERFACE_DS 0x17

#define USB_REQ_GET_PARTNER_PDO 20
#define USB_REQ_GET_BATTERY_STATUS 21
#define USB_REQ_SET_PDO 22
#define USB_REQ_GET_VDM 23
#define USB_REQ_SEND_VDM 24

#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;
  int rv = 0;
  rv = parse_usb_descriptor(dev, dev_len, &usb_devices[i].index);
  if (!rv)
    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)
{
  int i;
  for (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;
}

/* -------------------------------------------------------------------------- */

static int vhci_open(void)
{
  return open("/dev/vhci", O_RDWR);
}

static int vhci_setport(int fd, u_int port)
{
  struct vhci_ioc_set_port args;
  args.port = port;
  return ioctl(fd, VHCI_IOC_SET_PORT, &args);
}

static int vhci_usb_attach(int fd)
{
  return ioctl(fd, VHCI_IOC_USB_ATTACH, NULL);
}

static int vhci_usb_recv(int fd, void* buf, size_t size)
{
  uint8_t* ptr = (uint8_t*)buf;
  ssize_t done;
  while (1) {
    done = read(fd, ptr, size);
    if (done < 0)
      return -1;
    if ((size_t)done == size)
      return 0;
    size -= done;
    ptr += done;
  }
}

static int vhci_usb_send(int fd, void* buf, size_t size)
{
  uint8_t* ptr = (uint8_t*)buf;
  ssize_t done;
  while (1) {
    done = write(fd, ptr, size);
    if (done <= 0)
      return -1;
    if ((size_t)done == size)
      return 0;
    size -= done;
    ptr += done;
  }
}

/* -------------------------------------------------------------------------- */

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)
{
  struct usb_device_index* index;
  int portnum, fd, rv;
  bool done;
  portnum = procid + 1;
  if (!dev) {
    return -1;
  }
  if (portnum != 1) {
    /* For now, we support only one proc. */
    return -1;
  }
  fd = vhci_open();
  if (fd < 0) {
    return -1;
  }
  index = add_usb_index(fd, dev, dev_len);
  if (!index) {
    goto err;
  }
  rv = vhci_setport(fd, portnum);
  if (rv != 0) {
    goto err;
  }
  rv = vhci_usb_attach(fd);
  if (rv != 0) {
    goto err;
  }
  done = false;
  while (!done) {
    vhci_request_t req;
    rv = vhci_usb_recv(fd, &req, sizeof(req));
    if (rv != 0) {
      goto err;
    }
    if (req.type != VHCI_REQ_CTRL) {
      goto err;
    }
    char* response_data = NULL;
    uint32_t response_length = 0;
    char data[4096];
    if (req.u.ctrl.bmRequestType & UE_DIR_IN) {
      bool response_found = false;
      response_found = lookup_connect_response_in(
          fd, descs, (const struct usb_ctrlrequest*)&req.u.ctrl, &response_data,
          &response_length);
      if (!response_found) {
        goto err;
      }
    } else {
      if (!lookup_connect_response_out(
              fd, descs, (const struct usb_ctrlrequest*)&req.u.ctrl, &done)) {
        goto err;
      }
      response_data = NULL;
      response_length = UGETW(req.u.ctrl.wLength);
    }
    if ((req.u.ctrl.bmRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD &&
        req.u.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) {
      /* TODO: possibly revisit */
    }
    if (response_length > sizeof(data))
      response_length = 0;
    if ((uint32_t)UGETW(req.u.ctrl.wLength) < response_length)
      response_length = UGETW(req.u.ctrl.wLength);
    if (response_data)
      memcpy(data, response_data, response_length);
    else
      memset(data, 0, response_length);
    if (req.u.ctrl.bmRequestType & UE_DIR_IN) {
      if (response_length > 0) {
        vhci_response_t res;
        res.size = response_length;
        rv = vhci_usb_send(fd, &res, sizeof(res));
        if (rv == 0)
          rv = vhci_usb_send(fd, data, response_length);
      }
    } else {
      rv = vhci_usb_recv(fd, data, response_length);
    }
    if (rv < 0) {
      goto err;
    }
  }
  sleep_ms(200);
  return fd;

err:
  close(fd);
  return -1;
}

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 execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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;
    }
  }
}

#ifndef SYS_chdir
#define SYS_chdir 12
#endif
#ifndef SYS_chroot
#define SYS_chroot 61
#endif
#ifndef SYS_close
#define SYS_close 6
#endif
#ifndef SYS_mknodat
#define SYS_mknodat 460
#endif
#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_sendto
#define SYS_sendto 133
#endif

void execute_one(void)
{
  *(uint8_t*)0x200000c0 = 0x12;
  *(uint8_t*)0x200000c1 = 1;
  *(uint16_t*)0x200000c2 = 0x300;
  *(uint8_t*)0x200000c4 = 2;
  *(uint8_t*)0x200000c5 = 0;
  *(uint8_t*)0x200000c6 = 0;
  *(uint8_t*)0x200000c7 = 0x10;
  *(uint16_t*)0x200000c8 = 0x525;
  *(uint16_t*)0x200000ca = 0xa4a1;
  *(uint16_t*)0x200000cc = 0x40;
  *(uint8_t*)0x200000ce = 1;
  *(uint8_t*)0x200000cf = 2;
  *(uint8_t*)0x200000d0 = 3;
  *(uint8_t*)0x200000d1 = 1;
  *(uint8_t*)0x200000d2 = 9;
  *(uint8_t*)0x200000d3 = 2;
  *(uint16_t*)0x200000d4 = 0x86;
  *(uint8_t*)0x200000d6 = 2;
  *(uint8_t*)0x200000d7 = 1;
  *(uint8_t*)0x200000d8 = 2;
  *(uint8_t*)0x200000d9 = 0x20;
  *(uint8_t*)0x200000da = 0x20;
  *(uint8_t*)0x200000db = 9;
  *(uint8_t*)0x200000dc = 4;
  *(uint8_t*)0x200000dd = 0;
  *(uint8_t*)0x200000de = 0;
  *(uint8_t*)0x200000df = 1;
  *(uint8_t*)0x200000e0 = 2;
  *(uint8_t*)0x200000e1 = 0xd;
  *(uint8_t*)0x200000e2 = 0;
  *(uint8_t*)0x200000e3 = 0;
  *(uint8_t*)0x200000e4 = 5;
  *(uint8_t*)0x200000e5 = 0x24;
  *(uint8_t*)0x200000e6 = 6;
  *(uint8_t*)0x200000e7 = 0;
  *(uint8_t*)0x200000e8 = 1;
  *(uint8_t*)0x200000e9 = 5;
  *(uint8_t*)0x200000ea = 0x24;
  *(uint8_t*)0x200000eb = 0;
  *(uint16_t*)0x200000ec = 0x1f;
  *(uint8_t*)0x200000ee = 0xd;
  *(uint8_t*)0x200000ef = 0x24;
  *(uint8_t*)0x200000f0 = 0xf;
  *(uint8_t*)0x200000f1 = 1;
  *(uint32_t*)0x200000f2 = 8;
  *(uint16_t*)0x200000f6 = 0xa4a8;
  *(uint16_t*)0x200000f8 = 8;
  *(uint8_t*)0x200000fa = 0;
  *(uint8_t*)0x200000fb = 6;
  *(uint8_t*)0x200000fc = 0x24;
  *(uint8_t*)0x200000fd = 0x1a;
  *(uint16_t*)0x200000fe = 3;
  *(uint8_t*)0x20000100 = 8;
  *(uint8_t*)0x20000101 = 0x15;
  *(uint8_t*)0x20000102 = 0x24;
  *(uint8_t*)0x20000103 = 0x12;
  *(uint16_t*)0x20000104 = 5;
  *(uint64_t*)0x20000106 = 0x14f5e048ba817a3;
  *(uint64_t*)0x2000010e = 0x2a397ecbffc007a6;
  *(uint8_t*)0x20000116 = 0x15;
  *(uint8_t*)0x20000117 = 0x24;
  *(uint8_t*)0x20000118 = 0x12;
  *(uint16_t*)0x20000119 = 0x401;
  *(uint64_t*)0x2000011b = 0x14f5e048ba817a3;
  *(uint64_t*)0x20000123 = 0x2a397ecbffc007a6;
  *(uint8_t*)0x2000012b = 9;
  *(uint8_t*)0x2000012c = 5;
  *(uint8_t*)0x2000012d = 0x81;
  *(uint8_t*)0x2000012e = 3;
  *(uint16_t*)0x2000012f = 0x3ff;
  *(uint8_t*)0x20000131 = 0xf9;
  *(uint8_t*)0x20000132 = 6;
  *(uint8_t*)0x20000133 = 0x40;
  *(uint8_t*)0x20000134 = 9;
  *(uint8_t*)0x20000135 = 4;
  *(uint8_t*)0x20000136 = 1;
  *(uint8_t*)0x20000137 = 0;
  *(uint8_t*)0x20000138 = 0;
  *(uint8_t*)0x20000139 = 2;
  *(uint8_t*)0x2000013a = 0xd;
  *(uint8_t*)0x2000013b = 0;
  *(uint8_t*)0x2000013c = 0;
  *(uint8_t*)0x2000013d = 9;
  *(uint8_t*)0x2000013e = 4;
  *(uint8_t*)0x2000013f = 1;
  *(uint8_t*)0x20000140 = 1;
  *(uint8_t*)0x20000141 = 2;
  *(uint8_t*)0x20000142 = 2;
  *(uint8_t*)0x20000143 = 0xd;
  *(uint8_t*)0x20000144 = 0;
  *(uint8_t*)0x20000145 = 0;
  *(uint8_t*)0x20000146 = 9;
  *(uint8_t*)0x20000147 = 5;
  *(uint8_t*)0x20000148 = 0x82;
  *(uint8_t*)0x20000149 = 2;
  *(uint16_t*)0x2000014a = 0x200;
  *(uint8_t*)0x2000014c = 0;
  *(uint8_t*)0x2000014d = 5;
  *(uint8_t*)0x2000014e = 9;
  *(uint8_t*)0x2000014f = 9;
  *(uint8_t*)0x20000150 = 5;
  *(uint8_t*)0x20000151 = 3;
  *(uint8_t*)0x20000152 = 2;
  *(uint16_t*)0x20000153 = 0x400;
  *(uint8_t*)0x20000155 = 0;
  *(uint8_t*)0x20000156 = 0x20;
  *(uint8_t*)0x20000157 = 0x1f;
  syz_usb_connect(5, 0x98, 0x200000c0, 0);
  *(uint8_t*)0x20000300 = 0x12;
  *(uint8_t*)0x20000301 = 1;
  *(uint16_t*)0x20000302 = 0x201;
  *(uint8_t*)0x20000304 = 0;
  *(uint8_t*)0x20000305 = 0;
  *(uint8_t*)0x20000306 = 0;
  *(uint8_t*)0x20000307 = 0x40;
  *(uint16_t*)0x20000308 = 0x525;
  *(uint16_t*)0x2000030a = 0xa4a8;
  *(uint16_t*)0x2000030c = 0x40;
  *(uint8_t*)0x2000030e = 1;
  *(uint8_t*)0x2000030f = 2;
  *(uint8_t*)0x20000310 = 3;
  *(uint8_t*)0x20000311 = 1;
  *(uint8_t*)0x20000312 = 9;
  *(uint8_t*)0x20000313 = 2;
  *(uint16_t*)0x20000314 = 0x24;
  *(uint8_t*)0x20000316 = 1;
  *(uint8_t*)0x20000317 = 1;
  *(uint8_t*)0x20000318 = 1;
  *(uint8_t*)0x20000319 = 0;
  *(uint8_t*)0x2000031a = 6;
  *(uint8_t*)0x2000031b = 9;
  *(uint8_t*)0x2000031c = 4;
  *(uint8_t*)0x2000031d = 0;
  *(uint8_t*)0x2000031e = 1;
  *(uint8_t*)0x2000031f = 1;
  *(uint8_t*)0x20000320 = 7;
  *(uint8_t*)0x20000321 = 1;
  *(uint8_t*)0x20000322 = 1;
  *(uint8_t*)0x20000323 = 9;
  *(uint8_t*)0x20000324 = 9;
  *(uint8_t*)0x20000325 = 5;
  *(uint8_t*)0x20000326 = 1;
  *(uint8_t*)0x20000327 = 2;
  *(uint16_t*)0x20000328 = 0x3ff;
  *(uint8_t*)0x2000032a = 0x68;
  *(uint8_t*)0x2000032b = 0x20;
  *(uint8_t*)0x2000032c = 7;
  *(uint8_t*)0x2000032d = 9;
  *(uint8_t*)0x2000032e = 5;
  *(uint8_t*)0x2000032f = 0x82;
  *(uint8_t*)0x20000330 = 2;
  *(uint16_t*)0x20000331 = 0x40;
  *(uint8_t*)0x20000333 = 7;
  *(uint8_t*)0x20000334 = 0x81;
  *(uint8_t*)0x20000335 = 3;
  syz_usb_connect(1, 0x36, 0x20000300, 0);
  syscall(SYS_close, -1);
  syscall(SYS_mknodat, -1, 0ul, 0x10ul, 3);
  syscall(SYS_sendto, -1, 0ul, 0ul, 0x400ul, 0ul, 0ul);
  syscall(SYS_chdir, 0ul);
  *(uint8_t*)0x20001000 = 0x12;
  *(uint8_t*)0x20001001 = 1;
  *(uint16_t*)0x20001002 = 0x200;
  *(uint8_t*)0x20001004 = 0;
  *(uint8_t*)0x20001005 = 0;
  *(uint8_t*)0x20001006 = 0;
  *(uint8_t*)0x20001007 = 8;
  *(uint16_t*)0x20001008 = 0;
  *(uint16_t*)0x2000100a = 0;
  *(uint16_t*)0x2000100c = 0;
  *(uint8_t*)0x2000100e = 1;
  *(uint8_t*)0x2000100f = 2;
  *(uint8_t*)0x20001010 = 3;
  *(uint8_t*)0x20001011 = 1;
  *(uint8_t*)0x20001012 = 9;
  *(uint8_t*)0x20001013 = 2;
  *(uint16_t*)0x20001014 = 0x174;
  *(uint8_t*)0x20001016 = 2;
  *(uint8_t*)0x20001017 = 0;
  *(uint8_t*)0x20001018 = 4;
  *(uint8_t*)0x20001019 = 0xc0;
  *(uint8_t*)0x2000101a = 5;
  *(uint8_t*)0x2000101b = 9;
  *(uint8_t*)0x2000101c = 4;
  *(uint8_t*)0x2000101d = -1;
  *(uint8_t*)0x2000101e = 6;
  *(uint8_t*)0x2000101f = 0xc;
  *(uint8_t*)0x20001020 = 0;
  *(uint8_t*)0x20001021 = 0;
  *(uint8_t*)0x20001022 = 0;
  *(uint8_t*)0x20001023 = 7;
  *(uint8_t*)0x20001024 = 9;
  *(uint8_t*)0x20001025 = 5;
  *(uint8_t*)0x20001026 = 0xa;
  *(uint8_t*)0x20001027 = 0x10;
  *(uint16_t*)0x20001028 = 0;
  *(uint8_t*)0x2000102a = 0x3f;
  *(uint8_t*)0x2000102b = 2;
  *(uint8_t*)0x2000102c = 0x30;
  *(uint8_t*)0x2000102d = 7;
  *(uint8_t*)0x2000102e = 0x25;
  *(uint8_t*)0x2000102f = 1;
  *(uint8_t*)0x20001030 = 0x82;
  *(uint8_t*)0x20001031 = 6;
  *(uint16_t*)0x20001032 = 0x200;
  *(uint8_t*)0x20001034 = 9;
  *(uint8_t*)0x20001035 = 5;
  *(uint8_t*)0x20001036 = 8;
  *(uint8_t*)0x20001037 = 2;
  *(uint16_t*)0x20001038 = 0x20;
  *(uint8_t*)0x2000103a = 5;
  *(uint8_t*)0x2000103b = 7;
  *(uint8_t*)0x2000103c = 0x80;
  *(uint8_t*)0x2000103d = 2;
  *(uint8_t*)0x2000103e = 0x30;
  *(uint8_t*)0x2000103f = 7;
  *(uint8_t*)0x20001040 = 0x25;
  *(uint8_t*)0x20001041 = 1;
  *(uint8_t*)0x20001042 = 0;
  *(uint8_t*)0x20001043 = 0x43;
  *(uint16_t*)0x20001044 = 0x75bf;
  *(uint8_t*)0x20001046 = 9;
  *(uint8_t*)0x20001047 = 5;
  *(uint8_t*)0x20001048 = 2;
  *(uint8_t*)0x20001049 = 2;
  *(uint16_t*)0x2000104a = 0x20;
  *(uint8_t*)0x2000104c = 0x80;
  *(uint8_t*)0x2000104d = 3;
  *(uint8_t*)0x2000104e = 8;
  *(uint8_t*)0x2000104f = 7;
  *(uint8_t*)0x20001050 = 0x25;
  *(uint8_t*)0x20001051 = 1;
  *(uint8_t*)0x20001052 = 0x14;
  *(uint8_t*)0x20001053 = 0x80;
  *(uint16_t*)0x20001054 = 7;
  *(uint8_t*)0x20001056 = 7;
  *(uint8_t*)0x20001057 = 0x25;
  *(uint8_t*)0x20001058 = 1;
  *(uint8_t*)0x20001059 = 0;
  *(uint8_t*)0x2000105a = 0;
  *(uint16_t*)0x2000105b = 9;
  *(uint8_t*)0x2000105d = 9;
  *(uint8_t*)0x2000105e = 5;
  *(uint8_t*)0x2000105f = 2;
  *(uint8_t*)0x20001060 = 0x10;
  *(uint16_t*)0x20001061 = 0x10;
  *(uint8_t*)0x20001063 = 8;
  *(uint8_t*)0x20001064 = 9;
  *(uint8_t*)0x20001065 = 0x20;
  *(uint8_t*)0x20001066 = 2;
  *(uint8_t*)0x20001067 = 1;
  *(uint8_t*)0x20001068 = 9;
  *(uint8_t*)0x20001069 = 5;
  *(uint8_t*)0x2000106a = 0xd;
  *(uint8_t*)0x2000106b = 3;
  *(uint16_t*)0x2000106c = 0x3ff;
  *(uint8_t*)0x2000106e = 2;
  *(uint8_t*)0x2000106f = 0x8b;
  *(uint8_t*)0x20001070 = 1;
  *(uint8_t*)0x20001071 = 7;
  *(uint8_t*)0x20001072 = 0x25;
  *(uint8_t*)0x20001073 = 1;
  *(uint8_t*)0x20001074 = 2;
  *(uint8_t*)0x20001075 = 4;
  *(uint16_t*)0x20001076 = 3;
  *(uint8_t*)0x20001078 = 2;
  *(uint8_t*)0x20001079 = 7;
  *(uint8_t*)0x2000107a = 9;
  *(uint8_t*)0x2000107b = 5;
  *(uint8_t*)0x2000107c = 3;
  *(uint8_t*)0x2000107d = 0;
  *(uint16_t*)0x2000107e = 0x400;
  *(uint8_t*)0x20001080 = 1;
  *(uint8_t*)0x20001081 = 1;
  *(uint8_t*)0x20001082 = 9;
  *(uint8_t*)0x20001083 = 9;
  *(uint8_t*)0x20001084 = 5;
  *(uint8_t*)0x20001085 = 1;
  *(uint8_t*)0x20001086 = 3;
  *(uint16_t*)0x20001087 = 8;
  *(uint8_t*)0x20001089 = 2;
  *(uint8_t*)0x2000108a = 0;
  *(uint8_t*)0x2000108b = 8;
  *(uint8_t*)0x2000108c = 7;
  *(uint8_t*)0x2000108d = 0x25;
  *(uint8_t*)0x2000108e = 1;
  *(uint8_t*)0x2000108f = 2;
  *(uint8_t*)0x20001090 = 5;
  *(uint16_t*)0x20001091 = 0x8000;
  *(uint8_t*)0x20001093 = 9;
  *(uint8_t*)0x20001094 = 5;
  *(uint8_t*)0x20001095 = 2;
  *(uint8_t*)0x20001096 = 0xc;
  *(uint16_t*)0x20001097 = 0xb92;
  *(uint8_t*)0x20001099 = -1;
  *(uint8_t*)0x2000109a = 4;
  *(uint8_t*)0x2000109b = 0x6f;
  *(uint8_t*)0x2000109c = 9;
  *(uint8_t*)0x2000109d = 5;
  *(uint8_t*)0x2000109e = 0xe;
  *(uint8_t*)0x2000109f = 2;
  *(uint16_t*)0x200010a0 = 0x50;
  *(uint8_t*)0x200010a2 = 0x40;
  *(uint8_t*)0x200010a3 = 5;
  *(uint8_t*)0x200010a4 = 7;
  *(uint8_t*)0x200010a5 = 9;
  *(uint8_t*)0x200010a6 = 5;
  *(uint8_t*)0x200010a7 = 2;
  *(uint8_t*)0x200010a8 = 3;
  *(uint16_t*)0x200010a9 = 0x200;
  *(uint8_t*)0x200010ab = 0x1f;
  *(uint8_t*)0x200010ac = 0x80;
  *(uint8_t*)0x200010ad = 1;
  *(uint8_t*)0x200010ae = 9;
  *(uint8_t*)0x200010af = 5;
  *(uint8_t*)0x200010b0 = 0xb;
  *(uint8_t*)0x200010b1 = 0;
  *(uint16_t*)0x200010b2 = 0x3cf;
  *(uint8_t*)0x200010b4 = 0x81;
  *(uint8_t*)0x200010b5 = 6;
  *(uint8_t*)0x200010b6 = 3;
  *(uint8_t*)0x200010b7 = 7;
  *(uint8_t*)0x200010b8 = 0x25;
  *(uint8_t*)0x200010b9 = 1;
  *(uint8_t*)0x200010ba = 0x80;
  *(uint8_t*)0x200010bb = 7;
  *(uint16_t*)0x200010bc = 0xac;
  *(uint8_t*)0x200010be = 7;
  *(uint8_t*)0x200010bf = 0x25;
  *(uint8_t*)0x200010c0 = 1;
  *(uint8_t*)0x200010c1 = 3;
  *(uint8_t*)0x200010c2 = 8;
  *(uint16_t*)0x200010c3 = 4;
  *(uint8_t*)0x200010c5 = 9;
  *(uint8_t*)0x200010c6 = 5;
  *(uint8_t*)0x200010c7 = 0xa;
  *(uint8_t*)0x200010c8 = 8;
  *(uint16_t*)0x200010c9 = 0x10;
  *(uint8_t*)0x200010cb = 6;
  *(uint8_t*)0x200010cc = 5;
  *(uint8_t*)0x200010cd = 5;
  *(uint8_t*)0x200010ce = 7;
  *(uint8_t*)0x200010cf = 0x25;
  *(uint8_t*)0x200010d0 = 1;
  *(uint8_t*)0x200010d1 = 2;
  *(uint8_t*)0x200010d2 = 3;
  *(uint16_t*)0x200010d3 = 0x400;
  *(uint8_t*)0x200010d5 = 9;
  *(uint8_t*)0x200010d6 = 4;
  *(uint8_t*)0x200010d7 = 5;
  *(uint8_t*)0x200010d8 = 9;
  *(uint8_t*)0x200010d9 = 0xb;
  *(uint8_t*)0x200010da = 0;
  *(uint8_t*)0x200010db = 0;
  *(uint8_t*)0x200010dc = 0;
  *(uint8_t*)0x200010dd = 0x81;
  *(uint8_t*)0x200010de = 5;
  *(uint8_t*)0x200010df = 0x24;
  *(uint8_t*)0x200010e0 = 6;
  *(uint8_t*)0x200010e1 = 0;
  *(uint8_t*)0x200010e2 = 0;
  *(uint8_t*)0x200010e3 = 5;
  *(uint8_t*)0x200010e4 = 0x24;
  *(uint8_t*)0x200010e5 = 0;
  *(uint16_t*)0x200010e6 = 9;
  *(uint8_t*)0x200010e8 = 0xd;
  *(uint8_t*)0x200010e9 = 0x24;
  *(uint8_t*)0x200010ea = 0xf;
  *(uint8_t*)0x200010eb = 1;
  *(uint32_t*)0x200010ec = 4;
  *(uint16_t*)0x200010f0 = 6;
  *(uint16_t*)0x200010f2 = 3;
  *(uint8_t*)0x200010f4 = 7;
  *(uint8_t*)0x200010f5 = 9;
  *(uint8_t*)0x200010f6 = 5;
  *(uint8_t*)0x200010f7 = 2;
  *(uint8_t*)0x200010f8 = 4;
  *(uint16_t*)0x200010f9 = 0x20;
  *(uint8_t*)0x200010fb = 0x20;
  *(uint8_t*)0x200010fc = 0xd2;
  *(uint8_t*)0x200010fd = 2;
  *(uint8_t*)0x200010fe = 7;
  *(uint8_t*)0x200010ff = 0x25;
  *(uint8_t*)0x20001100 = 1;
  *(uint8_t*)0x20001101 = 2;
  *(uint8_t*)0x20001102 = 9;
  *(uint16_t*)0x20001103 = 0xff00;
  *(uint8_t*)0x20001105 = 9;
  *(uint8_t*)0x20001106 = 5;
  *(uint8_t*)0x20001107 = 0xe;
  *(uint8_t*)0x20001108 = 8;
  *(uint16_t*)0x20001109 = 0x3ef;
  *(uint8_t*)0x2000110b = 3;
  *(uint8_t*)0x2000110c = 9;
  *(uint8_t*)0x2000110d = 6;
  *(uint8_t*)0x2000110e = 2;
  *(uint8_t*)0x2000110f = 0;
  *(uint8_t*)0x20001110 = 7;
  *(uint8_t*)0x20001111 = 0x25;
  *(uint8_t*)0x20001112 = 1;
  *(uint8_t*)0x20001113 = 3;
  *(uint8_t*)0x20001114 = 0xf0;
  *(uint16_t*)0x20001115 = 0x31;
  *(uint8_t*)0x20001117 = 9;
  *(uint8_t*)0x20001118 = 5;
  *(uint8_t*)0x20001119 = 0xf;
  *(uint8_t*)0x2000111a = 0;
  *(uint16_t*)0x2000111b = 0x3ff;
  *(uint8_t*)0x2000111d = 8;
  *(uint8_t*)0x2000111e = 0x81;
  *(uint8_t*)0x2000111f = 7;
  *(uint8_t*)0x20001120 = 2;
  *(uint8_t*)0x20001121 = 0x11;
  *(uint8_t*)0x20001122 = 2;
  *(uint8_t*)0x20001123 = 4;
  *(uint8_t*)0x20001124 = 9;
  *(uint8_t*)0x20001125 = 5;
  *(uint8_t*)0x20001126 = 0xc;
  *(uint8_t*)0x20001127 = 0;
  *(uint16_t*)0x20001128 = 0x200;
  *(uint8_t*)0x2000112a = 0x20;
  *(uint8_t*)0x2000112b = 6;
  *(uint8_t*)0x2000112c = 0x74;
  *(uint8_t*)0x2000112d = 9;
  *(uint8_t*)0x2000112e = 5;
  *(uint8_t*)0x2000112f = 0xc;
  *(uint8_t*)0x20001130 = 2;
  *(uint16_t*)0x20001131 = 0x400;
  *(uint8_t*)0x20001133 = 0x7f;
  *(uint8_t*)0x20001134 = 5;
  *(uint8_t*)0x20001135 = 3;
  *(uint8_t*)0x20001136 = 2;
  *(uint8_t*)0x20001137 = 0x22;
  *(uint8_t*)0x20001138 = 9;
  *(uint8_t*)0x20001139 = 5;
  *(uint8_t*)0x2000113a = 0xd;
  *(uint8_t*)0x2000113b = 2;
  *(uint16_t*)0x2000113c = 0x208;
  *(uint8_t*)0x2000113e = 0x1f;
  *(uint8_t*)0x2000113f = 0x40;
  *(uint8_t*)0x20001140 = 1;
  *(uint8_t*)0x20001141 = 9;
  *(uint8_t*)0x20001142 = 5;
  *(uint8_t*)0x20001143 = 0xf;
  *(uint8_t*)0x20001144 = 1;
  *(uint16_t*)0x20001145 = 0x9abf;
  *(uint8_t*)0x20001147 = 0;
  *(uint8_t*)0x20001148 = 2;
  *(uint8_t*)0x20001149 = 2;
  *(uint8_t*)0x2000114a = 2;
  *(uint8_t*)0x2000114b = 0xe;
  *(uint8_t*)0x2000114c = 7;
  *(uint8_t*)0x2000114d = 0x25;
  *(uint8_t*)0x2000114e = 1;
  *(uint8_t*)0x2000114f = 0x80;
  *(uint8_t*)0x20001150 = 0xfb;
  *(uint16_t*)0x20001151 = 1;
  *(uint8_t*)0x20001153 = 9;
  *(uint8_t*)0x20001154 = 5;
  *(uint8_t*)0x20001155 = 1;
  *(uint8_t*)0x20001156 = 0;
  *(uint16_t*)0x20001157 = 0x10;
  *(uint8_t*)0x20001159 = -1;
  *(uint8_t*)0x2000115a = 0x93;
  *(uint8_t*)0x2000115b = 3;
  *(uint8_t*)0x2000115c = 2;
  *(uint8_t*)0x2000115d = 6;
  *(uint8_t*)0x2000115e = 2;
  *(uint8_t*)0x2000115f = 0xc;
  *(uint8_t*)0x20001160 = 9;
  *(uint8_t*)0x20001161 = 5;
  *(uint8_t*)0x20001162 = 9;
  *(uint8_t*)0x20001163 = 8;
  *(uint16_t*)0x20001164 = 0x3ff;
  *(uint8_t*)0x20001166 = 1;
  *(uint8_t*)0x20001167 = 8;
  *(uint8_t*)0x20001168 = 0xe1;
  *(uint8_t*)0x20001169 = 7;
  *(uint8_t*)0x2000116a = 0x25;
  *(uint8_t*)0x2000116b = 1;
  *(uint8_t*)0x2000116c = 0x83;
  *(uint8_t*)0x2000116d = 6;
  *(uint16_t*)0x2000116e = 0xfb;
  *(uint8_t*)0x20001170 = 2;
  *(uint8_t*)0x20001171 = 0xa;
  *(uint8_t*)0x20001172 = 9;
  *(uint8_t*)0x20001173 = 5;
  *(uint8_t*)0x20001174 = 0xf;
  *(uint8_t*)0x20001175 = 0x10;
  *(uint16_t*)0x20001176 = 0x3ff;
  *(uint8_t*)0x20001178 = 0;
  *(uint8_t*)0x20001179 = 6;
  *(uint8_t*)0x2000117a = 7;
  *(uint8_t*)0x2000117b = 2;
  *(uint8_t*)0x2000117c = 4;
  *(uint8_t*)0x2000117d = 9;
  *(uint8_t*)0x2000117e = 5;
  *(uint8_t*)0x2000117f = 9;
  *(uint8_t*)0x20001180 = 8;
  *(uint16_t*)0x20001181 = 0x10;
  *(uint8_t*)0x20001183 = 8;
  *(uint8_t*)0x20001184 = 6;
  *(uint8_t*)0x20001185 = 4;
  syz_usb_connect(3, 0x186, 0x20001000, 0);
  syscall(SYS_chroot, 0ul);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}