// https://syzkaller.appspot.com/bug?id=f52d486e42ff6af44b01b7ac6cdf3aadaf0418fc
// 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/ioctl.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 void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

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;
}

struct vusb_descriptor {
  uint8_t req_type;
  uint8_t desc_type;
  uint32_t len;
  char data[0];
} __attribute__((packed));

struct vusb_descriptors {
  uint32_t len;
  struct vusb_descriptor* generic;
  struct vusb_descriptor* descs[0];
} __attribute__((packed));

struct vusb_response {
  uint8_t type;
  uint8_t req;
  uint32_t len;
  char data[0];
} __attribute__((packed));

struct vusb_responses {
  uint32_t len;
  struct vusb_response* generic;
  struct vusb_response* resps[0];
} __attribute__((packed));

static bool lookup_control_response(const struct vusb_descriptors* descs,
                                    const struct vusb_responses* resps,
                                    struct usb_ctrlrequest* ctrl,
                                    char** response_data,
                                    uint32_t* response_length)
{
  int descs_num = 0;
  int resps_num = 0;
  if (descs)
    descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) /
                sizeof(descs->descs[0]);
  if (resps)
    resps_num = (resps->len - offsetof(struct vusb_responses, resps)) /
                sizeof(resps->resps[0]);
  uint8_t req = ctrl->bRequest;
  uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK;
  uint8_t desc_type = ctrl->wValue >> 8;
  if (req == USB_REQ_GET_DESCRIPTOR) {
    int i;
    for (i = 0; i < descs_num; i++) {
      struct vusb_descriptor* desc = descs->descs[i];
      if (!desc)
        continue;
      if (desc->req_type == req_type && desc->desc_type == desc_type) {
        *response_length = desc->len;
        if (*response_length != 0)
          *response_data = &desc->data[0];
        else
          *response_data = NULL;
        return true;
      }
    }
    if (descs && descs->generic) {
      *response_data = &descs->generic->data[0];
      *response_length = descs->generic->len;
      return true;
    }
  } else {
    int i;
    for (i = 0; i < resps_num; i++) {
      struct vusb_response* resp = resps->resps[i];
      if (!resp)
        continue;
      if (resp->type == req_type && resp->req == req) {
        *response_length = resp->len;
        if (*response_length != 0)
          *response_data = &resp->data[0];
        else
          *response_data = NULL;
        return true;
      }
    }
    if (resps && resps->generic) {
      *response_data = &resps->generic->data[0];
      *response_length = resps->generic->len;
      return true;
    }
  }
  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 int lookup_interface(int fd, uint8_t bInterfaceNumber,
                            uint8_t bAlternateSetting)
{
  struct usb_device_index* index = lookup_usb_index(fd);
  if (!index)
    return -1;
  for (int i = 0; i < index->ifaces_num; i++) {
    if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber &&
        index->ifaces[i].bAlternateSetting == bAlternateSetting)
      return i;
  }
  return -1;
}

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 volatile long syz_usb_control_io(volatile long a0, volatile long a1,
                                        volatile long a2)
{
  int fd = a0;
  const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1;
  const struct vusb_responses* resps = (const struct vusb_responses*)a2;
  struct usb_raw_control_event event;
  event.inner.type = 0;
  event.inner.length = USB_MAX_PACKET_SIZE;
  int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event);
  if (rv < 0) {
    return rv;
  }
  if (event.inner.type != USB_RAW_EVENT_CONTROL) {
    return -1;
  }
  char* response_data = NULL;
  uint32_t response_length = 0;
  if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) {
    if (!lookup_control_response(descs, resps, &event.ctrl, &response_data,
                                 &response_length)) {
      usb_raw_ep0_stall(fd);
      return -1;
    }
  } else {
    if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD ||
        event.ctrl.bRequest == USB_REQ_SET_INTERFACE) {
      int iface_num = event.ctrl.wIndex;
      int alt_set = event.ctrl.wValue;
      int iface_index = lookup_interface(fd, iface_num, alt_set);
      if (iface_index < 0) {
      } else {
        set_interface(fd, iface_index);
      }
    }
    response_length = event.ctrl.wLength;
  }
  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;
  if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) {
    response_length = USB_MAX_PACKET_SIZE;
  }
  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) && event.ctrl.wLength) {
    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 0;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

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");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      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;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  *(uint8_t*)0x200011c0 = 0x12;
  *(uint8_t*)0x200011c1 = 1;
  *(uint16_t*)0x200011c2 = 0;
  *(uint8_t*)0x200011c4 = 3;
  *(uint8_t*)0x200011c5 = 0xea;
  *(uint8_t*)0x200011c6 = 0xc3;
  *(uint8_t*)0x200011c7 = 0x40;
  *(uint16_t*)0x200011c8 = 0x13d3;
  *(uint16_t*)0x200011ca = 0x3335;
  *(uint16_t*)0x200011cc = 0xe96f;
  *(uint8_t*)0x200011ce = 0;
  *(uint8_t*)0x200011cf = 0;
  *(uint8_t*)0x200011d0 = 0;
  *(uint8_t*)0x200011d1 = 1;
  *(uint8_t*)0x200011d2 = 9;
  *(uint8_t*)0x200011d3 = 2;
  *(uint16_t*)0x200011d4 = 0x520;
  *(uint8_t*)0x200011d6 = 3;
  *(uint8_t*)0x200011d7 = 0;
  *(uint8_t*)0x200011d8 = 0;
  *(uint8_t*)0x200011d9 = 0;
  *(uint8_t*)0x200011da = 0;
  *(uint8_t*)0x200011db = 9;
  *(uint8_t*)0x200011dc = 4;
  *(uint8_t*)0x200011dd = 0x66;
  *(uint8_t*)0x200011de = 0x81;
  *(uint8_t*)0x200011df = 3;
  *(uint8_t*)0x200011e0 = 0xe1;
  *(uint8_t*)0x200011e1 = 0x85;
  *(uint8_t*)0x200011e2 = 0x5b;
  *(uint8_t*)0x200011e3 = 7;
  *(uint8_t*)0x200011e4 = 0xa;
  *(uint8_t*)0x200011e5 = 0x24;
  *(uint8_t*)0x200011e6 = 1;
  *(uint16_t*)0x200011e7 = 0x100;
  *(uint8_t*)0x200011e9 = 0xcb;
  *(uint8_t*)0x200011ea = 2;
  *(uint8_t*)0x200011eb = 1;
  *(uint8_t*)0x200011ec = 2;
  *(uint8_t*)0x200011ed = 9;
  *(uint8_t*)0x200011ee = 0x24;
  *(uint8_t*)0x200011ef = 3;
  *(uint8_t*)0x200011f0 = 5;
  *(uint16_t*)0x200011f1 = 0x306;
  *(uint8_t*)0x200011f3 = 3;
  *(uint8_t*)0x200011f4 = 2;
  *(uint8_t*)0x200011f5 = 9;
  *(uint8_t*)0x200011f6 = 7;
  *(uint8_t*)0x200011f7 = 0x24;
  *(uint8_t*)0x200011f8 = 8;
  *(uint8_t*)0x200011f9 = 2;
  *(uint16_t*)0x200011fa = 3;
  *(uint8_t*)0x200011fc = 2;
  *(uint8_t*)0x200011fd = 0xc;
  *(uint8_t*)0x200011fe = 0x24;
  *(uint8_t*)0x200011ff = 2;
  *(uint8_t*)0x20001200 = 1;
  *(uint16_t*)0x20001201 = 0x100;
  *(uint8_t*)0x20001203 = 4;
  *(uint8_t*)0x20001204 = -1;
  *(uint16_t*)0x20001205 = 0x20;
  *(uint8_t*)0x20001207 = 0x86;
  *(uint8_t*)0x20001208 = 0x88;
  *(uint8_t*)0x20001209 = 7;
  *(uint8_t*)0x2000120a = 0x24;
  *(uint8_t*)0x2000120b = 8;
  *(uint8_t*)0x2000120c = 5;
  *(uint16_t*)0x2000120d = 0x80;
  *(uint8_t*)0x2000120f = 9;
  *(uint8_t*)0x20001210 = 8;
  *(uint8_t*)0x20001211 = 0x24;
  *(uint8_t*)0x20001212 = 6;
  *(uint8_t*)0x20001213 = 0;
  *(uint8_t*)0x20001214 = 1;
  memcpy((void*)0x20001215, "\x89\x4b\xd0", 3);
  *(uint8_t*)0x20001218 = 5;
  *(uint8_t*)0x20001219 = 0x24;
  *(uint8_t*)0x2000121a = 0;
  *(uint16_t*)0x2000121b = 0;
  *(uint8_t*)0x2000121d = 0xd;
  *(uint8_t*)0x2000121e = 0x24;
  *(uint8_t*)0x2000121f = 0xf;
  *(uint8_t*)0x20001220 = 1;
  *(uint32_t*)0x20001221 = 0xff;
  *(uint16_t*)0x20001225 = 4;
  *(uint16_t*)0x20001227 = 0x1f;
  *(uint8_t*)0x20001229 = 0x3f;
  *(uint8_t*)0x2000122a = 6;
  *(uint8_t*)0x2000122b = 0x24;
  *(uint8_t*)0x2000122c = 0x1a;
  *(uint16_t*)0x2000122d = 7;
  *(uint8_t*)0x2000122f = 0x28;
  *(uint8_t*)0x20001230 = 0xc;
  *(uint8_t*)0x20001231 = 0x24;
  *(uint8_t*)0x20001232 = 0x1b;
  *(uint16_t*)0x20001233 = 3;
  *(uint16_t*)0x20001235 = 0x8001;
  *(uint8_t*)0x20001237 = 9;
  *(uint8_t*)0x20001238 = 8;
  *(uint16_t*)0x20001239 = 0x20;
  *(uint8_t*)0x2000123b = 8;
  *(uint8_t*)0x2000123c = 8;
  *(uint8_t*)0x2000123d = 0x24;
  *(uint8_t*)0x2000123e = 0x1c;
  *(uint16_t*)0x2000123f = 7;
  *(uint8_t*)0x20001241 = 0;
  *(uint16_t*)0x20001242 = 3;
  *(uint8_t*)0x20001244 = 5;
  *(uint8_t*)0x20001245 = 0x24;
  *(uint8_t*)0x20001246 = 0x15;
  *(uint16_t*)0x20001247 = 6;
  *(uint8_t*)0x20001249 = 0xc;
  *(uint8_t*)0x2000124a = 0x24;
  *(uint8_t*)0x2000124b = 0x1b;
  *(uint16_t*)0x2000124c = 0x401;
  *(uint16_t*)0x2000124e = 7;
  *(uint8_t*)0x20001250 = 6;
  *(uint8_t*)0x20001251 = 0x61;
  *(uint16_t*)0x20001252 = 0xdaf1;
  *(uint8_t*)0x20001254 = 0;
  *(uint8_t*)0x20001255 = 9;
  *(uint8_t*)0x20001256 = 5;
  *(uint8_t*)0x20001257 = 0;
  *(uint8_t*)0x20001258 = 0;
  *(uint16_t*)0x20001259 = 0x400;
  *(uint8_t*)0x2000125b = 0;
  *(uint8_t*)0x2000125c = 8;
  *(uint8_t*)0x2000125d = 0x1f;
  *(uint8_t*)0x2000125e = 2;
  *(uint8_t*)0x2000125f = 3;
  *(uint8_t*)0x20001260 = 9;
  *(uint8_t*)0x20001261 = 5;
  *(uint8_t*)0x20001262 = 0xb;
  *(uint8_t*)0x20001263 = 0;
  *(uint16_t*)0x20001264 = 0x40;
  *(uint8_t*)0x20001266 = 5;
  *(uint8_t*)0x20001267 = 0xc1;
  *(uint8_t*)0x20001268 = 0;
  *(uint8_t*)0x20001269 = 0x4c;
  *(uint8_t*)0x2000126a = 0xd;
  memcpy((void*)0x2000126b,
         "\x87\x1b\x3f\xde\xb5\xba\xca\x27\xca\x84\x85\x3e\xc4\xcc\xb7\x3f\x02"
         "\x22\x59\x0a\x34\x1d\x9e\x93\x67\x5c\x41\x01\xf4\xb1\xd9\x96\xd3\x9d"
         "\xc8\x57\xc5\x61\x02\x12\x29\xf8\x1d\xb5\xd2\x0a\x55\x61\x20\xd0\x73"
         "\x38\x90\x2d\x6c\xa0\xfc\xe7\x73\x30\x84\x5d\x30\x90\xee\xcb\x92\x79"
         "\x79\x5c\x02\x9d\xe3\x70",
         74);
  *(uint8_t*)0x200012b5 = 9;
  *(uint8_t*)0x200012b6 = 5;
  *(uint8_t*)0x200012b7 = 2;
  *(uint8_t*)0x200012b8 = 3;
  *(uint16_t*)0x200012b9 = 0x3ff;
  *(uint8_t*)0x200012bb = 0xc1;
  *(uint8_t*)0x200012bc = 1;
  *(uint8_t*)0x200012bd = 0;
  *(uint8_t*)0x200012be = 2;
  *(uint8_t*)0x200012bf = 9;
  *(uint8_t*)0x200012c0 = 9;
  *(uint8_t*)0x200012c1 = 4;
  *(uint8_t*)0x200012c2 = 0x30;
  *(uint8_t*)0x200012c3 = 0x67;
  *(uint8_t*)0x200012c4 = 5;
  *(uint8_t*)0x200012c5 = 0x4f;
  *(uint8_t*)0x200012c6 = 0xf2;
  *(uint8_t*)0x200012c7 = 0x1d;
  *(uint8_t*)0x200012c8 = 1;
  *(uint8_t*)0x200012c9 = 9;
  *(uint8_t*)0x200012ca = 5;
  *(uint8_t*)0x200012cb = 4;
  *(uint8_t*)0x200012cc = 0x10;
  *(uint16_t*)0x200012cd = 0x3ff;
  *(uint8_t*)0x200012cf = 5;
  *(uint8_t*)0x200012d0 = 0x66;
  *(uint8_t*)0x200012d1 = 0x3f;
  *(uint8_t*)0x200012d2 = 0xda;
  *(uint8_t*)0x200012d3 = 0xc;
  memcpy((void*)0x200012d4,
         "\x1f\xd8\xd5\x10\x39\xe7\xcf\xa0\x4f\x76\xe0\xde\xdf\x5f\x73\xf6\x54"
         "\x35\x17\x0a\x31\x75\x5e\x03\xc7\x57\xec\xb8\x1c\xf9\x38\x9e\xea\x0d"
         "\x37\xcb\xcf\x60\x55\xfa\x14\x9b\x43\xc7\xa1\xd2\x25\x3c\xa8\x05\x4a"
         "\x4a\xc5\x16\xae\xc9\xf5\xe3\xf7\x0d\xcd\xea\x52\xb8\xea\xf4\xa1\xbf"
         "\xee\xf9\x42\x08\xca\x95\x8f\x97\xfd\x5f\xbd\xa4\x56\xb1\x2c\xe8\xea"
         "\x72\x95\x3d\xdb\x17\x95\x3e\xca\xb1\x45\x31\xde\xb5\xf3\x07\x4c\x87"
         "\x03\xf9\x49\x1d\x97\xab\x40\xe5\x53\x62\x1a\x43\x9e\xce\x7f\xb5\x29"
         "\xe3\xf3\x3e\x88\xd0\x4c\x40\x35\xc9\xf9\x50\x61\xb5\x4e\xde\xbf\xed"
         "\x33\x56\xcf\x15\x84\x8a\xa9\xef\xd6\xc3\x75\x35\xb5\xee\x8e\x5c\xa0"
         "\xc4\x46\xcd\xbc\xf5\x1a\x90\x6e\xe4\xa6\x91\x63\x4c\x2c\x19\x52\x85"
         "\xe3\xc6\x58\xb2\x08\x6d\xaa\x22\x2f\x24\xb6\xaf\x71\xc4\x1d\xd2\xb4"
         "\x5d\x03\xa1\x41\x86\x3b\x50\xab\xcf\x77\xd4\x93\x37\x76\x5b\x6c\x70"
         "\xb6\xa5\xf8\x65\xca\x2f\x51\x18\xe3\xf8\xc5\xc1",
         216);
  *(uint8_t*)0x200013ac = 9;
  *(uint8_t*)0x200013ad = 5;
  *(uint8_t*)0x200013ae = 0xb;
  *(uint8_t*)0x200013af = 1;
  *(uint16_t*)0x200013b0 = 0x218;
  *(uint8_t*)0x200013b2 = 0xbd;
  *(uint8_t*)0x200013b3 = 0x81;
  *(uint8_t*)0x200013b4 = 6;
  *(uint8_t*)0x200013b5 = 7;
  *(uint8_t*)0x200013b6 = 0x25;
  *(uint8_t*)0x200013b7 = 1;
  *(uint8_t*)0x200013b8 = 0x81;
  *(uint8_t*)0x200013b9 = 0xf5;
  *(uint16_t*)0x200013ba = 6;
  *(uint8_t*)0x200013bc = 2;
  *(uint8_t*)0x200013bd = 0x21;
  *(uint8_t*)0x200013be = 9;
  *(uint8_t*)0x200013bf = 5;
  *(uint8_t*)0x200013c0 = 6;
  *(uint8_t*)0x200013c1 = 3;
  *(uint16_t*)0x200013c2 = 0x20;
  *(uint8_t*)0x200013c4 = 9;
  *(uint8_t*)0x200013c5 = 9;
  *(uint8_t*)0x200013c6 = 0xe;
  *(uint8_t*)0x200013c7 = 2;
  *(uint8_t*)0x200013c8 = 3;
  *(uint8_t*)0x200013c9 = 2;
  *(uint8_t*)0x200013ca = 1;
  *(uint8_t*)0x200013cb = 9;
  *(uint8_t*)0x200013cc = 5;
  *(uint8_t*)0x200013cd = 4;
  *(uint8_t*)0x200013ce = 0;
  *(uint16_t*)0x200013cf = 0x40;
  *(uint8_t*)0x200013d1 = 0x7f;
  *(uint8_t*)0x200013d2 = 0x80;
  *(uint8_t*)0x200013d3 = 0x20;
  *(uint8_t*)0x200013d4 = 9;
  *(uint8_t*)0x200013d5 = 5;
  *(uint8_t*)0x200013d6 = 0xe;
  *(uint8_t*)0x200013d7 = 0xc;
  *(uint16_t*)0x200013d8 = 0x79e;
  *(uint8_t*)0x200013da = 7;
  *(uint8_t*)0x200013db = 2;
  *(uint8_t*)0x200013dc = 9;
  *(uint8_t*)0x200013dd = 7;
  *(uint8_t*)0x200013de = 0x25;
  *(uint8_t*)0x200013df = 1;
  *(uint8_t*)0x200013e0 = 2;
  *(uint8_t*)0x200013e1 = 0;
  *(uint16_t*)0x200013e2 = 0x7ff;
  *(uint8_t*)0x200013e4 = 2;
  *(uint8_t*)0x200013e5 = 0xa;
  *(uint8_t*)0x200013e6 = 9;
  *(uint8_t*)0x200013e7 = 4;
  *(uint8_t*)0x200013e8 = 0xd6;
  *(uint8_t*)0x200013e9 = 2;
  *(uint8_t*)0x200013ea = 0x10;
  *(uint8_t*)0x200013eb = 0xe1;
  *(uint8_t*)0x200013ec = 0x16;
  *(uint8_t*)0x200013ed = 0x61;
  *(uint8_t*)0x200013ee = 7;
  *(uint8_t*)0x200013ef = 9;
  *(uint8_t*)0x200013f0 = 5;
  *(uint8_t*)0x200013f1 = 0xa;
  *(uint8_t*)0x200013f2 = 0x10;
  *(uint16_t*)0x200013f3 = 8;
  *(uint8_t*)0x200013f5 = 5;
  *(uint8_t*)0x200013f6 = 8;
  *(uint8_t*)0x200013f7 = 6;
  *(uint8_t*)0x200013f8 = 2;
  *(uint8_t*)0x200013f9 = 0xe;
  *(uint8_t*)0x200013fa = 9;
  *(uint8_t*)0x200013fb = 5;
  *(uint8_t*)0x200013fc = 0;
  *(uint8_t*)0x200013fd = 4;
  *(uint16_t*)0x200013fe = 0x10;
  *(uint8_t*)0x20001400 = 0x3f;
  *(uint8_t*)0x20001401 = 0x40;
  *(uint8_t*)0x20001402 = 0x1f;
  *(uint8_t*)0x20001403 = 7;
  *(uint8_t*)0x20001404 = 0x25;
  *(uint8_t*)0x20001405 = 1;
  *(uint8_t*)0x20001406 = 0;
  *(uint8_t*)0x20001407 = 0xd;
  *(uint16_t*)0x20001408 = 0x3ff;
  *(uint8_t*)0x2000140a = 7;
  *(uint8_t*)0x2000140b = 0x25;
  *(uint8_t*)0x2000140c = 1;
  *(uint8_t*)0x2000140d = 3;
  *(uint8_t*)0x2000140e = 0x40;
  *(uint16_t*)0x2000140f = 0;
  *(uint8_t*)0x20001411 = 9;
  *(uint8_t*)0x20001412 = 5;
  *(uint8_t*)0x20001413 = 7;
  *(uint8_t*)0x20001414 = 0x10;
  *(uint16_t*)0x20001415 = 0x20;
  *(uint8_t*)0x20001417 = 0xaa;
  *(uint8_t*)0x20001418 = 0;
  *(uint8_t*)0x20001419 = 2;
  *(uint8_t*)0x2000141a = 7;
  *(uint8_t*)0x2000141b = 0x25;
  *(uint8_t*)0x2000141c = 1;
  *(uint8_t*)0x2000141d = 2;
  *(uint8_t*)0x2000141e = 0x40;
  *(uint16_t*)0x2000141f = 1;
  *(uint8_t*)0x20001421 = 7;
  *(uint8_t*)0x20001422 = 0x25;
  *(uint8_t*)0x20001423 = 1;
  *(uint8_t*)0x20001424 = 0x80;
  *(uint8_t*)0x20001425 = 2;
  *(uint16_t*)0x20001426 = 0;
  *(uint8_t*)0x20001428 = 9;
  *(uint8_t*)0x20001429 = 5;
  *(uint8_t*)0x2000142a = 3;
  *(uint8_t*)0x2000142b = 2;
  *(uint16_t*)0x2000142c = 0x10;
  *(uint8_t*)0x2000142e = 5;
  *(uint8_t*)0x2000142f = 0xf5;
  *(uint8_t*)0x20001430 = 0;
  *(uint8_t*)0x20001431 = 9;
  *(uint8_t*)0x20001432 = 5;
  *(uint8_t*)0x20001433 = 0xe;
  *(uint8_t*)0x20001434 = 1;
  *(uint16_t*)0x20001435 = 0x20;
  *(uint8_t*)0x20001437 = 0x45;
  *(uint8_t*)0x20001438 = 3;
  *(uint8_t*)0x20001439 = 5;
  *(uint8_t*)0x2000143a = 9;
  *(uint8_t*)0x2000143b = 5;
  *(uint8_t*)0x2000143c = 0xa;
  *(uint8_t*)0x2000143d = 0;
  *(uint16_t*)0x2000143e = 8;
  *(uint8_t*)0x20001440 = 0xf0;
  *(uint8_t*)0x20001441 = 2;
  *(uint8_t*)0x20001442 = 0;
  *(uint8_t*)0x20001443 = 7;
  *(uint8_t*)0x20001444 = 0x25;
  *(uint8_t*)0x20001445 = 1;
  *(uint8_t*)0x20001446 = 3;
  *(uint8_t*)0x20001447 = 0x9f;
  *(uint16_t*)0x20001448 = 3;
  *(uint8_t*)0x2000144a = 7;
  *(uint8_t*)0x2000144b = 0x25;
  *(uint8_t*)0x2000144c = 1;
  *(uint8_t*)0x2000144d = 0;
  *(uint8_t*)0x2000144e = 0x7f;
  *(uint16_t*)0x2000144f = 1;
  *(uint8_t*)0x20001451 = 9;
  *(uint8_t*)0x20001452 = 5;
  *(uint8_t*)0x20001453 = 0xc;
  *(uint8_t*)0x20001454 = 8;
  *(uint16_t*)0x20001455 = 0x200;
  *(uint8_t*)0x20001457 = 0x7f;
  *(uint8_t*)0x20001458 = 4;
  *(uint8_t*)0x20001459 = 0x20;
  *(uint8_t*)0x2000145a = 9;
  *(uint8_t*)0x2000145b = 5;
  *(uint8_t*)0x2000145c = 0xd;
  *(uint8_t*)0x2000145d = 0xc;
  *(uint16_t*)0x2000145e = 8;
  *(uint8_t*)0x20001460 = 6;
  *(uint8_t*)0x20001461 = 4;
  *(uint8_t*)0x20001462 = 0xf5;
  *(uint8_t*)0x20001463 = 9;
  *(uint8_t*)0x20001464 = 5;
  *(uint8_t*)0x20001465 = 7;
  *(uint8_t*)0x20001466 = 3;
  *(uint16_t*)0x20001467 = 0x20;
  *(uint8_t*)0x20001469 = 0x40;
  *(uint8_t*)0x2000146a = 0xc3;
  *(uint8_t*)0x2000146b = 0xf9;
  *(uint8_t*)0x2000146c = 0xe9;
  *(uint8_t*)0x2000146d = 0x21;
  memcpy(
      (void*)0x2000146e,
      "\xc8\x4a\x07\x41\xce\x7f\xb3\x02\x64\x38\xf8\x97\x78\xac\x5a\xb9\x7d\x15"
      "\x27\x3f\xb5\xc5\x2d\xad\xf8\x62\x47\x4f\x6f\xcb\x09\x7f\xa2\xe2\x3a\x1f"
      "\x7a\x54\xd2\xd5\x28\x5a\xd6\x54\xe1\x35\xf4\xfa\x82\x3c\xe1\x47\x68\x32"
      "\xb1\x65\x90\xaf\x08\x39\x20\xff\x24\x7b\xb0\x76\x24\x0e\xfc\xbe\x8a\xc3"
      "\x5c\x41\x4b\xc7\x2e\xe3\xa5\x67\xe0\x03\xc3\x4d\xa6\xbf\x0e\x86\xa6\x5f"
      "\xae\xe2\x2c\x11\xa5\xde\x31\x13\xc9\xf0\x2a\xc9\x3f\x42\x4f\xe3\x2f\x1a"
      "\xe7\xd4\x6a\x1b\xb6\x96\x76\x24\x9e\x5a\xa3\x34\x6f\xd8\x87\x86\xb4\x50"
      "\xf5\x57\xa1\x7a\x60\x6b\x30\x7d\x0a\xee\x43\x82\xf9\xb8\xe9\xa6\xaf\x43"
      "\xf5\x34\x33\x21\x8f\xa6\x93\x63\x84\x16\x44\x1a\x1b\xb5\x56\xfe\xd1\xb1"
      "\x3b\xa2\xec\xf4\xdb\xec\x41\xe5\x1c\x2a\xf8\xb6\x6d\xe4\x03\x6a\x19\xcc"
      "\xe9\x4a\xcb\x3b\x89\x80\x0b\x52\x35\x1e\x07\xf9\x18\x11\xb7\xa1\xd0\x6a"
      "\x40\x84\x2b\xeb\x2a\x59\x90\x7d\x0b\xed\xc7\x7a\xa2\x87\xb7\x8c\x4b\xf4"
      "\x37\x87\xd5\xbb\x3d\x5a\xbe\x57\xf1\xee\x12\xe5\x6e\xd6\x07",
      231);
  *(uint8_t*)0x20001555 = 7;
  *(uint8_t*)0x20001556 = 0x25;
  *(uint8_t*)0x20001557 = 1;
  *(uint8_t*)0x20001558 = 0x80;
  *(uint8_t*)0x20001559 = 0x1f;
  *(uint16_t*)0x2000155a = 3;
  *(uint8_t*)0x2000155c = 9;
  *(uint8_t*)0x2000155d = 5;
  *(uint8_t*)0x2000155e = 0xc;
  *(uint8_t*)0x2000155f = 0x10;
  *(uint16_t*)0x20001560 = 0x200;
  *(uint8_t*)0x20001562 = 2;
  *(uint8_t*)0x20001563 = 4;
  *(uint8_t*)0x20001564 = 2;
  *(uint8_t*)0x20001565 = 9;
  *(uint8_t*)0x20001566 = 5;
  *(uint8_t*)0x20001567 = 2;
  *(uint8_t*)0x20001568 = 2;
  *(uint16_t*)0x20001569 = 0x3cf;
  *(uint8_t*)0x2000156b = 0;
  *(uint8_t*)0x2000156c = -1;
  *(uint8_t*)0x2000156d = 0x13;
  *(uint8_t*)0x2000156e = 7;
  *(uint8_t*)0x2000156f = 0x25;
  *(uint8_t*)0x20001570 = 1;
  *(uint8_t*)0x20001571 = 0x81;
  *(uint8_t*)0x20001572 = 9;
  *(uint16_t*)0x20001573 = 2;
  *(uint8_t*)0x20001575 = 0xb4;
  *(uint8_t*)0x20001576 = 0x2a;
  memcpy(
      (void*)0x20001577,
      "\xba\xa6\x7a\x1c\xb8\xc9\xaf\xd6\xf5\xe6\x23\x7e\xe0\xbc\x5b\x07\xb9\xde"
      "\xa0\x65\xf1\x2a\xd4\xb5\x72\xcb\x39\xd2\xbf\x21\x2e\x28\xb9\x72\x92\xb8"
      "\xd2\x5b\xce\x59\x2d\xc2\x6e\x19\xf2\x16\x12\xa5\x5b\xdf\xda\xfb\xe7\xb7"
      "\x1a\xa7\x7d\xeb\xee\x94\x06\x5f\x22\x36\x96\x8f\xfb\x02\x25\x80\x96\x1d"
      "\xeb\x7a\x14\x19\x93\x9a\x9d\xd3\x76\xa7\x54\xca\x59\xd0\xce\x9f\xde\xcb"
      "\xbd\x40\x13\xf7\x30\x95\x55\x15\xb8\x7c\xd6\xb1\x51\x14\x6f\x11\x2b\x71"
      "\x4d\x2d\x48\x63\x7e\x0d\x47\x1e\x03\xeb\xe8\x7c\x47\xe1\xf3\x15\xb3\x47"
      "\x33\x4f\x77\x7c\x43\xb7\x91\x63\x2e\x9c\xd4\xf6\xdf\x3c\xd8\x66\x8c\x61"
      "\x1b\x5c\x9a\x8d\xa7\x1f\x0b\xb0\xa1\x88\x09\x6b\x07\xf9\x90\x6d\xb7\x7e"
      "\x08\xc0\x6d\x65\x4e\xa1\xc4\x98\x88\x4c\x36\x3c\xbc\x7c\x9b\xc2",
      178);
  *(uint8_t*)0x20001629 = 9;
  *(uint8_t*)0x2000162a = 5;
  *(uint8_t*)0x2000162b = 1;
  *(uint8_t*)0x2000162c = 0;
  *(uint16_t*)0x2000162d = 0x20;
  *(uint8_t*)0x2000162f = 0x80;
  *(uint8_t*)0x20001630 = 0x53;
  *(uint8_t*)0x20001631 = 0xf0;
  *(uint8_t*)0x20001632 = 9;
  *(uint8_t*)0x20001633 = 5;
  *(uint8_t*)0x20001634 = 2;
  *(uint8_t*)0x20001635 = 0;
  *(uint16_t*)0x20001636 = 8;
  *(uint8_t*)0x20001638 = 6;
  *(uint8_t*)0x20001639 = 9;
  *(uint8_t*)0x2000163a = 1;
  *(uint8_t*)0x2000163b = 2;
  *(uint8_t*)0x2000163c = 0x10;
  *(uint8_t*)0x2000163d = 0x8f;
  *(uint8_t*)0x2000163e = 0x11;
  memcpy(
      (void*)0x2000163f,
      "\x48\x2b\x47\xeb\x25\xe3\x25\x4e\xa8\xbb\xd7\x1d\x78\xcc\x5d\x07\x76\xd1"
      "\x0f\x00\x65\x53\x05\xb7\x55\xd3\xff\x2d\x1d\xb0\xfe\xd9\x79\xef\xdc\xe2"
      "\x94\x5a\x09\xb4\x55\x87\x5e\x37\xd5\x91\xb3\x42\xf0\x57\x11\x6a\x15\xe2"
      "\xb8\xba\x07\x06\xa6\x8b\xda\x56\x3d\xc7\xe8\x9a\xf4\x21\x37\x1d\x15\x7f"
      "\xff\xff\xfe\xe0\x51\x77\x92\xf9\x36\xb6\x2c\x66\xde\x92\x91\xeb\xdb\x05"
      "\xd9\xae\xb8\xa3\x2c\x52\xfb\xb3\x19\x3a\x85\x12\x51\x3e\x67\xc3\x32\x7b"
      "\x40\xc1\x77\xb3\x65\x90\xdf\x95\xec\x2c\x92\x00\x3a\xca\xe8\x29\x69\x58"
      "\x1b\xfa\x01\x5e\xa1\xed\x3f\x5d\xd0\x22\x0b\x89\x04\x7b\xcb",
      141);
  *(uint8_t*)0x200016cc = 9;
  *(uint8_t*)0x200016cd = 5;
  *(uint8_t*)0x200016ce = 0xd;
  *(uint8_t*)0x200016cf = 2;
  *(uint16_t*)0x200016d0 = 0x400;
  *(uint8_t*)0x200016d2 = 2;
  *(uint8_t*)0x200016d3 = 0;
  *(uint8_t*)0x200016d4 = 0x80;
  *(uint8_t*)0x200016d5 = 7;
  *(uint8_t*)0x200016d6 = 0x25;
  *(uint8_t*)0x200016d7 = 1;
  *(uint8_t*)0x200016d8 = 0x80;
  *(uint8_t*)0x200016d9 = 8;
  *(uint16_t*)0x200016da = 5;
  *(uint8_t*)0x200016dc = 2;
  *(uint8_t*)0x200016dd = 0x10;
  *(uint8_t*)0x200016de = 9;
  *(uint8_t*)0x200016df = 5;
  *(uint8_t*)0x200016e0 = 0xd;
  *(uint8_t*)0x200016e1 = 0x10;
  *(uint16_t*)0x200016e2 = 0x10;
  *(uint8_t*)0x200016e4 = 0x10;
  *(uint8_t*)0x200016e5 = 0x41;
  *(uint8_t*)0x200016e6 = 5;
  *(uint8_t*)0x200016e7 = 2;
  *(uint8_t*)0x200016e8 = 6;
  *(uint8_t*)0x200016e9 = 9;
  *(uint8_t*)0x200016ea = 5;
  *(uint8_t*)0x200016eb = 4;
  *(uint8_t*)0x200016ec = 0x34;
  *(uint16_t*)0x200016ed = 0x3ff;
  *(uint8_t*)0x200016ef = 0xeb;
  *(uint8_t*)0x200016f0 = 7;
  *(uint8_t*)0x200016f1 = 1;
  res = -1;
  res = syz_usb_connect(3, 0x532, 0x200011c0, 0);
  if (res != -1)
    r[0] = res;
  *(uint8_t*)0x20000000 = 0x12;
  *(uint8_t*)0x20000001 = 1;
  *(uint16_t*)0x20000002 = 0x201;
  *(uint8_t*)0x20000004 = 2;
  *(uint8_t*)0x20000005 = 0;
  *(uint8_t*)0x20000006 = 0;
  *(uint8_t*)0x20000007 = 0x20;
  *(uint16_t*)0x20000008 = 0x525;
  *(uint16_t*)0x2000000a = 0xa4a1;
  *(uint16_t*)0x2000000c = 0x40;
  *(uint8_t*)0x2000000e = 1;
  *(uint8_t*)0x2000000f = 2;
  *(uint8_t*)0x20000010 = 3;
  *(uint8_t*)0x20000011 = 1;
  *(uint8_t*)0x20000012 = 9;
  *(uint8_t*)0x20000013 = 2;
  *(uint16_t*)0x20000014 = 0x80;
  *(uint8_t*)0x20000016 = 2;
  *(uint8_t*)0x20000017 = 1;
  *(uint8_t*)0x20000018 = 3;
  *(uint8_t*)0x20000019 = 0x80;
  *(uint8_t*)0x2000001a = 0xa7;
  *(uint8_t*)0x2000001b = 9;
  *(uint8_t*)0x2000001c = 4;
  *(uint8_t*)0x2000001d = 0;
  *(uint8_t*)0x2000001e = 0;
  *(uint8_t*)0x2000001f = 1;
  *(uint8_t*)0x20000020 = 2;
  *(uint8_t*)0x20000021 = 0xd;
  *(uint8_t*)0x20000022 = 0;
  *(uint8_t*)0x20000023 = 0;
  *(uint8_t*)0x20000024 = 9;
  *(uint8_t*)0x20000025 = 0x24;
  *(uint8_t*)0x20000026 = 6;
  *(uint8_t*)0x20000027 = 0;
  *(uint8_t*)0x20000028 = 1;
  memcpy((void*)0x20000029, "\tLR\"", 4);
  *(uint8_t*)0x2000002d = 5;
  *(uint8_t*)0x2000002e = 0x24;
  *(uint8_t*)0x2000002f = 0;
  *(uint16_t*)0x20000030 = 1;
  *(uint8_t*)0x20000032 = 0xd;
  *(uint8_t*)0x20000033 = 0x24;
  *(uint8_t*)0x20000034 = 0xf;
  *(uint8_t*)0x20000035 = 1;
  *(uint32_t*)0x20000036 = 0x7ff;
  *(uint16_t*)0x2000003a = 0xff;
  *(uint16_t*)0x2000003c = 3;
  *(uint8_t*)0x2000003e = 6;
  *(uint8_t*)0x2000003f = 6;
  *(uint8_t*)0x20000040 = 0x24;
  *(uint8_t*)0x20000041 = 0x1a;
  *(uint16_t*)0x20000042 = 8;
  *(uint8_t*)0x20000044 = 0x10;
  *(uint8_t*)0x20000045 = 7;
  *(uint8_t*)0x20000046 = 0x24;
  *(uint8_t*)0x20000047 = 0xa;
  *(uint8_t*)0x20000048 = 9;
  *(uint8_t*)0x20000049 = 0x1f;
  *(uint8_t*)0x2000004a = 0xfd;
  *(uint8_t*)0x2000004b = 0x20;
  *(uint8_t*)0x2000004c = 5;
  *(uint8_t*)0x2000004d = 0x24;
  *(uint8_t*)0x2000004e = 0x15;
  *(uint16_t*)0x2000004f = 6;
  *(uint8_t*)0x20000051 = 5;
  *(uint8_t*)0x20000052 = 0x24;
  *(uint8_t*)0x20000053 = 0x15;
  *(uint16_t*)0x20000054 = 0x1000;
  *(uint8_t*)0x20000056 = 8;
  *(uint8_t*)0x20000057 = 0x24;
  *(uint8_t*)0x20000058 = 0x1c;
  *(uint16_t*)0x20000059 = 0x8001;
  *(uint8_t*)0x2000005b = 2;
  *(uint16_t*)0x2000005c = 0x22;
  *(uint8_t*)0x2000005e = 7;
  *(uint8_t*)0x2000005f = 0x24;
  *(uint8_t*)0x20000060 = 0x14;
  *(uint16_t*)0x20000061 = 0x800;
  *(uint16_t*)0x20000063 = 0x3000;
  *(uint8_t*)0x20000065 = 9;
  *(uint8_t*)0x20000066 = 5;
  *(uint8_t*)0x20000067 = 0x81;
  *(uint8_t*)0x20000068 = 3;
  *(uint16_t*)0x20000069 = 0x20;
  *(uint8_t*)0x2000006b = 0x23;
  *(uint8_t*)0x2000006c = 0;
  *(uint8_t*)0x2000006d = 1;
  *(uint8_t*)0x2000006e = 9;
  *(uint8_t*)0x2000006f = 4;
  *(uint8_t*)0x20000070 = 1;
  *(uint8_t*)0x20000071 = 0;
  *(uint8_t*)0x20000072 = 0;
  *(uint8_t*)0x20000073 = 2;
  *(uint8_t*)0x20000074 = 0xd;
  *(uint8_t*)0x20000075 = 0;
  *(uint8_t*)0x20000076 = 0;
  *(uint8_t*)0x20000077 = 9;
  *(uint8_t*)0x20000078 = 4;
  *(uint8_t*)0x20000079 = 1;
  *(uint8_t*)0x2000007a = 1;
  *(uint8_t*)0x2000007b = 2;
  *(uint8_t*)0x2000007c = 2;
  *(uint8_t*)0x2000007d = 0xd;
  *(uint8_t*)0x2000007e = 0;
  *(uint8_t*)0x2000007f = 0;
  *(uint8_t*)0x20000080 = 9;
  *(uint8_t*)0x20000081 = 5;
  *(uint8_t*)0x20000082 = 0x82;
  *(uint8_t*)0x20000083 = 2;
  *(uint16_t*)0x20000084 = 0x200;
  *(uint8_t*)0x20000086 = 2;
  *(uint8_t*)0x20000087 = -1;
  *(uint8_t*)0x20000088 = 0x3f;
  *(uint8_t*)0x20000089 = 9;
  *(uint8_t*)0x2000008a = 5;
  *(uint8_t*)0x2000008b = 3;
  *(uint8_t*)0x2000008c = 2;
  *(uint16_t*)0x2000008d = 8;
  *(uint8_t*)0x2000008f = 8;
  *(uint8_t*)0x20000090 = 0;
  *(uint8_t*)0x20000091 = 4;
  syz_usb_connect(3, 0x92, 0x20000000, 0);
  syz_usb_control_io(r[0], 0, 0);
  syz_usb_control_io(r[0], 0, 0);
  syz_usb_control_io(r[0], 0, 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) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}