// https://syzkaller.appspot.com/bug?id=761b111fb9d95335cd1b9e308b1fb1d51b3ee621
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.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/mman.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#include <linux/loop.h>
#include <linux/usb/ch9.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif

static unsigned long long procid;

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

#define MAX_FDS 30

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

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

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

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

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

static struct usb_info usb_devices[USB_MAX_FDS];

static 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;
}

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;
}

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,
                           struct usb_qualifier_descriptor* qual,
                           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) {
          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_data = (char*)qual;
          *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_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_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_event_fetch(int fd, struct usb_raw_event* event)
{
  return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event);
}

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_ep0_stall(int fd)
{
  return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 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 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;
}

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;
    struct usb_qualifier_descriptor qual;
    if (event.ctrl.bRequestType & USB_DIR_IN) {
      if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual,
                                      &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);
}

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, max_destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device)
    reset_loop_device(loopname);
  errno = err;
  return res;
}

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);

  memcpy((void*)0x20000140, "nilfs2\000", 7);
  memcpy((void*)0x20000000, "./file0\000", 8);
  *(uint64_t*)0x20000200 = 0;
  *(uint8_t*)0x20000208 = 0;
  sprintf((char*)0x20000209, "%023llo", (long long)-1);
  memcpy((void*)0x20000220,
         "\xd1\x79\x4d\xa8\xc0\xcc\xda\x03\x42\x76\xe2\x8a\x25\xc4\x5c\x8e\x1e"
         "\xb8\xb5\x95\xa3\x7f\xfd\xfe\x7d\x2a\x8c\x39\x72\xa6\x93\x1d\x2c\xbb"
         "\x0d\x8d\xc9\x20\xbb\xde\x15\xd8\x79\x0d\x46\xcc\xb3\xa5\xf3\x6f\xf4"
         "\x12\x23\x62\x51\xd8\x63\x34\xf1\x75\x45\xcc\xae\x88",
         64);
  *(uint32_t*)0x20000260 = -1;
  *(uint32_t*)0x20000264 = -1;
  *(uint32_t*)0x20000268 = -1;
  sprintf((char*)0x2000026c, "%023llo", (long long)0);
  sprintf((char*)0x20000283, "%020llu", (long long)0);
  sprintf((char*)0x20000297, "%023llo", (long long)-1);
  sprintf((char*)0x200002ae, "%023llo", (long long)-1);
  memcpy(
      (void*)0x20000980,
      "\x78\x9c\xec\xdd\x4b\x8c\x1c\x47\x19\x00\xe0\xee\xdd\x9d\xb5\x9d\x38\x78"
      "\x1c\x6c\x62\x9c\x90\xd8\x04\x92\x08\xc8\x6e\xbc\x6b\xcc\xc3\x82\x38\x8a"
      "\x2f\x58\x31\xe2\x16\x29\xe2\x62\x39\x4e\xb0\x70\x0c\xc2\x91\x20\x51\x24"
      "\x6c\x9f\xb8\x91\xc8\x32\x37\xc4\x43\x9c\x72\x89\x00\x21\x91\x0b\xb2\x72"
      "\xe2\x12\x89\x58\xe2\x92\x53\xe0\xc0\x01\xcb\x48\x91\x38\x40\x82\x3d\x68"
      "\x67\xab\x66\x67\x7e\xcf\xa4\x67\xbd\x8f\xde\xd9\xf9\x3e\xa9\xa6\xa6\xbb"
      "\x6a\xba\xaa\x67\x7b\x7a\xfb\x55\x55\x05\x30\xb6\x26\xda\xaf\x8d\xf6\xeb"
      "\xe5\x37\x2f\x1d\xfd\xe7\x43\xff\xd8\xb6\xf0\xfe\xf1\x4e\x8e\x66\xfb\x75"
      "\xaa\x6b\x6a\x21\x77\x99\xa6\xa7\xc2\xf2\xde\x9b\x5c\x8c\x6f\xbc\xff\xca"
      "\xc9\x7e\x71\x59\xcc\xb5\x5f\xf3\xf4\x64\xd7\x67\xef\x2c\x8a\xe2\x7c\xb1"
      "\xaf\xb8\x52\x34\x8b\xbd\x97\xaf\xbe\xf6\xf6\xdc\x53\xc7\x2f\x1c\xbb\xb8"
      "\xff\x9d\xd7\x0f\x5f\x5b\x83\x55\x07\x00\x80\xb1\xf3\xad\x2b\x87\x0f\xee"
      "\xfe\xdb\x5f\xee\xdd\xf9\xc1\x1b\xf7\x1f\x29\xb6\x74\xe6\xe7\xe3\xf3\x66"
      "\x9a\xde\x9e\x8e\xfb\x8f\xa4\x03\xff\x85\x68\xaa\xcc\xe7\x0f\x4b\xe7\x03"
      "\x65\x57\xe8\x36\x1d\xf2\x4d\xa5\x30\x11\xf2\x4d\xf6\xc9\x57\x74\xe5\x6b"
      "\xe4\x7c\x5b\x7b\x3f\x17\xcb\x9f\x0e\xcb\x6d\x0c\xc8\xb7\xa5\xa2\xfc\xc9"
      "\x70\x8e\x52\x86\xfa\xc0\x28\xcb\xdb\x71\xb3\x28\x27\x66\x7a\xa6\x27\x26"
      "\x66\x66\x16\xcf\xc9\x8b\xf6\x79\xfd\x74\x39\x73\xf6\xf4\x99\xe7\xce\xd5"
      "\x54\x51\x60\xd5\xfd\xfb\x81\xa2\x28\xf6\x09\xc2\xb8\x85\xd6\x8e\xce\x8f"
      "\xa0\xf6\xba\xd4\x17\xba\xbe\x05\x80\x5a\xc5\xfb\x85\xb7\x38\x1f\xaf\x2c"
      "\xac\x4c\x67\x69\x53\xc3\x95\x7f\xfd\x89\x89\xfe\x9f\xef\xd5\x58\xcd\x3a"
      "\x32\x3e\xd6\x7b\xfb\x57\x7e\x5c\x7e\x6f\x3d\xd6\xbb\xfc\xaa\xf5\xff\xcd"
      "\x85\x35\x5e\x7f\xc6\xca\xf0\x5b\xd3\xd6\x35\xad\xc7\x6a\xcb\xeb\x95\x7f"
      "\x47\xdb\xd3\x74\xbc\x8f\x10\x9f\x5f\x5a\xee\xfe\x27\x2f\x6f\x32\x2c\x6f"
      "\xd8\x03\x80\x41\xf7\x11\x46\xe5\xfe\xc2\xa0\x7a\x4e\xae\x73\x3d\x6e\xd7"
      "\xa0\xfa\xc7\xed\x62\xb3\xfa\x5a\x8a\xf3\xf7\xf0\xf5\x90\xde\xfd\xfb\x89"
      "\x7f\xd3\x51\xf9\x1b\x03\xfd\xfd\x67\xc3\x5d\xff\xdf\xb6\x54\xb9\xda\xeb"
      "\x22\x08\x9b\x3b\xb4\xea\xdc\xf9\x00\xf5\xaa\x38\xad\x8f\xcf\xcd\xb5\x92"
      "\x9c\x1e\x9f\xeb\x8b\xe9\x5b\x2a\xd2\xb7\x56\xa4\x6f\xab\x48\xbf\xa3\x22"
      "\xfd\xce\x8a\x74\x18\x67\xbf\x7f\xf1\xa7\xc5\xab\x65\xd1\xb7\x3d\x5e\xb1"
      "\x78\xfe\xdf\xfe\xb1\x0c\x7b\x3d\x2c\x5f\x67\xbb\x2b\xc5\x1f\x5b\x66\x7d"
      "\xe2\xf5\xc8\xe5\x5e\x8f\x8b\xcf\xfd\x2e\xd7\x4a\xcb\x8f\xcf\x13\xc3\x46"
      "\xf6\xc7\x13\x4f\x9f\xfa\xf2\xb3\xcf\x5c\x5d\x7c\xfe\xbf\xec\x6c\xff\x37"
      "\xd3\xf6\xbe\x2f\x4d\x37\xd3\x6f\xeb\x4a\xca\x90\xaf\x17\xc6\xeb\xea\x9d"
      "\x67\xff\x9b\xbd\xe5\x4c\x0c\xc8\x77\x77\xa8\xcf\x5d\x7d\xf2\xb7\xdf\xef"
      "\xea\xcd\x57\xee\x5a\x5a\x4e\xd1\xb5\x9f\xb9\xa5\x1e\x7b\x7a\x3f\xb7\x63"
      "\x50\xbe\xfb\x7a\xf3\x35\x43\xbe\x6d\x29\xc4\xc3\xa5\x78\x7c\x72\x47\xf8"
      "\x5c\x3e\xfe\xc8\xfb\xd5\xfc\x7d\x4d\x85\xf5\x6d\x84\xf5\x98\x0e\xf5\xc8"
      "\xfb\x95\x9d\x29\x1e\xad\xbb\x31\x6c\x54\x79\x7b\x1c\xf4\xfc\x7f\xde\x3e"
      "\xf7\x14\x8d\xf2\xb9\xd3\x67\x4e\x3d\x96\xa6\xf3\x76\xfa\xe7\xc9\xc6\x96"
      "\x85\xf9\x07\xd6\xb9\xde\xc0\xca\x0d\xdb\xfe\x67\x4f\xd1\xdb\xfe\x67\x7b"
      "\x67\x7e\x63\xa2\x7b\xbf\xb0\x63\x69\x7e\xd9\xbd\x5f\x68\x86\xf9\x73\x03"
      "\xe6\xcf\xa7\xe9\xfc\x7f\xee\x3b\x93\xdb\xda\xf3\x67\x4e\x7e\xef\xcc\xb3"
      "\xab\xbd\xf2\x30\xe6\xce\xbd\xf4\xf2\x77\x4f\x9c\x39\x73\xea\x07\xde\x78"
      "\xe3\x8d\x37\x9d\x37\x75\xef\x99\x80\xb5\x36\xfb\xe2\x0b\xdf\x9f\x3d\xf7"
      "\xd2\xcb\x8f\x9e\x7e\xe1\xc4\xf3\xa7\x9e\x3f\x75\x76\xfe\xd0\xa1\xf9\xb9"
      "\xb9\x43\x5f\x99\x3f\x38\xdb\x3e\xae\x9f\xed\x3e\xba\x07\x36\x93\xa5\x7f"
      "\xfa\x75\xd7\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18\xd6\x0f\x8f\x1d"
      "\xbd\xfa\xd7\xb7\xbe\xf4\xee\x62\xfb\xff\xa5\xf6\x7f\xb9\xfd\x7f\x7e\xf2"
      "\x37\xb7\xff\xff\x49\x68\xff\x1f\xdb\xc9\xe7\x76\xf0\xb9\x1d\xe0\xce\x3e"
      "\xe9\xed\x3c\xa1\x83\xd5\xe9\x90\xaf\x91\xc2\xc7\x43\x7d\x77\x85\x72\x76"
      "\x87\xcf\x7d\x22\xc5\x9d\x71\xfc\x52\xfb\xff\x5c\x5c\xec\xd7\x35\xd7\xe7"
      "\x9e\x30\x3f\xf6\xdf\x9b\xf3\x85\xee\x04\x6e\xe9\x2f\x65\x3a\xf4\x41\x12"
      "\xc7\x0b\xfc\x74\x8a\x2f\xa6\xf8\xd7\x05\xd4\xa8\xfc\x79\xff\xd9\x29\xae"
      "\xea\xdf\x3a\x6f\xeb\xb9\x7f\x0a\xfd\x52\x8c\xa6\xfc\x77\xcb\xfd\x99\xe4"
      "\x7e\x4c\x72\xfb\xef\x41\xfd\x3a\xe5\xfd\xff\xce\xfe\x8b\xfd\xf1\x6a\xd7"
      "\x93\xd5\xb5\x1e\xcd\x09\xeb\x5e\x47\xa0\xbf\x7f\x6d\xb8\xfe\xbf\xd7\x24"
      "\x2c\x75\xf8\x59\x7b\x5d\xba\xce\x18\x6a\xaf\x8b\xb0\xd1\xc2\x8d\x56\xab"
      "\xb5\x9e\xe5\xb5\x5a\x1f\x35\x8a\x87\xb1\xa6\x80\xf5\x53\xf7\xf8\x9f\xf9"
      "\xba\x67\x8e\xcf\xfe\xe9\x1b\x5b\x17\x42\xce\x76\xfd\x89\xde\xfd\x65\xec"
      "\xbf\x14\x56\xa2\xee\xf1\x2f\x6b\x2b\x3f\x5f\x58\x1c\xd7\xf5\x1f\xb2\xfc"
      "\xd5\x1e\xff\xb3\x33\xfe\xdd\xd0\xfb\xbf\x30\x62\x5e\xf3\xf6\xca\xfd\xef"
      "\x2f\xae\xbd\xdb\x55\x6c\xb1\x77\x60\xf9\x5b\x8a\x9e\xf2\xe3\xfa\xe7\x7e"
      "\xa0\x77\x2d\xaf\xfc\x0f\x52\xf9\x79\x6d\x1e\x2e\x06\x95\xdf\xbb\xfe\xad"
      "\x5f\x85\xf2\xe3\x0d\xa1\x21\x7d\x18\xca\xbf\x63\xc8\xf2\xe3\xfa\x5f\x5a"
      "\x6e\xc1\xa9\xc0\xff\xa5\xf2\xf3\xd7\xf6\xc8\x83\xc3\x96\xbf\xb8\x80\x72"
      "\xa2\xb7\x1e\xf1\xba\x71\xbe\xff\x17\xaf\x1b\x67\x37\xc2\xfa\xe7\xbe\x3d"
      "\x97\xbb\xfe\xb7\x3b\x50\xe3\xcd\x54\x3e\x8c\xb3\x51\x19\x67\x76\xb9\x7a"
      "\xc6\xff\xbd\xd0\x5a\xff\xf1\x7f\x57\x38\xc2\x50\x7c\x0e\xe3\x8b\x69\x3a"
      "\xef\x08\xf3\x73\x0e\x71\xbc\x93\xe5\xd6\x3f\x3f\x5f\x91\xff\x0f\xec\x0e"
      "\xcb\x2f\x2b\xfe\xbf\x19\xff\x77\xb4\x7d\x35\xc5\x55\xbf\x87\x3c\xfe\x6f"
      "\xde\x1e\x9b\x7d\xa6\x27\xba\xa6\x1b\x7d\xbe\xdb\xcd\xba\xaf\x81\x51\xf5"
      "\xde\xaa\xdd\xff\xeb\x7a\x62\x6e\x03\xdc\x47\x11\xc6\x27\x94\xb6\xb9\xdb"
      "\x0e\xad\x56\xab\xd6\x9b\x7c\xee\x30\xd6\xab\xee\xef\xbf\xee\xf3\x84\xba"
      "\xcb\xaf\xfb\xfb\xaf\x12\xc7\xff\x8d\xc7\xf0\x71\xfc\xdf\x98\x1e\xc7\xff"
      "\x8d\xe9\x71\xfc\xdf\x98\xde\xbe\xae\xf8\xe1\xd2\xa0\xbd\xf1\xfb\x8a\xe3"
      "\xff\xc6\xf4\x38\xfe\x6f\x4c\xbf\x27\x94\x1b\xc7\x07\xde\x53\x91\xfe\xc9"
      "\x8a\xf4\xbd\x15\xe9\xf7\x56\xa4\xdf\x57\x91\xfe\xa9\x8a\xf4\xfd\x15\xe9"
      "\xf7\x57\xa4\x3f\x50\x91\x7e\x77\x45\xfa\x83\x15\xe9\x9f\x09\x7f\xf1\x98"
      "\xfe\xd9\x8a\xcf\x3f\x54\x91\xfe\xc8\x47\xa7\xcf\xff\xa8\xe2\xf3\x9b\x5d"
      "\x6e\x8f\x32\xae\xeb\x0f\xe3\x2c\xb6\xcf\xf3\xfb\x87\xf1\x91\xef\xff\x0c"
      "\xfa\xfd\xef\xaa\x48\x07\x46\xd7\xcf\xde\x38\xf0\xe4\x33\xbf\xfb\x76\x73"
      "\xb1\xfd\xff\x74\xe7\x7a\x48\xbe\x8f\x77\x24\x4d\x37\xd2\xb9\x73\x3c\x5f"
      "\x8a\xd7\x4f\x26\x53\xda\x5b\x69\xfa\xef\x21\x7d\xa3\x5f\xef\x80\x71\x12"
      "\xfb\xcf\x88\xff\xdf\x1f\xae\x48\x07\x46\x57\x7e\xce\xcb\xef\x1b\xc6\x50"
      "\xd9\xbf\xc7\x9e\x61\xfb\xad\x1a\x74\x9c\xcf\x68\xf9\x5c\x8a\x3f\x9f\xe2"
      "\x2f\xa4\xf8\xd1\x14\xcf\xa4\x78\x36\xc5\x07\x52\x3c\xb7\x4e\xf5\x63\x6d"
      "\x3c\xf9\xdb\x3f\x1c\x7e\xb5\x5c\x3a\xdf\xdf\x11\xd2\x87\x7d\x9e\x3c\xb6"
      "\x07\x8a\xfd\x44\xcd\x0f\x59\x9f\x78\x7d\x60\xb9\xcf\xb3\xc7\x7e\xfc\x96"
      "\x6b\xa5\xe5\xdf\x66\x73\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xda\x4c\xb4\x5f\x0f"
      "\x1e\xdc\x53\x16\xc5\xe5\x37\x2f\x1d\x7d\xfa\xf8\xe9\xd9\x85\x39\x8f\x77"
      "\x72\x34\xdb\xaf\x53\x5d\x53\x8d\xce\xe7\x8a\xe2\xb1\x14\x4f\xa6\xf8\x97"
      "\xe9\xcd\x8d\xf7\x5f\x39\xd9\x1d\xdf\x4c\x71\x59\xcc\x15\x65\x51\x76\xe6"
      "\x17\xdf\xbc\xde\x29\xe9\xce\xa2\x28\xce\x17\xfb\x8a\x2b\x45\xb3\xd8\x7b"
      "\xf9\xea\x6b\x6f\xcf\x3d\x75\xfc\xc2\xb1\x8b\xfb\xdf\x79\xfd\xf0\xb5\xb5"
      "\xfb\x06\x00\x00\x00\x60\xf3\xfb\x7f\x00\x00\x00\xff\xff\x4d\xda\x1c"
      "\x2a",
      2682);
  syz_mount_image(
      /*fs=*/0x20000140, /*dir=*/0x20000000,
      /*flags=MS_POSIXACL|MS_NOEXEC|MS_NODIRATIME|MS_NODEV*/ 0x1080c,
      /*opts=*/0x20000200, /*chdir=*/1, /*size=*/0xa7a, /*img=*/0x20000980);
  memcpy((void*)0x20000200,
         "\x12\x01\x00\x00\xfa\x5f\x1c\x08\x90\x16\x12\x07\x9d\x78\x01\x02\x03"
         "\x01\x09\x02\x1b\x00\x01\x00\x00\x00\x00\x09\x04\x00\x00\x01\x95\x10"
         "\x46\x00\x09\x05\x81",
         39);
  syz_usb_connect(/*speed=*/0, /*dev_len=*/0x2d, /*dev=*/0x20000200,
                  /*conn_descs=*/0);
  return 0;
}