// https://syzkaller.appspot.com/bug?id=4a19fb793705cb3c70980a497cdac7d6a2d42dbe
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.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/mman.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/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

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

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

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

//% 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;
}

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 reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
}

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

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x20000000, "hfsplus\000", 8);
  memcpy((void*)0x20000080, "./bus\000", 6);
  memcpy(
      (void*)0x20000580,
      "\x78\x9c\xec\xdd\xcf\x6f\x1c\x67\xfd\x07\xf0\xf7\xac\xd7\x8e\x9d\x6f\x95"
      "\xaf\xd3\x26\x6d\x84\x8a\x88\x12\xa9\x20\x45\x24\x8e\x2d\x17\xcc\x05\x83"
      "\x10\xf2\xa1\x42\x55\x39\x70\xb6\x12\xa7\xb1\xb2\x71\x2a\xdb\x45\x6e\x85"
      "\xc0\x05\x04\x27\x24\x0e\xfd\x03\x0a\x92\x6f\x9c\x90\xb8\x07\x85\x73\xb9"
      "\xf5\xea\x63\x25\x24\x2e\x11\x87\x88\x8b\xd1\xcc\xce\xda\x6b\xef\x3a\xb6"
      "\x13\xff\x84\xd7\x2b\x1a\x3f\xcf\xcc\x33\xf3\xcc\x67\x3e\xfb\xcc\xcc\xfe"
      "\xc8\x6a\x03\xfc\xcf\x9a\xb9\x91\xe6\xe3\x14\x99\xb9\xf1\xce\x4a\x39\xbf"
      "\xbe\x36\xd1\x5a\x5f\x9b\x38\x57\x37\xb7\x92\x94\xf5\x46\xd2\x6c\x17\x29"
      "\x16\x92\xe2\x49\x32\x5d\xb6\x17\xed\xe5\x65\x99\xee\xb2\xc7\xa7\xf3\x53"
      "\xef\x7d\xf1\x74\xfd\xcb\xf6\x5c\x33\x5d\xdb\x35\x9e\xb7\x5d\x1f\x7d\xd6"
      "\x5d\xad\xa7\x5c\x4d\x32\x50\x97\xbd\x06\xf7\xbb\x8b\x6d\xfd\xdd\x49\xf2"
      "\x4a\xcf\x2a\x43\xfb\xed\x6b\xdb\x8a\x65\xd2\xae\xd7\x25\x9c\xb8\x8d\x1e"
      "\xab\x07\xd9\xfc\x20\xe7\x2d\x70\xca\x74\xee\x4e\x45\xfb\xbe\xd9\x63\x34"
      "\x39\x9f\x64\xb8\x7e\x1e\x90\xfa\xea\xd0\x38\xbe\x08\x8f\xc6\x81\xae\x72"
      "\x00\x00\x00\x70\x46\x7d\xfe\xe8\xa4\x23\x00\x00\x00\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\xb3\xa7\xfe\xfd\xff\xa2\x9e\x1a\x75\x99\xab\x29\x3a\xbf\xff\x3f"
      "\xd4\x59\x56\xd7\xcf\xb4\xc7\x27\x1d\x00\x00\x00\x00\x00\x00\x00\x00\x1c"
      "\x82\xaf\x3d\xcb\xb3\xac\xe4\x42\x67\x7e\xa3\xa8\x3e\xf3\xbf\x56\xcd\x5c"
      "\xca\xbf\x37\x92\xff\xcb\x87\x59\xca\x5c\x16\x73\x33\x2b\x99\xcd\x72\x96"
      "\xb3\x98\xdb\x49\x46\xbb\x3a\x1a\x5a\x99\x5d\x5e\x5e\xbc\xbd\xb9\x65\xa9"
      "\xff\x96\xe3\x7d\xb7\x1c\x3f\xae\x23\x06\x00\x00\x00\x00\x00\x00\x80\xff"
      "\x4a\xbf\xcc\xcc\xd6\xe7\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x70\x1a\x14\xc9\x40\xbb\xa8\xa6\x4b\x9d\xfa\x68\x1a\xcd\xb4\xdb\x86\xca"
      "\xf5\x56\x93\xbf\x77\xea\x67\x44\xd1\x6f\xe1\xe3\xe3\x8f\x03\x00\x00\x00"
      "\x5e\xca\xf0\x0b\x6c\xf3\xff\xcf\xf2\x2c\x2b\xb9\xd0\x99\xdf\x28\xaa\xd7"
      "\xfc\xaf\x57\xaf\x97\x87\xf3\x61\x16\xb2\x9c\xf9\x2c\xa7\x95\xb9\xdc\xad"
      "\x5f\x43\x97\xaf\xfa\x1b\xeb\x6b\x13\xad\xf5\xb5\x89\x87\xe5\xd4\xdb\xef"
      "\xf7\xfe\x79\xa0\x30\xaa\x1e\xeb\xf7\x17\xfa\xef\xf9\x4a\xb5\xc6\x48\xee"
      "\x65\xbe\x5a\x72\x33\x77\xaa\x60\xee\xa6\x51\x6d\x59\xba\xd2\x89\xa7\x7f"
      "\x5c\x9f\x94\x31\x15\xdf\xad\xed\x33\xb2\x66\x9d\xd6\x72\x67\xbf\xdf\xed"
      "\x5d\x84\x43\x71\xd0\xb7\x22\x46\xcb\xe0\x92\xcd\x8c\x8c\xd5\xb1\x95\xd9"
      "\xb8\xd8\xce\x40\x51\xbd\x51\x93\xec\xcc\xc4\x9e\x8f\x4e\x73\xe7\x9e\xd2"
      "\xc8\xe0\xe6\x9e\x6e\xa7\xb1\xf9\xce\xcf\xa5\x23\xc8\xf9\xf9\xba\x2c\x8f"
      "\xe7\x37\x47\x9a\xf3\x83\xda\xcc\x44\x23\x55\x26\xc6\xbb\x46\xdf\xeb\xcf"
      "\xcf\x44\xf2\xf5\xbf\xfc\xe9\x27\xf7\x5b\x0b\x0f\xee\xdf\x5b\xba\x71\x7a"
      "\x0e\x69\x0f\x03\x3b\x17\x8c\x6c\x55\xbb\xc7\xc4\x44\x57\x26\xde\x38\xd3"
      "\x99\x68\x1e\x70\xfd\xb1\x2a\x13\x97\x37\xe7\x67\xf2\xc3\xfc\x38\x37\x72"
      "\x35\xef\x66\x31\xf3\xf9\x69\x66\xb3\x9c\xb9\x6c\xd4\xed\xb3\xf5\x78\x2e"
      "\xff\x8e\x3e\x3f\x53\xd3\xdb\xe6\xde\xdd\x2b\x92\xa1\x7a\x84\xb6\x1f\xb3"
      "\xfd\xc4\x74\x35\x3f\xa8\x6a\xb3\xb9\x56\x6d\x7b\x21\xf3\x29\xf2\x28\x77"
      "\x33\x97\xb7\xab\x7f\xe3\xb9\x9d\x6f\x65\x32\x93\x99\xea\x7a\x84\x2f\xef"
      "\x1a\x77\x75\x6c\xd5\x59\xdf\xd8\x79\xd6\x77\x1e\xe9\xbf\xf6\x0d\xfe\xfa"
      "\x37\xea\x4a\x39\xc0\x7e\xbb\x35\xd0\xa6\x9f\x77\xc4\x3d\xa3\xf3\x90\xb5"
      "\xaf\xfd\x65\x5e\x2f\x76\xe5\xb5\x3d\xea\x9f\x6e\xae\x75\xb1\xeb\x3c\x18"
      "\xeb\xca\xd2\xab\x9d\xec\x0c\xf6\xed\xfc\x45\xae\x8d\xcd\xaf\xd4\x95\x72"
      "\x1f\xbf\xaa\xcb\xd3\x61\xb4\xce\x44\x79\x02\x75\xee\x12\x9d\xe8\x5e\x6b"
      "\x67\xa2\x59\xdd\x8b\x7a\xc7\xf9\x1f\xaa\x73\x63\xa9\xb5\xf0\x60\xf1\xfe"
      "\xec\x07\xbb\xf4\xbf\xba\x63\xfe\xad\xba\x2c\x87\xd5\xda\x57\xf7\x1b\x65"
      "\xff\x87\xe2\x70\x95\xe3\xe5\xd5\x0c\xd7\x57\x92\xed\xa3\xa3\x6c\x7b\x6d"
      "\xf3\x2a\x73\x71\xdb\x5d\x75\xa8\xfe\xc4\xa5\xdd\xd6\xe8\x69\xbb\x5c\xb5"
      "\x15\x45\xe7\x4c\xfd\xd1\xae\x67\xea\x50\xfd\x1c\xae\xb7\xa7\xf1\xaa\xed"
      "\x8d\xbe\x6d\x13\x55\xdb\x95\xae\xb6\x6d\xcf\xb7\xf2\x28\xad\xdc\x3d\x86"
      "\xfc\x01\xf0\x92\x46\x73\x7e\x68\xe4\x1f\x23\x9f\x8f\x7c\x36\xf2\xeb\x91"
      "\xfb\x23\xef\x0c\x7f\xff\xdc\xb7\xcf\xbd\x39\x94\xc1\xbf\x0d\x7e\xa7\x39"
      "\x36\xf0\x56\xe3\xcd\xe2\xcf\xf9\x2c\x3f\xdf\x7a\xfd\x0f\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\xbc\xb8\xa5\x8f\x3e\x7e\x30\xdb\x6a\xcd\x2d\xf6\xaf\x34\x76\x6f\xda"
      "\xa3\xb2\x57\xcf\x3b\x2a\x45\xfd\x83\x3e\x2f\xb4\xaf\x53\x58\x19\x4e\xb2"
      "\x6d\xc9\x60\xb9\xe0\xd8\xc3\x18\xd9\x19\x46\x4f\x65\xe3\x17\xc9\xb1\xe7"
      "\xa7\xf3\x23\x82\xfd\xd7\xf9\x5d\x59\x69\x66\x3f\x1d\x4e\xef\xb5\xce\x27"
      "\x27\x3e\x12\x4e\x7b\x65\x20\xfd\x07\xc0\x09\x5f\x98\x80\x23\x77\x6b\xf9"
      "\xe1\x07\xb7\x96\x3e\xfa\xf8\x9b\xf3\x0f\x67\xdf\x9f\x7b\x7f\x6e\x61\x70"
      "\x72\x72\x6a\x6c\x6a\xf2\xed\x89\x5b\xf7\xe6\x5b\x73\x63\xed\xbf\x27\x1d"
      "\x25\x70\x14\xb6\x6e\xfa\x27\x1d\x09\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\xb0\x5f\xfd\xbe\x18\x70\xed\x95\xbd\xbe\x34\xb2\xaf\xef\x78\xf8\x9f\x85"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\xc0\xa1\x98\xb9\x91\xe6\xe3\x14\xb9\x3d\x76\x73\xac\x9c\x5f"
      "\x5f\x9b\x68\x95\x53\xa7\xbe\xb5\x66\x33\x49\xa3\x91\x14\x3f\x4b\x8a\x27"
      "\xc9\x74\xda\x53\x46\xbb\xba\x2b\xf2\xc7\x27\xd9\xe8\xb3\x9f\x4f\xe7\xa7"
      "\xde\xfb\xe2\xe9\xfa\x97\x5b\x7d\x35\xdb\xeb\x27\x8d\xba\x7c\x09\xab\xf5"
      "\x94\xab\x49\x06\xea\xf2\xb0\xfa\xbb\xf3\xd2\xfd\x15\xff\xea\x1c\x61\x99"
      "\xb0\xeb\x9d\xc4\xc1\x49\xfb\x4f\x00\x00\x00\xff\xff\xe4\xc0\xf4\xa9",
      1691);
  syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x20000080,
                  /*flags=MS_LAZYTIME|MS_SYNCHRONOUS*/ 0x2000010,
                  /*opts=*/0x20000500, /*chdir=*/0xd, /*size=*/0x69b,
                  /*img=*/0x20000580);
  memcpy((void*)0x20000000,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         250);
  syscall(__NR_mknod, /*file=*/0x20000000ul, /*mode=*/0ul, /*dev=*/0x700);
  memcpy((void*)0x20001240,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         250);
  memcpy((void*)0x20000bc0, "./file0\000", 8);
  syscall(__NR_link, /*old=*/0x20001240ul, /*new=*/0x20000bc0ul);
}
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);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}