// https://syzkaller.appspot.com/bug?id=101b7e71f53b37caf00bf159bd293d6d6512242a
// 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 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_mount
#define __NR_mount 40
#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 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;
}

//% 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;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;
  while (umount2(dir, umount_flags) == 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, umount_flags) == 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, umount_flags))
        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, umount_flags))
          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 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");
  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);
    reset_loop();
    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);
  }
}

void execute_one(void)
{
  memcpy((void*)0x20000000, "hfsplus\000", 8);
  memcpy((void*)0x20000080, "./file0\000", 8);
  memcpy((void*)0x20000500,
         "\x70\x61\x72\x74\x3d\x30\x78\x30\x00\x02\xa2\x7f\x9e\xdc\x6b\x44\x90"
         "\x00\x00\xc6\x3d\x5f\x85\x2c\x67\x69\x64\x3d",
         28);
  sprintf((char*)0x2000051c, "%023llo", (long long)-1);
  sprintf((char*)0x20000533, "%023llo", (long long)-1);
  sprintf((char*)0x2000054a, "0x%016llx", (long long)0);
  *(uint16_t*)0x2000055c = 0;
  *(uint8_t*)0x2000055e = -1;
  sprintf((char*)0x2000055f, "%020llu", (long long)-1);
  sprintf((char*)0x20000573, "0x%016llx", (long long)-1);
  memcpy((void*)0x20000585, "\x45\x99", 2);
  memcpy(
      (void*)0x20001600,
      "\x78\x9c\xec\xdd\x4b\x68\x1c\xe7\x1d\x00\xf0\xff\xac\x56\xab\x5d\x15\x1c"
      "\x39\xf1\x23\x2d\x81\x2c\x31\xa4\xa5\xa2\xb6\x64\xa1\xb4\xea\xa5\x6e\x29"
      "\xad\x0e\xa1\x84\xf4\xd0\xf3\x62\xcb\xf1\xe2\xb5\x1c\x24\xa5\xc8\xa6\x34"
      "\x4a\x1f\xf7\x1e\x72\xea\x29\x3d\xe8\x16\x7a\x28\xe9\xdd\xd0\x9e\x1b\x02"
      "\x25\x3d\xea\x18\x28\xe4\x92\x93\x6e\x2a\x33\x3b\xb3\x0f\x69\x5f\xb2\x2d"
      "\x4b\x4e\x7f\x3f\x31\x33\xdf\xcc\xf7\x98\x6f\xfe\xf3\xda\xd9\x45\x4c\x00"
      "\xff\xb7\x56\xe7\xa3\xfc\x28\x92\x58\x9d\x7f\x73\x3b\x9d\xdf\xdb\x5d\x6a"
      "\x4d\xed\x2e\xcd\xe4\xd9\xad\x88\xa8\x44\x44\x29\xa2\xdc\x9e\x44\xb2\x1e"
      "\x59\xee\x8d\x7c\x88\x6f\xa6\x0b\xf3\xf2\xc9\xb0\xf5\x7c\xd8\x5c\x79\xfb"
      "\xf3\xaf\xf6\xbe\x68\xcf\x95\xf3\x21\x2b\x5f\x1a\x55\x6f\x80\xca\xd1\x45"
      "\x3b\xf9\x10\xf5\x88\x98\xca\xa7\x47\x4d\x0f\x69\xf1\x93\xc3\xab\xef\x6b"
      "\xef\xe6\xd0\xf6\x26\x95\x74\xb6\x30\x0d\xd8\x95\x22\x70\xf1\xe7\x27\x6a"
      "\x15\x9e\xd8\xc1\x11\x3b\x9d\xbc\x8f\xff\x9d\x8d\x3b\x65\x06\x54\x3f\xce"
      "\x79\x0b\x9c\x51\x49\xfb\xbe\x99\xeb\x9e\xea\x73\x11\xb3\x11\x51\x8d\x68"
      "\xdf\xf5\xf3\xab\x43\xe9\xd9\xf7\xf0\xe9\xda\x39\xed\x0e\x00\x00\x00\xc0"
      "\x71\xd5\x8e\x5f\xe5\x85\xfd\xd8\x8f\xed\x38\x77\x12\xdd\x01\x00\x00\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\xaf\xab\xfc\xfd\xff\x49\x3e\x94\x8a\x74\x3d\x92"
      "\xe2\xfd\xff\x95\x7c\x59\xe4\xe9\x33\x68\xfc\x8b\x10\x3f\x9b\x69\x4f\x1f"
      "\x9d\x7c\x67\x00\x00\x00\x00\x00\x00\x00\xe0\xc4\xbd\xba\x1f\xfb\xb1\x1d"
      "\xe7\x8a\xf9\x83\x24\xfb\xcd\xff\xb5\x9e\xdf\xf8\xbf\x11\xef\xc5\x66\xac"
      "\xc5\x46\x5c\x8d\xed\x68\xc4\x56\x6c\xc5\x46\x2c\x46\xc4\x5c\x4f\x43\x95"
      "\xed\xc6\xd6\xd6\xc6\x62\x56\x33\xe2\xc2\x88\x9a\xd7\xe3\xd3\x01\x35\xaf"
      "\x0f\xef\xe3\x8d\xfe\xd9\x76\xbf\x7e\xfe\xe4\xdb\x0e\x00\x00\x00\x00\x00"
      "\x00\x00\x67\x54\x75\x4c\xfe\xdd\xe9\xa3\xcb\x7e\x17\xab\xdd\xdf\xff\x01"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x2c\x48\x22\xa6\xda\x93\x6c"
      "\xb8\x50\xa4\xe7\xa2\x54\x8e\x88\x6a\x51\x6e\x27\xe2\xd3\x88\xa8\x9c\x6e"
      "\x6f\x8f\x25\x19\xb4\xe4\xd1\xa9\x74\x05\x00\x00\x00\x1e\x5f\xb5\x7f\x36"
      "\xa9\x4e\x50\xe7\x85\xf7\x63\x3f\xb6\xe3\x5c\x31\x7f\x90\x64\xcf\xfc\x97"
      "\xb2\xa7\xe3\x6a\xbc\x17\xeb\xb1\x15\xcd\xd8\x8a\x56\xac\xc5\xad\xfc\x19"
      "\x3a\x7d\xea\x2f\xed\xed\x2e\xb5\xf6\x76\x97\xee\xa5\xc3\xd1\x76\x7f\xfc"
      "\xe5\xb1\xba\x9e\xb5\x18\xed\xef\x1e\x06\xaf\xf9\xe5\xac\x44\x2d\x6e\x47"
      "\x33\x5b\x72\x35\x6e\x46\x12\x07\x99\x52\xde\xca\xcb\x7b\xbb\x4b\xe9\xf4"
      "\xde\xe0\x7e\x7d\x90\xf6\x29\xf9\x51\x6e\x44\x6f\xa6\x7a\xd2\xb7\xd2\xd1"
      "\xe5\x4f\xb2\xf4\x9f\xfa\xbf\x45\x28\x1f\x6b\x13\x27\x74\xb8\xd1\xd2\xd0"
      "\x92\x73\x59\xee\x74\x27\x22\x0b\x79\xdf\xd2\x1a\xe7\x8b\x08\x0c\x8e\xc4"
      "\xd8\xbd\x53\x1e\xb9\xa6\xc5\x28\x75\xbe\xf9\xb9\x30\x7a\x4d\x83\x63\xfe"
      "\xc1\xe8\xb5\xcf\x1e\x2a\x75\xf4\x9b\x9b\xd3\x72\x38\x12\xd7\xa3\xd4\xd9"
      "\x43\x97\x46\x47\x22\xe2\xdb\x7f\xff\xf8\x57\x77\x5a\xeb\x77\xef\xdc\xde"
      "\x9c\x3f\x3b\x9b\x34\xd0\xfb\x63\x4b\x1c\x8e\xc4\x52\x4f\x24\x2e\xb7\x23"
      "\x50\x8b\x88\xe7\x3e\x12\xe3\x2d\x64\x91\xb8\xd8\x99\x5f\x8d\x9f\xc5\x2f"
      "\x63\x3e\xbe\x9c\x79\x2b\x36\xa2\x19\xbf\x8e\x46\x6c\xc5\x5a\xbd\xc8\x6f"
      "\xe4\xc7\x73\x3a\x9e\x1b\x7d\xcc\x7c\x36\xdb\x3b\xf7\xd6\xb8\x9e\xa4\xe7"
      "\x64\xbd\x73\xfd\x1a\xd4\xa7\x7a\xf4\xf5\x29\xea\xf1\xd3\x2c\xd5\x88\xd7"
      "\xb2\x7d\x7a\x2e\x9a\x91\xc4\xfd\x88\x58\x8b\x37\xb2\xbf\xeb\xb1\xd8\xb9"
      "\x1a\x74\xf7\xf0\xc5\x09\xce\xfa\xd2\x04\x57\xda\x1e\x57\xbe\x93\x4d\x3a"
      "\x61\x8a\xda\xf0\xb2\x7f\x9d\xac\xc9\xa7\x25\x8d\xeb\xf9\x9e\xb8\xf6\x5e"
      "\x73\xe7\xb2\xbc\xee\x92\xa9\x9e\x6b\xf6\x8b\x03\xa3\x54\xdc\xeb\x26\xbf"
      "\x1f\xf5\x28\x7f\x2b\x4f\xa4\x2d\xfc\x7e\xe4\xfd\xe1\x59\x3b\x1c\x89\xc5"
      "\x9e\xe3\xe5\xa5\x61\xc7\x4b\x3b\xa4\x7f\x39\x48\xc7\x9b\xad\xf5\xbb\x1b"
      "\x77\x1a\xef\x16\x79\x07\xa3\xd7\xf7\x7a\x3e\x4d\xcf\xa3\x3f\x8e\xb8\x4b"
      "\x9c\xc8\x6d\x7a\xa4\x74\x0f\xbf\x18\xd5\x7c\xe3\xce\x67\xe3\x24\x3b\xa7"
      "\x16\xb2\xbc\x97\x3a\xbd\x2a\xe2\xf5\x9f\x66\xc4\x62\x96\x77\xa1\xd3\x4a"
      "\xff\x1d\x37\xcd\xbb\xd8\xa9\xd7\x3e\x53\x7f\x11\xf7\xe3\x56\xdf\x99\xfa"
      "\xfd\x58\x8e\xe5\x58\xc9\x4a\x5f\xca\x4a\x4f\x1f\xb9\x63\xa5\x79\x97\x3b"
      "\x2d\xf5\x5f\xc3\xd3\xbc\xf4\x93\x56\xb9\xf3\xc3\x4e\xef\xe7\xad\xfb\xd1"
      "\x6a\x7f\x1e\x8a\xd8\x79\xee\x2f\xdb\x00\x5f\x67\xb3\xdf\x9d\xad\xd4\xfe"
      "\x5b\xfb\x57\xed\xa3\xda\x1f\x6a\x77\x6a\x6f\x56\x7f\x32\xf3\x83\x99\x57"
      "\x2a\x31\xfd\xcf\xe9\x1f\x96\x17\xa6\x5e\x2f\xbd\x92\xfc\x2d\x3e\x8a\xdf"
      "\x76\x9f\xff\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x80\xc7\xb7\xf9\xe0\xe1\xdd\x46\xab\xb5"
      "\xb6\x31\x38\x51\x1a\x9c\x95\x8c\xae\xd5\x68\x1d\x14\x2f\x12\x1b\x51\xa6"
      "\x2f\x91\xe4\xaf\xca\x99\xa0\x70\xb2\xf9\xe0\xe1\xc1\xd8\x06\x47\x27\x66"
      "\xf2\xee\x3d\x66\xf5\xa7\x99\x28\xde\xd6\x38\xbe\x70\xfd\x04\xbb\x91\xec"
      "\x1c\xde\x5f\xd5\xf1\xfb\xa2\x78\xcb\xd3\x04\xab\x48\xf2\xd7\x54\xf6\x1c"
      "\x5a\x11\xf1\xd8\x7d\x2e\xd6\xdc\x5d\x32\x7d\x06\x76\xe5\xe1\x44\xfd\xd8"
      "\xb5\xea\x47\xb6\x2b\x4f\x14\x07\x6c\x4f\xe1\xe3\x1f\xbd\xb5\x41\xfb\x6b"
      "\x2a\x22\x06\x15\x1e\x73\xe1\x98\x7a\x0a\x17\x1f\xe0\x54\x5d\xdb\xba\xf7"
      "\xee\xb5\xcd\x07\x0f\xbf\xd7\xbc\xd7\x78\x67\xed\x9d\xb5\xf5\xe9\xe5\xe5"
      "\x95\x85\x95\xe5\x37\x96\xae\xdd\x6e\xb6\xd6\x16\xda\xe3\x9e\x0a\xcf\xfe"
      "\xad\x7a\xc0\x09\xe9\xfd\x38\xd1\x51\x89\x88\x57\xc7\xd7\x1d\xf1\xa2\x56"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x04\x3d\x8b\xff\x85\x38\xed\x6d"
      "\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x9e\x6f\xab\xf3\x51\x7e\x14\x49\x2c\x2e\x5c\x5d\x48\xe7"
      "\xf7\x76\x97\x5a\xe9\x50\xa4\xbb\x25\xcb\x11\x51\x8a\x88\xe4\x37\x11\xc9"
      "\x3f\x22\x6e\x44\x7b\x88\xb9\x9e\xe6\x92\x61\xeb\xf9\xb0\xb9\xf2\xf6\xe7"
      "\x5f\xed\x7d\xd1\x6d\xab\x5c\x94\x2f\x45\xec\x0c\xad\x37\xaa\xcd\xae\x9d"
      "\x7c\x88\x7a\x44\x4c\xe5\xd3\x27\xd0\xd7\xde\xcd\xf1\xed\x55\xba\xc9\x99"
      "\x01\xd9\x49\x67\x2b\xd2\x80\x5d\x29\x02\x07\xa7\xed\x7f\x01\x00\x00\xff"
      "\xff\xa7\xdb\xf2\x3d",
      1805);
  syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x20000080,
                  /*flags=MS_I_VERSION|MS_NOEXEC|MS_NODEV*/ 0x80000c,
                  /*opts=*/0x20000500, /*chdir=*/1, /*size=*/0x70d,
                  /*img=*/0x20001600);
  memcpy((void*)0x200002c0, ".\000", 2);
  memcpy((void*)0x20000200, "./file0/../file0\000", 17);
  syscall(__NR_mount, /*src=*/0x200002c0ul, /*dst=*/0x20000200ul, /*type=*/0ul,
          /*flags=MS_SHARED|MS_SYNCHRONOUS|MS_RDONLY|MS_DIRSYNC|MS_BIND*/
          0x101091ul, /*data=*/0ul);
}
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);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}