// https://syzkaller.appspot.com/bug?id=0a52da0bbfd5ff2cd097edb1607fd2bda63a1c4d
// 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 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:
  while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void 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*)0x20000100, "ext4\000", 5);
  memcpy((void*)0x20000200, "./file1\000", 8);
  memcpy(
      (void*)0x200007c0,
      "\x78\x9c\xec\xdd\xdf\x6b\x5c\x59\x1d\x00\xf0\xef\xbd\xc9\x64\xd3\x36\x6b"
      "\x66\x55\x64\x5d\x70\x77\x71\x57\xd2\x45\x3b\x93\x6c\xdc\x6d\x10\x69\x2b"
      "\x88\x3e\x15\xd4\xfa\x1e\x63\x32\x09\x21\x93\x4c\xc8\x4c\x6a\x13\x8a\xa6"
      "\xf8\x07\x08\x22\x2a\xf8\xe4\x93\x2f\x82\x7f\x80\x20\xfd\x13\x44\x28\xe8"
      "\xbb\xa8\x28\xa2\xad\x3e\x6a\xaf\xcc\xcc\x8d\x36\xc9\x4c\x32\x35\x93\x4c"
      "\x77\xf2\xf9\xc0\xc9\x3d\xe7\xfe\xfa\x9e\x73\xc9\x9c\xb9\x77\xee\xe1\xde"
      "\x00\x2e\xac\x37\x23\xe2\x56\x44\x8c\x44\xc4\x3b\x11\x31\x99\xcf\x4f\xf3"
      "\x34\xdf\x2c\xec\xb5\xd7\x7b\xf2\xf8\xfe\x62\x33\x25\x91\x65\x77\xfe\x96"
      "\x44\x92\xcf\xdb\xdf\x57\xb3\x3c\x1a\x11\x57\xda\x9b\xc4\x78\x44\x7c\xed"
      "\xcb\x11\xdf\x4c\x8e\xc6\xad\xef\xec\xae\x2d\x54\xab\x95\xad\xbc\x5c\x6e"
      "\xac\x6f\x96\xeb\x3b\xbb\xd7\x56\xd7\x17\x56\x2a\x2b\x95\x8d\xd9\xd9\x99"
      "\xf7\xe7\xae\xcf\xbd\x37\x37\x9d\xe5\x4e\xd5\xce\x62\x44\xdc\xf8\xe2\x9f"
      "\x7e\xf8\xbd\x9f\x7d\xe9\xc6\xaf\x3e\xf3\xad\xdf\xcf\xff\xe5\xea\xb7\x9b"
      "\xd5\xfa\xfc\xc7\xda\xf5\x8e\x88\xc5\x53\x05\xe8\xa2\xbd\xef\x42\xeb\x58"
      "\xec\x6b\x1e\xa3\xad\xb3\x08\x36\x00\x23\x79\x7b\x0a\x23\x83\xae\x09\x00"
      "\x00\xbd\x68\x9e\xe3\x7f\x38\x22\x3e\xd9\x3a\xff\x9f\x8c\x91\xd6\xd9\x1c"
      "\x00\x00\x00\x30\x4c\xb2\x9b\x13\xf1\xaf\x24\x22\x03\x00\x00\x00\x86\x56"
      "\x1a\x11\x13\x91\xa4\xa5\x7c\x2c\xc0\x44\xa4\x69\xa9\xd4\x1e\xc3\xfb\xd1"
      "\xb8\x9c\x56\x6b\xf5\xc6\xa7\x97\x6b\xdb\x1b\x4b\xcd\x65\x11\xc5\x28\xa4"
      "\xcb\xab\xd5\xca\x74\x3e\x56\xb8\x18\x85\xa4\x59\x9e\xc9\xc7\xd8\xee\x97"
      "\xdf\x3d\x54\x9e\x8d\x88\x57\x22\xe2\x07\x93\x97\x5a\xe5\xd2\x62\xad\xba"
      "\x34\xe8\x1f\x3f\x00\x00\x00\xe0\x82\xb8\xf2\xc6\xc1\xeb\xff\x7f\x4e\xa6"
      "\xad\x3c\x00\x00\x00\x30\x64\x8a\x5d\x0b\x00\x00\x00\xc0\xb0\x70\xc9\x0f"
      "\x00\x00\x00\xc3\xcf\xf5\x3f\x00\x00\x00\x0c\xb5\xaf\xdc\xbe\xdd\x4c\xd9"
      "\xfe\x7b\xbc\x97\xee\xee\x6c\xaf\xd5\xee\x5e\x5b\xaa\xd4\xd7\x4a\xeb\xdb"
      "\x8b\xa5\xc5\xda\xd6\x66\x69\xa5\x56\x5b\x69\x3d\xb3\x6f\xfd\xa4\xfd\x55"
      "\x6b\xb5\xcd\xcf\xc6\xc6\xf6\xbd\x72\xa3\x52\x6f\x94\xeb\x3b\xbb\xf3\xeb"
      "\xb5\xed\x8d\xc6\xfc\xea\x81\x57\x60\x03\x00\x00\x00\xe7\xe8\x95\x37\x1e"
      "\xfe\x2e\x89\x88\xbd\xcf\x5d\x6a\xa5\xc8\x9f\x03\x08\x70\xc0\x1f\x07\x5d"
      "\x01\xa0\x9f\x46\x06\x5d\x01\x60\x60\x46\x07\x5d\x01\x60\x60\x0a\x27\xae"
      "\xa1\x87\x80\x61\x97\x9c\xb0\xbc\xeb\xe0\x9d\x5f\xf7\xbf\x2e\x00\x00\xc0"
      "\xd9\x98\xfa\xf8\xd1\xfb\xff\x63\xf9\xb2\x93\x7f\x1b\x00\x3e\xc8\x8c\xf5"
      "\x01\x80\x8b\xc7\xdd\x3d\xb8\xb8\x0a\x46\x00\xc2\x85\xf7\xa1\xf6\xe4\xa5"
      "\x6e\xcb\x4f\x7f\xff\x3f\xcb\x9e\xbb\x52\x00\x00\x40\x5f\x4d\xb4\x52\x92"
      "\x96\xf2\x7b\x81\x13\x91\xa6\xa5\x52\xc4\xcb\xad\xd7\x02\x14\x92\xe5\xd5"
      "\x6a\x65\x3a\xbf\x3e\xf8\xed\x64\xe1\xa5\x66\x79\xa6\xb5\x65\x72\xe2\x98"
      "\x61\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\xa0\x2d\xcb\x92\xc8\x00\x00\x00\x80\xa1\x16\x91\xfe\x39\x69\x3d"
      "\xcd\x3f\x62\x6a\xf2\xed\x89\x83\xbf\x0e\x1c\x7a\xeb\xd7\x4f\xee\xfc\xe8"
      "\xde\x42\xa3\xb1\x35\x13\x31\x96\xfc\x7d\xb2\x39\x6b\x2c\x22\x1a\x3f\xce"
      "\xe7\xbf\x9b\x79\x25\x00\x00\x00\x00\xbc\x00\xda\xd7\xe9\xf9\x74\x66\xd0"
      "\xb5\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\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x60\xd8\x3c\x79\x7c\x7f\x71\x3f\x9d\x67\xdc\xbf\x7e\x21\x22\x8a"
      "\x9d\xe2\x8f\xc6\x78\x6b\x3a\x1e\x85\x88\xb8\xfc\x8f\x24\x46\x9f\xd9\x2e"
      "\x89\x88\x91\x3e\xc4\xdf\x7b\x10\x11\xaf\x76\x8a\x9f\xc4\xd3\x2c\xcb\x8a"
      "\x79\x2d\x3a\xc5\xbf\x74\xc6\xf1\x8b\xad\x43\xd3\x39\x7e\x1a\x11\x57\xfa"
      "\x10\x1f\x2e\xb2\x87\xcd\xfe\xe7\x56\xa7\xcf\x5f\x1a\x6f\xb6\xa6\x9d\x3f"
      "\x7f\xa3\x79\x3a\xad\xee\xfd\x5f\xfa\xdf\xfe\x6f\xa4\x4b\xff\xf3\x72\x8f"
      "\x31\x5e\x7b\xf4\x8b\x72\xd7\xf8\x0f\x22\x5e\x1b\xed\xdc\xff\xec\xc7\x4f"
      "\xda\xf1\x93\x38\x14\xff\xad\x1e\xe3\x7f\xe3\xeb\xbb\xbb\xdd\x96\x65\x3f"
      "\x8d\x98\xea\xf8\xfd\x93\x1c\x88\x55\x6e\xac\x6f\x96\xeb\x3b\xbb\xd7\x56"
      "\xd7\x17\x56\x2a\x2b\x95\x8d\xd9\xd9\x99\xf7\xe7\xae\xcf\xbd\x37\x37\x5d"
      "\x5e\x5e\xad\x56\xf2\xbf\x1d\x63\x7c\xff\x13\xbf\x7c\x7a\x5c\xfb\x2f\x77"
      "\x89\x5f\x3c\xd8\xfe\x23\xc7\xff\xed\x1e\xdb\xff\xef\x47\xf7\x1e\x7f\xa4"
      "\x9d\x2d\x74\x8a\x7f\xf5\xad\xce\xdf\xbf\xaf\x76\x89\x9f\xe6\xdf\x7d\x9f"
      "\xca\xf3\xcd\xe5\x53\xfb\xf9\xbd\x76\xfe\x59\xaf\xff\xfc\x37\xaf\x1f\xd7"
      "\xfe\xa5\x2e\xed\x1f\x3f\xa1\xfd\x57\x7b\x6c\xff\x3b\x5f\xfd\xee\x1f\x7a"
      "\x5c\x15\x00\x38\x07\xf5\x9d\xdd\xb5\x85\x6a\xb5\xb2\x75\x4c\x66\xbc\x87"
      "\x75\xce\x39\x73\xf3\xc5\xa8\x86\x4c\xbf\x32\xd9\x77\xda\xff\x8f\xa7\xdb"
      "\xcf\x29\x37\x3f\x92\xc9\x4e\xb3\xf9\x68\xf4\xa1\x1a\x63\xcf\xf1\x39\xed"
      "\x6f\x66\x90\xbd\x12\x00\x00\x70\x16\xfe\x77\xd2\x3f\xe8\x9a\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xc5\xf5\x7f\x3e\x21"
      "\x6c\x3c\x22\x7a\x5e\xf9\x70\xcc\xbd\xc1\x34\x15\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\x58"
      "\xff\x09\x00\x00\xff\xff\x13\xbe\xd6\x1a",
      1270);
  syz_mount_image(/*fs=*/0x20000100, /*dir=*/0x20000200,
                  /*flags=MS_LAZYTIME*/ 0x2000000, /*opts=*/0x20000280,
                  /*chdir=*/1, /*size=*/0x4f6, /*img=*/0x200007c0);
  memcpy((void*)0x20000080, "ext4\000", 5);
  memcpy((void*)0x20000500, "./file1\000", 8);
  memcpy((void*)0x20000180, "errors=remount-ro", 17);
  *(uint8_t*)0x20000191 = 0x2c;
  memcpy((void*)0x20000192, "sysvgroups", 10);
  *(uint8_t*)0x2000019c = 0x2c;
  memcpy((void*)0x2000019d, "dioread_lock", 12);
  *(uint8_t*)0x200001a9 = 0x2c;
  memcpy((void*)0x200001aa, "init_itable", 11);
  *(uint8_t*)0x200001b5 = 0x2c;
  memcpy((void*)0x200001b6, "noauto_da_alloc", 15);
  *(uint8_t*)0x200001c5 = 0x2c;
  memcpy((void*)0x200001c6, "resgid", 6);
  *(uint8_t*)0x200001cc = 0x3d;
  sprintf((char*)0x200001cd, "0x%016llx", (long long)0);
  *(uint8_t*)0x200001df = 0x2c;
  memcpy((void*)0x200001e0, "barrier", 7);
  *(uint8_t*)0x200001e7 = 0x2c;
  memcpy((void*)0x200001e8, "init_itable", 11);
  *(uint8_t*)0x200001f3 = 0x3d;
  sprintf((char*)0x200001f4, "0x%016llx", (long long)0x100);
  *(uint8_t*)0x20000206 = 0x2c;
  memcpy((void*)0x20000207, "usrquota", 8);
  *(uint8_t*)0x2000020f = 0x2c;
  *(uint8_t*)0x20000210 = 0;
  memcpy(
      (void*)0x20000a00,
      "\x78\x9c\xec\xdd\xdf\x6b\x5b\xd7\x1d\x00\xf0\xef\xbd\xb6\xb2\xfc\x70\x66"
      "\x67\xdb\x43\x16\x58\x16\x96\x0c\x27\x6c\x91\xec\x78\x49\xcc\x1e\xb2\x0d"
      "\xc6\xf2\x14\xd8\x96\xbd\x67\x9e\x2d\x1b\x63\xd9\x32\x96\x9c\xc4\x26\x0c"
      "\x87\xfd\x01\x83\x31\xb6\x42\x9f\xfa\xd4\x97\x42\xff\x80\x42\xc9\x9f\x50"
      "\x0a\x81\xf6\xbd\xb4\xa5\xa5\xb4\x49\xfb\xd0\x87\xb6\x2a\x92\xae\x52\xc7"
      "\x95\x62\x87\xc8\xbe\x60\x7f\x3e\x70\x72\xcf\xb9\x57\xd2\xf7\x7b\x08\x3a"
      "\xba\xe7\xde\x63\x29\x80\x03\xeb\x4c\x44\x9c\x8b\x88\x81\x88\xb8\x10\x11"
      "\xc3\xd9\xfe\x34\x2b\xd7\x9b\x8d\x8d\xf6\xe3\x1e\x3f\xba\x37\xdd\x2c\x49"
      "\x34\x1a\x37\x3f\x4d\x22\xc9\xf6\x75\x5e\x2b\xc9\xb6\xc7\xda\x4f\x69\xf9"
      "\xeb\xf5\x88\x7f\x24\xdf\x8f\x5b\x5b\x5b\x5f\x98\xaa\x54\xca\x2b\x59\xbb"
      "\x54\x5f\x5c\x2e\xd5\xd6\xd6\x2f\xce\x2f\x4e\xcd\x95\xe7\xca\x4b\x13\x13"
      "\xe3\x57\x26\xaf\x4e\x5e\x9e\x1c\xeb\x4b\x3f\x47\x22\xe2\xda\x1f\x3f\xfc"
      "\xdf\xbf\x5f\xfd\xd3\xb5\x37\x7f\x7d\xe7\xbd\x5b\x1f\x9f\xff\x67\x33\xad"
      "\xa1\xec\xf8\xe6\x7e\xf4\x53\xbb\xeb\x85\x38\xbc\x69\xdf\x60\x44\xac\xec"
      "\x46\xb0\x1c\x0c\x64\xdb\x42\xce\x79\x00\x00\xb0\x33\xcd\x73\xfc\x1f\x45"
      "\xc4\x2f\x5a\xe7\xff\xc3\x31\xd0\x3a\x3b\x05\x00\x00\x00\xf6\x93\xc6\xef"
      "\x86\xe2\xab\x24\xa2\x01\x00\x00\x00\xec\x5b\x69\x6b\x0d\x6c\x92\x16\xb3"
      "\xb5\x00\x43\x91\xa6\xc5\x62\x7b\x0d\xef\x4f\xe2\x68\x5a\xa9\xd6\xea\xbf"
      "\x9a\xad\xae\x2e\xcd\xb4\xd7\xca\x8e\x44\x21\x9d\x9d\xaf\x94\xc7\xb2\xb5"
      "\xc2\x23\x51\x48\x9a\xed\xf1\x6c\x8d\x6d\xa7\x7d\x69\x4b\x7b\x22\x22\x4e"
      "\x44\xc4\x7f\x87\x8f\xb4\xda\xc5\xe9\x6a\x65\x26\xef\x8b\x1f\x00\x00\x00"
      "\x70\x40\x1c\xdb\x32\xff\xff\x62\xb8\x3d\xff\x07\x00\x00\x00\xf6\x99\x91"
      "\xbc\x13\x00\x00\x00\x00\x76\x9d\xf9\x3f\x00\x00\x00\xec\x7f\xe6\xff\x00"
      "\x00\x00\xb0\xaf\xfd\xf9\xc6\x8d\x66\x69\x74\x7e\xff\x7a\xe6\xf6\xda\xea"
      "\x42\xf5\xf6\xc5\x99\x72\x6d\xa1\xb8\xb8\x3a\x5d\x9c\xae\xae\x2c\x17\xe7"
      "\xaa\xd5\xb9\xd6\x77\xf6\x2d\x6e\xf7\x7a\x95\x6a\x75\xf9\x37\xb1\xb4\x7a"
      "\xb7\x54\x2f\xd7\xea\xa5\xda\xda\xfa\xad\xc5\xea\xea\x52\xfd\xd6\xfc\x53"
      "\x3f\x81\x0d\x00\x00\x00\xec\xa1\x13\x3f\x7f\xf0\x6e\x12\x11\x1b\xbf\x3d"
      "\xd2\x2a\x4d\x87\xf2\x4e\x0a\xd8\x13\xc9\xf3\x3c\xf8\x83\xdd\xcb\x03\xd8"
      "\x7b\x03\x79\x27\x00\xe4\x66\x30\xef\x04\x80\xdc\x14\xf2\x4e\x00\xc8\xdd"
      "\x76\xd7\x01\x7a\x2e\xde\x79\xab\xff\xb9\x00\x00\x00\xbb\x63\xf4\xa7\xbd"
      "\xef\xff\xbb\x36\x00\xfb\x5b\x9a\x77\x02\x00\xc0\x9e\x73\xff\x1f\x0e\xae"
      "\x82\x15\x80\x70\xe0\xfd\x70\x9b\xe3\x2f\x7e\xff\xbf\xd1\x78\xae\x84\x00"
      "\x00\x80\xbe\x1b\x6a\x95\x24\x2d\x66\xf7\x02\x87\x22\x4d\x8b\xc5\x88\xe3"
      "\xad\x9f\x05\x28\x24\xb3\xf3\x95\xf2\x58\x36\x3f\x78\x67\xb8\xf0\x83\x66"
      "\x7b\xbc\xf5\xcc\xe4\xf9\xfe\x76\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0e\xb0\x46\x23\x89\x06\x00\x00"
      "\x00\xb0\xaf\x45\xa4\x1f\x25\xad\x6f\xf3\x8f\x18\x1d\x3e\x37\xb4\xf5\xfa"
      "\xc0\xa1\xe4\xcb\xe1\xd6\x36\x22\xee\xbc\x7c\xf3\xff\x77\xa7\xea\xf5\x95"
      "\xf1\xe6\xfe\xcf\x9e\xec\xaf\xbf\x94\xed\xbf\x94\xc7\x15\x0c\x00\x00\x00"
      "\x60\xab\xce\x3c\xbd\x33\x8f\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\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\x7e\x7a\xfc\xe8\xde\x74\xa7\xec\x65"
      "\xdc\x4f\xfe\x10\x11\x23\xdd\xe2\x0f\xc6\xe1\xd6\xf6\x70\x14\x22\xe2\xe8"
      "\xe7\x49\x0c\x6e\x7a\x5e\x12\x11\x03\x7d\x88\xbf\x71\x3f\x22\x4e\x76\x8b"
      "\x9f\x34\xd3\x8a\x91\x2c\x8b\x6e\xf1\x8f\xe4\x18\x3f\x8d\x88\x63\x7d\x88"
      "\x0f\x07\xd9\x83\xe6\xf8\xf3\xfb\x6e\xef\xbf\x34\xce\xb4\xb6\xdd\xdf\x7f"
      "\x83\x59\x79\x51\xbd\xc7\xbf\xf4\xc9\xf8\x37\xd0\x63\xfc\x39\xbe\xc3\x18"
      "\xa7\x1e\xbe\x5e\xea\x19\xff\x7e\xc4\xa9\xc1\xee\xe3\x4f\x27\x7e\xd2\x23"
      "\xfe\xd9\x1d\xc6\xff\xfb\xdf\xd6\xd7\x7b\x1d\x6b\xbc\x12\x31\xda\xf5\xf3"
      "\x27\x79\x2a\x56\xa9\xbe\xb8\x5c\xaa\xad\xad\x5f\x9c\x5f\x9c\x9a\x2b\xcf"
      "\x95\x97\x26\x26\xc6\xaf\x4c\x5e\x9d\xbc\x3c\x39\x56\x9a\x9d\xaf\x94\xb3"
      "\x7f\xbb\xc6\xf8\xcf\xcf\xde\xf8\xe6\x59\xfd\x3f\xda\x23\xfe\xc8\x36\xfd"
      "\x3f\xb7\xc3\xfe\x7f\xfd\xf0\xee\xa3\x1f\xb7\xab\x85\x6e\xf1\xcf\x9f\xed"
      "\xfe\xf9\x7b\xb2\x47\xfc\x34\xfb\xec\xfb\x65\x56\x6f\x1e\x1f\xed\xd4\x37"
      "\xda\xf5\xcd\x4e\xbf\xf6\xf6\xe9\x67\xf5\x7f\xa6\x47\xff\xb7\xfb\xff\x3f"
      "\xbf\xc3\xfe\x5f\xf8\xcb\xbf\xde\xdf\xe1\x43\x01\x80\x3d\x50\x5b\x5b\x5f"
      "\x98\xaa\x54\xca\x2b\x2a\x2a\x2a\x2a\x4f\x2a\x79\x8f\x4c\x00\x00\x40\xbf"
      "\x7d\x77\xd2\x9f\x77\x26\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x70\x70\xed\xc5\xd7\x89\x6d\x8d\xb9\x91\x4f\x57\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\xe9\xdb\x00\x00\x00\xff\xff\x82\x8f\xd4\xc9",
      1202);
  syz_mount_image(/*fs=*/0x20000080, /*dir=*/0x20000500,
                  /*flags=MS_REC|MS_RDONLY|MS_NOSUID|MS_NOEXEC|0x500*/ 0x450b,
                  /*opts=*/0x20000180, /*chdir=*/0x12, /*size=*/0x4b4,
                  /*img=*/0x20000a00);
}
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;
}