// https://syzkaller.appspot.com/bug?id=b3d4ed3e41b3085ce97f4504f4183e3f99115fb2
// 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

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;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  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 (;;) {
      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;
    }
    remove_dir(cwdbuf);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x200002c0, "ext4\000", 5);
  memcpy((void*)0x20000080, "./file1\000", 8);
  *(uint8_t*)0x20000240 = 0;
  memcpy(
      (void*)0x20000980,
      "\x78\x9c\xec\xdd\xcf\x6f\x23\x57\x1d\x00\xf0\xef\x4c\xe2\xdd\xec\x6e\x8a"
      "\x5d\x40\x08\x2a\xd1\x56\xb4\x68\xb7\x82\xb5\x37\x0d\x6d\x23\x84\xa0\x5c"
      "\xe0\x54\x09\x28\xf7\x10\x12\x27\x8a\x62\xc7\x51\xec\x94\x4d\x54\xd1\x54"
      "\xfc\x07\x08\x09\x24\x4e\x9c\xb8\x20\xf1\x07\x20\x55\x3d\xf0\x07\xa0\x4a"
      "\x95\xe0\x82\x38\x20\x40\x20\x04\x5b\x38\x20\x01\x9d\xca\xf6\xb8\xbb\x71"
      "\xec\x24\xbb\x9b\xd8\xc9\xfa\xf3\x91\x26\x7e\x6f\x7e\x7d\xdf\x1b\xcb\xcf"
      "\xf3\xc6\x2f\x33\x01\x4c\xac\xa7\x23\xe2\xe5\x88\x98\x8a\x88\xe7\x22\xa2"
      "\x98\xcf\x4f\xf3\x69\xb1\x9d\xd9\xef\xae\xf7\xde\x9d\xd7\x97\xdb\x53\x12"
      "\x59\xf6\xea\x3f\x92\x48\xf2\x79\xbd\x7d\xb5\xf3\xd3\x11\x71\xad\xbb\x49"
      "\xcc\x44\xc4\xb7\xbe\x1e\xf1\xdd\xe4\x70\xdc\xe6\xee\xde\xc6\x52\xad\x56"
      "\xdd\xce\xf3\x95\x56\x7d\xab\xd2\xdc\xdd\xbb\xb9\x5e\x5f\x5a\xab\xae\x55"
      "\x37\xe7\xe7\xe7\x5e\x5c\x78\x69\xe1\x85\x99\x5b\x59\xee\xa1\xea\x59\xea"
      "\x25\x7e\xfe\xb5\x2f\xbf\xf5\xf9\xef\xfd\x71\xf1\x6f\x37\xbe\xdf\x2e\xd6"
      "\x97\x3e\x11\x85\xe8\xab\xc7\x69\xea\x56\xbd\xd0\x39\x16\x3d\xed\x63\xb4"
      "\x7d\x16\xc1\xc6\x64\xba\x53\x43\x00\x00\x2e\x82\xf6\x39\xfe\x47\x23\xe2"
      "\x33\x9d\xf3\xff\x62\x4c\x75\xce\xe6\xfa\x4c\x8d\xa3\x64\x00\x00\x00\xc0"
      "\x69\xc9\xbe\x32\x1b\xff\x4b\x22\x32\x00\x00\x00\xe0\x91\x95\x46\xc4\x6c"
      "\x24\x69\x39\x1f\x0b\x30\x1b\x69\x7a\x29\xbf\x36\xf0\xf1\xb8\x9a\xd6\x1a"
      "\xcd\xd6\xe7\x56\x1b\x3b\x9b\x2b\xed\x65\x11\xa5\x28\xa4\xab\xeb\xb5\xea"
      "\xad\x7c\xac\x70\x29\x0a\x49\x3b\x3f\x97\x8f\xb1\xed\xe5\x9f\xef\xcb\xcf"
      "\x47\xc4\xe3\x11\xf1\xa3\xe2\x95\x4e\xbe\xbc\xdc\xa8\xad\x8c\xf9\xda\x07"
      "\x00\x00\x00\x4c\x8a\x6b\x7d\xfd\xff\x7f\x17\xd3\x4e\xfa\x78\x03\xfe\x4f"
      "\x00\x00\x00\x00\x38\xbf\x4a\x43\x33\x00\x00\x00\xc0\xa3\x42\x97\x1f\x00"
      "\x00\x00\x1e\x7d\xfd\xfd\xff\xb7\xc6\x54\x0e\x00\x00\x00\xe0\x4c\x7c\xe3"
      "\x95\x57\xda\x53\xd6\x7b\xfe\xf5\xca\x6b\xbb\x3b\x1b\x8d\xd7\x6e\xae\x54"
      "\x9b\x1b\xe5\xfa\xce\x72\x79\xb9\xb1\xbd\x55\x5e\x6b\x34\xd6\x3a\xf7\xec"
      "\xab\x1f\xb7\xbf\x5a\xa3\xb1\xf5\x85\xd8\xdc\xb9\x5d\x69\x55\x9b\xad\x4a"
      "\x73\x77\x6f\xb1\xde\xd8\xd9\x6c\x2d\xae\x1f\x78\x04\x36\x00\x00\x00\x30"
      "\x42\x8f\x3f\xf5\xf6\xef\x92\x88\xd8\xff\xe2\x95\xce\x14\xf9\x7d\x00\x01"
      "\x0e\xf8\xf3\xb8\x0b\x00\x9c\xa6\xa9\x71\x17\x00\x18\x1b\x77\xf1\x86\xc9"
      "\x55\xb8\x9f\x95\x2f\x9d\x5d\x39\x80\xf1\x49\x8e\x59\x6e\xf0\x0e\x00\x00"
      "\x5c\x7c\xd7\x3f\x75\xf8\xf7\xff\x5e\x37\xff\xbe\xae\x0d\x00\x17\x8e\xb1"
      "\x3e\x00\x30\x79\x1e\xea\xf7\x7f\x1d\x04\xb8\xd0\x0a\x46\x00\xc2\x44\x4b"
      "\x23\xe2\x23\xdd\xe4\xe5\x61\xeb\x0c\xfd\xfd\xff\x37\x27\x8d\x92\x65\x11"
      "\xef\x14\xef\x9d\xe3\xf4\x01\x00\x00\x46\x6b\xb6\x33\x25\x69\x39\xef\x07"
      "\xcc\x46\x9a\x96\xcb\x11\x8f\x45\xa4\xa5\x28\x24\xab\xeb\xb5\xea\xad\xbc"
      "\x7f\xf0\xdb\x62\xe1\x72\x3b\x3f\xd7\xd9\x32\x39\x76\xcc\x30\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd0\x95"
      "\x65\x49\x64\x0f\xe8\xf2\x03\x6f\x09\x00\x00\x00\x8c\x52\x44\xfa\xd7\xa4"
      "\x73\x37\xff\x88\xeb\xc5\x67\x67\xfb\xaf\x0f\x5c\x4a\xfe\x53\x8c\xbf\xe4"
      "\x99\x9f\xbe\xfa\xe3\xdb\x4b\xad\xd6\xf6\x5c\x7b\xfe\x3f\x3b\xcf\xf2\xba"
      "\x14\x11\xad\x9f\xe4\xf3\x9f\x1f\xfa\xf8\x30\x00\x00\x00\xe0\xb4\x25\xfb"
      "\x43\x17\x75\xfb\xe9\xf9\xeb\xdc\x48\x4b\x05\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\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\x04\x78\xef\xce\xeb\xcb"
      "\xbd\x69\x94\x71\xff\xfe\xd5\x88\x28\x0d\x8a\x3f\x1d\x33\x9d\xd7\x99\x28"
      "\x44\xc4\xd5\x7f\x25\x31\x7d\xcf\x76\x49\x44\x4c\x9d\x42\xfc\xfd\x37\x23"
      "\xe2\x93\x83\xe2\x27\xf1\x7e\x96\x65\xa5\xbc\x14\x83\xe2\x5f\x39\xe3\xf8"
      "\xa5\xce\xa1\x19\x1c\x3f\x8d\x88\x6b\xa7\x10\x1f\x26\xd9\xdb\xed\xf6\xe7"
      "\xe5\x41\x9f\xbf\x34\x9e\xee\xbc\x0e\xfe\xfc\x4d\xe7\xd3\xc3\x1a\xde\xfe"
      "\xa5\x1f\xb6\x7f\x53\x43\xda\x9f\xc7\x0e\xed\xad\x3e\x30\xc6\x13\xef\xfe"
      "\xb2\x32\x34\xfe\x9b\x11\x4f\x4c\x0f\x6e\x7f\x7a\xf1\x93\x21\xf1\x9f\x39"
      "\xb4\xb7\xff\x66\x59\x76\x38\xc6\x77\xbe\xbd\xb7\x37\x2c\x7e\xf6\xb3\x88"
      "\xeb\x03\xbf\x7f\x92\x03\xb1\x2a\xad\xfa\x56\xa5\xb9\xbb\x77\x73\xbd\xbe"
      "\xb4\x56\x5d\xab\x6e\xce\xcf\xcf\xbd\xb8\xf0\xd2\xc2\x0b\x0b\xb7\x2a\xab"
      "\xeb\xb5\x6a\xfe\x77\x60\x8c\x1f\x7e\xfa\x57\xef\x1f\x55\xff\xab\x03\xe2"
      "\xff\xe1\xf7\xdd\xf6\xf7\xa8\xfa\x3f\x3b\x6c\xa7\x7d\xfe\xff\xee\xed\x3b"
      "\x1f\xeb\x26\x0b\x83\xe2\xdf\x78\x66\xe0\xf7\xef\x4c\x0c\x89\x9f\xe6\xdf"
      "\x7d\x9f\xcd\xd3\xed\xe5\xd7\x7b\xe9\xfd\x6e\xfa\x5e\x4f\xfe\xe2\x9d\x27"
      "\x8f\xaa\xff\xca\x90\xe3\x7f\xdc\xfb\x7f\xe3\x84\xf5\x7f\xee\x9b\x3f\xf8"
      "\xd3\x09\x57\x05\x00\x46\xa0\xb9\xbb\xb7\xb1\x54\xab\x55\xb7\x8f\x48\xcc"
      "\x9c\x60\x9d\x8b\x98\xf8\xf5\xcc\xb9\x28\xc6\x7d\x26\xb2\x37\xba\xef\xdc"
      "\x39\x29\x4f\xe1\x41\x37\x6f\x9f\xad\xde\x9d\xd3\xab\xd5\xb8\xab\x73\x30"
      "\x91\x8d\x26\xd6\x53\xb1\x31\x15\xe7\xa4\xca\x1f\x26\x8e\x69\x38\xb2\xae"
      "\x37\xce\xbc\x85\x02\x00\x00\x4e\xcb\xdd\x93\xfe\x71\x97\x04\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x26\xd7\x28\x6e\x27\xd6"
      "\x1f\x73\x7f\x3c\x55\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\xd2\x07\x01\x00\x00\xff\xff"
      "\x95\x16\xe3\xec",
      1318);
  syz_mount_image(
      /*fs=*/0x200002c0, /*dir=*/0x20000080,
      /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_STRICTATIME|MS_RDONLY*/ 0x3000011,
      /*opts=*/0x20000240, /*chdir=*/1, /*size=*/0x526, /*img=*/0x20000980);
  memcpy((void*)0x20000100, "ext4\000", 5);
  memcpy((void*)0x20000080, "./file1\000", 8);
  *(uint8_t*)0x20000000 = 0;
  memcpy(
      (void*)0x20001600,
      "\x78\x9c\xec\xdd\x41\x6f\x23\x57\x1d\x00\xf0\xff\x8c\xe3\x6d\x76\x37\xc5"
      "\x2e\x20\x54\x2a\x51\x2a\x5a\x94\xad\x60\xed\xa4\xa1\x6d\x84\x10\x94\x0b"
      "\x9c\x2a\x01\xe5\x1e\x42\xe2\x44\x51\xec\x38\x8a\x9d\xb2\x89\x2a\x48\xc5"
      "\x37\x40\x48\x20\x71\xe2\xc4\x05\x89\x0f\x80\x54\xf5\xc0\x07\x40\x95\x2a"
      "\xc1\x05\x71\x40\x80\x40\x08\xb6\x70\x40\x02\x76\x90\xed\x31\x9b\x75\xec"
      "\x24\x74\x93\x38\x1b\xff\x7e\xd2\x5b\xbf\xf7\x66\x3c\xff\xf7\x26\xf2\xf3"
      "\xcc\xf8\xed\x4c\x00\x13\xeb\x99\x88\x78\x25\x22\x0a\x11\xf1\x7c\x44\x94"
      "\xf2\xfa\x34\x4f\x4b\x9d\xc2\x41\x6f\xbd\xf7\xee\xbe\xb1\xd2\x49\x49\x64"
      "\xd9\x6b\x7f\x4d\x22\xc9\xeb\xfa\xdb\xea\x94\xa7\x22\xe2\x66\xef\x2d\x31"
      "\x1d\x11\x5f\xfb\x72\xc4\x37\x93\xa3\x71\x5b\x7b\xfb\x9b\xcb\xf5\x7a\x6d"
      "\x27\x2f\x57\xdb\x8d\xed\x6a\x6b\x6f\xff\xf6\x46\x63\x79\xbd\xb6\x5e\xdb"
      "\x5a\x58\x98\x7f\x69\xf1\xe5\xc5\x17\x17\xe7\xb2\xdc\x43\xf5\xb3\xdc\xcf"
      "\xfc\xe4\x4b\x9f\x7f\xeb\xd3\xdf\xfa\xdd\xd2\x9f\x6f\x7d\xbb\xd3\xac\xcf"
      "\x7d\x24\x8a\x31\xd0\x8f\xb3\xd4\xeb\x7a\xb1\xbb\x2f\xfa\x3a\xfb\x68\xe7"
      "\x3c\x82\x8d\x41\x21\xef\x4f\x71\xdc\x0d\x01\x00\xe0\x54\x3a\xc7\xf8\x1f"
      "\x8c\x88\x4f\x74\x8f\xff\x4b\x51\xe8\x1e\xcd\x0d\x28\x8c\xa3\x65\x00\x00"
      "\x00\xc0\x59\xc9\xbe\x30\x13\xff\x4e\x22\x32\x00\x00\x00\xe0\xca\x4a\x23"
      "\x62\x26\x92\xb4\x92\xcf\x05\x98\x89\x34\xbd\x96\x5f\x1b\xf8\x70\xdc\x48"
      "\xeb\xcd\x56\xfb\x53\x6b\xcd\xdd\xad\xd5\xce\xb2\x88\x72\x14\xd3\xb5\x8d"
      "\x7a\x6d\x2e\x9f\x2b\x5c\x8e\x62\xd2\x29\xcf\xe7\x73\x6c\xfb\xe5\x17\x06"
      "\xca\x0b\x11\xf1\x44\x44\x7c\xbf\x74\xbd\x5b\xae\xac\x34\xeb\xab\x63\xbe"
      "\xf6\x01\x00\x00\x00\x93\xe2\xe6\xc0\xf9\xff\x3f\x4a\x69\x37\x7f\xb2\x21"
      "\xff\x4f\x00\x00\x00\x00\xb8\xbc\xca\x23\x0b\x00\x00\x00\xc0\x55\xe1\x94"
      "\x1f\x00\x00\x00\xae\xbe\xc1\xf3\xff\xb7\xc6\xd4\x0e\x00\x00\x00\xe0\x5c"
      "\x7c\xe5\xd5\x57\x3b\x29\xeb\x3f\xff\x7a\xf5\xf5\xbd\xdd\xcd\xe6\xeb\xb7"
      "\x57\x6b\xad\xcd\x4a\x63\x77\xa5\xb2\xd2\xdc\xd9\xae\xac\x37\x9b\xeb\xdd"
      "\x7b\xf6\x35\x4e\xda\x5e\xbd\xd9\xdc\xfe\x4c\x6c\xed\xde\xa9\xb6\x6b\xad"
      "\x76\xb5\xb5\xb7\xbf\xd4\x68\xee\x6e\xb5\x97\x36\x1e\x78\x04\x36\x00\x00"
      "\x00\x70\x81\x9e\xf8\xf8\xdb\xbf\x4e\x22\xe2\xe0\xb3\xd7\xbb\x29\xf2\xfb"
      "\x00\x02\x3c\xe0\x0f\xe3\x6e\x00\x70\x96\x0a\xe3\x6e\x00\x30\x36\xee\xe2"
      "\x0d\x93\xab\x38\xee\x06\x00\x63\x97\x9c\xb0\xdc\xe4\x1d\x00\x00\x78\xf4"
      "\xcd\x7e\xf4\xe8\xef\xff\xfd\xe7\xff\xbb\x36\x00\x57\x9b\xb9\x3e\x00\x30"
      "\x79\xfc\xfe\x0f\x93\xab\x68\x06\x20\x4c\xb4\x34\x22\x3e\xd0\xcb\x3e\x36"
      "\x6a\x9d\x91\xbf\xff\xff\xf2\xb4\x51\xb2\x2c\xe2\x9d\xd2\xe1\x1a\xd7\x17"
      "\x01\x00\xe0\x62\xcd\x74\x53\x92\x56\xf2\xf3\x80\x99\x48\xd3\x4a\x25\xe2"
      "\xf1\x88\xb4\x1c\xc5\x64\x6d\xa3\x5e\x9b\xcb\xcf\x0f\x7e\x55\x2a\x3e\xd6"
      "\x29\xcf\x77\xdf\x99\x9c\x38\x67\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe8\xc9\xb2\x24\x32\x00\x00\x00"
      "\xe0\x4a\x8b\x48\xff\x94\x74\xef\xe6\x1f\x31\x5b\x7a\x6e\x66\xf0\xfa\xc0"
      "\xb5\xe4\x9f\xa5\xf8\x63\x5e\xf8\xd1\x6b\x3f\xb8\xb3\xdc\x6e\xef\xcc\x77"
      "\xea\xff\xd6\x7d\x96\xd7\xb5\x88\x68\xff\x30\xaf\x7f\x61\xe4\xe3\xc3\x00"
      "\x00\x00\x80\xb3\x96\x1c\x8c\x5c\xd4\x3b\x4f\xcf\x5f\xe7\x2f\xb4\x55\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x4c\x80\xf7\xee\xbe\xb1\xd2\x4f\x17\x19\xf7\x2f\x5f\x8c\x88\xf2\xb0\xf8"
      "\x53\x31\xdd\x7d\x9d\x8e\x62\x44\xdc\xf8\x7b\x12\x53\x87\xde\x97\x44\x44"
      "\xe1\x0c\xe2\x1f\xbc\x19\x11\x4f\x0e\x8b\x9f\xc4\xbd\x2c\xcb\xca\x79\x2b"
      "\x86\xc5\xbf\x7e\xce\xf1\xcb\xdd\x5d\x33\x3c\x7e\x1a\x11\x37\xcf\x20\x3e"
      "\x4c\xb2\xb7\x3b\xe3\xcf\x2b\xc3\x3e\x7f\x69\x3c\xd3\x7d\x1d\xfe\xf9\x9b"
      "\xca\xd3\xc3\x1a\x3d\xfe\xa5\x79\xe4\x27\xbb\xe3\xdc\xb0\xf1\xe7\xf1\x23"
      "\x5b\x6b\x0c\x8d\xf1\xd4\xbb\x3f\xab\x8e\x8c\xff\x66\xc4\x53\x53\xc3\xc7"
      "\x9f\xfe\xf8\x9b\x8c\x88\xff\xec\x91\xad\xfd\x2b\xcb\xb2\xa3\x31\xbe\xf1"
      "\xf5\xfd\xfd\x51\xf1\xb3\x1f\x47\xcc\x0e\xfd\xfe\x49\x1e\x88\x55\x6d\x37"
      "\xb6\xab\xad\xbd\xfd\xdb\x1b\x8d\xe5\xf5\xda\x7a\x6d\x6b\x61\x61\xfe\xa5"
      "\xc5\x97\x17\x5f\x5c\x9c\xab\xae\x6d\xd4\x6b\xf9\xbf\x43\x63\x7c\xef\x63"
      "\x3f\xbf\x77\x5c\xff\x6f\x0c\x89\xff\xdb\xdf\xf4\xc6\xdf\xe3\xfa\xff\xdc"
      "\xa8\x8d\x0e\xf8\xcf\xbb\x77\xee\x7e\xa8\x97\x2d\x0e\x8b\x7f\xeb\xd9\xa1"
      "\xdf\xbf\xd3\x31\x22\x7e\x9a\x7f\xf7\x7d\x32\xcf\x77\x96\xcf\xf6\xf3\x07"
      "\xbd\xfc\x61\x4f\xff\xf4\x9d\xa7\x8f\xeb\xff\xea\x88\xfd\x7f\xd2\xdf\xff"
      "\xd6\x29\xfb\xff\xfc\x57\xbf\xfb\xfb\x53\xae\x0a\x00\x5c\x80\xd6\xde\xfe"
      "\xe6\x72\xbd\x5e\xdb\x39\x26\x33\x7d\x8a\x75\x1e\xc5\xcc\x2f\xa6\x2f\x45"
      "\x33\xfe\xcf\x4c\xf6\x9d\xde\x5f\xee\xb2\xb4\xe7\xfd\x66\x3a\x47\xab\xf7"
      "\x6b\xfa\xbd\xba\x04\x0d\x3b\x94\xc9\x2e\x2c\x56\x21\x2e\x49\x97\xff\x97"
      "\x19\xeb\xb0\x04\x00\x00\x9c\x83\xfb\x07\xfd\xe3\x6e\x09\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4c\xae\x73\xb8\x79\x58\x21"
      "\x06\x6a\x06\x63\x1e\x8c\xa7\xab\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc7\xfa\x6f\x00\x00"
      "\x00\xff\xff\x02\xe1\xdf\x09",
      1303);
  syz_mount_image(/*fs=*/0x20000100, /*dir=*/0x20000080,
                  /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_STRICTATIME*/ 0x3000010,
                  /*opts=*/0x20000000, /*chdir=*/1, /*size=*/0x517,
                  /*img=*/0x20001600);
}
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;
  use_temporary_dir();
  loop();
  return 0;
}