// https://syzkaller.appspot.com/bug?id=930445b3ba2c93b27f4ef8415dd2841243fb06ad
// 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;
  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*)0x2000000000c0, "hfs\000", 4);
  memcpy((void*)0x200000000000, "./file2\000", 8);
  memcpy(
      (void*)0x200000000700,
      "\x78\x9c\xec\xdd\xcf\x4e\x13\x5d\x18\xc7\xf1\xdf\x99\x16\x28\x2f\x84\x77"
      "\x04\x8c\x89\x71\x61\x50\x12\xe3\xc2\x08\x6e\x8c\x1b\x8d\xe9\x45\xb8\x32"
      "\x22\xad\x09\xb1\xc1\x04\x30\x0a\x1b\xd1\xb5\xf1\x02\xdc\x7b\x0b\x5e\x84"
      "\x2b\xe3\x0d\xb8\xd2\x95\x17\xd0\x95\x63\xce\x99\x53\x3a\x85\x99\x69\x81"
      "\xb6\x47\xf0\xfb\x49\x5a\xa6\xed\x39\x33\xcf\x99\x3f\x9d\xe7\x69\x42\x8e"
      "\x00\xfc\xb3\x1e\xd6\xbf\x7f\xba\xf3\xd3\x3e\x8c\x54\x51\x45\xd2\x3d\x29"
      "\x52\xa2\x9a\x54\x95\x74\x51\x97\x6a\x2f\x37\x77\x36\x76\x5a\xcd\x46\xd9"
      "\x8a\x2a\xb2\x3d\xec\xc3\x28\xed\x69\x8e\xb4\x31\x6a\xe6\x75\xb5\xfd\x5c"
      "\x0f\x2f\xb6\xaf\xaa\x9a\xad\x0d\x61\x7c\x28\x57\x4b\xa6\xa6\xfd\xe2\xe4"
      "\x71\xfb\x26\xa9\x37\xc3\x8f\x0a\xe3\xe6\xae\xfe\x9c\x8b\x36\x92\xa6\xfc"
      "\xd5\x59\xd1\x44\x98\xd8\x46\x61\x3f\x74\x00\x81\x99\xb6\xda\x7a\xad\xb9"
      "\xd0\x71\x00\x00\xc2\xf2\xf7\xff\x28\xcd\xe4\x35\xeb\x53\x81\x28\x92\x96"
      "\x7d\x8a\xee\xf2\x83\xf3\x92\x93\xb7\x43\x07\x10\x58\xe6\xfe\xef\x2a\xaf"
      "\xc4\xd8\xe3\xfb\xbf\xfb\xa8\x5b\xef\xb9\x6c\xd0\x7e\x1e\x75\xaa\xc4\x93"
      "\x6c\xcb\x15\x16\x91\x3f\x81\x0e\x02\xe8\x57\x55\xba\x58\xa2\xe9\x67\x1b"
      "\xad\xe6\xad\xf5\x17\xad\x46\xa4\x77\xba\xef\x65\x9a\x2d\xba\xe7\x46\x7a"
      "\xea\x76\xf8\x68\xdd\xc9\xfa\xf6\xe8\xaa\x97\x72\x6a\xd3\x12\x27\x1f\xfb"
      "\x8c\x1b\xc3\x84\x1d\xc3\x6a\x41\xfc\x0b\xc5\x5b\xfc\xef\xf8\x1b\x1c\x80"
      "\xf9\x62\xbe\x9a\xc7\x26\xd6\x47\x35\x0e\xf2\xbf\x6a\x62\xec\x61\x72\x47"
      "\x2a\x3e\x74\xa4\xd2\xf8\x6f\x17\xaf\xd1\x8d\x32\x4e\x5b\x15\x8c\xf2\x82"
      "\xdb\xc8\xe5\xde\x22\xb3\xcf\x7e\xad\xa5\x61\xfc\xf6\x65\x66\xf6\xa3\x49"
      "\xbf\xce\x6a\x36\xd4\xb8\x5f\x9c\xae\xd7\x7c\xcf\x4f\x0d\x9d\xd1\xad\xf4"
      "\xe9\xb5\x90\xdb\x6b\xb5\xb7\xe5\xda\xe1\x5e\x8b\x87\x7b\x1d\x9c\xcd\x3f"
      "\xec\xcb\x56\xf1\x46\x47\xc8\x7c\x30\x8f\xcc\x92\x7e\xe9\xb3\xea\x99\xfc"
      "\x3f\xb2\x7b\x72\x59\x83\x5c\x99\xb6\x8d\x6b\x19\x4d\x4c\xdb\x3d\x6e\xaf"
      "\xce\xc2\x96\x55\xd7\x32\xce\xbe\xb5\x7f\x25\xb7\x65\x34\xc0\x3b\x38\x35"
      "\xff\xd5\xf7\x5e\x4f\x75\x57\x73\xdb\xbb\x7b\x93\x6b\xad\x56\x73\x6b\x7b"
      "\x77\xef\x39\x0b\xe5\x0b\xfe\x9b\x28\x19\xf9\xb6\xaa\x23\x1e\x4e\xe7\x5c"
      "\xf8\x2b\xf6\xea\x69\x17\x14\x37\xb7\xda\x49\x92\x84\x8e\xe7\xc1\x55\x0d"
      "\x77\x85\xf6\x1e\x12\x6e\x38\x01\xbf\xa2\x30\x36\xdd\x83\x1e\x3a\x12\x04"
      "\x62\xb3\x2c\x93\xd6\x7f\x33\xb5\x6e\xbe\xef\xf2\x04\xfb\x14\x97\xe4\xe9"
      "\x49\xef\xcb\xa3\x65\x55\xa6\x02\x5a\xe9\xd6\x06\xca\xd6\x06\xf3\xee\xb9"
      "\xde\x4d\xe4\x6f\xbe\x4a\xff\x96\xd4\x06\x33\xc5\x15\xdc\xa0\x35\xd7\xb5"
      "\x1b\xd2\xf5\xcc\x9b\x7d\xaa\x91\xd8\xc7\x79\x4e\x98\xba\xbe\xe9\x09\xbf"
      "\xff\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9c\x35"
      "\xe3\xf8\x77\x82\xd0\x63\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\xe0\xac\x2b\x9a\xff\x57\x25\xf3\xff\xe6\x4e\xcb\x32"
      "\xc8\xfc\xbf\xeb\x9b\xc7\x9a\xff\xb7\x77\xf2\x1c\x00\xc3\xf6\x27\x00\x00"
      "\xff\xff\x01\x53\x8b\x27",
      690);
  syz_mount_image(/*fs=*/0x2000000000c0, /*dir=*/0x200000000000, /*flags=*/0,
                  /*opts=*/0x200000000040, /*chdir=*/0xb, /*size=*/0x2b2,
                  /*img=*/0x200000000700);
  memcpy((void*)0x200000000000, "./file2\000", 8);
  memcpy((void*)0x200000000040, "./file1\000", 8);
  syscall(__NR_rename, /*old=*/0x200000000000ul, /*new=*/0x200000000040ul);
  memcpy((void*)0x200000000040, "hfs\000", 4);
  memcpy((void*)0x200000000680,
         "./"
         "file1aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         247);
  *(uint32_t*)0x200000000080 = 0;
  memcpy(
      (void*)0x200000000240,
      "\x78\x9c\xec\xdd\x41\x6b\xd4\x4e\x18\xc7\xf1\xdf\x24\xdb\xed\xfe\xff\x2d"
      "\x35\xb6\x15\x41\x3c\x55\x05\x4f\xa5\xad\x17\x11\x44\x91\x7d\x07\x5e\x3c"
      "\x89\xda\xdd\x42\x71\xa9\xa0\x15\xd4\x8b\xd5\x73\xf1\xe0\xb1\x77\xdf\x82"
      "\x2f\xc2\x93\x78\x16\xbc\x79\xf2\x05\x14\x3c\x44\x66\x92\x34\xc9\x6e\x92"
      "\xdd\x76\xd9\xc6\xad\xdf\x0f\x74\xc9\x26\xf3\x24\xf3\x74\xb2\xc9\x3c\x0b"
      "\x4b\x04\xe0\x9f\x75\xaf\xfd\xe3\xd3\x8d\x9f\xf6\xcf\x48\xbe\x7c\xa9\x29"
      "\xc9\x93\xd4\x92\x1a\x92\x2e\xe8\x62\xeb\xe5\xce\xee\xf6\x6e\xaf\xdb\xa9"
      "\xda\x91\xef\x22\xec\x9f\x51\x14\x69\x06\xda\x6c\xee\x74\x8b\x42\x6d\x9c"
      "\x8b\x88\x05\xf6\x5d\x43\xf3\x99\x75\xcd\xe2\x20\x8c\xab\xf5\xfd\xd8\x21"
      "\x3e\xff\xfc\xb3\xc7\x84\x61\x18\x16\xac\xf7\xa4\xd9\xec\x68\x9f\x95\x91"
      "\xdf\xab\xbb\x03\x35\x33\x87\x3a\xd4\x6c\xdd\xbd\x00\x00\xd4\xcd\xcd\xfe"
      "\xa3\x89\xbf\x2f\xf9\xf3\xf1\xfc\xdd\xf3\xa4\x6b\xf1\x6d\xdf\x6e\x4f\xef"
      "\xff\xd3\x7b\x03\xfd\x1d\x46\xea\xee\x47\xad\xdc\xfd\xff\x95\x16\x92\xca"
      "\x2b\x34\x76\x7c\xcf\xb9\x4d\x69\xbd\xe7\x4a\x38\xbb\xdd\x4b\xaa\xc4\xca"
      "\x9d\x7a\xc5\xab\x9b\xf1\x36\x3f\xd7\x81\x61\x55\xa5\xeb\x8b\xf7\xdf\xd6"
      "\x76\xaf\xbb\xba\xf9\xac\xd7\xf1\xf4\x5e\x77\x62\x99\x66\xcb\xee\xb5\x93"
      "\x3f\x78\xb6\xb7\xef\x06\x77\xbd\x52\x50\x9b\x56\x18\x29\xf7\x23\x6f\x33"
      "\x27\xd6\x9c\xcb\x61\xc6\xe6\xb0\x51\xd2\xff\xa5\xf1\x8f\xe8\xcc\x94\x6e"
      "\xe9\x1b\x15\xf3\xc5\x7c\x35\x0f\x4d\xa0\x03\x75\xdc\xf8\x5b\x8d\xd0\xd8"
      "\x61\x72\x23\x15\xf4\x8d\x54\xd4\xff\x35\xe5\x8b\xf4\x0c\x97\x65\x10\xb5"
      "\x2a\xc9\xf2\xbc\x8b\xbe\x94\x2f\xe4\x2b\xb3\xf4\xd5\xd7\x8d\xac\x66\xbc"
      "\xcf\x46\x36\xf9\x20\xed\x67\x45\xd4\x62\x5f\x16\x51\x76\xeb\x43\xa2\x96"
      "\x0a\xa3\x36\x86\x44\x2d\xf7\x47\xa5\x67\x73\x79\xe4\xa4\x99\x0f\xe6\x81"
      "\x59\xd1\x2f\x7d\x56\xfb\x68\xfc\xed\x59\xe2\x47\x97\xfa\xe1\x9f\x4c\xdb"
      "\xc6\xb5\x8c\xcf\x8c\xca\x7c\x1a\xae\x65\xe0\xee\x27\xf1\xa7\x6e\xef\x72"
      "\x61\xcb\x92\xab\x07\x26\x62\x5f\x4f\x74\x53\x0b\x2f\x5e\xbf\x79\xfa\xb8"
      "\xd7\xeb\x3e\x67\x61\xb4\x85\xe4\x3a\xfb\xb7\xf4\xe7\x44\x0b\xc9\x49\x70"
      "\xea\x47\xf7\xdd\xc2\x47\x49\x75\xe4\xbe\xbf\x7a\x7b\xcb\xa6\xed\xd6\x28"
      "\x9e\xe2\x4e\xf4\xa0\x1a\xcc\xd4\xd7\x88\xe1\x8d\x71\x8e\x9e\xdc\x77\x4e"
      "\xde\xf9\x1a\xae\x49\x38\x75\xe9\xa0\x1f\x33\xb0\x78\x2a\x88\xe9\xe3\xb9"
      "\xaf\xff\x5d\xfd\x97\xa9\x57\xd6\xdc\x64\xcd\xbe\x04\x15\xf3\xf4\xa1\x45"
      "\x74\x66\x8f\xeb\x25\xb5\xc1\xa2\x7b\xfd\xbf\xbc\x82\xcb\x31\xee\xab\x87"
      "\xb9\xf2\x0a\x6e\xd4\x9a\xeb\xca\x75\xe9\x6a\xc9\x11\xdb\x07\x03\xbb\x0d"
      "\xe2\x7e\x4e\xb5\xbb\x4a\xbe\xc2\x31\x6d\x7d\xd3\xa3\xcc\xfc\x1f\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x53\x61\xbc\x9f\x37"
      "\x84\x61\xfa\xf3\x86\x96\xca\x1a\xd7\x9d\x23\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd3\x6e\xf0\xf9\xbf\xba\x55\xeb"
      "\xf3\x7f\xef\x2b\x7a\x97\x7f\xfe\x2f\x80\x09\xf8\x13\x00\x00\xff\xff\xff"
      "\x5e\x78\x2c",
      687);
  syz_mount_image(
      /*fs=*/0x200000000040, /*dir=*/0x200000000680,
      /*flags=MS_REC|MS_SYNCHRONOUS|MS_STRICTATIME|MS_SILENT|MS_NOSUID|0xc88*/
      0x100cc9a, /*opts=*/0x200000000080, /*chdir=*/1, /*size=*/0x2af,
      /*img=*/0x200000000240);
  memcpy((void*)0x200000000040, "./file2\000", 8);
  syscall(__NR_truncate, /*file=*/0x200000000040ul, /*len=*/0x8800000ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  for (procid = 0; procid < 4; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}