// https://syzkaller.appspot.com/bug?id=c6b8938beded9c6e0226431c3bdd26215c349a02
// 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*)0x20000080, "udf\000", 4);
  memcpy((void*)0x20000180, "./file1\000", 8);
  memcpy((void*)0x200015c0,
         "lastblock=00000000000000000000,umask=00000000000000000000002,dmode="
         "00000000000000000077777,novrs,shortad,shortad,undelete,iocharset="
         "cp437,shortad,umask=00000000000000000000006,dmode="
         "00000000000000000000011,fileset=00000000000000000011,uid=",
         239);
  memcpy((void*)0x200016af,
         "\x30\x30\x30\x30\x4e\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
         "\x46\x2c\xa0\x17\x90\x58\x93\x6d\x65\x61\x73\x75\x72\x65\x2c\x00",
         33);
  sprintf((char*)0x200016d0, "%020llu", (long long)0);
  memcpy(
      (void*)0x200016e4,
      "\xcd\xf7\xc0\xc4\xad\xa5\x80\xd5\xd3\x6b\xd9\x08\x06\xb6\x70\xb7\x3b\xb5"
      "\x11\x2f\x75\xca\x48\x36\x52\xcf\x9b\x8a\x22\x55\x5c\x3a\xf3\x4a\x84\xc5"
      "\x74\x7a\xc5\x1a\xa8\x90\xca\x20\x5a\x0f\x27\xd7\xdd\xe8\x1a\xd3\xa0\x1f"
      "\x21\x81\x0b\x6d\xe2\xd5\x6b\xe0\x54\x16\xc5\x4e\x1c\x6e\x84\x59\xe1\x64"
      "\x3b\x12\x93\x27\x58\x1f\x77\x16\xb3\x8d\xb3\xd3\xf3\xbb\xeb\x6d\x1b\x84"
      "\x6a\x2a\xad\x65\x4e\x17\x95\x85\x0a\x1f\x82\xac\x73\x83\x87\xd9\xc3\x00"
      "\x9d\x18\xeb\x2a\x78\x25\x8f\xcc\x4a\xc4\xeb\x6a\x12\xa5\x65\x0e\x10\xeb"
      "\xf0\x77\xd9\xab\x33\xf2\x4d\xe7\xcb\xff\xe0",
      137);
  sprintf((char*)0x2000176d, "0x%016llx", (long long)-1);
  memcpy(
      (void*)0x200001c0,
      "\x78\x9c\xec\xdd\x4f\x6c\x1c\xd7\x7d\x07\xf0\xdf\x1b\x2d\xc5\x95\xdc\x56"
      "\x4c\xec\x28\x4e\x1a\x17\x9b\xb6\x48\x65\xc5\x72\xf5\x2f\xa6\x62\x15\xee"
      "\xaa\xa6\xd9\x06\x90\x65\x22\x14\x73\x0b\xc0\x15\x49\xa9\x0b\x53\x24\x41"
      "\x52\x8d\x6c\xa4\x05\xd3\x4b\x0f\x3d\x04\x28\x8a\x1e\x72\x22\xd0\x1a\x05"
      "\x52\x34\x30\x9a\x22\xe8\x91\x69\x5d\x20\xb9\xf8\x50\xe4\xd4\x13\xd1\xc2"
      "\x46\x50\xf4\xc0\x16\x01\x72\x0a\x18\xcc\xec\x5b\x71\x49\x91\x36\x2d\x8a"
      "\x12\x65\x7d\x3e\x36\xf5\xdd\x9d\x7d\x6f\xe6\xbd\x79\xeb\x19\x59\xd0\x9b"
      "\x17\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\xc4\x1f\xbc"
      "\x72\xe9\xf4\x99\xf4\xb0\x5b\x01\x00\x3c\x48\x57\x46\xbf\x7a\xfa\xac\xfb"
      "\x3f\x00\x3c\x56\xae\xfa\xff\x7f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x38\xe8\x52\x14\xf1\x64\xa4\x98\xbb\xb2\x96\xc6\xab\xf7\x1d\xf5\xcb"
      "\xed\xbe\x5b\xb7\xc7\x86\x86\xb7\xaf\x76\x24\x55\x35\x0f\x55\xe5\xcb\x9f"
      "\xfa\x99\xb3\xe7\xce\x7f\xe9\x85\xc1\x0b\xdd\xbc\xdc\x9e\xf9\x80\xfa\xf7"
      "\xdb\x67\xe3\xb5\xd1\xab\x97\x1a\x2f\xcf\xde\x9c\x9b\x9f\x5a\x58\x98\x9a"
      "\x6c\x8c\xcd\xb4\x27\x66\x27\xa7\x76\xbd\x87\xbd\xd6\xdf\xea\x64\x75\x02"
      "\x1a\x37\x5f\xbf\x35\x79\xfd\xfa\x42\xe3\xec\xf3\xe7\x36\x7d\x7c\x7b\xe0"
      "\xfd\xfe\x27\x8e\x0f\x5c\x1c\x7c\xf6\xd4\x33\xdd\xb2\x63\x43\xc3\xc3\xa3"
      "\x1b\x45\xea\xbd\xe5\x6b\xf7\xdc\x90\x8e\x9d\x66\x78\x1c\x8e\x22\x4e\x45"
      "\x8a\xe7\xbe\xf7\xd3\xd4\x8a\x88\x22\xf6\x7e\x2e\xea\x0f\x76\xec\xb7\x3a"
      "\x52\x75\xe2\x64\xd5\x89\xb1\xa1\xe1\xaa\x23\xd3\xed\xd6\xcc\x62\xf9\xe1"
      "\x48\xf7\x44\x14\x11\x8d\x9e\x4a\xcd\xee\x39\xda\x7e\x2c\xa2\xd6\xf7\x40"
      "\xfb\xb0\xb3\x66\xc4\x52\xd9\xfc\xb2\xc1\x27\xcb\xee\x8d\xce\xb5\xe6\x5b"
      "\xd7\xa6\xa7\x1a\x23\xad\xf9\xc5\xf6\x62\x7b\x76\x66\x24\x75\x5a\x5b\xf6"
      "\xa7\x11\x45\x5c\x48\x11\xcb\x11\xb1\xda\x7f\xf7\xee\xfa\xa2\x88\x5a\xa4"
      "\xf8\xce\xb1\xb5\x74\x2d\x22\x0e\x75\xcf\xc3\x17\xab\x89\xc1\x3b\xb7\xa3"
      "\xd8\xc7\x3e\xee\x42\xd9\xce\x46\x5f\xc4\x72\xf1\x08\x8c\xd9\x01\xd6\x1f"
      "\x45\xbc\x1a\x29\x7e\xf6\xce\x89\x98\xc8\xd7\x99\xea\x5a\xf3\x85\x88\x57"
      "\xcb\xfc\x41\xc4\x5b\x65\xbe\x14\x91\xca\x2f\xc6\xf9\x88\xf7\xb6\xf9\x1e"
      "\xf1\x68\xaa\x45\x11\x7f\x59\x8e\xff\xc5\xb5\x34\x59\x5d\x0f\xba\xd7\x95"
      "\xcb\x5f\x6b\x7c\x65\xe6\xfa\x6c\x4f\xd9\xee\x75\xe5\x23\xde\x1f\xee\xba"
      "\x52\x3c\xa4\xfb\xc3\x91\x2d\xf9\x60\x1c\xf0\x6b\x53\x3d\x8a\x68\x55\x57"
      "\xfc\xb5\x74\xef\xbf\xd9\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\xe0\x7e\x3b\x12\x45\x7c\x26\x52\xbc\xf2\x1f\x7f\x52\xcd\x2b\x8e\x6a"
      "\x5e\xfa\xb1\x8b\x83\x7f\x38\xf0\xab\xbd\x73\xc6\x9f\xfe\x90\xfd\x94\x65"
      "\x9f\x8f\x88\xa5\x62\x77\x73\x72\x0f\xe7\x89\x81\x23\x69\x24\xa5\x87\x3c"
      "\x97\xf8\x71\x56\x8f\x22\xfe\x34\xcf\xff\xfb\xd6\xc3\x6e\x0c\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\x63\xad\x88\x9f\x44\x8a"
      "\x17\xdf\x3d\x91\x96\xa3\x77\x4d\xf1\xf6\xcc\x8d\xc6\xd5\xd6\xb5\xe9\xce"
      "\xaa\xb0\xdd\xb5\x7f\xbb\x6b\xa6\xaf\xaf\xaf\xaf\x37\x52\x27\x9b\x39\xc7"
      "\x73\x2e\xe5\x5c\xce\xb9\x92\x73\x35\x67\x14\xb9\x7e\xce\x66\xce\xf1\x9c"
      "\x4b\x39\x97\x73\xae\xe4\x5c\xcd\x19\x87\x72\xfd\x9c\xcd\x9c\xe3\x39\x97"
      "\x72\x2e\xe7\x5c\xc9\xb9\x9a\x33\x6a\xb9\x7e\xce\x66\xce\xf1\x9c\x4b\x39"
      "\x97\x73\xae\xe4\x5c\xcd\x19\x07\x64\xed\x5e\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\x8f\x93\x22\x8a\xf8\x45\xa4\xf8\xf6\x37\xd6\x52\xa4\x88"
      "\x68\x46\x8c\x47\x27\x57\xfa\x1f\x76\xeb\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
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      "\x00\x00\xe0\xc1\x49\x45\xfc\x7e\xa4\x68\xfd\x78\x2d\x35\x22\xe2\x76\x35"
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      "\xd4\x91\x7d\x6e\xff\x91\xfa\xcb\xb3\x73\x6f\xcc\xb7\x6f\xfc\xf1\xe2\xb6"
      "\x9f\x1f\xad\x5f\xba\xb6\xb0\x38\xdf\x9a\xd8\xfe\xe3\x38\x12\x45\x44\xb3"
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      "\xff\xdf\x3a\xc3\x7f\xd3\xfc\xff\xa5\xad\x3b\xda\xa7\xf9\xff\x9f\xe8\xd9"
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      "\x77\x9d\xb3\x5c\xee\xef\x22\xc5\xc9\x0b\x9f\xcb\xe5\xe2\x70\x59\xae\xdb"
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      "\xe7\x43\x3e\xb9\x51\xf6\xcc\xae\x4f\xec\x23\xa2\x1c\xff\x63\x91\xe2\xfb"
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      "\xe3\xff\x54\xcf\xb6\xa3\x9b\x9e\x57\xb0\xe7\xae\x93\xc7\xff\x54\xa4\x78"
      "\xe9\xc9\xb7\xe3\xb7\xf2\xb6\x0f\x7a\xfe\x47\xf7\xd9\x1b\x27\x72\xe1\x3b"
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      "\x96\x5e\xc8\xdb\x76\xf3\xf7\xff\x26\xb7\xee\x68\x9f\xfe\xfe\xd7\xa7\x7b"
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      "\xad\xc5\xd6\xb5\xe9\xa9\xc6\xe8\x5c\x6b\x62\xaa\xac\xfb\x54\xa4\x58\xfb"
      "\xdb\xcf\xe5\xba\x45\xb5\xbe\x7a\x77\xbd\xf9\xce\x1a\xef\x1b\x6b\xb1\xcf"
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      "\xb2\x9f\x88\x14\xff\xfd\x8f\x9b\xcb\x76\xd7\xb1\xfe\xd4\x46\xd9\xb3\x65"
      "\xd9\xbf\x89\x14\x5f\xff\x97\xed\xcb\x1e\xdf\x28\x7b\xae\x2c\xfb\xdd\x48"
      "\xf1\xa3\xaf\x37\xba\x65\x8f\x96\x65\xbb\xcf\x47\xfd\xf4\x46\xd9\xe7\x27"
      "\x66\x8b\x7d\x18\x15\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x1e\x37\x7d\xa9\x88\x3f\x8f\x14\xff\x7b\x73\xf9\xce\x5c\xfe\xbc"
      "\xfe\x7f\x5f\xcf\xdb\xca\x5b\xdf\xec\x59\xef\x7f\x8b\xdb\xd5\x3a\xff\x03"
      "\xd5\xfa\xff\x3b\xbd\xbe\x97\xf5\xff\xab\xe7\x0a\x2c\xed\x74\x54\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf8\x78\x4a"
      "\x51\xc4\x9b\x91\x62\xee\xca\x5a\x5a\xe9\x2f\xdf\x77\xd4\x2f\xb7\x67\x6e"
      "\xdd\x1e\x1b\x1a\xde\xbe\xda\x91\x54\xd5\x3c\x54\x95\x2f\x7f\xea\x67\xce"
      "\x9e\x3b\xff\xa5\x17\x06\x2f\x74\xf3\x83\xeb\xdf\x6f\x9f\x89\xd7\x46\xaf"
      "\x5e\x6a\xbc\x3c\x7b\x73\x6e\x7e\x6a\x61\x61\x6a\xb2\x31\x36\xd3\x9e\x98"
      "\x9d\x9c\xda\xf5\x1e\xf6\x5a\x7f\xab\x93\xd5\x09\x68\xdc\x7c\xfd\xd6\xe4"
      "\xf5\xeb\x0b\x8d\xb3\xcf\x9f\xdb\xf4\xf1\xed\x81\xf7\xfb\x9f\x38\x3e\x70"
      "\x71\xf0\xd9\x53\xcf\x74\xcb\x8e\x0d\x0d\x0f\x8f\xf6\x94\xa9\xf5\xdd\xf3"
      "\xd1\xef\x92\x76\xd8\x7e\x38\x8a\xf8\xeb\x48\xf1\xdc\xf7\x7e\x9a\x7e\xd8"
      "\x1f\x51\xc4\xde\xcf\xc5\x87\x7c\x77\xf6\xdb\x91\xaa\x13\x27\xab\x4e\x8c"
      "\x0d\x0d\x57\x1d\x99\x6e\xb7\x66\x16\xcb\x0f\x47\xba\x27\xa2\x88\x68\xf4"
      "\x54\x6a\x76\xcf\xd1\x03\x18\x8b\x3d\x69\x46\x2c\x95\xcd\x2f\x1b\x7c\xb2"
      "\xec\xde\xe8\x5c\x6b\xbe\x75\x6d\x7a\xaa\x31\xd2\x9a\x5f\x6c\x2f\xb6\x67"
      "\x67\x46\x52\xa7\xb5\x65\x7f\x1a\x51\xc4\x85\x14\xb1\x1c\x11\xab\xfd\x77"
      "\xef\xae\x2f\x8a\x78\x3d\x52\x7c\xe7\xd8\x5a\xfa\xd7\xfe\x88\x43\xdd\xf3"
      "\xf0\xc5\x2b\xa3\x5f\x3d\x7d\x76\xe7\x76\x14\xfb\xd8\xc7\x5d\x28\xdb\xd9"
      "\xe8\x8b\x58\x2e\x1e\x81\x31\x3b\xc0\xfa\xa3\x88\x7f\x8e\x14\x3f\x7b\xe7"
      "\x44\xfc\x5b\x7f\x44\x2d\x3a\x3f\xf1\x85\x88\x57\xcb\xfc\x41\xc4\x5b\xd1"
      "\x19\xef\x54\x7e\x31\xce\x47\xbc\xb7\xcd\xf7\x88\x47\x53\x2d\x8a\xf8\xff"
      "\x72\xfc\x2f\xae\xa5\x77\xfa\xcb\xeb\x41\xf7\xba\x72\xf9\x6b\x8d\xaf\xcc"
      "\x5c\x9f\xed\x29\xdb\xbd\xae\x3c\xf2\xf7\x87\x07\xe9\x80\x5f\x9b\xea\x51"
      "\xc4\x8f\xaa\x2b\xfe\x5a\xfa\x77\xff\x5d\x03\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x1c\x20\x45\xfc\x7a\xa4\x78\xf1\xdd\x13\xa9\x9a\x1f"
      "\x7c\x67\x4e\x71\x7b\xe6\x46\xe3\x6a\xeb\xda\x74\x67\x5a\x5f\x77\xee\x5f"
      "\x77\xce\xf4\xfa\xfa\xfa\x7a\x23\x75\xb2\x99\x73\x3c\xe7\x52\xce\xe5\x9c"
      "\x2b\x39\x57\x73\x46\x91\xeb\xe7\x6c\x96\x59\x5f\x5f\x1f\xcf\xef\x97\x72"
      "\x2e\xe7\x5c\xc9\xb9\x9a\x33\x0e\xe5\xfa\x39\x9b\x39\xc7\x73\x2e\xe5\x5c"
      "\xce\xb9\x92\x73\x35\x67\xd4\x72\xfd\x9c\xcd\x9c\xe3\x39\x97\x72\x2e\xe7"
      "\x5c\xc9\xb9\x9a\x33\x0e\xc8\xdc\x3d\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\xe0\xe3\xa5\xa8\xfe\x49\xf1\xed\x6f\xac\xa5\xf5\xfe"
      "\xce\xfa\xd2\xe3\xd1\xc9\x15\xeb\x81\x7e\xec\xfd\x32\x00\x00\xff\xff\x21"
      "\x5f\xf8\xab",
      3117);
  syz_mount_image(/*fs=*/0x20000080, /*dir=*/0x20000180,
                  /*flags=MS_REC|MS_MANDLOCK*/ 0x4040, /*opts=*/0x200015c0,
                  /*chdir=*/2, /*size=*/0xc2d, /*img=*/0x200001c0);
  memcpy((void*)0x20000380, "./file0\000", 8);
  syscall(__NR_chdir, /*dir=*/0x20000380ul);
  memcpy((void*)0x20000d00,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         255);
  syscall(__NR_creat, /*file=*/0x20000d00ul, /*mode=*/0ul);
  memcpy((void*)0x20000e00, "./file0\000", 8);
  memcpy((void*)0x20001080,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         257);
  syscall(__NR_rename, /*old=*/0x20000e00ul, /*new=*/0x20001080ul);
  memcpy((void*)0x20000100, "./bus\000", 6);
  syscall(__NR_open, /*file=*/0x20000100ul,
          /*flags=O_SYNC|O_NOCTTY|O_NOATIME|O_CREAT|FASYNC|0x2*/ 0x143142ul,
          /*mode=*/0ul);
  memcpy((void*)0x20000380, "/dev/loop", 9);
  *(uint8_t*)0x20000389 = 0x30;
  *(uint8_t*)0x2000038a = 0;
  memcpy((void*)0x20000140, "./bus\000", 6);
  syscall(__NR_mount, /*src=*/0x20000380ul, /*dst=*/0x20000140ul, /*type=*/0ul,
          /*flags=MS_BIND*/ 0x1000ul, /*data=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  use_temporary_dir();
  loop();
  return 0;
}