// https://syzkaller.appspot.com/bug?id=e8bb9c78cf88b0dedb5445593d2f69dc3b984417
// 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 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 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, loopfd = -1, 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) {
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    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) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  errno = err;
  return res;
}

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");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

void execute_one(void)
{
  memcpy((void*)0x200001c0, "hfs\000", 4);
  memcpy((void*)0x200004c0, "./bus\000", 6);
  memcpy((void*)0x20002680,
         "\x63\x6f\x64\x65\x70\x61\x67\x65\x3d\x63\x70\x39\x33\x36\x2c\x64\x69"
         "\x72\x5f\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30"
         "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x34\x36\x32\x35\x2c\x64\x69"
         "\x72\x5f\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30"
         "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x37\x2c\x74\x79"
         "\x70\x65\x3d\x95\xc1\x09\x9e\x2c\x66\x69\x6c\x65\x5f\x75\x6d\x61\x73"
         "\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
         "\x30\x30\x30\x30\x30\x30\x31\x2c\x00",
         128);
  *(uint8_t*)0x20002700 = -1;
  *(uint16_t*)0x20002701 = -1;
  *(uint16_t*)0x20002703 = -1;
  memcpy((void*)0x20002705, "\xc2\x8b", 2);
  memcpy(
      (void*)0x20002707,
      "\x2c\x8a\xdb\xc4\x3e\xb4\x0c\x59\x3b\xd3\x48\x54\xc1\x39\xa6\xe0\xd6\x12"
      "\xcd\x79\xae\x3c\xfe\xb2\x06\x26\xdf\x8e\x2a\x39\xb6\xee\x3c\x01\x8d\xd3"
      "\xde\x3f\x26\xba\x80\x2c\x02\x58\xf3\x62\x55\x09\x65\x1a\xa9\xd7\xb4\xd5"
      "\xbb\x31\xd7\xdf\x49\x07\xd8\xb0\xe0\x73\x53\xd4\xdf\xfa\xdb\xf3\x19\x07"
      "\x3a\xee\x87\x8d\x16\x21\xad\x06\x3a\xfc\x28\x59\x53\x7d\xe4\x3c\x01\x38"
      "\xd2\x49\x32\x23\x7f\x7b\xfb\x67\xdb\xcd\x47\x6b\x96\x2c\xe4\x14\x70\xa6"
      "\x2e\x44\x18\x28\xca\x5e\x38\x24\x4e\x1e\xa9\x27\xee\xfd\xd0\x64\xa3\xd2"
      "\x49\x09\x64\x0a\x10\x70\x91\x8b\xbc\x92\xd0\x92\x06\x8b\xce\xab\xef\x33"
      "\x2d\x16\x40\x6e\x4c\x36\xec\xcb\xa5\x13\x43\xbe\x9a\x52\x75\x62\x4b\xec"
      "\x14\x3c\x58\xd5\xd5\x57\x60\xd8\x1f\xae\x5b\xe4\xb9\xa0\x7b\x9b\xa9\xe3"
      "\x6e\x67\x31\xea\xfc\xad\x11\x1a\xd2\x73\xd3\xab\x13\xe6\xa1\x15\xb7\x95"
      "\xd7\x8b\x2d\xd9\x16\xec\x39\x30\xcd\xfa\xf0\x68\xfc\xfd",
      212);
  memcpy(
      (void*)0x20000200,
      "\x78\x9c\xec\xdd\xcf\x6a\x13\x51\x14\xc7\xf1\xdf\x9d\xa4\x6d\x6a\x4b\x9d"
      "\xfe\x91\x82\xcb\x6a\xc1\x95\xd8\xba\x11\x37\x8a\xf4\x21\x5c\x88\xa8\x4d"
      "\x84\x62\xa8\xa0\x15\xd4\x95\xb8\x16\x71\x27\xb8\x77\xe7\x5a\x7c\x01\x37"
      "\xae\xc4\x17\xd0\x95\x2b\x1f\x20\xbb\x91\x7b\x67\x92\x4c\xe2\xfc\x6b\x34"
      "\xb9\x4d\xfc\x7e\x20\x21\x3a\xf7\xdc\x39\xa7\x33\xc9\xdc\x13\x48\x22\x00"
      "\xff\xad\x1b\x7b\xdf\xdf\x5f\xfe\x69\x6f\x46\xaa\xa9\x26\xe9\xaa\x14\x48"
      "\x6a\x48\x75\x49\x67\xb4\xd9\x78\x72\x78\x74\x70\xd4\x6e\x35\x8b\x26\xaa"
      "\xb9\x08\x7b\x33\x8a\x23\xcd\x1f\x63\xf6\x0f\x5b\x59\xa1\x36\xce\x45\x24"
      "\x42\xfb\xaf\xba\x96\xd3\xff\x87\xf1\x88\xa2\x28\xfa\xe1\x3b\x09\x78\xe7"
      "\x9e\xfd\x19\x02\x69\x21\x79\x76\xba\xed\x8d\x89\x67\x36\x1e\x2f\x7c\x27"
      "\xe0\x99\xe9\xa8\xa3\xa7\x5a\xf1\x9d\x07\x00\xc0\xaf\xe4\xfa\x1f\x24\xd7"
      "\xf9\xe5\x64\xfd\x1e\x04\xd2\x76\x72\xd9\x9f\xa9\xeb\x7f\xc7\x77\x02\x9e"
      "\xa5\xae\xff\xae\xcb\x8a\x8c\x3d\xbe\xa7\xdd\xa6\x7e\xbf\xe7\x5a\x38\xbb"
      "\x3d\xe8\x76\x89\x05\x33\xe6\x6e\x99\x57\x7c\x66\x0d\x2c\x30\x4d\x59\x57"
      "\xe9\x72\x09\x16\xef\x1f\xb4\x5b\x17\xf7\x1f\xb6\x9b\x81\x5e\xea\x5a\x22"
      "\x35\x6c\xc3\xdd\x37\xe3\x53\xb7\xab\x24\xdb\xad\x82\x64\x33\x94\xd7\x9e"
      "\x67\xc9\xd5\x30\x67\x6b\xd8\xcd\xc9\x7f\x7d\x94\x3d\xbe\x3d\x7e\x2a\x3d"
      "\xe6\x8b\xf9\x6a\x6e\x9b\x50\xef\xd4\xec\xad\xff\xea\x91\xb1\x87\xc9\x1d"
      "\xa9\xd0\x1d\xa9\xb0\x17\x10\xe7\x7f\x29\x7f\x46\x57\x65\x18\x8f\xca\xa9"
      "\x72\xd5\xed\xe4\x6c\xb2\x07\x7d\xfa\x50\xa1\xca\x46\x76\x47\xa2\xee\x19"
      "\xb5\xaa\xc1\x37\x08\xc2\x6e\x9e\x6f\xe6\x0b\xa2\xd6\x86\xa2\xe2\xea\x76"
      "\xf2\xab\x73\x51\xeb\x99\x51\xbb\x25\x51\x1b\xc3\x51\xfd\xb3\x39\x3f\x72"
      "\x74\x39\x65\x0f\x31\xaf\xcd\x4d\xb3\xa5\x5f\xfa\xa8\xbd\xd4\xfa\x3f\xb0"
      "\x7f\xed\x6d\x55\x79\x66\xda\x31\x6e\x64\x72\x66\x14\xd6\x53\x77\x23\xc3"
      "\x0a\x89\x05\x95\xd2\x47\x55\x73\x85\x5b\x5f\xe9\x9e\xae\x68\xe5\xf1\xb3"
      "\xe7\x0f\xee\xb6\xdb\xad\x47\x53\xf1\xa0\x76\x32\xd2\x98\xf8\x83\xba\x26"
      "\xb1\xaf\xee\x09\x73\x22\x4a\x9e\xed\x07\xfa\xeb\x79\x6a\x5a\xd0\x58\x53"
      "\x2d\x7a\xf1\x58\xfc\x97\xaf\x53\xf0\xa8\x7f\xd0\xb5\x79\xcb\x77\x32\xf0"
      "\xc1\xae\xbb\x4c\xdc\xff\xa5\xfa\x95\xeb\x6e\x9b\xed\x93\x42\xb7\x4e\x9f"
      "\x53\xd6\x3a\x3d\x2a\x9b\x3c\x35\xe3\x4e\x4e\x6f\xb0\xe6\xee\x4f\x1d\xab"
      "\x83\x5b\xca\xef\xe0\xaa\xf6\x5c\xe7\x2e\x48\xe7\x0b\xf6\xf8\x79\x70\xda"
      "\x30\xc9\x73\x46\x98\x3d\x7d\xd3\x1d\xde\xff\x07\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x98\x36\xd5\x3e\x0f\xb0\x90\x8c\x1e\xed"
      "\xe3\x04\x9e\x4b\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x60\xea\x8d\xff\xf7\x7f\x53\xdf\xea\x5d\xfe\xfb\xbf\xee\x5b"
      "\xba\xf9\xfd\x5f\x60\x32\x7e\x07\x00\x00\xff\xff\x0b\xc8\x7b\x3c",
      646);
  syz_mount_image(/*fs=*/0x200001c0, /*dir=*/0x200004c0, /*flags=*/0x80841a,
                  /*opts=*/0x20002680, /*chdir=*/7, /*size=*/0x286,
                  /*img=*/0x20000200);
  memcpy((void*)0x200000c0, "./file0\000", 8);
  syscall(__NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000c0ul, /*mode=*/0ul);
  memcpy((void*)0x20000200, "./file0/../file0\000", 17);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x20000200ul, /*type=*/0ul,
          /*flags=*/0x101091ul, /*data=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  loop();
  return 0;
}