// https://syzkaller.appspot.com/bug?id=981f82f21b973f2f5663dfea581ff8cee1ddfef2
// 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 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;
}

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 (;;) {
      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;
    }
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x20000600, "hfsplus\000", 8);
  memcpy((void*)0x20000640, "./file0\000", 8);
  memcpy((void*)0x20000140, "nls", 3);
  *(uint8_t*)0x20000143 = 0x3d;
  memcpy((void*)0x20000144, "iso8859-13", 10);
  *(uint8_t*)0x2000014e = 0x2c;
  memcpy((void*)0x2000014f, "gid", 3);
  *(uint8_t*)0x20000152 = 0x3d;
  sprintf((char*)0x20000153, "0x%016llx", (long long)0);
  *(uint8_t*)0x20000165 = 0x2c;
  memcpy((void*)0x20000166, "gid", 3);
  *(uint8_t*)0x20000169 = 0x3d;
  sprintf((char*)0x2000016a, "0x%016llx", (long long)0);
  *(uint8_t*)0x2000017c = 0x2c;
  memcpy((void*)0x2000017d, "barrier", 7);
  *(uint8_t*)0x20000184 = 0x2c;
  memcpy((void*)0x20000185, "nobarrier", 9);
  *(uint8_t*)0x2000018e = 0x2c;
  *(uint8_t*)0x2000018f = 0;
  memcpy(
      (void*)0x20002480,
      "\x78\x9c\xec\xdd\x4f\x6f\x1c\x67\x1d\x07\xf0\xef\x6c\x62\xc7\x0e\x52\xba"
      "\x49\x93\xa6\x20\x24\xac\x72\x00\x35\x22\xb1\x77\x23\x13\x24\x24\xa0\x14"
      "\x64\xa1\x0a\x55\xe2\xd2\xab\x95\x6c\x6a\x2b\x9b\x34\xb2\xb7\xc8\xed\x01"
      "\x99\x8a\x73\xfb\x16\xca\xc1\x9c\x39\x70\x42\x41\xca\x81\x33\x6f\xc1\xa8"
      "\x47\x04\x77\xdf\x8c\x66\x76\xd6\xde\x26\xdb\x8d\xf3\xc7\xd9\xb5\xf2\xf9"
      "\x48\xb3\xcf\xf3\xcc\x33\xf3\xcc\x6f\x7e\x99\x99\xcc\xcc\xca\xda\x00\xaf"
      "\xac\x95\x0f\x32\xf3\x30\x45\x56\xae\xbc\xb7\x55\xb6\x77\x77\xda\xdd\xdd"
      "\x9d\xf6\xdd\x41\x3d\xc9\x99\x24\x8d\x64\x2e\x49\x51\xce\xfe\x5b\x92\xaf"
      "\x92\xed\xf4\xa7\x7c\x7b\xd0\x31\x54\x3e\xa6\xf8\x62\xe5\xe6\xda\x83\xcf"
      "\x2f\xf7\x5b\x73\xf5\x54\x2d\x5f\x8c\x5b\xef\x68\x0e\x62\x69\xf6\x63\xad"
      "\xca\x17\x35\x5e\xeb\xb9\xc7\x3b\xdc\xc3\x85\x24\x17\xea\x12\x26\x6e\x7f"
      "\xe0\xdf\x23\xbb\x9f\xf3\xbc\x04\x00\xa6\x59\x91\x9c\x1a\x35\xbf\x99\x9c"
      "\xad\x6f\xd6\xcb\xe7\x80\xfe\x5d\x71\xff\x1e\xfb\x44\xdb\x9e\x74\x00\x00"
      "\x00\x00\xf0\x12\xbc\xb6\x97\xbd\x6c\xe5\xdc\xa4\xe3\x00\x00\x00\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\x93\xa4\xfe\xfd\xff\xa2\x9e\x1a\x83\xfa\x42\x8a\xc1"
      "\xef\xff\xcf\xd6\xf3\x52\xd7\x4f\xb4\x87\x93\x0e\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x8e\x68\xdc\x97\xf4\xdf\xdb\xcb\x5e\xb6\x72\x6e\xd0\xde\x2f\xaa"
      "\xef\xfc\xdf\xaa\x1a\x17\xab\xcf\x6f\xe5\xe3\x6c\xa6\x93\x8d\x5c\xcd\x56"
      "\x56\xd3\x4b\x2f\x1b\x59\x4a\xd2\x1c\xde\xc8\xd6\x6a\xaf\xb7\xb1\x74\x84"
      "\x35\x5b\x23\xd7\x6c\xbd\xd8\x7d\x06\x00\x00\x00\x00\x00\x00\x80\x57\xcc"
      "\x67\x59\x39\xfc\xfe\x1f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa6"
      "\x41\x91\x9c\xea\x17\xd5\x74\x71\x50\x6f\xa6\x71\x3a\xc9\x5c\x92\xd9\x72"
      "\xb9\xed\xe4\xc1\xa0\x7e\x92\x3d\x9c\x74\x00\x00\x00\x00\xf0\x12\xbc\xb6"
      "\x97\xbd\x6c\xe5\xdc\xa0\xbd\x5f\x54\xcf\xfc\x6f\x54\xcf\xfd\x73\xf9\x38"
      "\xf7\xd2\xcb\x7a\x7a\xe9\xa6\x93\x5b\xd5\xbb\x80\xfe\x53\x7f\x63\x77\xa7"
      "\xdd\xdd\xdd\x69\xdf\x2d\xa7\xc7\xc7\xfd\xc5\xff\x9e\x2a\x8c\x6a\xc4\xf4"
      "\xdf\x3d\x8c\xde\xf2\x62\xb5\xc4\xa5\x83\x35\x56\xf2\xeb\xfc\x2e\x57\x66"
      "\x06\xed\xdf\x67\x35\xbd\x74\xb2\x90\x77\xab\xda\x6a\x8a\x34\xeb\xb7\x17"
      "\xcd\x41\x9c\xa3\xe3\xfd\xf9\xd7\x5a\xef\x3f\x29\xd6\x37\xab\x48\xe6\x73"
      "\x3b\xeb\x55\x6c\x57\x73\x33\x1f\xa5\x9b\x5b\x69\x54\xfb\x50\x2d\x33\x7e"
      "\x8b\x7f\x2c\xb3\x53\xfc\xac\x76\xc4\x1c\xdd\xaa\xcb\x72\x8f\x7e\x53\x97"
      "\xd3\xa1\x59\x65\x64\xe6\x20\x23\x8b\x75\xee\xcb\x6c\x9c\x1f\x9f\x89\xb1"
      "\xc7\xc9\xcc\x13\xb7\xb4\x94\xc6\xc1\x3b\xa8\x8b\xc7\x90\xf3\xb3\x75\x59"
      "\xe6\xfa\xdd\x63\xce\xf9\x67\x4f\xb5\xf4\xa3\x99\x68\x0d\x1d\x7d\x6f\x8c"
      "\xcf\x44\xb2\xd8\xfa\xef\xfd\xb5\xee\xbd\x3b\x6b\xb7\x37\xaf\x4c\xcf\x61"
      "\xf4\x8c\x1e\xcd\x44\x7b\x28\x13\x97\x5f\xa9\x4c\xcc\xd6\xd9\xe8\x5f\x45"
      "\x47\x5c\x2d\xb3\x90\xf7\xb3\x91\xf5\x11\x57\xcb\xb7\xaa\x75\xcf\x65\x3d"
      "\xbf\xcd\x47\xb9\x95\x4e\x6e\x64\x31\x37\xb2\x9c\xeb\x69\x67\x39\x3f\xc9"
      "\xf2\x50\x5e\x2f\xed\x17\x4f\x3c\xd7\x1a\x4f\x77\xae\x7d\xff\x87\x75\xa5"
      "\x3c\xeb\x7f\x35\xf2\xec\x9f\x94\x32\xaf\xe7\x87\xf2\x3a\x7c\xa5\x6b\x56"
      "\x7d\xc3\x73\x0e\xb3\x74\xe1\xc5\x5f\x91\x4e\x7f\xa7\xae\x94\x07\xeb\x3b"
      "\x53\xf7\xbf\xc0\xf9\x47\xae\xcd\x83\x4c\xbc\x3e\x3e\x13\x7f\xde\x2f\x3f"
      "\x37\xbb\xf7\xee\x6c\xac\xad\xde\x3f\xe2\xf6\x7e\x50\x97\x65\x06\x7e\x39"
      "\x55\x99\x28\x8f\x97\x0b\xe5\x3f\x56\xd5\xfa\xfa\xd1\x51\xf6\xbd\x3e\xb2"
      "\x6f\xa9\xea\xbb\x78\xd0\xd7\x78\xac\xef\xd2\x41\xdf\x93\xce\xd4\xd9\xfa"
      "\x1e\xee\xf1\x91\x5a\x55\xdf\xe5\x91\x7d\xed\xaa\xef\xcd\xa1\xbe\x51\x77"
      "\x39\x00\x4c\xbd\xb3\x6f\x9f\x9d\x9d\xff\xcf\xfc\xbf\xe6\xbf\x9c\xff\xd3"
      "\xfc\xda\xfc\x7b\x73\xef\x9c\xb9\x71\xe6\xbb\xb3\x99\xf9\xe7\xe9\xbf\x9f"
      "\xfa\x6b\xe3\x2f\x8d\x9f\x16\x6f\xe7\xcb\xfc\xe1\xf0\xf9\x1f\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x78\x76\x9b\x9f\x7c\x7a\x67\xb5\xdb\xed\x6c\xa8\xa8\x1c\x7b\x25"
      "\xdb\xc9\x14\x84\xa1\x72\x84\xca\xa4\xaf\x4c\xc0\x71\xbb\xd6\xbb\x7b\xff"
      "\xda\xe6\x27\x9f\xfe\x68\xfd\xee\xea\x87\x9d\x0f\x3b\xf7\xae\x2f\x2d\xb7"
      "\xae\x5f\x5f\x5c\xfe\xf1\x8d\x6b\xb7\xd7\xbb\x9d\xc5\xfe\xe7\xa4\xc3\x04"
      "\x00\x5e\xa0\xa1\x67\x33\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x60"
      "\x4a\xbd\x94\xbf\xfa\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\x46\x2b\x1f\x64\xe6\x61\x8a\x2c\x2d\x5e\x5d\x2c"
      "\xdb\xbb\x3b\xed\x6e\x39\x0d\xea\x49\x8a\xfe\x92\x73\x83\xea\x3f\x92\x7c"
      "\x95\x6c\xa7\x3f\xa5\x39\x34\x5c\xf1\x4d\xdb\x29\xbe\x58\xb9\xb9\xf6\xe0"
      "\xf3\xcb\x87\x63\xcd\x0d\x96\x2f\xc6\xad\x77\x34\x07\xb1\x94\x1f\x8d\x47"
      "\x62\x7a\x9e\xf1\xca\x71\x5a\xcf\x3d\xde\xe1\x1e\x2e\x24\xb9\x50\x97\x30"
      "\x71\xff\x0f\x00\x00\xff\xff\x03\xe6\x01\x48",
      1505);
  syz_mount_image(/*fs=*/0x20000600, /*dir=*/0x20000640, /*flags=*/0,
                  /*opts=*/0x20000140, /*chdir=*/1, /*size=*/0x5e1,
                  /*img=*/0x20002480);
  memcpy((void*)0x20000040, "./file6\000", 8);
  syscall(__NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x20000040ul, /*mode=*/0ul);
  memcpy((void*)0x200001c0, "./file6\000", 8);
  syscall(__NR_unlinkat, /*fd=*/0xffffff9c, /*path=*/0x200001c0ul,
          /*flags=AT_REMOVEDIR*/ 0x200ul);
}
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;
  loop();
  return 0;
}