// https://syzkaller.appspot.com/bug?id=b6a0533f6b07809edc2c0bd37cd156fdbe718fed
// 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*)0x200000000240, "nilfs2\000", 7);
  memcpy((void*)0x200000000200, "./file0\000", 8);
  memcpy(
      (void*)0x200000000900,
      "\x78\x9c\xec\xdd\x4d\x6c\x5c\x47\xe1\x00\xf0\x79\x6b\xaf\x13\x27\x69\xb3"
      "\xe9\xdf\xf9\xd7\xa4\xa1\x4d\x28\xb4\xe5\xa3\x76\x63\x9b\xf0\x11\x01\xa9"
      "\x9a\x0b\x51\x53\x71\xab\x54\x71\x89\x12\xb7\x44\x38\x01\x91\x4a\x90\xaa"
      "\x87\x24\x27\xc4\x85\x56\x55\xb8\xf2\x79\xea\xa5\x7c\xa8\x12\xb9\xa0\xa8"
      "\x27\x2e\x95\x68\x24\x2e\xe5\x52\x38\x70\x20\x0a\x52\x25\x0e\xd0\x90\x18"
      "\x79\x3d\xb3\xde\x1d\xef\xe6\xad\x1d\xdb\xeb\xf5\xfe\x7e\xd2\xdb\xd9\x79"
      "\x33\xbb\x33\x6f\xf7\xbd\xb7\x6f\xdf\x7b\x33\x13\x80\x81\x55\xa9\x3f\xce"
      "\xcc\x8c\x17\x21\x5c\xb9\xfa\xc6\xb1\x7f\x3c\xf6\xf7\xd1\x10\xae\x8e\x2d"
      "\xe5\xa8\xd5\x1f\x87\x9b\x62\xd5\x10\x42\x11\xe3\xc3\xd9\xfb\x7d\x30\xb4"
      "\x18\xde\xfe\xf0\xd5\x53\xed\xc2\x22\x4c\xd5\x1f\x53\x3c\x3c\x77\xb3\xf1"
      "\xda\x9d\x21\x84\x8b\xe1\x40\xb8\x16\x6a\x61\xdf\x95\xeb\xaf\xbf\x3b\xf5"
      "\xec\x89\x4b\xc7\x2f\x1f\x7c\xef\xcd\x23\x37\xd6\x67\xe9\x01\x00\x60\xb0"
      "\x7c\xe3\xda\x91\x99\xbd\x7f\xfd\xd3\x43\x7b\x3e\x7a\xeb\xe1\xa3\x61\x5b"
      "\x63\x7e\x3a\x3e\xaf\xc5\xf8\xae\x78\xdc\x7f\x34\x1e\xf8\xa7\xe3\xff\x4a"
      "\x68\x8d\x17\x4d\x53\xb3\x91\x2c\xdf\x70\x9c\x2a\x59\xbe\xa1\x36\xf9\x9a"
      "\xcb\xa9\x66\xf9\x86\x3b\x94\x3f\x92\xbd\x6f\xb5\x43\xbe\x6d\x25\xe5\x0f"
      "\x35\xcd\x6b\xb7\xdc\xd0\xcf\xd2\x7a\x5c\x0b\x45\x65\xa2\x25\x5e\xa9\x4c"
      "\x4c\x2c\xfe\x27\x0f\xf5\xff\xf5\x23\xc5\xc4\xb9\x33\x73\x2f\x9e\xef\x51"
      "\x45\x81\x35\xf7\xaf\x47\x42\x08\x07\x4c\xa6\x81\x9f\x2e\xd5\x37\x88\xde"
      "\xd7\x63\x43\xa7\xf9\xdd\xbd\xde\x03\x01\x2c\xca\xaf\x17\x2e\x73\x31\x3f"
      "\xb3\x70\x6f\x1a\xef\x36\xdc\x5d\xf9\x37\x9f\xae\xb4\x7f\x3d\xac\x81\x8d"
      "\x5e\xff\x95\xdf\x5f\xe5\xff\xea\x92\x3d\x0e\x6b\x67\xab\xae\x4d\x69\xb9"
      "\xd2\x76\xb4\x2b\xc6\x9b\xae\x23\x9c\x0d\x6d\xee\x5f\xca\xb7\xbf\xf9\xfc"
      "\x8d\xb3\xed\x3f\xbd\x5f\x7e\x3d\xa2\xda\x65\x3d\x3b\x5d\x47\xe8\x97\xeb"
      "\x0b\x9d\xea\x39\xb4\xc1\xf5\x58\xad\x4e\xf5\xcf\xd7\x8b\xad\xea\x2b\x31"
      "\x4c\x9f\xc3\x57\xb3\xf4\xe6\xed\x27\xff\x4e\xfb\xe5\x3b\x06\xda\xfb\xb7"
      "\xf3\xff\x26\xd3\xc0\x4e\xcb\x8e\x6f\xef\x22\xbf\x57\x06\xd8\xda\xf2\xfb"
      "\xe6\xe6\xa3\x94\x9e\xdf\xd7\x97\xa7\x6f\x2b\x49\xdf\x5e\x92\x3e\x5a\x92"
      "\xbe\xa3\x25\xd7\xf2\xf4\x9d\x25\xaf\x87\x41\xf6\xbb\x97\x7f\x1c\x5e\x2b"
      "\x96\xfe\xe7\xe7\xff\xe9\x57\x7a\x3e\x3c\x9d\x67\xbb\x2f\x86\xf7\xaf\xb0"
      "\x3e\xf9\xf9\xc8\x95\x96\x3f\x72\x97\xd8\x46\x94\xef\x18\x89\x7e\xf2\xfb"
      "\x93\xcf\xcf\x7e\xf1\xf4\x0b\xd7\x17\xef\xff\x2f\x1a\xeb\xff\x9d\xb8\xbe"
      "\x1f\x88\xf1\x5a\xdc\x9a\xae\xc5\x0c\xe9\x7c\x61\x7e\x5e\xbd\x71\xef\x7f"
      "\xad\xb5\x9c\x4a\x87\x7c\x0f\x64\xf5\xb9\xaf\x4d\xfe\xfa\xf3\xb1\xd6\x7c"
      "\xc5\xd8\xd2\xfb\x84\xa6\xfd\xcc\xb2\x7a\x8c\xb7\xbe\x6e\x77\xa7\x7c\xfb"
      "\x5b\xf3\xd5\xb2\x7c\xa3\x71\xda\x9e\xd5\x37\x3f\x3e\xd9\x91\xbd\x2e\x1d"
      "\x7f\xa4\xfd\x6a\xfa\xbc\x86\xb3\xe5\xad\x66\xcb\x31\x92\xd5\x23\xed\x57"
      "\xf6\xc4\x30\xaf\x07\xac\x46\x5a\x1f\x3b\xdd\xff\x9f\xd6\xcf\xf1\x50\x2d"
      "\x5e\x3c\x33\x37\xfb\x54\x8c\xa7\xf5\xf4\x8f\x43\xd5\x6d\x0b\xf3\x0f\x95"
      "\x17\xf5\xeb\xb5\xae\x3b\x70\x6f\xba\x6d\xff\x33\x1e\x5a\xdb\xff\xec\x6a"
      "\xcc\xaf\x56\x9a\xf7\x0b\xbb\x97\xe6\x17\xcd\xfb\x85\x5a\x36\x7f\xaa\xc3"
      "\xfc\xe9\x18\x4f\xbf\x73\xdf\x1a\x1a\xad\xcf\x9f\x38\xf5\x9d\xb9\xd3\x6b"
      "\xbd\xf0\x30\xe0\xce\x5f\x78\xe5\xdb\x27\xe7\xe6\x66\xbf\xe7\x89\x27\x9e"
      "\x78\xd2\x78\xd2\xeb\x3d\x13\xb0\xde\x26\x5f\x3e\xfb\xdd\xc9\xf3\x17\x5e"
      "\x79\xf2\xcc\xd9\x93\x2f\xcd\xbe\x34\x7b\x6e\xfa\xf0\xe1\xe9\xa9\xa9\xc3"
      "\x5f\x9a\x9e\x99\xac\x1f\xd7\x4f\x36\x1f\xdd\x03\x5b\xc9\xd2\x8f\x7e\xaf"
      "\x6b\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x74\xeb\xfb\xc7\x8f\x5d\xff"
      "\xf3\x3b\x5f\x78\x7f\xb1\xfd\xff\x52\xfb\xbf\xd4\xfe\x3f\xdd\xf9\x9b\xda"
      "\xff\xff\xb0\x58\x6c\xeb\x5e\x69\x9a\x1f\xda\x8c\x03\x98\xda\x01\xee\x69"
      "\x93\x5e\xcf\x93\x75\xb0\x3a\x92\xe5\xab\xc6\xe9\xff\xb2\xfa\x8e\x65\xe5"
      "\xec\xcd\x5e\xf7\xff\x31\x6c\x8c\xe3\x17\xdb\xff\xa7\xe2\xf2\x7e\x5d\x53"
      "\x7d\x1e\xcc\xe6\xe7\xfd\xf7\xa6\x7c\x59\x77\x02\xcb\xfa\x4b\x19\xc9\x7a"
      "\x1d\xc9\xc7\x0b\xfc\x44\x0c\x2f\xc7\xf0\x17\x01\x7a\xa8\x18\x6d\x3f\x3b"
      "\x86\x65\xfd\x5b\xa7\x75\x3d\xf5\x4f\xb1\x82\x7e\x29\xda\x17\x4c\x4f\xa4"
      "\xef\x2d\x7d\x29\xa9\x1f\x93\xd4\xfe\xbb\x53\xbf\x4e\x69\xff\xbf\x67\x03"
      "\xea\xc8\xda\xdb\x88\xe6\x84\xbd\x5e\x46\xa0\xbd\x7f\x76\xe8\xff\xbb\xfe"
      "\x3b\xbf\x09\xfa\x27\x5e\xcf\x69\x64\x9d\x97\xf1\x97\xf7\xf7\x7e\x19\xb7"
      "\x77\x4e\xdb\xd6\xeb\xba\x6d\xce\xe9\x2f\x3f\x0a\x03\xb0\xee\xa7\x69\x7e"
      "\xde\x28\x1e\xc0\xe6\xd0\xeb\xf1\x3f\xd3\x79\xcf\x14\x9e\xfb\xc3\xd7\xb7"
      "\x2f\x4c\x29\xdb\xcd\xa7\x5b\xf7\x97\x79\xff\xa5\x70\x2f\x36\xfb\xf8\x93"
      "\xca\xdf\x5a\xe3\x7f\x36\xc6\xbf\xeb\x6a\xff\x77\x6b\xf9\xe8\x09\xb5\xd5"
      "\x95\xfb\x9f\x9f\xde\x78\xbf\xa9\xd8\xb0\xaf\xdb\xfd\x6f\xbe\xfc\xa9\x1f"
      "\xe8\xb1\xbc\x84\xbb\x9f\x89\xfe\x68\xa1\xfc\x5b\x4b\x8b\xf2\x78\xe8\xae"
      "\xfc\xf9\x9f\x67\xe5\xe7\x17\x84\xba\x74\x2b\x2e\x7f\xfa\xfc\x77\x74\x59"
      "\xfe\xb2\xe5\xdf\x5f\x56\xd2\x85\xb7\xdb\xcd\xfd\x6f\x2c\x3f\x7d\x6c\x4f"
      "\x3c\xda\x6d\xf9\x8b\x35\x2e\x2a\xad\xf5\xc8\xcf\x1b\xa7\xeb\x7f\xf9\x79"
      "\xe3\xe4\x76\xb6\xfc\xa7\x57\xbb\xfc\xab\x1c\xa8\xf1\x4e\x2c\x1f\x06\x59"
      "\xbf\x8c\x33\xbb\x52\x5d\x8c\xff\x5b\x57\x36\xfe\xef\x32\x6b\x3c\xfe\x6f"
      "\x27\xf9\x7d\x18\x9f\x8f\xf1\xb4\x23\x4c\xf7\x39\xe4\x23\x9c\xac\xb0\xfe"
      "\x8d\x48\xfa\x1d\xd8\x9b\xbd\x7f\x51\xf2\xfb\x66\xfc\xdf\xfe\xf6\xe5\x18"
      "\x96\x6d\x0f\x69\xfc\xdf\xb4\x3e\xd6\xda\xc4\x2b\x4d\xf1\x6a\x9b\xcf\x76"
      "\xab\xee\x6b\xa0\x5f\x7d\xb0\x79\xc7\xff\x5d\xfa\xa1\xea\x7d\x5d\x4c\xdd"
      "\x7e\x5f\xbd\xaf\x87\x69\x05\xd3\xfc\xfc\xfc\xfa\x9e\xd0\x2a\xd1\xd3\xc2"
      "\xe9\xf9\xe7\xdf\xeb\xff\x09\xbd\x2e\xbf\xd7\x9f\x7f\x99\x7c\xfc\xdf\xfc"
      "\x18\x3e\x1f\xff\x37\x4f\xcf\xc7\xff\xcd\xd3\xf3\xf1\x7f\xf3\xf4\x7c\x7c"
      "\xbd\x3c\x7d\x47\x96\x9e\x7f\x9e\xf9\xf8\xbf\x79\xfa\x83\xd9\xfb\xe6\xe3"
      "\x03\x8f\x67\x7f\xb0\xf3\xf4\x8f\x95\xbc\x7e\x5f\x49\xfa\x43\x25\xe9\xfb"
      "\x4b\xd2\x3f\x5e\x92\x7e\xb0\x24\xfd\xe1\x92\xf4\x47\x4a\xd2\x1f\x28\x49"
      "\x7f\xb4\x24\xfd\x93\x25\xe9\x9f\x2a\x49\x7f\xac\x24\xfd\x89\x92\xf4\x4f"
      "\x97\xa4\x6f\x75\xa9\x3d\xca\xa0\x2e\x3f\x0c\xb2\xbc\x7d\x9e\xed\x1f\x06"
      "\x47\x6a\x5f\xdb\x69\xfb\x1f\x2b\x49\x07\xfa\xd7\x4f\xde\x3a\xf4\xcc\x0b"
      "\xbf\xfd\x66\x6d\xb1\xfd\xff\x48\xe3\x7c\x48\xba\x8e\x77\x34\xc6\xab\xf1"
      "\xbf\xf3\x0f\x62\x3c\xbf\xee\x1d\x9a\xe2\x0b\x69\xef\xc4\xf8\xdf\xb2\xf4"
      "\xcd\x7e\xbe\x03\x06\x49\xde\x7f\x46\xfe\xfb\xfe\x78\x49\x3a\xd0\xbf\xd2"
      "\x7d\x5e\xb6\x6f\x18\x40\x45\xfb\x76\x12\xdd\xf6\x5b\xd5\xe9\x38\x9f\xfe"
      "\xf2\x99\x18\x7e\x36\x86\x9f\x8b\xe1\x93\x31\x9c\x88\xe1\x64\x0c\x0f\xc5"
      "\x70\x6a\x83\xea\xc7\xfa\x78\xe6\x37\x6f\x1f\x79\xad\x58\xfa\xbf\xbf\x3b"
      "\x4b\xef\xf6\x7e\xf2\xbc\x3d\x50\xde\x4f\xd4\x74\x97\xf5\xc9\xcf\x0f\xac"
      "\xf4\x7e\xfc\xbc\x1f\xbf\x95\xba\xd7\xf2\x57\xd9\x1c\x0c\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\xa0\x67\x2a\xf5\xc7\x99\x99\xf1\x22\x84\x2b\x57\xdf\x38\xf6\xfc\x89"
      "\x33\x93\x0b\x73\xbe\xd6\xc8\x51\xab\x3f\x0e\x37\xc5\xaa\x8d\xd7\x85\xf0"
      "\x54\x0c\x87\x62\xf8\xb3\xf8\xe4\xf6\x87\xaf\x9e\x6a\x0e\xef\xc4\xb0\x08"
      "\x53\xa1\x08\x45\x63\x7e\x78\xee\x66\xa3\xa4\x9d\x21\x84\x8b\xe1\x40\xb8"
      "\x16\x6a\x61\xdf\x95\xeb\xaf\xbf\x3b\xf5\xec\x89\x4b\xc7\x2f\x1f\x7c\xef"
      "\xcd\x23\x37\xd6\xef\x13\x00\x00\x00\x80\xad\xef\x7f\x01\x00\x00\xff\xff"
      "\x15\x50\x1d\xfa",
      2668);
  syz_mount_image(/*fs=*/0x200000000240, /*dir=*/0x200000000200,
                  /*flags=MS_SYNCHRONOUS*/ 0x10, /*opts=*/0x200000000480,
                  /*chdir=*/5, /*size=*/0xa6c, /*img=*/0x200000000900);
  memcpy((void*)0x200000000080, "./file0\000", 8);
  syscall(
      __NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000080ul,
      /*flags=O_TRUNC|O_SYNC|O_NOCTTY|O_CREAT|O_CLOEXEC|FASYNC|0x1*/ 0x183341,
      /*mode=*/0);
}
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;
  loop();
  return 0;
}