// https://syzkaller.appspot.com/bug?id=dacdd83da50d42f90f00ea4b3c264efb31070b26
// 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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x20000000, "hfsplus\000", 8);
  memcpy((void*)0x20000080, "./file0\000", 8);
  memset((void*)0x20000400, 0, 1);
  *(uint64_t*)0x20000401 = -1;
  memcpy(
      (void*)0x20001480,
      "\x78\x9c\xec\xdd\x4b\x68\x1c\xe7\x1d\x00\xf0\xff\xac\x56\x2b\xad\x4b\x6d"
      "\x39\xf1\xa3\x2d\x81\x88\x18\xd2\x52\x51\x7b\x65\x21\xb7\xea\x25\x6e\x29"
      "\x45\x87\x50\x42\x7a\xe8\x79\xb1\xe5\x58\x78\x2d\x07\x49\x29\xb2\x29\xb5"
      "\xd2\xc7\xbd\x87\x9c\x7a\x4a\x0f\xba\x99\x1e\x4a\x7a\x37\xb4\xe7\x86\x40"
      "\xf1\x55\xc7\x40\x21\x97\x5c\xaa\xdb\x96\x99\x9d\x59\xad\xb4\xab\x7d\xa8"
      "\x7a\x39\xf9\xfd\x60\xe6\xfb\x66\xbe\xe7\xfe\x47\x33\xb3\x0f\x9b\x09\xe0"
      "\x6b\x6b\x71\x26\xca\xcf\x23\x89\xc5\x99\xb7\x37\xd2\xed\xed\xad\xb9\xc6"
      "\xd8\xd6\xdc\x44\x5e\xdc\x88\x88\x4a\x44\x94\x22\xca\xad\x24\x92\x95\xc8"
      "\x4a\x6f\xe7\x4b\x7c\x3b\xdd\x99\xd7\x4f\x62\x3c\x22\xfe\xdb\xec\x1a\xe7"
      "\xa3\xe5\x85\x77\x5f\x7c\xb9\xfd\x79\x6b\xab\x9c\x2f\x59\xbb\x52\x47\xfb"
      "\x61\x54\xba\x77\x6d\xe6\x4b\x4c\x47\xc4\x58\x9e\x76\x1b\x3f\xa0\xc7\x4f"
      "\xf6\x0f\xbf\xa7\xbf\x3b\x07\xf6\x37\x8c\x52\x9e\xb6\x86\x48\x03\x76\xad"
      "\x08\x5c\xfc\xf9\xd0\xbd\xc2\x91\x68\x76\xd9\x6c\x97\x3d\xfb\x77\xb6\xee"
      "\xd7\x7c\x94\xf3\x16\x38\xa3\x92\xec\xbe\xd9\x9c\xd8\xbf\x7f\x2a\xe2\x5c"
      "\x44\x4c\x46\xb4\xee\xfa\xf9\xd5\xa1\x74\xf2\x33\x3c\x5a\x9b\xa7\x3d\x01"
      "\x00\x00\x00\x18\x55\x75\xf4\x26\x17\x76\x62\x27\x36\xe2\xfc\x71\x4c\x07"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbe\xaa\x5a\xcf\xff\x4f\x93\x6c\x29"
      "\x15\xf9\xe9\x48\x8a\xe7\xff\x57\xf2\x7d\x91\xe7\xcf\xa0\xc1\x0f\x42\xfc"
      "\x6c\xa2\x95\x3e\x3f\xfe\xc9\x00\x00\x00\x00\x00\x00\x00\xc0\x68\xca\xa3"
      "\x37\x79\x7d\x27\x76\x62\x23\xce\x17\xdb\xcd\x24\xfb\xcd\xff\x8d\x8e\xdf"
      "\xf8\xbf\x11\x1f\xc4\x5a\x2c\xc5\x6a\x5c\x8f\x8d\xa8\xc7\x7a\xac\xc7\x6a"
      "\xcc\x46\xc4\x54\x47\x47\x95\x8d\xfa\xfa\xfa\xea\x6c\xd6\x32\xaa\x97\xfa"
      "\xb4\xbc\x19\x9f\xf6\x68\x79\xf3\xe0\x39\xde\x1e\xfd\x65\x01\x00\x00\x00"
      "\x00\x00\x00\xc0\xcb\x6c\x72\x40\xf9\x83\xf1\xee\x7d\xbf\x8b\xc5\xdd\xdf"
      "\xff\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x2c\x48\x22\xc6\x5a"
      "\x49\xb6\x5c\x2a\xf2\x53\x51\x2a\x47\xc4\x64\x44\x54\xd2\x7a\x9b\x11\x9f"
      "\x16\xf9\x97\x44\xd2\x6b\xe7\xf3\x93\x9f\x07\x00\x00\x00\xfc\x5f\x26\xf7"
      "\x6e\x26\x93\xfd\x2a\xe7\x9f\x86\x2f\x3c\x8d\x9d\xd8\x88\xf3\xc5\xee\x66"
      "\x92\x7d\xe6\xbf\x92\xd5\x98\x8c\x0f\x62\x25\xd6\x63\x39\xd6\xa3\x11\x4b"
      "\x71\x37\x6f\x95\x7e\xea\x2f\x6d\x6f\xcd\x35\xb6\xb7\xe6\x1e\xa6\x4b\x77"
      "\xf7\x3f\xf9\x62\xa4\xa9\x67\x3d\x46\xeb\xbb\x87\xde\x23\x7f\x2b\xab\x51"
      "\x8d\x7b\xb1\x9c\xed\xb9\x1e\x77\x22\x89\x66\xa6\x54\x04\x60\x7b\x6b\x2e"
      "\x4d\x1f\xf6\x9e\xd7\x87\xe9\x9c\x92\xb7\x72\x7d\x66\x33\xd6\x91\xbf\x9b"
      "\xae\xae\x7e\x12\xf1\x56\xc4\x9f\xf6\x7e\x8b\x50\x1e\xe9\x25\x1e\x52\xe9"
      "\xc0\x92\xa9\xac\x74\xbc\x1d\x91\x5a\x3e\xb7\xb4\xc5\xc5\x22\x02\xbd\x23"
      "\x31\xf0\xe8\x94\xfb\x8e\x34\x1b\xa5\xf6\x37\x3f\x97\xfa\x8f\xd4\x3b\xe6"
      "\x1f\xf6\x1f\xfd\xdc\xbe\x5a\x3d\xbf\xb9\x39\x15\xfb\x23\x71\x33\x4a\xed"
      "\x23\x74\xa5\x7f\x24\x22\xbe\xfb\xf7\x67\xbf\xba\xdf\x58\x79\x70\xff\xde"
      "\xda\xcc\xd9\x79\x49\x3d\x3d\x1d\x58\x63\x7f\x24\xe6\x3a\x22\x71\xf5\x2b"
      "\x14\x89\xc1\x6a\x59\x24\x2e\xb7\xb7\x17\xe3\xe7\xf1\xcb\x98\x89\x2f\x26"
      "\xde\x89\xd5\x58\x8e\x5f\x47\x3d\xd6\x63\x69\xba\x28\xaf\xe7\x7f\xcf\xe9"
      "\x7a\xaa\x7f\xa4\x3e\x3b\xd7\xb9\xf5\xce\xa0\x99\xa4\xe7\xe4\x74\xfb\xfa"
      "\xd5\x6b\x4e\xd3\xb1\x67\x4e\x31\x1d\x3f\xcb\x72\xf5\x78\x23\x3b\xa6\xe7"
      "\x63\x39\x92\x78\x14\x11\x4b\x71\x2b\x6e\xc5\x44\xdc\x8c\xd9\xf6\xd5\x60"
      "\xf7\x08\x5f\x1e\xe2\xac\x2f\x0d\x71\xa5\xed\x70\xed\x7b\x59\xd2\x0e\x53"
      "\x54\x0f\xae\xfb\xd7\xe1\xba\x3c\x2a\x69\x5c\x2f\x76\xc4\xb5\xf3\x9a\x3b"
      "\x95\x95\x15\x7b\xbe\x19\xb5\x8e\x28\xbd\xd2\x33\x4a\xc5\xbd\x6e\xf8\xfb"
      "\x51\x87\xf2\x77\xf2\x4c\xda\xc3\xef\xfb\xde\x1f\x4e\xda\xde\x48\xb4\xee"
      "\x12\xc5\xec\x5e\x3d\xe8\xef\xa5\x15\xd2\xbf\x34\xd3\xf5\x5a\x63\xe5\xc1"
      "\xea\xfd\xfa\xfb\x43\x8e\xf7\x66\x9e\xa6\xe7\xd1\x1f\xcf\xd4\x5d\x22\x3d"
      "\xc2\xaf\xc4\x64\xfe\xe2\x2e\x66\xeb\x24\x3b\xa7\x6a\x59\xd9\xab\xed\x3b"
      "\xec\xde\x78\x55\xf2\x5f\x5c\x5a\x4a\x5d\x65\x97\xdb\xed\x5a\x67\xea\x2f"
      "\xe2\x51\xdc\xcd\xcf\xd4\x5b\xd9\x99\xfa\xc3\x98\x8f\xf9\x58\xc8\x6a\x5f"
      "\xc9\x6a\x8f\x77\xdd\xb1\xd2\xb2\xab\xed\x9e\xf6\x5e\xc3\xd3\xb2\xf4\x9d"
      "\x56\xb9\xfd\xc3\x4e\xe7\xfb\xad\x47\xd1\x68\xbd\x1f\x02\xe0\x6c\x3b\xf7"
      "\xfd\x73\x95\xea\x7f\xaa\xff\xaa\x7e\x5c\xfd\x43\xf5\x7e\xf5\xed\xc9\x9f"
      "\x4e\xfc\x68\xe2\xb5\x4a\x8c\xff\x73\xfc\xc7\xe5\xda\xd8\x9b\xa5\xd7\x92"
      "\xbf\xc5\xc7\xf1\xdb\xdd\xcf\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xe1\xad\x3d\x7e"
      "\xf2\xa0\xde\x68\x2c\xad\xf6\xce\x94\x7a\x17\x25\xfd\x5b\xd5\x1b\xcd\xe2"
      "\x41\x62\x7d\xea\xec\xc9\x24\xf9\xa3\x72\x86\xa8\x9c\xac\x3d\x7e\xd2\x1c"
      "\xd8\x61\xff\xcc\x44\x3e\xbd\x43\x36\x3f\xca\x4c\xf1\xb4\xc6\xc1\x95\xa7"
      "\x8f\x71\x1a\xc9\xe6\xfe\xe3\x35\x39\xf8\x58\x14\x4f\x79\x1a\x62\x88\xa4"
      "\x2b\xe0\x69\xe3\x43\xcf\xb9\x18\x79\x77\xcf\xf8\x19\x38\x94\xfb\x33\xd3"
      "\x03\xea\x24\x31\x74\x87\xc5\x1f\x6c\x47\xd1\x48\x7f\xbd\x17\xd2\xca\xd5"
      "\x5e\xc7\x6b\x2c\xa2\xe7\x34\x06\x5c\x38\xc6\x8e\xe2\xea\x03\x9c\xa6\x1b"
      "\xeb\x0f\xdf\xbf\xb1\xf6\xf8\xc9\x0f\x96\x1f\xd6\xdf\x5b\x7a\x6f\x69\x65"
      "\x7c\x7e\x7e\xa1\xb6\x30\x7f\x6b\xee\xc6\xbd\xe5\xc6\x52\xad\xb5\xee\x68"
      "\x70\x22\x0f\xbf\x05\x4e\x42\xe7\xdb\x89\xb6\x4a\x44\xbc\x3e\xb8\x6d\x9f"
      "\x07\xb5\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc7\x28\xff\xf7\x7f\xcf"
      "\x8e\xf3\xff\x42\x9c\xf6\x6b\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5e\x6e\x8b\x33\x51\x7e\x1e"
      "\x49\xcc\xd6\xae\xd7\xd2\xed\xed\xad\xb9\x46\xba\x14\xf9\xdd\x9a\xe5\x88"
      "\x28\x45\x44\xf2\x9b\x88\xe4\x1f\x11\xb7\xe3\xe9\x8b\xdb\x69\xc1\x54\x47"
      "\x77\xc9\x41\xe3\x7c\xb4\xbc\xf0\xee\x8b\x2f\xb7\x3f\xdf\xed\xab\x5c\xd4"
      "\x2f\x45\x6c\x1e\xd8\x6e\x38\x9b\xf9\x12\xd3\x11\x31\x96\xa7\x47\xd5\xdf"
      "\x9d\xc1\xfd\x55\x76\xb3\x13\x3d\x8a\x93\x76\x64\xd2\x80\x5d\xcb\x53\x38"
      "\x75\xff\x0b\x00\x00\xff\xff\x6e\xa8\xef\x21",
      1793);
  syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x20000080,
                  /*flags=MS_I_VERSION|MS_NOEXEC|MS_NODEV*/ 0x80000c,
                  /*opts=*/0x20000400, /*chdir=*/2, /*size=*/0x701,
                  /*img=*/0x20001480);
  memcpy((void*)0x20000040, "hugetlb.2MB.usage_in_bytes\000", 27);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul,
                /*flags=*/0x275a, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000240, "#! ", 3);
  *(uint8_t*)0x20000243 = 0xa;
  syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20000240ul, /*len=*/0x208e24bul);
}
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;
}