// https://syzkaller.appspot.com/bug?id=7f2b04224d8470e667907e7d11f918ad76c6d107
// 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_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_memfd_create
#define __NR_memfd_create 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#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;
}

static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

//% 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 (;;) {
      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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000200, "hfsplus\000", 8);
  memcpy((void*)0x20000080, "./file1\000", 8);
  memcpy((void*)0x20000000, "nobarrier", 9);
  *(uint8_t*)0x20000009 = 0x2c;
  memcpy((void*)0x2000000a, "barrier", 7);
  *(uint8_t*)0x20000011 = 0x2c;
  memcpy((void*)0x20000012, "nobarrier", 9);
  *(uint8_t*)0x2000001b = 0x2c;
  memcpy((void*)0x2000001c, "uid", 3);
  *(uint8_t*)0x2000001f = 0x3d;
  sprintf((char*)0x20000020, "0x%016llx", (long long)0);
  *(uint8_t*)0x20000032 = 0x2c;
  memcpy((void*)0x20000033, "nls", 3);
  *(uint8_t*)0x20000036 = 0x3d;
  memcpy((void*)0x20000037, "ascii", 5);
  *(uint8_t*)0x2000003c = 0x2c;
  *(uint8_t*)0x2000003d = 0;
  memcpy(
      (void*)0x200007c0,
      "\x78\x9c\xec\xdd\x4f\x6c\x1c\x67\xdd\x07\xf0\xef\x6c\xec\x4d\x36\xaf\xe4"
      "\x38\x6d\xd2\xe6\x45\x48\xb5\x1a\x29\x82\x46\x24\xb6\x97\x92\x20\x21\x11"
      "\x10\x02\x1f\x2a\x14\x89\x4b\xaf\x56\xe2\x34\x56\x36\x6e\x65\xbb\xc8\x89"
      "\x10\x31\x7f\x0a\x47\x38\xa1\x1e\x7a\x28\x42\xe1\xd0\x13\xe2\x80\x54\xc4"
      "\x01\x51\xce\x48\x48\xdc\x73\x8f\xc4\x3d\x17\x58\x34\xbb\xb3\xf6\xda\xeb"
      "\x2c\x76\x62\x67\x9d\xf0\xf9\x48\xb3\xf3\xcc\x3c\xf3\x3c\xcf\x6f\x7e\x9e"
      "\x79\x76\x77\xa2\x68\x03\xfc\xcf\x9a\x7b\x3b\xe3\xeb\x29\x32\x77\xfe\xad"
      "\xb5\x72\xfb\xc1\xfd\x66\xeb\xc1\xfd\xe6\xed\x5e\x39\xc9\xd1\x24\xb5\x64"
      "\xac\xbb\x4a\xb1\x94\x14\x9f\x25\x57\xd2\x5d\xf2\xff\xe5\xce\xaa\xbb\xe2"
      "\x71\xe3\xbc\xf9\xf0\xd3\x8f\xce\x7d\xf8\x49\xb3\xbb\x35\x56\x2d\x9d\xe3"
      "\x6b\xc3\xda\x0d\xd8\xf1\xc8\xf5\x6a\xc9\x54\x92\x23\xd5\xfa\x29\x6c\xe9"
      "\xef\xda\x0e\xfd\xdd\xdb\x53\x77\xc5\x46\xdc\x65\xc2\xce\xf6\x12\x07\xa3"
      "\xd6\x1e\xb0\xbe\x97\xe6\xbb\xbf\x6f\x81\x43\xeb\x5e\xf7\x7d\x73\xc0\x64"
      "\x72\x3c\xc9\xb1\xea\x73\x40\xaa\xd9\xa1\xf6\x6c\xa3\xdb\x7f\x7b\x9a\xe5"
      "\x00\x00\x00\xe0\x10\x68\x9f\x18\xd8\xb5\xe3\x77\xf9\x7e\x27\x1e\xe5\x51"
      "\xd6\x32\x71\x50\x31\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\xc0\x8b\xa8\xe8"
      "\xfe\x66\x60\x51\x2d\xb5\x5e\x79\x2a\x45\xef\xf7\xff\xeb\xd5\xbe\x54\xe5"
      "\xe7\xd8\x07\x37\x46\x1d\x01\x00\x00\x00\x00\x00\x00\x00\xec\x87\xd7\x1e"
      "\xe5\x51\xd6\x32\xd1\xdb\x6e\x17\x9d\x7f\xf3\x7f\xbd\xb3\x71\xaa\xf3\xfa"
      "\x7f\x79\x3f\x2b\x59\xc8\x72\x2e\x64\x2d\xf3\x59\xcd\x6a\x96\x33\x93\x8c"
      "\x4f\xf4\x75\x54\x5f\x9b\x5f\x5d\x5d\x9e\x19\x6c\xf9\xab\x94\x2d\xdb\xed"
      "\xf6\xbd\xaa\xe5\x6c\x92\xc9\x81\x96\xb3\xcf\xe6\x7c\x01\x00\x00\x00\x00"
      "\x00\x00\xe0\x05\xf5\xe3\xcc\x65\x62\xd4\x41\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x40\xbf\x22\x39\xd2\x5d\x75\x96\x53\xbd\xf2\x64\x6a\x63"
      "\x49\x8e\x25\xa9\x97\xc7\xad\x27\x7f\xea\x95\x9f\x67\x7f\x1e\x75\x00\x00"
      "\x00\x00\x70\xf0\x1a\xd5\x7a\xa2\xf8\x77\xb7\xd0\x2e\x3a\xdf\xf9\x5f\xe9"
      "\x7c\xef\x3f\x96\xf7\xb3\x94\xd5\x2c\x66\x35\xad\x2c\xe4\x7a\xe7\x59\x40"
      "\xf7\x5b\x7f\xed\xef\xeb\xcd\xd6\x83\xfb\xcd\xdb\xe5\x32\xd8\xf1\x37\xfe"
      "\xb9\xa7\x38\x3a\x3d\xa6\xfb\xec\x61\xe7\x91\xa7\x3b\x47\x9c\xde\x68\x31"
      "\x97\x6f\xe7\x7b\x39\x9f\xa9\x5c\xcd\x72\x16\xf3\xfd\xcc\x67\x35\x0b\x99"
      "\xca\xb7\xca\x93\xc8\x7c\x8a\x4c\x56\x4f\x2f\x26\x7b\x71\xee\x1c\xef\x95"
      "\x2d\x5b\x57\xb7\xc7\xf6\xda\xb6\xed\x33\x9d\x48\x1a\xb9\x91\xc5\x4e\x6c"
      "\x17\x72\xad\xde\x0b\xbd\x56\xc5\x7f\xa6\x6f\xb4\x3f\xd4\x93\x6d\x23\xfe"
      "\xa8\xcc\x4e\xf1\xf5\xca\x2e\x73\x74\xbd\x5a\x97\x67\xf4\xcb\x6a\x5d\x69"
      "\x9f\xd8\x65\x1f\x07\x63\xb2\x73\xe6\xe3\x1b\x19\x99\xae\x72\x5f\x66\xe3"
      "\xe4\xf0\xdc\xef\xf1\x3a\xd9\x3e\xd2\x4c\x6a\x1b\xcf\xa0\x4e\x6d\x8e\x52"
      "\x6e\x6e\x1f\xe9\x89\x72\x7e\xbc\x5a\x97\xb9\xfe\xd9\xd6\x9c\xef\xb7\x3d"
      "\x3e\x4a\xdb\x9e\x89\xd9\xd4\xaa\xab\x2f\x79\x65\x78\xce\x93\x2f\xfe\xe3"
      "\x2f\x57\x6f\xd6\x96\x6e\xdd\xbc\xb1\x72\xfe\x00\x4f\xe9\xd9\xd8\x9e\x89"
      "\x66\x5f\x26\x5e\xdd\x55\x26\x5a\x65\x26\xd6\x77\x9f\x89\xf1\xed\x3b\x8e"
      "\x3d\xed\x39\xec\x8f\x7a\x95\x8d\xee\x2c\xba\xdb\xd9\xb2\x2c\xcd\xe7\xf5"
      "\x4e\xdb\x89\x7f\xb5\xf3\xdd\xbc\x9b\xeb\x59\xc8\xa5\x4c\x67\x26\x97\x33"
      "\x9d\xaf\x66\x36\xcd\x2d\x57\xd8\xe9\xe1\x79\xed\xdc\x6b\xb5\xbd\xdd\x6b"
      "\x67\xbf\x50\x15\xca\xf7\xa4\x9f\xf7\xbd\x37\x8d\x5e\x99\xd7\x93\x7d\x79"
      "\xed\x9f\xe9\x26\x3b\x75\xd5\x9e\x2b\xbf\xc8\x74\x5f\x96\x5e\xda\x45\x96"
      "\xf6\x38\x23\x8d\x7d\xae\x2a\x94\x63\xfc\x64\xe3\x1d\xe7\x30\xd8\x92\x89"
      "\x6a\x6e\xee\x45\xf7\xf2\xf0\x4c\xfc\xba\x5d\xbe\xae\xb4\x96\x6e\x2d\xdf"
      "\x9c\x7f\x6f\x97\xe3\x9d\xab\xd6\xe5\x6d\xfb\xc1\xd6\xb9\xf9\x37\xfb\x71"
      "\x3e\x4f\xae\xbc\x5e\x5e\x2a\xff\x58\x9d\xad\x93\x5b\xae\x97\xb2\xee\xe5"
      "\x1d\xeb\x66\x3a\x75\xa7\x36\xea\x6a\x03\x75\xa7\x37\xea\x26\x33\x91\xc5"
      "\x21\x77\x6a\xbd\xfa\x0c\x37\xd8\x53\xb7\xee\xd5\x1d\xeb\x9a\x9d\xba\x33"
      "\x7d\x75\x5b\x3e\xe5\xe4\xdd\xb4\x36\x3e\x85\x00\x70\x88\x1d\x7f\xe3\x78"
      "\xbd\xf1\xb0\xf1\xb7\xc6\xc7\x8d\x9f\x36\x6e\x36\xde\x3a\xf6\xcd\xa3\x97"
      "\x8f\x7e\xbe\x9e\xf1\xbf\x8e\xfd\xf1\xc8\xef\x6a\xbf\xad\x7d\xad\x78\x23"
      "\x1f\xe7\x87\x99\x18\x75\xa4\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf0\x22\x58\xb9\x73\xf7"
      "\xd6\x7c\xab\xb5\xb0\xfc\x74\x85\xc6\x3e\xf5\xb3\xa5\x90\xda\xe6\x9e\xde"
      "\xcf\x24\xed\xf3\x10\x9b\x63\x15\x55\xa1\xbe\xdf\x3d\xbf\x60\x85\xef\x24"
      "\x79\xd2\xe6\xbf\x4f\x32\xe4\x98\xfa\x53\x47\x58\xec\xd7\xf5\xfc\xf8\x42"
      "\x79\x11\x1e\x96\xbf\xc5\xce\x85\xb1\x21\x49\x38\x9a\xa1\xcd\x1b\x7d\xf7"
      "\xd7\x68\xe7\x25\xe0\xe0\x5d\x5c\xbd\xfd\xde\xc5\x95\x3b\x77\xbf\xb4\x78"
      "\x7b\xfe\x9d\x85\x77\x16\x96\x66\x2f\x5f\xba\x7c\xa9\xf9\x95\x99\x2f\x5f"
      "\xbc\xb1\xd8\x5a\x98\xee\xbe\x8e\x3a\x4a\xe0\x20\xac\xdc\xb9\x7b\x64\xd4"
      "\x31\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x7b\x73\xe0\xff\x1b\xa1\xbe"
      "\xbc\x32\xea\x73\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\x9e\x6f\x73\x6f\x67\x7c\x3d\x45\x66\xa6"
      "\x2f\x4c\x97\xdb\x0f\xee\x37\x5b\xe5\xd2\x2b\x6f\x1e\x39\x96\xa4\x96\xa4"
      "\xf8\x41\x52\x7c\x96\x5c\x49\x77\xc9\x64\x5f\x77\xc5\xe3\xc6\x79\xf3\xe1"
      "\xa7\x1f\x9d\xfb\xf0\x93\xe6\x66\x5f\x63\xbd\xe3\x6b\xc3\xda\xed\xce\x7a"
      "\xb5\x64\x2a\xc9\x91\x6a\xfd\xdf\x1d\xdd\xa1\x9b\xc1\xfe\xae\xf5\xf5\xb7"
      "\xfe\x44\xe1\x15\x1b\x67\x58\x26\xec\x6c\x2f\x71\x30\x6a\xff\x09\x00\x00"
      "\xff\xff\x97\x67\x01\x73",
      1680);
  syz_mount_image(/*fs=*/0x20000200, /*dir=*/0x20000080,
                  /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_MANDLOCK*/ 0x2000050,
                  /*opts=*/0x20000000, /*chdir=*/0, /*size=*/0x690,
                  /*img=*/0x200007c0);
  memcpy((void*)0x20000000, "/dev/loop#\000", 11);
  res = -1;
  res = syz_open_dev(/*dev=*/0x20000000, /*id=*/4, /*flags=*/0);
  if (res != -1)
    r[0] = res;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4c09, /*arg=*/0x1000ul);
}
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);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}