// https://syzkaller.appspot.com/bug?id=f86606dfb403cc9435c0ed5f17e1d80c110cddef
// 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 (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

void execute_one(void)
{
  memcpy((void*)0x20000000, "hfsplus\000", 8);
  memcpy((void*)0x20000080, "./bus\000", 6);
  memcpy((void*)0x20000100, "umask", 5);
  *(uint8_t*)0x20000105 = 0x3d;
  sprintf((char*)0x20000106, "%023llo", (long long)0xc0);
  *(uint8_t*)0x2000011d = 0x2c;
  memcpy((void*)0x2000011e, "part", 4);
  *(uint8_t*)0x20000122 = 0x3d;
  sprintf((char*)0x20000123, "0x%016llx", (long long)0xff);
  *(uint8_t*)0x20000135 = 0x2c;
  memcpy((void*)0x20000136, "nodecompose", 11);
  *(uint8_t*)0x20000141 = 0x2c;
  memcpy((void*)0x20000142, "nobarrier", 9);
  *(uint8_t*)0x2000014b = 0x2c;
  memcpy((void*)0x2000014c, "nodecompose", 11);
  *(uint8_t*)0x20000157 = 0x2c;
  memcpy((void*)0x20000158, "nobarrier", 9);
  *(uint8_t*)0x20000161 = 0x2c;
  memcpy((void*)0x20000162, "umask", 5);
  *(uint8_t*)0x20000167 = 0x3d;
  sprintf((char*)0x20000168, "%023llo", (long long)0xfc17);
  *(uint8_t*)0x2000017f = 0x2c;
  memcpy((void*)0x20000180, "decompose", 9);
  *(uint8_t*)0x20000189 = 0x2c;
  memcpy((void*)0x2000018a, "nls", 3);
  *(uint8_t*)0x2000018d = 0x3d;
  memcpy((void*)0x2000018e, "cp1255", 6);
  *(uint8_t*)0x20000194 = 0x2c;
  memcpy((void*)0x20000195, "umask", 5);
  *(uint8_t*)0x2000019a = 0x3d;
  sprintf((char*)0x2000019b, "%023llo", (long long)0xfffffffffffffeff);
  *(uint8_t*)0x200001b2 = 0x2c;
  memcpy((void*)0x200001b3, "nodecompose", 11);
  *(uint8_t*)0x200001be = 0x2c;
  *(uint8_t*)0x200001bf = 0;
  memcpy(
      (void*)0x200009c0,
      "\x78\x9c\xec\xdd\xcd\x6b\x1c\xe7\x1d\x07\xf0\xef\xac\x57\x1b\xc9\x0d\x8e"
      "\x92\xd8\x89\x29\x81\x0a\x1b\xd2\x52\x51\x5b\x2f\x28\xad\x72\xa9\x5b\x4a"
      "\xd1\x21\x94\x90\x1e\x4a\x8f\xc2\x96\x63\xe1\xb5\x12\x24\xa5\x28\xa1\x14"
      "\xf5\xfd\x54\xe8\x21\x7f\x40\x5a\xd0\xad\xa7\x42\xef\x2e\xee\xb9\xbd\xe5"
      "\xaa\x63\xa0\xd0\x43\x72\xd2\xcd\x65\x66\x67\xa5\x95\xb4\x52\x64\x59\xd6"
      "\x4a\xed\xe7\x63\x46\xcf\x33\xf3\xcc\x3c\xf3\x9b\xdf\xbc\xed\xec\x7a\xd9"
      "\x00\xff\xb7\xe6\xc6\xd3\x7c\x98\x22\x73\xe3\x6f\xad\x95\xe3\x9b\x1b\xd3"
      "\xed\xcd\x8d\xe9\xe7\xea\xe6\x76\x92\xb2\xde\x48\x9a\x9d\x22\xc5\x52\x52"
      "\x3c\x4a\x6e\x95\xed\x45\xcf\x90\x9e\x72\x9f\x8f\x17\x67\xdf\xf9\xf4\x8b"
      "\xcd\xcf\x92\xa1\x74\xfa\x6a\x76\xe7\x6f\x1c\xb6\xdc\xd1\xac\xd7\x43\xc6"
      "\x92\x5c\xa8\xcb\xfd\x86\x8e\xda\xdf\x37\x3f\xef\xe9\xef\x76\x92\xe7\xf7"
      "\xcd\xd2\x3a\x6a\x5f\xbb\x66\x2c\x93\x76\xbd\x2e\x61\xe0\x1e\xef\xb3\xfe"
      "\x24\x8b\x3f\xe5\x79\x0b\x0c\x52\xf7\xee\x54\x74\xee\x9b\xfb\x8c\x26\x17"
      "\x93\x7c\xfe\xd3\xce\xeb\x80\xd4\x57\x87\xc6\xe9\x45\xf8\x6c\x3c\xd1\x55"
      "\x0e\x00\x00\x00\xce\xa9\x17\xb6\xb2\x95\xb5\x5c\x1a\x74\x1c\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x70\x9e\xd4\xbf\xff\x5f\xd4\x43\xa3\x2e\x33\x96"
      "\xe2\x62\x92\xe1\x24\xad\xee\xb4\xba\x7e\xae\x3d\x1c\x74\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x70\x02\xbe\xb6\x95\xad\xac\xe5\x52\x77\xfc\x71\x51\x7d"
      "\xe6\x7f\x2d\x19\x4a\x2e\x57\x93\xbe\x92\x0f\xb2\x92\x85\x2c\xe7\x46\xd6"
      "\x32\x9f\xd5\xac\x66\x39\x93\x49\x46\x7b\x3a\x6a\xad\xcd\xaf\xae\x2e\x4f"
      "\x96\x4b\xe6\xf0\x25\xa7\xfa\x2e\x39\x75\x5a\x5b\x0c\x00\x00\x00\x00\x00"
      "\x00\x00\xff\x93\x7e\x95\xb9\x9d\xcf\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\x28\x92\x0b\x9d\xa2\x1a\x2e\x77\xeb\xa3\x69\x34\x93"
      "\x0c\x27\x69\x95\xf3\xad\x27\xff\xea\xd6\xcf\x89\xa2\xdf\xc4\x87\xa7\x1f"
      "\x07\x00\x00\x00\x3c\x95\xe1\x63\x2c\xf3\xc2\x56\xb6\xb2\x96\x4b\xdd\xf1"
      "\xc7\x45\xf5\xcc\xff\x4a\xf5\xbc\x3c\x9c\x0f\xb2\x94\xd5\x2c\x66\x35\xed"
      "\x2c\xe4\x4e\xfd\x0c\x5d\x3e\xf5\x37\x36\x37\xa6\xdb\x9b\x1b\xd3\x0f\xca"
      "\x61\x7f\xbf\xdf\xfb\xcf\x13\x85\x51\xf5\x98\xce\x7b\x0f\xfd\xd7\x7c\xb5"
      "\x9a\x63\x24\x77\xb3\x58\x4d\xb9\x91\xdb\x55\x30\x77\xd2\xa8\x96\x2c\x5d"
      "\xed\xc6\xd3\x3f\xae\x5f\x96\x31\x15\xdf\xad\x1d\x31\xb2\x66\x5d\x96\x2b"
      "\xfb\xe3\x41\xef\x22\x0c\xc4\x68\x1d\x5c\x37\x23\x13\x75\x6c\x65\x36\x5e"
      "\xec\x64\xa0\xa8\xde\xa8\x49\xf6\x66\xe2\x4b\xf7\x4e\x73\xef\x9a\xd2\xc8"
      "\xd0\xf6\x9a\x26\xd3\xd8\x7e\xe7\xe7\xf2\x33\xc8\xf9\xc5\xba\x2c\xb7\xe7"
      "\x77\x67\x2d\xe7\x9d\x4c\x34\x52\x65\x62\xaa\xe7\xe8\x7b\xe5\xf0\x4c\x24"
      "\x5f\xff\xdb\x5f\x7e\x72\xaf\xbd\x74\xff\xde\xdd\x95\xf1\xb3\xb3\x49\xc7"
      "\xb4\xf7\x98\x98\xee\xc9\xc4\xab\xe7\x3a\x13\xcd\x27\x9c\x7f\xa2\xca\xc4"
      "\x95\xed\xf1\xb9\xfc\x30\x3f\xce\x78\xc6\xf2\x76\x96\xb3\x98\x9f\x65\x3e"
      "\xab\x59\xc8\xe3\xba\x7d\xbe\x3e\x9e\xcb\xbf\xa3\x87\x67\xea\xd6\xae\xb1"
      "\xb7\xbf\x2c\x92\x56\xbd\x5f\x3a\x57\xd1\xa3\xc4\x34\x96\x1f\x54\xb5\xf9"
      "\x5c\xab\x96\xbd\x94\xc5\x14\x79\x2f\x77\xb2\x90\x37\xaa\x7f\x53\x99\xcc"
      "\xb7\x33\x93\x99\xcc\xf6\xec\xe1\x2b\x07\xc6\x5d\x6d\x5b\x75\xd6\x37\x0e"
      "\x3a\xeb\xff\xde\x37\xf8\xeb\xdf\xa8\x2b\x23\x49\x7e\x5f\x97\x83\xd6\xb9"
      "\xa5\x96\x79\x7d\xb1\x27\xaf\x43\x3d\xd7\xdc\x54\x6d\xbd\x53\x76\xb2\xf4"
      "\x52\x37\x3b\x43\x7d\x3b\x3f\xce\xb5\xb1\xf9\xd5\xba\x52\xae\xe3\xd7\x75"
      "\x79\x36\x8c\xee\xc9\xc4\x64\x4f\x26\x5e\x3e\xfc\x38\xff\x53\x75\x6e\xac"
      "\xb4\x97\xee\x2f\xdf\x9b\x7f\xff\x80\xfe\xd7\xf7\x8c\xbf\x5e\x97\xe5\x11"
      "\xf7\xdb\x23\xdf\x25\xfa\xef\x8a\x93\x55\x1e\x2f\x2f\x65\xb8\xbe\x92\xec"
      "\x3e\x3a\xca\xb6\x97\xb7\xaf\x32\xbb\xf3\xd5\xaa\x3f\x71\xe9\xb4\x35\xf6"
      "\xb5\x5d\xa9\xda\x8a\xa2\x7b\xa6\xfe\xe8\xc0\x33\xb5\x55\xbf\x86\xdb\xdf"
      "\xd3\x54\xd5\xf6\x6a\xdf\xb6\xe9\xaa\xed\x6a\x4f\xdb\xae\xd7\x5b\x79\x2f"
      "\xed\xdc\x39\x85\xfc\x01\xf0\x94\x46\x73\xb1\x35\xf2\xef\x91\x7f\x8e\x7c"
      "\x32\xf2\x9b\x91\x7b\x23\x6f\x0d\x7f\xff\xb9\xef\x3c\xf7\x5a\x2b\x43\xff"
      "\x18\x7a\xb3\x39\x71\xe1\xf5\xc6\x6b\xc5\x5f\xf3\x49\x7e\xb1\xf3\xfc\x0f"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x1c\xdf\xca\x87\x1f\xdd\x9f\x6f\xb7\x17\x96\xfb\x57"
      "\x1a\x07\x37\x9d\x6c\xa5\xa8\x7f\xc8\xe7\x34\xd6\x75\x1a\x95\xe1\x24\x27"
      "\xd2\xe1\xe4\x9b\x9d\x1d\x75\x46\xb6\xeb\x64\x2a\xdd\x1f\x11\xec\x3f\xcf"
      "\x1f\x8e\xde\xe1\xad\x33\xb1\x39\xe7\xba\x72\x21\x49\xbf\xa6\x41\x5e\x95"
      "\x80\xd3\x70\x73\xf5\xc1\xfb\x37\x57\x3e\xfc\xe8\x5b\x8b\x0f\xe6\xdf\x5d"
      "\x78\x77\x61\x69\x68\x66\x66\x76\x62\x76\xe6\x8d\xe9\x9b\x77\x17\xdb\x0b"
      "\x13\x9d\xbf\x83\x8e\x12\x78\x16\x76\x6e\xfa\x83\x8e\x04\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x38\xaa\x7e\x5f\x0c\xb8\xf6\xfc\x49\x7c\x77\xa5\xe5"
      "\x7f\x16\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x27\x62\x6e\x3c\xcd\x87\x29\x32\x39\x71\x63\xa2"
      "\x1c\xdf\xdc\x98\x6e\x97\x43\xb7\xbe\x33\x67\x33\x49\xa3\x91\x14\x3f\x4f"
      "\x8a\x47\xc9\xad\x74\x86\x8c\xf6\x74\x57\xe4\xcf\x8f\xfa\xae\xe7\xe3\xc5"
      "\xd9\x77\x3e\xfd\x62\xf3\xb3\x9d\xbe\x9a\x9d\xf9\x93\x46\x5d\x3e\x85\xf5"
      "\x7a\xc8\x58\x92\x0b\x75\x79\x52\xfd\xdd\x3e\x56\x7f\xc3\x3d\xf5\x62\x7b"
      "\x0b\xcb\x84\x5d\xef\x26\x0e\x06\xed\xbf\x01\x00\x00\xff\xff\x50\x0d\xf7"
      "\x9c",
      1639);
  syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x20000080, /*flags=MS_NOSUID*/ 2,
                  /*opts=*/0x20000100, /*chdir=*/5, /*size=*/0x667,
                  /*img=*/0x200009c0);
  memcpy((void*)0x200000c0, "./file1\000", 8);
  syscall(__NR_creat, /*file=*/0x200000c0ul,
          /*mode=S_IWOTH|S_IROTH|S_IWGRP*/ 0x16ul);
}
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);
  loop();
  return 0;
}