// 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");
  } else if (strncmp(fs, "gfs2", 4) == 0 &&
             (strstr(opts, "errors=panic") || strstr(opts, "debug"))) {
    strcat(opts, ",errors=withdraw");
  }
  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)) {
  }
  //  syz_mount_image$hfsplus arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 70 6c 75 73 00} (length 0x8)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x2000010 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x6e6 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x6e6)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000180, "hfsplus\000", 8);
  memcpy((void*)0x200000002900, "./file1\000", 8);
  memcpy(
      (void*)0x200000000d80,
      "\x78\x9c\xec\xdd\xcf\x6f\x1c\x67\xfd\x07\xf0\xf7\xac\xd7\x8e\x37\xdf\x2a"
      "\x5f\xa7\x4d\x68\x84\x82\x30\x89\x54\x90\x22\x12\x27\x56\x0a\xe1\x82\x41"
      "\x08\xe5\x50\xa1\xaa\x1c\x38\x5b\x89\xd3\x58\xd9\x24\x55\xe2\x22\xb7\x42"
      "\xe0\x02\x82\x13\x12\x87\xfe\x01\x05\xc9\x37\x0e\x08\x89\x7b\x50\x38\x97"
      "\x5b\xaf\x3e\x56\x42\xe2\x12\x71\x88\x7a\x59\x34\xb3\xb3\xf6\xee\x7a\xfd"
      "\x2b\xf1\x8f\x04\x5e\xaf\x68\x3c\xcf\x33\xcf\x8f\x79\xf6\x33\xcf\xcc\x78"
      "\xd7\x59\x4d\x80\xff\x59\xd7\x2f\xa4\xf9\x28\x45\xae\x5f\x78\x6b\xb9\xcc"
      "\xaf\xad\xce\xb6\xd7\x56\x67\x8f\xd5\xc5\xed\x24\x65\xba\x91\x34\xbb\xab"
      "\x14\xf7\x92\xe2\x71\x32\x57\x96\x17\x7d\x4b\xfa\xd6\x9b\x7c\xbc\x78\xed"
      "\x9d\xcf\x9e\xac\x7d\xde\xcd\x35\xeb\xa5\xaa\x3f\xb6\x5d\xbb\x11\x46\xd4"
      "\x5d\xa9\x97\x4c\xd7\xfd\x4d\x8f\x6c\x39\xbe\xdb\x5d\xac\xd4\xc3\xcb\x2b"
      "\x49\x6e\xd4\xeb\x41\x13\xbb\xed\x6b\xa0\x62\x19\xb4\xf3\xf5\x1a\x8e\x5c"
      "\x67\x50\x23\x9d\x95\xbd\x34\xdf\xcb\x79\x0b\xbc\x60\x7a\x77\xa7\xa2\x7b"
      "\xdf\xdc\x64\x2a\x39\x9e\x64\x72\x68\x73\xe3\xe0\x47\x76\x20\xbe\xd6\x4b"
      "\xec\xe9\x2a\x07\x00\x00\x00\x2f\xa9\x4f\xef\x1f\xf5\x08\x00\x00\x00\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\xe5\x53\x3d\xff\xbf\xb5\x9e\x6d\x74\x37\x25\xd3"
      "\x29\x7a\xcf\xff\x9f\xe8\x6d\xab\xd3\x2f\xa0\xb9\x5d\xd7\x7c\x74\xa0\xe3"
      "\x00\x00\x00\x00\x00\x00\x00\x80\xc3\xf1\xd5\xa7\x79\x9a\xe5\x9c\xe8\xe5"
      "\x3b\x45\xf5\x37\xff\x73\x55\xe6\x54\xbe\xe8\x24\xff\x97\xf7\xf3\x30\x0b"
      "\x79\x90\x8b\x59\xce\x7c\x96\xb2\x94\x07\xb9\x9c\x64\xaa\xaf\xa3\x89\xe5"
      "\xf9\xa5\xa5\x07\x97\xd7\x5b\x96\x46\xb7\xbc\x32\xb2\xe5\x95\xc3\x7a\xc5"
      "\x00\x00\x00\x00\x00\x00\x00\xf0\x5f\xe9\x97\x69\x6d\xfc\xfd\x1f\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5e\x04\x45\x32\xd6\x5d\x55\xcb\xa9"
      "\x7a\x9d\xa9\x34\x9a\xd9\x28\xcb\x4a\xf2\x8f\x24\x13\x47\x3d\xde\x3d\x28"
      "\x46\x6d\x7c\x74\xf8\xe3\x00\x00\x00\x80\xe7\x32\xf9\x0c\x6d\xfe\xff\x69"
      "\x9e\x66\x39\x27\x7a\xf9\x4e\x51\xbd\xe7\xff\x52\xf5\x7e\x79\x32\xef\xe7"
      "\x5e\x96\xb2\x98\xa5\xb4\xb3\x90\x9b\xf5\x7b\xe8\xf2\x5d\x7f\x63\x6d\x75"
      "\xb6\xbd\xb6\x3a\x7b\xb7\x5c\xca\xfc\x60\xbf\xdf\xfb\xd7\x9e\x86\x31\x51"
      "\xf7\x30\x56\xe5\x46\xed\xf9\x4c\x55\xa3\x95\x5b\x59\xac\xb6\x5c\xcc\x8d"
      "\x6a\x30\x37\xd3\xe8\xee\xfb\x7c\x72\xa6\x37\x9e\xbe\x71\xf5\xf9\xa8\x1c"
      "\x53\xf1\xdd\xda\x2e\x47\xd6\xac\xc3\x5a\xee\xec\xf7\x5b\x7d\x8a\xb0\x2f"
      "\x06\x3f\x8a\x68\x6c\x53\xb3\xb5\x31\xb8\x64\x3d\x22\x33\xf5\xd8\xca\x96"
      "\x27\xbb\x11\x28\xaa\x0f\x6a\x92\xe1\x48\x0c\x1f\x9d\x4d\x3b\x6b\x0e\xe4"
      "\xa6\xaa\x2a\xe3\xeb\x7b\xba\x9c\xc6\xfa\x27\x3f\xa7\x0e\x20\xe6\xc7\xeb"
      "\x75\xf9\x7a\x7e\x73\xa0\x31\xdf\x8d\xfe\x58\xac\x47\xa2\x91\x2a\x12\x57"
      "\x7a\xb3\xaf\x3c\x67\xb6\x8f\x44\xf2\xf5\xbf\xfe\xe9\x27\xb7\xdb\xf7\xee"
      "\xdc\xbe\xf5\xf0\xc2\xd1\xbe\xa4\x3d\x18\xdb\x62\xfb\xf0\x9c\x98\xed\x8b"
      "\xc4\xeb\x2f\x75\x24\x9a\x7b\xac\x3f\x53\x45\xe2\xf4\x7a\xfe\x7a\x7e\x98"
      "\x1f\xe7\x42\xa6\xf3\x76\x1e\x64\x31\x3f\xcd\x7c\x96\xb2\x90\x4e\x5d\x3e"
      "\x5f\xcf\xe7\xf2\xe7\xd4\xf6\x91\x9a\x1b\xc8\xbd\xbd\xd3\x48\x26\xea\xe3"
      "\xd2\x3d\x66\xbb\x19\xd3\x74\x7e\x50\xa5\xe6\x73\xae\x6a\x7b\x22\x8b\x29"
      "\x72\x3f\x37\xb3\x90\x37\xab\x7f\x57\x72\x39\xdf\xca\xd5\x5c\xcd\xb5\xbe"
      "\x23\x7c\x7a\xcb\x71\x57\xaf\xad\x3a\xeb\x1b\xc3\x67\x7d\xef\x48\xff\x6d"
      "\xe4\xe0\xcf\x7f\xa3\x4e\x94\x57\xb7\xdf\x6e\x5c\xe5\xe6\xb6\x7b\xc5\x5b"
      "\xcd\xce\xfd\xd2\xbd\xf6\x97\x71\x3d\xd9\x17\xd7\xee\xac\x7f\xb2\x5e\xeb"
      "\x64\xdf\x79\x30\xd3\x17\xa5\x57\x7b\xd1\x19\x1f\xd9\xf9\xb3\x5c\x1b\x9b"
      "\x5f\xae\x13\xe5\x3e\x7e\xb5\xc3\x7d\xe2\x70\x4d\xd5\x91\x28\x4f\xa0\xde"
      "\x5d\xa2\x37\xba\xd7\xba\x91\x68\x56\xf7\xa2\xcd\xf3\xfc\x0f\x9d\xb2\x5d"
      "\xda\xf7\x3a\x9d\xdb\xf3\xef\x6d\xd1\xff\xca\x50\xfe\x8d\x7a\x5d\x4e\xab"
      "\xd5\xaf\xec\x54\xbb\x67\xf4\xa1\xd8\x5f\xe5\x7c\x79\x35\x93\xf5\x95\x64"
      "\x70\x76\x94\x65\xaf\xad\x5f\x65\xfa\xca\x3a\x1b\x73\xb9\x5b\x36\x78\xc7"
      "\x2d\xdb\x9d\xae\xca\x8a\xa2\x77\xa6\xfe\x28\xf7\xab\x09\xb0\xf9\x4c\x9d"
      "\xa8\x7f\x87\xdb\xdc\xd3\x95\xaa\xec\xf5\xa1\xb2\xb3\xf5\x35\xbc\x2c\x3b"
      "\xd3\x57\x36\xf0\xfb\x56\xee\xa7\x9d\x9b\x87\x10\x3f\x00\x9e\xc5\xb1\x8d"
      "\xe4\x54\x8e\x4f\xb4\xfe\xd9\xfa\xb4\xf5\x49\xeb\xd7\xad\xdb\xad\xb7\x26"
      "\xbf\x7f\xec\xdb\xc7\xce\x4e\x64\xfc\xef\xe3\xdf\x69\xce\x8c\xbd\xd1\x38"
      "\x5b\xfc\x25\x9f\xe4\xe7\x1b\xef\xff\x01\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x67\xf7\xf0"
      "\x83\x0f\xef\xcc\xb7\xdb\x0b\x0f\x46\x27\x1a\x5b\x17\x0d\x24\x5a\xd5\xd3"
      "\x78\xfa\xb7\xec\xd4\xf3\x50\xa2\xa8\x1f\xe8\x33\xaa\xce\x9d\xfa\x29\x05"
      "\x7b\xea\x70\x1f\x13\xc7\xb2\xf7\x56\x93\x65\x38\xfa\xb7\x8c\x0f\xc5\xe7"
      "\x70\x12\xad\xe1\x61\x6c\x4a\x74\x7e\x91\x1c\x7a\x54\x7b\x0f\x11\x1c\x5d"
      "\xe7\x77\x65\xa2\xb9\xab\xc3\x3d\x37\xb0\xe5\xcf\x9b\x3b\xfc\x68\xe7\xf1"
      "\x8c\x65\x68\x1e\xee\xe2\xbc\x38\xc0\x44\x23\x87\xbb\xd3\xb1\x8c\x9e\x00"
      "\x47\x75\x45\x02\x0e\xcb\xa5\xa5\xbb\xef\x5d\x7a\xf8\xc1\x87\xdf\x5c\xbc"
      "\x3b\xff\xee\xc2\xbb\x0b\xf7\xc6\xaf\x5e\xbd\x36\x73\xed\xea\x9b\xb3\x97"
      "\x6e\x2d\xb6\x17\x66\xba\x3f\x8f\x7a\x94\xc0\x41\xd8\xb8\xe9\x1f\xf5\x48"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xdd\x1a\xf5\xc5\x80\x73\xaf\xec"
      "\xf4\xa5\x91\x4d\x89\x46\x92\xe1\xef\x78\xf8\x9f\x85\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\xbe"
      "\xb8\x7e\x21\xcd\x47\x29\x72\x79\xe6\xe2\x4c\x99\x5f\x5b\x9d\x6d\x97\x4b"
      "\x2f\xbd\x51\xb3\x99\xa4\xd1\x48\x8a\x9f\x25\xc5\xe3\x64\x2e\xdd\x25\x53"
      "\x7d\xdd\x15\xf9\xe3\xe3\x74\x46\xec\xe7\xe3\xc5\x6b\xef\x7c\xf6\x64\xed"
      "\xf3\x8d\xbe\x9a\xdd\xfa\x49\xa3\x5e\x6f\x6d\xfb\xd2\x24\x2b\xf5\x92\xe9"
      "\x24\x63\xf5\xfa\x39\x0c\xf4\x77\xe3\xb9\xfb\x2b\xfe\xdd\x7b\x0d\x65\xc0"
      "\xbe\xe8\x74\x3a\x73\xcf\x37\x3e\xd8\x1f\xff\x09\x00\x00\xff\xff\xb4\xe6"
      "\xe9\x3f",
      1766);
  syz_mount_image(/*fs=*/0x200000000180, /*dir=*/0x200000002900,
                  /*flags=MS_LAZYTIME|MS_SYNCHRONOUS*/ 0x2000010,
                  /*opts=*/0x200000000c00, /*chdir=*/1, /*size=*/0x6e6,
                  /*img=*/0x200000000d80);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x42 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000080, "./file1\000", 8);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000080ul,
          /*flags=O_CREAT|O_RDWR*/ 0x42, /*mode=*/0);
  //  truncate arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    len: intptr = 0x3000000 (8 bytes)
  //  ]
  memcpy((void*)0x200000000900, "./file1\000", 8);
  syscall(__NR_truncate, /*file=*/0x200000000900ul, /*len=*/0x3000000ul);
}
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;
}