// https://syzkaller.appspot.com/bug?id=2dc0a7760777197118e32b794d1146a7d84b894a
// 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$hfs arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 00} (length 0x4)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x1000812 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {71 75 69 65 74 2c 63 6f 64 65 70 61 67 65 3d 63
  //          70 38 36 30 2c 69 6f 63 68 61 72 73 65 74 3d 63 70 38 36 31 2c 00
  //          80 8f ea d0 42 bd 35 dc 78 f7 f0 63 33 a5 e7 16 5b 82 71 e4 1a ee
  //          85 e5 9c bb 6c 2d f3 d4 e4 c1 6b 06 c7 3f 2e 3b 34 ac 8d 48 13 c9
  //          c3 d9 ce e1 dd b9 5d 1b bc f5 04 e0 65 b3 74 9a 1c bd 84 1e 68 5a
  //          55 85 98 cf 0d b1 0b 55 88 59 46 e6 78 d0 a7 18 77 03 7a 09 00 00
  //          00 07 00 84 88 79 ef 16 04 ca dc 1f ac a3 aa 22 a5 76 75 0d 55 9c
  //          4e 12 4d 4c b7 29 3e 73 93 b7 72 86 fa 8c 6d c4 49 ed a0 a0 3d 34
  //          23 82 e8 4d 6d 3c 29 ab 95 cc 92 3f be 25 e1 34 d1 c4 21 32 0a 3b
  //          ff aa 17 fc d6 b5 17 8e 32 2c c4 71 33 b3 81 1e 3d 3b c3 49 98 dc
  //          7e d0 29 83 4a d5 91 d9 d5 6c 41 06 3d 8d e2 d5 0a 23 98 e7 3f f2
  //          91 3a 9f e8 e9 54 a4 e4 ca 99 ce b5 73 7e 57 19 3c 5f 47 fd 63 b1
  //          6c 8b 34 f2 56 db ac 0e 5e bd 00 90 78 df 2c b1 ca 01 51 ad 09 1a
  //          db fe e5 12 6d 8a 59 fa 54 38 73 4b c3 e8 cc 7b 7e dc 10 71 6a 0a
  //          9b 71 19 52 cd f9 65 86 e0 6f ba ce 21 dc 04 bd b4 a1 a2 07 2c e5
  //          f7 2c f0 2e 52 56 ff 74 be 5e 07 a5 f8 d6 ec 2f a8 67 b2 a3 53 bf
  //          6e a1 b5 33 37 78 03 80 4a 49 a4 99 d5 1f 1c b7 1e 1c ea 55 15 98
  //          93 9a fe 8f f8 e8 47 23 52 e2 d5 19 3b c8 66 c0 00 00 00 00 00 00
  //          00 00 00 00 00 00} (length 0x18c)
  //        }
  //        union ANYUNION {
  //          ANYRESOCT: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {b0 79 0a 07 e1 e4 71 ae d2 09 03 6f a5 f5 ca 6b
  //          c1 ad 17 03 71 c5 e2 bd 52 cf 99 29 6e 6c dd 08 82 cc 4c 07 5a 7c
  //          4b 8c a0 d7 80 22 16 06 60 db 09 21 9e bb 75 dc 37 49 9a 82 72 c1
  //          48 66 2b 3a fc 12 4f f5 5a 70 52 38 d3 47 a5 a5 4b c2 2f c6 e8 53
  //          9f 02 d1 a1 4d 4d f8 76 89 f2 e3 4e 74 49 a8 43 df 2a 4e 9f be 05
  //          9f 21 02 bb 7e fa 83 db 5e f2 68 95 be 03 38 58 45 60 61 b9 ac 96
  //          5c 95 f1 92 8d e0 5e b8 11 73 16 01} (length 0x8a)
  //        }
  //        union ANYUNION {
  //          ANYRES32: ANYRES32 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRESHEX: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {0a ff d5 ec e6 51 e2 a4 64 8f 9b 27 9d 8d c4 4b
  //          c4 bd 6a cc 0a a0 1a 3a b5 6e 46 9d 3c 33 8a 26 ff 99 6b 57 af be
  //          65 c4 eb 94 f6 fd 4c fb da 2a f6 c8 5c 6e 13 59 55 ca 06 40 54 6a
  //          2a ac 7b b0 24 32 e4 5e 6d 33 31 81 ee 92 1f 9f 26 a8 ef 00 00 00
  //          00 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //          00 00 00 00 00 00 4d e9 f9 1a ea b6 6c c8 b2 19 7d 3c 00 06 83 24
  //          c7 b7 bd} (length 0x81)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x305 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x305)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000180, "hfs\000", 4);
  memcpy((void*)0x2000000000c0, "./file1\000", 8);
  memcpy(
      (void*)0x200000001240,
      "\x71\x75\x69\x65\x74\x2c\x63\x6f\x64\x65\x70\x61\x67\x65\x3d\x63\x70\x38"
      "\x36\x30\x2c\x69\x6f\x63\x68\x61\x72\x73\x65\x74\x3d\x63\x70\x38\x36\x31"
      "\x2c\x00\x80\x8f\xea\xd0\x42\xbd\x35\xdc\x78\xf7\xf0\x63\x33\xa5\xe7\x16"
      "\x5b\x82\x71\xe4\x1a\xee\x85\xe5\x9c\xbb\x6c\x2d\xf3\xd4\xe4\xc1\x6b\x06"
      "\xc7\x3f\x2e\x3b\x34\xac\x8d\x48\x13\xc9\xc3\xd9\xce\xe1\xdd\xb9\x5d\x1b"
      "\xbc\xf5\x04\xe0\x65\xb3\x74\x9a\x1c\xbd\x84\x1e\x68\x5a\x55\x85\x98\xcf"
      "\x0d\xb1\x0b\x55\x88\x59\x46\xe6\x78\xd0\xa7\x18\x77\x03\x7a\x09\x00\x00"
      "\x00\x07\x00\x84\x88\x79\xef\x16\x04\xca\xdc\x1f\xac\xa3\xaa\x22\xa5\x76"
      "\x75\x0d\x55\x9c\x4e\x12\x4d\x4c\xb7\x29\x3e\x73\x93\xb7\x72\x86\xfa\x8c"
      "\x6d\xc4\x49\xed\xa0\xa0\x3d\x34\x23\x82\xe8\x4d\x6d\x3c\x29\xab\x95\xcc"
      "\x92\x3f\xbe\x25\xe1\x34\xd1\xc4\x21\x32\x0a\x3b\xff\xaa\x17\xfc\xd6\xb5"
      "\x17\x8e\x32\x2c\xc4\x71\x33\xb3\x81\x1e\x3d\x3b\xc3\x49\x98\xdc\x7e\xd0"
      "\x29\x83\x4a\xd5\x91\xd9\xd5\x6c\x41\x06\x3d\x8d\xe2\xd5\x0a\x23\x98\xe7"
      "\x3f\xf2\x91\x3a\x9f\xe8\xe9\x54\xa4\xe4\xca\x99\xce\xb5\x73\x7e\x57\x19"
      "\x3c\x5f\x47\xfd\x63\xb1\x6c\x8b\x34\xf2\x56\xdb\xac\x0e\x5e\xbd\x00\x90"
      "\x78\xdf\x2c\xb1\xca\x01\x51\xad\x09\x1a\xdb\xfe\xe5\x12\x6d\x8a\x59\xfa"
      "\x54\x38\x73\x4b\xc3\xe8\xcc\x7b\x7e\xdc\x10\x71\x6a\x0a\x9b\x71\x19\x52"
      "\xcd\xf9\x65\x86\xe0\x6f\xba\xce\x21\xdc\x04\xbd\xb4\xa1\xa2\x07\x2c\xe5"
      "\xf7\x2c\xf0\x2e\x52\x56\xff\x74\xbe\x5e\x07\xa5\xf8\xd6\xec\x2f\xa8\x67"
      "\xb2\xa3\x53\xbf\x6e\xa1\xb5\x33\x37\x78\x03\x80\x4a\x49\xa4\x99\xd5\x1f"
      "\x1c\xb7\x1e\x1c\xea\x55\x15\x98\x93\x9a\xfe\x8f\xf8\xe8\x47\x23\x52\xe2"
      "\xd5\x19\x3b\xc8\x66\xc0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00",
      396);
  sprintf((char*)0x2000000013cc, "%023llo", (long long)-1);
  memcpy(
      (void*)0x2000000013e3,
      "\xb0\x79\x0a\x07\xe1\xe4\x71\xae\xd2\x09\x03\x6f\xa5\xf5\xca\x6b\xc1\xad"
      "\x17\x03\x71\xc5\xe2\xbd\x52\xcf\x99\x29\x6e\x6c\xdd\x08\x82\xcc\x4c\x07"
      "\x5a\x7c\x4b\x8c\xa0\xd7\x80\x22\x16\x06\x60\xdb\x09\x21\x9e\xbb\x75\xdc"
      "\x37\x49\x9a\x82\x72\xc1\x48\x66\x2b\x3a\xfc\x12\x4f\xf5\x5a\x70\x52\x38"
      "\xd3\x47\xa5\xa5\x4b\xc2\x2f\xc6\xe8\x53\x9f\x02\xd1\xa1\x4d\x4d\xf8\x76"
      "\x89\xf2\xe3\x4e\x74\x49\xa8\x43\xdf\x2a\x4e\x9f\xbe\x05\x9f\x21\x02\xbb"
      "\x7e\xfa\x83\xdb\x5e\xf2\x68\x95\xbe\x03\x38\x58\x45\x60\x61\xb9\xac\x96"
      "\x5c\x95\xf1\x92\x8d\xe0\x5e\xb8\x11\x73\x16\x01",
      138);
  *(uint32_t*)0x20000000146d = 0;
  sprintf((char*)0x200000001471, "0x%016llx", (long long)0);
  memcpy((void*)0x200000001483,
         "\x0a\xff\xd5\xec\xe6\x51\xe2\xa4\x64\x8f\x9b\x27\x9d\x8d\xc4\x4b\xc4"
         "\xbd\x6a\xcc\x0a\xa0\x1a\x3a\xb5\x6e\x46\x9d\x3c\x33\x8a\x26\xff\x99"
         "\x6b\x57\xaf\xbe\x65\xc4\xeb\x94\xf6\xfd\x4c\xfb\xda\x2a\xf6\xc8\x5c"
         "\x6e\x13\x59\x55\xca\x06\x40\x54\x6a\x2a\xac\x7b\xb0\x24\x32\xe4\x5e"
         "\x6d\x33\x31\x81\xee\x92\x1f\x9f\x26\xa8\xef\x00\x00\x00\x00\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\x4d\xe9\xf9\x1a\xea\xb6\x6c\xc8\xb2"
         "\x19\x7d\x3c\x00\x06\x83\x24\xc7\xb7\xbd",
         129);
  memcpy(
      (void*)0x200000000340,
      "\x78\x9c\xec\xdd\x4d\x6b\x13\x5b\x1c\xc7\xf1\xdf\x99\xa4\x4d\x7a\x9b\xdb"
      "\x9b\x3e\x5c\x2e\xdc\x65\xb5\xa0\x1b\xd1\xba\x11\x37\x11\xc9\x5b\x10\xc4"
      "\x85\x68\xdb\x08\xc5\x50\x51\x2b\xa8\x1b\x53\x71\x25\xa2\x7b\xf7\xbe\x05"
      "\x5f\x84\x1b\xc5\x37\xa0\x2b\x17\xe2\x0b\x68\x37\x8e\x9c\x33\x0f\xc9\x24"
      "\x93\x99\x34\x24\x1d\x83\xdf\x0f\x88\x93\xc9\xfc\xe7\xfc\xcf\x3c\xfe\x4f"
      "\xa0\x1c\x01\xf8\x63\x5d\x6d\x7e\x79\x77\xf1\x9b\xfd\x67\xa4\x92\x4a\xd2"
      "\xcb\xcb\x92\x27\xa9\x2a\x95\x25\xfd\xab\xff\xaa\x8f\xf6\xf6\x77\xf7\xdb"
      "\xad\x9d\xac\x1d\x95\x5c\x84\x8e\x7c\x19\x05\x91\x66\x60\x9b\xed\xbd\x96"
      "\xfb\xff\x20\xb9\xda\xc6\xb9\x88\x50\xdd\x7e\x2a\xab\xd6\xbb\x0e\xd3\xe1"
      "\xfb\xfe\x95\xaf\x7d\xeb\xbe\x7b\x05\x25\x83\xc2\xb8\xbb\x3f\x85\x27\x55"
      "\xc2\xbb\xd3\x7d\x5f\x3d\xf1\xcc\xb2\x1d\x8c\x19\xd7\x99\x70\x1e\xb3\xc6"
      "\x1c\xea\x50\x8f\xb5\x54\x74\x1e\x00\x80\x62\xd9\xf7\xff\x41\x50\xf8\xdb"
      "\xf7\x7c\x2d\xac\xdf\x3d\x4f\xda\x08\x5f\xfb\xbf\xe5\xfb\x7f\x5c\x87\x45"
      "\x27\x30\x75\x7e\xe6\xb7\x3d\xef\x7f\x37\xca\xf2\x8d\x3d\xbf\xff\xb8\xaf"
      "\xba\xe3\x3d\x37\x84\xb3\xdf\x7b\xd1\x28\x71\x94\x96\xe7\xfa\x3e\xcf\x2b"
      "\x28\x24\x13\x05\xa6\x49\x1f\x55\x76\x87\x7c\x2e\x17\x6f\xe1\xce\x6e\xbb"
      "\x75\x6e\xfb\x5e\x7b\xc7\xd3\x73\x35\x42\x3d\x01\x6b\x71\x0b\x21\x7b\x85"
      "\xe6\x64\xbb\x9e\x32\x36\xcd\x30\x42\xdf\x4d\x6a\x45\x19\xa4\xe5\xcd\xd9"
      "\x3e\x6c\x0e\xc9\x7f\x75\xcc\x16\x33\x0c\x0c\xdf\x12\x27\xc4\x7c\x30\x9f"
      "\xcc\x4d\x53\xd7\x5b\xed\xc4\xf5\x5f\xd9\x37\x36\x5b\x97\x70\xbd\xef\x4c"
      "\x05\xf9\x9f\x1f\xde\xde\xa2\x8b\xb2\x5b\x29\x7c\x6c\x34\x1a\x0d\xcf\xed"
      "\x28\xb2\xec\x1a\xf9\x3f\x79\xa6\x72\x7a\x59\x4d\x1f\x91\x28\x3a\xb0\xcb"
      "\x4a\xfe\x40\x50\xcf\xcb\xd3\x45\xad\xf4\x45\x05\xbd\xbb\x90\x1a\x50\x89"
      "\xa3\x56\x53\xa3\x36\xa3\x4f\x43\xda\x5a\x4b\x44\xd9\xde\xc4\x57\xf3\xf0"
      "\x2c\xa7\xcd\xbc\x36\xd7\xcd\xba\x7e\xe8\xbd\x9a\x3d\xf5\xbf\x67\xf3\xdb"
      "\xd0\xf0\x3b\x33\xf1\x8b\x8e\xd9\x08\x6e\x34\x77\xc4\x83\xfe\xcc\xa7\x37"
      "\x57\x76\xfb\xac\x0f\xbc\x39\x3a\xba\x51\x4b\xae\x89\x8f\x62\x65\x58\xea"
      "\x47\xd9\xcf\x34\x8c\x20\x3a\x87\xaf\xb4\xa5\x4b\x5a\x7a\xf8\xe4\xe9\xdd"
      "\x52\xbb\xdd\x7a\x60\x17\x6e\xa7\x2c\xdc\xaf\xc5\x6b\xe6\x5e\x48\xa9\xdb"
      "\x14\xbc\xa0\x4e\x77\x4d\x45\xbe\x33\xb0\x71\xf4\x0c\x4c\x84\x2f\x84\x2b"
      "\xa7\x94\xd8\xd9\x89\xee\xd0\x3e\x3f\x72\x37\xb6\x77\xd9\x89\x1c\xf9\xde"
      "\x2b\x21\xba\x61\x27\xd6\x84\xbc\xe2\x2f\xad\xac\x6b\xa3\xf9\xb1\xef\x42"
      "\x9a\xd8\x82\x5f\x99\xf0\x0e\x7f\xfa\x63\x44\xfd\x7d\xc2\x0f\x25\x14\xa5"
      "\x7b\xd2\x8b\xce\x04\x05\xb1\x75\x97\x09\xc6\x7f\xae\x92\x0f\xeb\x7d\x57"
      "\xaf\xd9\x6a\xe1\x5a\x65\x78\x9d\x1e\x15\x64\x69\x25\x9b\xab\xde\xc3\x3d"
      "\xfa\xb6\xc6\x8e\x47\x40\xd5\x44\xfc\x8a\x5b\xfa\x2b\x59\x46\xe7\x8c\x0d"
      "\x16\xc3\x3a\x26\x65\x1c\xd7\xd1\x68\x63\xae\x53\x67\xa4\xd3\xa3\xb7\x58"
      "\x0f\xf3\x9c\x0d\xfe\xb3\x9c\x0d\x4c\x53\x9f\x75\x8b\xdf\xff\x01\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x66\xcd\xf1\xff\xae\x60"
      "\xe1\xd8\x51\x45\xf7\x11\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x80\x59\x17\xcf\xff\xab\x68\xfe\x5f\x8d\x36\xff\x6f\xff"
      "\x54\x2c\xe1\xfc\xbf\x55\xe5\xcc\xff\xbb\x35\x98\xc3\xc0\xfc\xbf\x6f\xf6"
      "\x64\x3a\x12\xf3\xff\x02\xd3\xf5\x2b\x00\x00\xff\xff\xff\x2c\x77\xb3",
      773);
  syz_mount_image(
      /*fs=*/0x200000000180, /*dir=*/0x2000000000c0,
      /*flags=MS_SYNCHRONOUS|MS_STRICTATIME|MS_NOSUID|MS_NODIRATIME*/ 0x1000812,
      /*opts=*/0x200000001240, /*chdir=*/1, /*size=*/0x305,
      /*img=*/0x200000000340);
  //  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*)0x200000000000, "./file1\000", 8);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000000ul,
          /*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 = 0x2fffffd (8 bytes)
  //  ]
  memcpy((void*)0x200000000940, "./file1\000", 8);
  syscall(__NR_truncate, /*file=*/0x200000000940ul, /*len=*/0x2fffffdul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: open_flags = 0x4042 (4 bytes)
  //    mode: open_mode = 0x80 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000140, "./bus\000", 6);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000140ul,
          /*flags=O_DIRECT|O_CREAT|O_RDWR*/ 0x4042, /*mode=S_IWUSR*/ 0x80);
  //  syz_mount_image$fuse arguments: [
  //    fs: nil
  //    dir: nil
  //    flags: mount_flags = 0x0 (8 bytes)
  //    opts: nil
  //    chdir: int8 = 0x3e (1 bytes)
  //    size: const = 0x0 (8 bytes)
  //    img: nil
  //  ]
  //  returns fd_dir
  syz_mount_image(/*fs=*/0, /*dir=*/0, /*flags=*/0, /*opts=*/0, /*chdir=*/0x3e,
                  /*size=*/0, /*img=*/0);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}