// https://syzkaller.appspot.com/bug?id=64404d8bce0ae1f588f4fc6f27e612910257849c
// 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");
}

#define KMEMLEAK_FILE "/sys/kernel/debug/kmemleak"

static const char* setup_leak()
{
  if (!write_file(KMEMLEAK_FILE, "scan=off")) {
    if (errno == EBUSY)
      return "KMEMLEAK disabled: increase CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE"
             " or unset CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF";
    return "failed to write(kmemleak, \"scan=off\")";
  }
  if (!write_file(KMEMLEAK_FILE, "scan"))
    return "failed to write(kmemleak, \"scan\")";
  sleep(5);
  if (!write_file(KMEMLEAK_FILE, "scan"))
    return "failed to write(kmemleak, \"scan\")";
  if (!write_file(KMEMLEAK_FILE, "clear"))
    return "failed to write(kmemleak, \"clear\")";
  return NULL;
}

static void check_leaks(void)
{
  int fd = open(KMEMLEAK_FILE, O_RDWR);
  if (fd == -1)
    exit(1);
  uint64_t start = current_time_ms();
  if (write(fd, "scan", 4) != 4)
    exit(1);
  sleep(1);
  while (current_time_ms() - start < 4 * 1000)
    sleep(1);
  if (write(fd, "scan", 4) != 4)
    exit(1);
  static char buf[128 << 10];
  ssize_t n = read(fd, buf, sizeof(buf) - 1);
  if (n < 0)
    exit(1);
  int nleaks = 0;
  if (n != 0) {
    sleep(1);
    if (write(fd, "scan", 4) != 4)
      exit(1);
    if (lseek(fd, 0, SEEK_SET) < 0)
      exit(1);
    n = read(fd, buf, sizeof(buf) - 1);
    if (n < 0)
      exit(1);
    buf[n] = 0;
    char* pos = buf;
    char* end = buf + n;
    while (pos < end) {
      char* next = strstr(pos + 1, "unreferenced object");
      if (!next)
        next = end;
      char prev = *next;
      *next = 0;
      fprintf(stderr, "BUG: memory leak\n%s\n", pos);
      *next = prev;
      pos = next;
      nleaks++;
    }
  }
  if (write(fd, "clear", 5) != 5)
    exit(1);
  close(fd);
  if (nleaks)
    exit(1);
}

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;
    }
    check_leaks();
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  open arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: open_flags = 0x14507e (8 bytes)
  //    mode: open_mode = 0x1 (8 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000200, "./bus\000", 6);
  syscall(__NR_open, /*file=*/0x200000000200ul,
          /*flags=O_SYNC|O_NOATIME|O_DIRECT|O_CREAT|O_RDWR|0x3c*/ 0x14507eul,
          /*mode=S_IXOTH*/ 1ul);
  //  mount arguments: [
  //    src: ptr[in, blockdev_filename] {
  //      union blockdev_filename {
  //        loop: loop_filename {
  //          prefix: buffer: {2f 64 65 76 2f 6c 6f 6f 70} (length 0x9)
  //          id: proc = 0x0 (1 bytes)
  //          z: const = 0x0 (1 bytes)
  //        }
  //      }
  //    }
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    type: nil
  //    flags: mount_flags = 0x1c10 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000380, "/dev/loop", 9);
  *(uint8_t*)0x200000000389 = 0x30;
  *(uint8_t*)0x20000000038a = 0;
  memcpy((void*)0x200000000140, "./bus\000", 6);
  syscall(__NR_mount, /*src=*/0x200000000380ul, /*dst=*/0x200000000140ul,
          /*type=*/0ul,
          /*flags=MS_SYNCHRONOUS|MS_NODIRATIME|MS_NOATIME|MS_BIND*/ 0x1c10ul,
          /*data=*/0ul);
  //  open arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: open_flags = 0xc40 (8 bytes)
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000400, "./bus\000", 6);
  res = syscall(__NR_open, /*file=*/0x200000000400ul,
                /*flags=O_NONBLOCK|O_CREAT|O_APPEND*/ 0xc40ul, /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  //  ioctl$BLKROSET arguments: [
  //    fd: fd_block (resource)
  //    cmd: const = 0x125d (4 bytes)
  //    arg: ptr[in, intptr] {
  //      intptr = 0x3f (8 bytes)
  //    }
  //  ]
  *(uint64_t*)0x200000000080 = 0x3f;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x125d, /*arg=*/0x200000000080ul);
  //  syz_mount_image$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 30 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {6e 6c 73 3d 61 73 63 69 69 2c 67 69 64 3d}
  //          (length 0xe)
  //        }
  //        union ANYUNION {
  //          ANYRESHEX: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {2c 70 61 72 74 3d 30 78 30 30 30 30 30 30 30 30
  //          30 30 30 30 30 30 62 62 2c 6e 6f 62 61 72 72 69 65 72 2c 6e 6f 62
  //          61 72 72 69 65 72 2c 63 72 65 61 74 6f 72 3d 7f cf b5 b7 2c 70 61
  //          72 74 3d 30 78 30 30 30 30 30 30 30 30 30 30 30 30 30 31 30 31 2c
  //          67 69 64 3d} (length 0x56)
  //        }
  //        union ANYUNION {
  //          ANYRESHEX: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRES8: ANYRES8 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRESDEC: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRES16: ANYRES16 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRES64: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRES64: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRESHEX: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRES32: ANYRES32 (resource)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x5 (1 bytes)
  //    size: len = 0x6fe (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x6fe)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000000, "hfsplus\000", 8);
  memcpy((void*)0x200000002380, "./file0\000", 8);
  memcpy((void*)0x200000001400, "nls=ascii,gid=", 14);
  sprintf((char*)0x20000000140e, "0x%016llx", (long long)0);
  memcpy(
      (void*)0x200000001420,
      "\x2c\x70\x61\x72\x74\x3d\x30\x78\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x62\x62\x2c\x6e\x6f\x62\x61\x72\x72\x69\x65\x72\x2c\x6e"
      "\x6f\x62\x61\x72\x72\x69\x65\x72\x2c\x63\x72\x65\x61\x74\x6f\x72\x3d\x7f"
      "\xcf\xb5\xb7\x2c\x70\x61\x72\x74\x3d\x30\x78\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x31\x30\x31\x2c\x67\x69\x64\x3d",
      86);
  sprintf((char*)0x200000001476, "0x%016llx", (long long)0);
  *(uint8_t*)0x200000001488 = 0;
  sprintf((char*)0x200000001489, "%020llu", (long long)-1);
  *(uint16_t*)0x20000000149d = 0;
  *(uint64_t*)0x20000000149f = 0;
  *(uint64_t*)0x2000000014a7 = -1;
  sprintf((char*)0x2000000014af, "0x%016llx", (long long)0);
  *(uint32_t*)0x2000000014c1 = -1;
  memcpy(
      (void*)0x200000000b00,
      "\x78\x9c\xec\xdd\x3b\x6c\x1b\xe7\x1d\x00\xf0\xff\x51\x14\x25\xba\x80\x23"
      "\x27\x7e\xa4\x45\x80\x10\x31\x90\x16\x15\x6a\x4b\x16\x94\x56\x5d\xea\x16"
      "\x45\xa1\x21\x28\x82\x74\xe8\x4c\xd8\x72\x4c\x98\x96\x03\x49\x29\x64\xa3"
      "\xa8\x95\x3e\xf6\x0e\x99\x3a\xa5\x83\xb6\xa0\x43\x91\xee\x06\xda\xb9\x41"
      "\x8a\x22\xab\xc6\x00\x05\xb2\x64\xd2\x54\x16\x77\xbc\xe3\x43\xa4\x48\xca"
      "\x96\x25\x35\xf9\xfd\x84\xe3\x7d\x77\xdf\xe3\xbe\xfb\x1f\xef\x8e\xe4\x41"
      "\xf8\x02\xf8\xda\x5a\x9d\x8f\xf2\x93\x48\x62\x75\xfe\xcd\xed\x74\x79\x6f"
      "\x77\xa9\x39\xb5\xbb\x34\x93\x67\x37\x23\xa2\x12\x11\xa5\x88\x72\x7b\x16"
      "\xc9\x7a\x64\xb9\x37\xf3\x29\xbe\x99\xae\xcc\xcb\x27\x9d\x86\xff\xd5\xbf"
      "\x9d\x0f\x1a\x2b\x6f\x7f\xf6\xe5\xde\xe7\xed\xa5\x72\x3e\x65\xe5\x93\xbe"
      "\x7a\xe3\x55\x06\x57\xed\xe4\x53\xd4\x22\x62\x2a\x9f\x0f\x9a\x3e\xa4\xc5"
      "\x8f\x0f\x6e\xbe\xaf\xbd\x5b\x87\xb6\x37\xa9\xee\x1e\xa6\x01\xbb\x5a\x04"
      "\x2e\xfe\xf4\x4c\xad\xc2\x33\x6b\x0d\xd8\xe9\xe4\x7d\xf4\xef\xec\x75\xa0"
      "\xce\xc5\x73\x9d\xe4\x51\xce\x5b\xe0\x8c\x4a\xda\xf7\xcd\x01\x73\x11\xe9"
      "\xd9\x3e\x1b\xd1\xbe\xeb\xe7\x57\x87\xd2\xc9\xf6\xee\xf8\xed\x9c\x76\x07"
      "\x00\x00\x00\xe0\xa8\xaa\x47\xaf\xf2\xc2\x7e\xec\xc7\x76\x9c\x7f\x1e\xdd"
      "\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\x80\xaf\xaa\x7c\xfc\xff\x24\x9f\x4a"
      "\x45\xba\x16\x49\x31\xfe\x7f\x25\x5f\x17\x79\xfa\x0c\x1a\x3f\x10\xe2\xa7"
      "\x33\xed\xf9\x93\xe7\xdf\x19\x00\x00\x00\x00\x00\x00\x00\x78\xee\x5e\xdd"
      "\x8f\xfd\xd8\x8e\xf3\xc5\x72\x2b\xc9\x9e\xf9\xbf\xd6\xf3\x8c\xff\x1b\xf1"
      "\x5e\x6c\xc6\x5a\x6c\xc4\xb5\xd8\x8e\x7a\x6c\xc5\x56\x6c\xc4\x62\x44\xcc"
      "\xf5\x34\x54\xd9\xae\x6f\x6d\x6d\x2c\x66\x35\x23\x2e\x8e\xa8\x79\x23\x3e"
      "\x19\x52\xf3\xc6\xe1\x7d\xbc\x79\xcc\xfb\x0c\x00\x00\x00\x00\x00\x00\x00"
      "\x67\xdc\xec\x98\xfc\x7b\xd3\x83\xeb\x7e\x1b\xab\xdd\xe7\xff\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\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\x16\x24\x11\x53\xed\x59\x36\x5d\x2c"
      "\xd2\x73\x51\x2a\x47\xc4\x6c\x51\x6e\x27\xe2\x93\x88\xa8\x9c\x6e\x6f\x8f"
      "\x24\x19\xb6\xf2\xc9\xc9\xf7\x03\x00\x00\x00\x9e\xc9\x6c\xff\x62\x32\x3b"
      "\x41\x9d\x17\x1e\xc7\x7e\x6c\xc7\xf9\x62\xb9\x95\x64\xdf\xf9\x2f\x67\xdf"
      "\x97\x67\xe3\xbd\x58\x8f\xad\x68\xc4\x56\x34\x63\x2d\x6e\xe7\xdf\xa1\xd3"
      "\x6f\xfd\xa5\xbd\xdd\xa5\xe6\xde\xee\xd2\xfd\x74\x1a\x6c\xf7\xc7\x5f\x1c"
      "\xa9\xeb\x59\x8b\xd1\xfe\xed\x61\xf8\x96\x5f\xce\x4a\x54\xe3\x4e\x34\xb2"
      "\x35\xd7\xe2\x56\x24\xd1\xca\x94\xf2\x56\x5e\xde\xdb\x5d\x4a\xe7\xf7\x87"
      "\xf7\xeb\xfd\xb4\x4f\xc9\x8f\x72\x23\x7a\x33\xd5\x93\xbe\x9d\xbe\x5c\xf9"
      "\x38\x4b\xff\xb1\xff\x57\x84\xf2\x91\x76\xf1\x29\x95\x0e\xcd\x99\xcb\x72"
      "\xa7\x3b\x11\x59\xc8\xfb\x96\xd6\xb8\x50\x44\x60\x78\x24\xfa\x8e\xce\xb0"
      "\xb7\x49\x79\xe4\x96\x16\xa3\xd4\xf9\xe5\xe7\xe2\x81\x2d\xb5\xfa\x7f\x66"
      "\x19\x1e\xf3\xf7\x47\xef\xf3\xb9\x03\xa5\x86\xfe\x72\x73\x2a\x0e\x46\xe2"
      "\x46\x94\x3a\x47\xe8\xf2\xe8\x98\x47\x7c\xfb\x6f\x1f\xfd\xf2\x6e\x73\xfd"
      "\xde\xdd\x3b\x9b\xf3\x67\x67\x97\x86\x7a\x3c\xb6\xc4\xc1\x48\x2c\xf5\x44"
      "\xe2\xca\x57\x28\x12\xe3\x2d\x64\x91\xb8\xd4\x59\x5e\x8d\x9f\xc5\x2f\x62"
      "\x3e\xbe\x98\x79\x2b\x36\xa2\x11\xbf\x8a\x7a\x6c\xc5\x5a\xad\xc8\xaf\xe7"
      "\xef\xe7\xf4\x75\x6e\x74\xa4\x3e\x3d\xd7\xbb\xf4\xd6\xb8\x9e\xa4\xe7\x64"
      "\xad\x73\xfd\x1a\xd6\xa7\x5a\xf4\xf5\x29\x6a\xf1\xd3\x2c\x55\x8f\xd7\xb2"
      "\x63\xfa\xdf\x56\x23\x92\x78\x10\x11\x6b\xf1\x46\xf6\x77\x23\x16\x3b\x57"
      "\x83\xee\x11\xbe\x34\xba\xdf\xd9\x59\x5f\x9a\xe0\x4a\xdb\xe3\xea\x77\xb2"
      "\x59\x27\x4c\x51\x3d\xbc\xec\x5f\x26\x6b\xf2\xb8\xa4\x71\xbd\xd0\x13\xd7"
      "\xde\x6b\xee\x5c\x96\xd7\xbb\xa6\x1b\xa5\x17\x87\x46\xa9\xb8\xd7\x4d\x7e"
      "\x3f\xea\x51\xfe\x56\x9e\x48\x5b\xf8\xdd\xc8\xfb\xc3\x49\x3b\x18\x89\xc5"
      "\x9e\x48\xbc\x74\xd8\xfb\xa5\x1d\xd2\x3f\x67\x77\x93\xcd\xe6\xfa\xbd\x8d"
      "\xbb\xf5\x77\x27\xdc\xde\xeb\xf9\x3c\x3d\x8f\xfe\x30\xfc\x2e\x71\x4a\xd7"
      "\x96\x74\x6f\x5e\x8c\xd9\x7c\xe7\x2e\x14\x5d\x69\x3d\xce\xf3\x5e\xea\xdc"
      "\x61\xfb\xe3\x55\xc9\x9f\xb8\xb4\x95\x06\xf2\x2e\x75\xea\xcd\xc5\xf9\x68"
      "\xc4\xcf\xe3\x41\xdc\xee\x3b\x53\xbf\x1f\xcb\xb1\x1c\x2b\x59\xe9\xcb\x59"
      "\xe9\xe9\x81\x3b\x56\x9a\x77\xa5\xd3\x52\xff\x35\x3c\xcd\x4b\x3f\x69\x95"
      "\x3b\x0f\x76\x7a\x3f\x6f\x3d\x88\x66\xfb\xf3\x10\x00\x67\xdb\xb9\xef\x9e"
      "\xab\x54\xff\x53\xfd\x67\xf5\xc3\xea\xef\xab\x77\xab\x6f\xce\xfe\x64\xe6"
      "\x07\x33\xaf\x54\x62\xfa\x1f\xd3\x3f\x2c\x2f\x4c\xbd\x5e\x7a\x25\xf9\x6b"
      "\x7c\x18\xbf\xe9\x7e\xff\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9e\xde\xe6\xc3\x47\xf7"
      "\xea\xcd\xe6\xda\xc6\xf0\x44\x69\x78\x56\x32\xba\x56\xbd\xd9\x2a\x06\x12"
      "\x1b\x51\xa6\x2f\x91\xe4\xa3\xf6\x4c\x50\x38\xd9\x7c\xf8\xa8\x35\xb6\xc1"
      "\xd1\x89\x99\xbc\x7b\x4f\x59\xfd\x38\x13\xc5\x30\x7c\xe3\x0b\xd7\x46\xb6"
      "\x53\x7e\xa6\x6e\x24\x3b\x07\x8f\xd7\xec\xf8\x63\x51\x8c\xf2\x34\xc1\x26"
      "\x92\x81\x80\xa7\x95\x9f\x3a\x74\xc5\x96\xbb\x6b\xa6\xcf\xc0\xa1\x3c\x98"
      "\xa8\x8d\x2e\x53\x99\x2c\x74\x59\xa2\x78\xc3\xf6\x64\x1d\xfd\xdd\x5b\x1d"
      "\x76\xbc\xa6\x22\x62\x58\xe1\x31\x17\x8e\xa9\xe3\xb8\xfa\x00\xa7\xe9\xfa"
      "\xd6\xfd\x77\xaf\x6f\x3e\x7c\xf4\xbd\xc6\xfd\xfa\x3b\x6b\xef\xac\xad\x4f"
      "\x2f\x2f\xaf\x2c\xac\x2c\xbf\xb1\x74\xfd\x4e\xa3\xb9\xb6\xd0\x7e\xed\xa9"
      "\x70\x22\x83\xdf\x02\x27\xa1\xf7\xe3\x44\x47\xfa\xc1\xe4\xd5\x81\xa2\x03"
      "\xe3\xb2\x8e\x18\xa8\x15\x00\x00\x00\x00\x00\x00\x00\x00\x00\x78\x8e\x4e"
      "\xe2\x7f\x21\x4e\x7b\x1f\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\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xff\x6f\xab\xf3\x51\x7e\x12\x49"
      "\x2c\x2e\x5c\x5b\x48\x97\xf7\x76\x97\x9a\xe9\x54\xa4\xbb\x25\xcb\x11\x51"
      "\x8a\x88\xe4\xd7\x11\xc9\xdf\x23\x6e\x46\x7b\x8a\xb9\x9e\xe6\x92\xc3\xb6"
      "\xf3\x41\x63\xe5\xed\xcf\xbe\xdc\xfb\xbc\xdb\x56\xb9\x28\x5f\x8a\xd8\x39"
      "\xb4\xde\x64\x76\xf2\x29\x6a\x11\x31\x95\xcf\x8f\xab\xbd\x5b\xe3\xdb\xab"
      "\x74\x93\x33\x43\xb2\x93\x4e\x64\xd2\x80\x5d\x2d\x02\x07\xa7\xed\x7f\x01"
      "\x00\x00\xff\xff\x90\x92\xed\xdb",
      1790);
  syz_mount_image(/*fs=*/0x200000000000, /*dir=*/0x200000002380, /*flags=*/0,
                  /*opts=*/0x200000001400, /*chdir=*/5, /*size=*/0x6fe,
                  /*img=*/0x200000000b00);
}
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;
  if ((reason = setup_leak()))
    printf("the reproducer may not work as expected: leak checking setup "
           "failed: %s\n",
           reason);
  loop();
  return 0;
}