// https://syzkaller.appspot.com/bug?id=badad2dede6b94b2b829498e485cd76573e37d4f
// 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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  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 32 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x1 (8 bytes)
  //    opts: ptr[in, fs_options[hfsplus_options]] {
  //      fs_options[hfsplus_options] {
  //        elems: array[fs_opt_elem[hfsplus_options]] {
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nodecompose: buffer: {6e 6f 64 65 63 6f 6d 70 6f 73 65}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              type: fs_opt["type", array[int8, 4]] {
  //                name: buffer: {74 79 70 65} (length 0x4)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {d7 10 21 1b} (length 0x4)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              part: fs_opt["part", fmt[hex, int32]] {
  //                name: buffer: {70 61 72 74} (length 0x4)
  //                eq: const = 0x3d (1 bytes)
  //                val: int32 = 0x9 (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nodecompose: buffer: {6e 6f 64 65 63 6f 6d 70 6f 73 65}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              decompose: buffer: {64 65 63 6f 6d 70 6f 73 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              creator: fs_opt["creator", array[int8, 4]] {
  //                name: buffer: {63 72 65 61 74 6f 72} (length 0x7)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {1e eb 39 07} (length 0x4)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              decompose: buffer: {64 65 63 6f 6d 70 6f 73 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nodecompose: buffer: {6e 6f 64 65 63 6f 6d 70 6f 73 65}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              type: fs_opt["type", array[int8, 4]] {
  //                name: buffer: {74 79 70 65} (length 0x4)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {f6 06 a1 5d} (length 0x4)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              uid: fs_opt["uid", fmt[hex, uid]] {
  //                name: buffer: {75 69 64} (length 0x3)
  //                eq: const = 0x3d (1 bytes)
  //                val: uid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              decompose: buffer: {64 65 63 6f 6d 70 6f 73 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              decompose: buffer: {64 65 63 6f 6d 70 6f 73 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0xdf (1 bytes)
  //    size: len = 0x6db (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x6db)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x2000000000c0, "hfsplus\000", 8);
  memcpy((void*)0x200000000180, "./file2\000", 8);
  memcpy((void*)0x200000002480, "nodecompose", 11);
  *(uint8_t*)0x20000000248b = 0x2c;
  memcpy((void*)0x20000000248c, "type", 4);
  *(uint8_t*)0x200000002490 = 0x3d;
  memcpy((void*)0x200000002491, "\xd7\x10\x21\x1b", 4);
  *(uint8_t*)0x200000002495 = 0x2c;
  memcpy((void*)0x200000002496, "part", 4);
  *(uint8_t*)0x20000000249a = 0x3d;
  sprintf((char*)0x20000000249b, "0x%016llx", (long long)9);
  *(uint8_t*)0x2000000024ad = 0x2c;
  memcpy((void*)0x2000000024ae, "nodecompose", 11);
  *(uint8_t*)0x2000000024b9 = 0x2c;
  memcpy((void*)0x2000000024ba, "decompose", 9);
  *(uint8_t*)0x2000000024c3 = 0x2c;
  memcpy((void*)0x2000000024c4, "creator", 7);
  *(uint8_t*)0x2000000024cb = 0x3d;
  memcpy((void*)0x2000000024cc, "\x1e\xeb\x39\x07", 4);
  *(uint8_t*)0x2000000024d0 = 0x2c;
  memcpy((void*)0x2000000024d1, "decompose", 9);
  *(uint8_t*)0x2000000024da = 0x2c;
  memcpy((void*)0x2000000024db, "nodecompose", 11);
  *(uint8_t*)0x2000000024e6 = 0x2c;
  memcpy((void*)0x2000000024e7, "type", 4);
  *(uint8_t*)0x2000000024eb = 0x3d;
  memcpy((void*)0x2000000024ec, "\xf6\x06\xa1\x5d", 4);
  *(uint8_t*)0x2000000024f0 = 0x2c;
  memcpy((void*)0x2000000024f1, "uid", 3);
  *(uint8_t*)0x2000000024f4 = 0x3d;
  sprintf((char*)0x2000000024f5, "0x%016llx", (long long)0);
  *(uint8_t*)0x200000002507 = 0x2c;
  memcpy((void*)0x200000002508, "decompose", 9);
  *(uint8_t*)0x200000002511 = 0x2c;
  memcpy((void*)0x200000002512, "decompose", 9);
  *(uint8_t*)0x20000000251b = 0x2c;
  *(uint8_t*)0x20000000251c = 0;
  memcpy(
      (void*)0x200000001440,
      "\x78\x9c\xec\xdd\xcd\x6f\x1c\x67\xfd\x00\xf0\xef\xcc\xae\xed\xb5\x7f\x52"
      "\xe2\xb4\x49\xdb\x1f\xaa\x84\xd5\x88\x82\xb0\x48\xfc\x22\x17\xcc\x25\x06"
      "\x21\xe4\x43\x85\x2a\x38\x70\x5e\x25\x4e\x63\x65\xe3\x56\xb6\x0b\x6e\x84"
      "\xc0\xbc\x5f\x7b\xe8\x1f\x50\x0e\xbe\x20\x4e\x48\xdc\x83\xca\x19\x2e\x08"
      "\x8e\x16\xa7\x4a\x88\x5e\x38\xf9\xb6\x68\x5e\xf6\xc5\xde\x5d\x7b\x37\x4e"
      "\xbd\x31\x7c\x3e\xd1\x78\x9e\x99\x67\x9e\xb7\xef\x3e\x33\xbb\xb3\xab\x68"
      "\x02\xf8\x9f\xb5\x3e\x1f\xd5\x27\x91\xc4\xfa\xfc\x9b\x7b\xd9\xf6\xe1\xc1"
      "\x72\xe3\xf0\x60\x79\xaa\xcc\x6e\x44\x44\x96\x4e\x23\xaa\xc5\x2a\x92\xad"
      "\x88\xe4\xe3\x88\xb5\x28\x96\xf8\xff\x6c\x67\x79\x7c\x32\xa8\x9d\x0f\x37"
      "\x57\xbf\xfb\xb7\x7f\x1f\x7e\x52\x6c\x55\xcb\x25\x3f\x3e\xed\x2d\xf7\x93"
      "\x66\x44\x7c\x61\xf8\x51\xec\x97\x4b\xcc\x45\x44\xa5\x5c\xf7\x9a\xe8\xdd"
      "\x55\x3b\xbb\xbe\xbb\x03\xeb\x2b\x4c\x75\xa5\xfb\x8f\x3f\x69\xe7\x64\x01"
      "\xbb\xd9\x0a\x1c\x8c\x5b\xb3\xc7\xfe\x28\xc5\x07\x9e\xef\xc0\xe5\x91\x14"
      "\xef\x9b\x3d\x66\x23\x66\xca\xb7\xc9\xfc\x7d\xae\xbc\x3a\xa4\x17\xdb\xbb"
      "\x67\x6f\xa4\xab\x1c\x00\x00\x00\x8c\xd9\xfa\xbf\x6e\x2c\x8d\x72\xfc\x74"
      "\xb9\xbe\x7a\x14\x47\xb1\x77\xe9\x6f\xe3\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\xe0\x42\x95\xcf\xff\x4f\xca\x25\x6d\xa5\xe7\x22\x69\x3d\xff\x7f\xb2"
      "\xdc\x17\x65\xfa\x52\x7b\x32\xee\x0e\x00\x00\x00\x00\x00\x00\x00\x40\x8f"
      "\x89\x9e\x3d\x53\xad\xc4\x9d\xfe\x25\x3e\x7f\x14\x47\xb1\x17\x57\x5a\xdb"
      "\xcd\x24\xff\xcd\xff\xb5\x7c\xe3\x7a\xfe\xf7\xff\xe2\xbd\xd8\x89\x8d\xd8"
      "\x8e\x5b\xb1\x17\xf5\xd8\x8d\xdd\xd8\x8e\xc5\x88\x98\xed\xaa\x68\x72\xaf"
      "\xbe\xbb\xbb\xbd\x38\x44\xc9\xa5\xbe\x25\x97\x8e\xf7\xab\x32\xdc\x80\x6b"
      "\xc3\x1d\x06\x00\x00\x00\x00\x00\x00\x00\xff\xf5\x7e\x16\xeb\x9d\xdf\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\x79\x90\x44\x54\x8a\x55"
      "\xbe\x5c\x6f\xa5\x67\x23\xad\x46\x44\x2d\x22\x26\xb3\xe3\xf6\x23\xfe\xd2"
      "\x4a\x5f\x12\x49\xbf\x9d\x4f\x2e\xbe\x1f\x00\x00\x00\x70\x2e\xb5\xa7\x28"
      "\x73\xf5\x28\x8e\x62\x2f\xae\xb4\xb6\x9b\x49\x7e\xcf\xff\x52\x7e\xbf\x5c"
      "\x8b\xf7\x62\x2b\x76\x63\x33\x76\xa3\x11\x1b\x71\xaf\xbc\x87\xce\xee\xfa"
      "\xd3\xc3\x83\xe5\xc6\xe1\xc1\xf2\xa3\x6c\x39\x77\xd7\xf3\x1a\xa3\xf8\xee"
      "\xa1\x7f\xcb\xaf\xe4\x47\x4c\xc7\xfd\xd8\xcc\xf7\xdc\x8a\xbb\x79\x67\xee"
      "\x45\x9a\x97\xcc\xfc\x23\x22\x1e\xb5\xfa\xd4\xdb\xaf\x9f\x7e\x9a\xd5\x7d"
      "\xa7\xf0\xc3\x21\x7b\x76\xaf\x5c\x67\x8d\x7d\xd0\xfa\x16\x61\xea\xdc\x03"
      "\x7e\x06\x66\x23\xaa\x69\x4c\xb4\x23\xb2\x90\xf7\xad\x98\x04\xd7\xba\xa3"
      "\xd0\x1b\x89\x6f\x7c\x3a\xa8\xd2\xb5\xe2\x15\xae\x9e\x6c\x29\xba\x5b\x5a"
      "\x8c\xb4\xfd\xcd\xcf\xf5\xa2\x85\x2c\x79\x66\xcc\xef\x0c\x39\xb2\x99\x72"
      "\x9d\xf5\xe5\x57\x83\xbe\xb9\x79\xd6\x6a\x9d\x46\xf7\x07\x1e\xd4\x8e\x44"
      "\x1a\x79\x24\x96\xba\x66\xdf\x4b\xa7\xc7\x3c\xe2\x8b\x7f\xf8\xdd\x07\x0f"
      "\x1a\x5b\x0f\x1f\xdc\xdf\x99\xbf\x90\x21\x7d\x96\x4e\xce\x89\xe5\xae\x48"
      "\xbc\x3c\x44\x24\xbe\xff\xdc\x46\xa2\x7a\x7a\x76\x7a\x72\xc7\x42\xbe\xf3"
      "\x46\x7b\x7b\x3d\xbe\x1d\xdf\x8b\xf9\x98\x8b\xb7\x62\x3b\x36\xe3\x07\x51"
      "\x8f\xdd\xd8\x88\xa4\x1c\x69\xbd\x9c\xcf\xd9\xdf\xd9\xd3\x23\xb5\x76\x6c"
      "\xeb\xad\xb3\x7a\x3e\x59\xbe\x2e\x95\xb2\xa3\x5d\x7d\x6a\x76\x2a\xe9\xee"
      "\xd3\x5c\x7c\x2b\x4f\xd5\xe3\xb5\xbc\xec\x95\xd8\x8c\x24\xde\x89\x7b\xb1"
      "\x11\x6f\xe4\xff\x96\x62\x31\xbe\x1a\x2b\xb1\x12\xab\x5d\xaf\xf0\x8d\x81"
      "\xfd\xce\xc7\x96\x9f\xf5\xe9\x68\x67\xfd\xcd\x2f\x95\x89\xe9\x88\xf8\x75"
      "\xb9\x1e\xb7\xe2\xa2\x90\xc5\xf5\x5a\x57\x5c\xbb\xaf\xb9\xb3\x79\x5e\xf7"
      "\x9e\x4e\x94\x5e\x38\xfd\xd5\xed\xbd\x36\x9e\x3d\xe4\xea\xe7\xca\x44\xd6"
      "\xc6\xcf\xfb\x4d\xc7\xb1\x39\x19\x89\xc5\xae\x48\xbc\x78\x7a\x24\x7e\x93"
      "\x4f\xcf\x9d\xc6\xd6\xc3\xed\x07\xf5\x77\xfb\xbc\xbb\x36\x93\x89\x7c\xfd"
      "\xd7\x9b\x11\xcd\x72\x2e\xbf\x5e\xe6\x65\x33\xee\x97\x67\x7f\xfc\xf9\xe3"
      "\x79\xc7\x77\x86\xae\xeb\x58\x36\x5f\x5e\x88\x5a\x79\x25\xb9\x16\x13\x45"
      "\xd7\x2a\xad\xbc\x17\xdb\x57\x99\xe3\xf1\x9a\x2c\x7f\x71\x29\xf2\xd2\x13"
      "\x79\xb5\xec\x7c\x4e\x8b\x96\x8a\x33\xf5\x3b\x03\xcf\xd4\xc9\xf2\x33\x5c"
      "\x6f\x4d\x4b\x79\xde\xcb\x7d\xf3\x96\xf3\xbc\x57\xba\xf2\xba\x3f\x6f\x45"
      "\xbc\x13\x8d\xf6\xe7\x21\x00\x9e\x2f\xc7\x3e\x0f\xcc\x7c\x79\x66\x72\xfa"
      "\x9f\xd3\x7f\x9e\xfe\x68\xfa\x17\xd3\x0f\xa6\xdf\xac\x7d\x73\xea\x6b\x53"
      "\xaf\x4e\xc6\xc4\x9f\x26\xbe\x5e\x5d\xa8\xbc\x9e\xbe\x9a\xfc\x3e\x3e\x8a"
      "\x1f\x77\xee\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\xa7\xb7\xf3\xfe\xe3\x87\xf5\x46"
      "\x63\x63\xbb\x7f\x22\xad\x0c\xcc\x1a\x90\x88\xe6\xe3\x87\xf5\xd6\x93\x7c"
      "\x86\x2d\x15\x3b\x49\xf9\x24\x9d\x91\xda\xba\xd0\xc4\x6f\x3b\x7b\xda\x8f"
      "\xfc\x19\xae\x78\x75\xfc\x9d\x1f\x39\x51\x8d\xa4\x27\x2b\x1b\xf1\xb3\x69"
      "\xa2\xf5\x10\xc1\xd1\x4a\x2d\xf4\xce\xa8\xb5\x71\x06\xea\xef\xa3\x96\x8a"
      "\xda\x50\x43\x9e\x29\x13\xcd\xab\x45\x94\x46\x6a\x62\xf6\xe4\xcc\x8c\x18"
      "\x70\xf0\x54\x11\xcc\xca\x80\xf3\xb4\x7c\x89\x9e\xe6\xe1\xa2\xc0\xa5\x70"
      "\x7b\xf7\xd1\xbb\xb7\x77\xde\x7f\xfc\x95\xcd\x47\xf5\xb7\x37\xde\xde\xd8"
      "\x9a\x58\x59\x59\x5d\x58\x5d\x79\x63\xf9\xf6\xfd\xcd\xc6\xc6\x42\xf1\x77"
      "\xdc\xbd\x04\x3e\x0b\x9d\xcf\xed\xc7\x3d\x17\x4f\xba\x06\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\xfa\xba\x88\xff\x2f\x31\xee\x31\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\x97"
      "\xdb\xfa\x7c\x54\x9f\x44\x12\x8b\x0b\xb7\x16\xb2\xed\xc3\x83\xe5\x46\xb6"
      "\xb4\xd2\x9d\x23\xab\x11\x91\xa6\x11\xc9\x8f\x22\x92\x8f\x23\xd6\xa2\x58"
      "\x62\xb6\xab\xba\x64\x50\x3b\x1f\x6e\xae\x56\x22\xe2\x93\x4e\x5d\xd5\xd6"
      "\xf1\xe9\x29\xe5\x9a\x53\x43\x8d\x62\xbf\x5c\x62\x2e\x22\x2a\xe5\xfa\x1c"
      "\x8e\xd5\x77\xf7\xdc\xf5\x25\xed\x11\x66\xb1\xba\xd9\x0a\x1c\x8c\xdb\x7f"
      "\x02\x00\x00\xff\xff\x4b\xc3\xec\x56",
      1755);
  syz_mount_image(/*fs=*/0x2000000000c0, /*dir=*/0x200000000180,
                  /*flags=MS_RDONLY*/ 1, /*opts=*/0x200000002480,
                  /*chdir=*/0xdf, /*size=*/0x6db, /*img=*/0x200000001440);
  //  syz_mount_image$fuse arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {66 75 73 65 00} (length 0x5)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    flags: mount_flags = 0xa8406c (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //      }
  //    }
  //    chdir: int8 = 0x0 (1 bytes)
  //    size: const = 0x0 (8 bytes)
  //    img: nil
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000040, "fuse\000", 5);
  memcpy((void*)0x200000000300, ".\000", 2);
  syz_mount_image(
      /*fs=*/0x200000000040, /*dir=*/0x200000000300,
      /*flags=MS_I_VERSION|MS_SLAVE|MS_REC|MS_REMOUNT|MS_RELATIME|MS_NOEXEC|0x44*/
      0xa8406c, /*opts=*/0x200000000600, /*chdir=*/0, /*size=*/0, /*img=*/0);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    flags: open_flags = 0x0 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000040, ".\000", 2);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000040ul,
                /*flags=*/0, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  linkat arguments: [
  //    oldfd: fd_dir (resource)
  //    old: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    newfd: fd_dir (resource)
  //    new: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: linkat_flags = 0x0 (8 bytes)
  //  ]
  memcpy((void*)0x200000000180, "./file1\000", 8);
  memcpy((void*)0x200000000640, "./bus\000", 6);
  syscall(__NR_linkat, /*oldfd=*/r[0], /*old=*/0x200000000180ul, /*newfd=*/r[0],
          /*new=*/0x200000000640ul, /*flags=*/0ul);
}
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;
}