// https://syzkaller.appspot.com/bug?id=25fc94c35217248702b30a9884eb709fe8383701
// 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 void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, max_destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device)
    reset_loop_device(loopname);
  errno = err;
  return res;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, umount_flags) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, umount_flags))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, umount_flags))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

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");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      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;
    }
    remove_dir(cwdbuf);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x200000000080, "ext4\000", 5);
  memcpy((void*)0x200000000140, "./file1\000", 8);
  memcpy((void*)0x200000001740, "errors=remount-ro", 17);
  *(uint8_t*)0x200000001751 = 0x2c;
  memcpy((void*)0x200000001752, "nodiscard", 9);
  *(uint8_t*)0x20000000175b = 0x2c;
  memcpy((void*)0x20000000175c, "noquota", 7);
  *(uint8_t*)0x200000001763 = 0x2c;
  memcpy((void*)0x200000001764, "jqfmt=vfsv0", 11);
  *(uint8_t*)0x20000000176f = 0x2c;
  memcpy((void*)0x200000001770, "noblock_validity", 16);
  *(uint8_t*)0x200000001780 = 0x2c;
  memcpy((void*)0x200000001781, "resgid", 6);
  *(uint8_t*)0x200000001787 = 0x3d;
  sprintf((char*)0x200000001788, "0x%016llx", (long long)0);
  *(uint8_t*)0x20000000179a = 0x2c;
  memcpy((void*)0x20000000179b, "sysvgroups", 10);
  *(uint8_t*)0x2000000017a5 = 0x2c;
  memcpy((void*)0x2000000017a6, "usrquota", 8);
  *(uint8_t*)0x2000000017ae = 0x2c;
  memcpy((void*)0x2000000017af, "usrquota", 8);
  *(uint8_t*)0x2000000017b7 = 0x2c;
  *(uint8_t*)0x2000000017b8 = 0;
  memcpy(
      (void*)0x200000000d80,
      "\x78\x9c\xec\xdd\xdf\x6b\x1c\x5b\x1d\x00\xf0\xef\x4c\xb2\xb7\xbf\x72\x4d"
      "\xae\xfa\x70\xbd\xe0\x6d\xb1\x95\xb4\x68\x77\x93\xc6\xb6\xc1\x87\x5a\x41"
      "\xec\x53\xc1\x5a\xdf\x6b\x4c\x36\x21\x64\x93\x0d\xd9\x4d\xdb\x84\x22\x29"
      "\xbe\x2b\x88\xa8\xe0\x93\x4f\xbe\x08\xfe\x01\x82\xf4\x4f\x10\xa1\xa0\xef"
      "\x52\x45\x11\x6d\xf5\xc1\x07\x75\x65\x67\x67\x6b\x1b\x77\x93\x94\x6e\x76"
      "\x2e\xc9\xe7\x03\xd3\x39\x33\x67\x77\xbf\xdf\xd3\xb0\x67\xe6\xcc\x1c\x76"
      "\x02\x38\xb6\xce\x45\xc4\xcd\x88\x18\x89\x88\x4b\x11\x31\x9e\xef\x4f\xf3"
      "\xe5\x56\xbb\xfe\x4e\xe7\x75\x2f\x9e\x3f\x9a\x6f\x2f\x49\xb4\x5a\x77\xff"
      "\x9a\x44\x92\xef\xeb\x7e\x56\x92\xaf\xcf\x44\xc4\x4e\x44\x9c\x8c\x88\xaf"
      "\xdf\x8a\xf8\x56\xf2\xff\x71\x1b\x5b\xdb\x2b\x73\xb5\x5a\x75\x23\xdf\xae"
      "\x34\x57\xd7\x2b\x8d\xad\xed\xcb\xcb\xab\x73\x4b\xd5\xa5\xea\xda\xcc\xcc"
      "\xf4\xb5\xd9\xeb\xb3\x57\x67\xa7\x06\xd2\xce\x89\x88\xb8\xf1\x95\x3f\xfe"
      "\xf0\x7b\x3f\xfb\xea\x8d\x5f\x7d\xfe\xc1\xef\xef\xfd\xf9\xe2\xb7\xdb\x69"
      "\x8d\xe5\xf5\xaf\xb6\x63\x90\x3a\x4d\x2f\x65\xff\x17\x5d\xa3\x11\xb1\x71"
      "\x18\xc1\x0a\x30\x92\xaf\x4b\x7d\xea\xbf\x3b\x32\xc4\x64\x00\x00\xd8\x57"
      "\xfb\x1c\xff\xe3\x11\xf1\x99\xec\xfc\x7f\x3c\x46\xb2\xb3\x53\x00\x00\x00"
      "\xe0\x28\x69\x7d\x69\x2c\xfe\x95\x44\xb4\x00\x00\x00\x80\x23\x2b\xcd\xe6"
      "\xc0\x26\x69\x39\x9f\x0b\x30\x16\x69\x5a\x2e\x77\xe6\xf0\x7e\x32\x4e\xa7"
      "\xb5\x7a\xa3\xf9\xb9\xc5\xfa\xe6\xda\x42\x67\xae\xec\x44\x94\xd2\xc5\xe5"
      "\x5a\x75\x2a\x9f\x2b\x3c\x11\xa5\xa4\xbd\x3d\x9d\xcf\xb1\xed\x6e\x5f\xd9"
      "\xb5\x3d\x13\x11\xef\x45\xc4\x0f\xc6\x4f\x65\xdb\xe5\xf9\x7a\x6d\xa1\xe8"
      "\x8b\x1f\x00\x00\x00\x70\x4c\x9c\xd9\x35\xfe\xff\xc7\x78\x36\xfe\x3f\x51"
      "\x74\x5e\x00\x00\x00\xc0\x80\x4d\x14\x9d\x00\x00\x00\x00\x70\xe8\x8c\xff"
      "\x01\x00\x00\xe0\xe8\x33\xfe\x07\x00\x00\x80\x23\xed\x6b\xb7\x6f\xb7\x97"
      "\x56\xf7\xf9\xd7\x0b\xf7\xb7\x36\x57\xea\xf7\x2f\x2f\x54\x1b\x2b\xe5\xd5"
      "\xcd\xf9\xf2\x7c\x7d\x63\xbd\xbc\x54\xaf\x2f\x65\xbf\xd9\xb7\xba\xdf\xe7"
      "\xd5\xea\xf5\xf5\x2f\xc4\xda\xe6\xc3\x4a\xb3\xda\x68\x56\x1a\x5b\xdb\xf7"
      "\x56\xeb\x9b\x6b\xcd\x7b\xcb\xaf\x3d\x02\x1b\x00\x00\x00\x18\xa2\xf7\xce"
      "\x3e\xf9\x5d\x12\x11\x3b\x5f\x3c\x95\x2d\x6d\xef\x14\x9d\x14\x30\x14\xc9"
      "\x3e\xf5\xd9\x43\x42\x9e\xe5\x1b\x7f\x18\x42\x42\xc0\xd0\x8c\x14\x9d\x00"
      "\x50\x98\xd1\xa2\x13\x00\x0a\x53\x2a\x3a\x01\xa0\x70\xfb\x5d\x07\xe8\x3b"
      "\x79\xe7\xd7\x83\xcf\x05\x00\x00\x38\x1c\x93\x9f\xea\x7f\xff\xdf\xb5\x01"
      "\x38\xda\xd2\xa2\x13\x00\x00\x86\xce\xfd\x7f\x38\xbe\x4a\xaf\xcf\x00\xbc"
      "\x5a\x5c\x26\x40\x51\x3e\xb6\x4f\xfd\xdb\xdf\xff\x6f\xb5\xde\x28\x21\x00"
      "\x00\x60\xe0\xc6\xb2\x25\x49\xcb\xf9\xbd\xc0\xb1\x48\xd3\x72\x39\xe2\xdd"
      "\xec\xb1\x00\xa5\x64\x71\xb9\x56\x9d\xca\xc7\x07\xbf\x1d\x2f\x9d\x68\x6f"
      "\x4f\x67\xef\x4c\xf6\x9d\x33\x0c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x74\xb4\x5a\x49\xb4\x00\x00\x00\x80"
      "\x23\x2d\x22\xfd\x53\x92\xfd\x9a\x7f\xc4\xe4\xf8\x85\xb1\xdd\xd7\x07\xde"
      "\x49\xfe\x39\x9e\xad\x23\xe2\xc1\x4f\xee\xfe\xe8\xe1\x5c\xb3\xb9\x31\xdd"
      "\xde\xff\xb7\x97\xfb\x9b\x3f\xce\xf7\x5f\x29\xe2\x0a\x06\x00\x00\x00\xb0"
      "\x5b\x77\x9c\xde\x1d\xc7\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\xc0\x20\xbd\x78\xfe\x68\xbe\xbb\x0c\x33\xee"
      "\x5f\xbe\x1c\x11\x13\x3d\xe3\x9f\x3d\x99\xad\x4e\x46\x29\x22\x4e\xff\x3d"
      "\x89\xd1\x57\xde\x97\x44\xc4\xc8\x00\xe2\xef\x3c\x8e\x88\xf7\x7b\xc5\x4f"
      "\xda\x69\xc5\x44\x74\xb2\xe8\x15\xff\x54\x81\xf1\xd3\x88\x38\x33\x80\xf8"
      "\x70\x9c\x3d\x69\xf7\x3f\x37\x7b\x7d\xff\xd2\x38\x97\xad\x7b\x7f\xff\x46"
      "\xf3\xe5\x6d\xf5\xef\xff\xd2\xe8\xf6\x7f\x23\x7d\xfa\x9f\x77\x0f\x18\xe3"
      "\x83\xa7\xbf\xa8\xf4\x8d\xff\x38\xe2\x83\xd1\xde\xfd\x4f\x37\x7e\xd2\x27"
      "\xfe\xf9\x03\xc6\xff\xe6\x37\xb6\xb7\xfb\xd5\xb5\x7e\x1a\x31\xd9\xf3\xf8"
      "\x93\xbc\x16\xab\xd2\x5c\x5d\xaf\x34\xb6\xb6\x2f\x2f\xaf\xce\x2d\x55\x97"
      "\xaa\x6b\x33\x33\xd3\xd7\x66\xaf\xcf\x5e\x9d\x9d\xaa\x2c\x2e\xd7\xaa\xf9"
      "\xbf\x3d\x63\x7c\xff\xd3\xbf\xfc\xcf\x5e\xed\x3f\xdd\x27\xfe\xc4\x3e\xed"
      "\xbf\x70\xc0\xf6\xff\xfb\xe9\xc3\xe7\x9f\xe8\x14\x4b\xbd\xe2\x5f\x3c\xdf"
      "\xfb\xf8\xfb\x7e\x9f\xf8\x69\x7e\xec\xfb\x6c\x5e\x6e\xd7\x4f\x76\xcb\x3b"
      "\x9d\xf2\xab\x3e\xfc\xf9\x6f\x3e\xdc\xab\xfd\x0b\x7d\xda\xff\xf2\xef\xdf"
      "\xe3\x40\xdb\x8e\x79\xf1\x80\xed\xbf\x74\xe7\x3b\xcf\x0e\xf8\x52\x00\x60"
      "\x08\x1a\x5b\xdb\x2b\x73\xb5\x5a\x75\xe3\xad\x0a\x83\xfa\x9c\x37\x2c\xa4"
      "\x51\x40\x50\x85\x43\x2a\x9c\xf8\x68\xa4\xa1\xd0\x29\xec\xd5\x6b\x24\xc3"
      "\xeb\xa0\x00\x00\x80\x81\xf9\xdf\x49\x7f\xd1\x99\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xf1\x35\x8c\x9f\x13\xdb\x1d\x73"
      "\xa7\x98\xa6\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\xec\xe9\xbf\x01\x00\x00\xff\xff\xf2\x48"
      "\xd8\xa4",
      1244);
  syz_mount_image(/*fs=*/0x200000000080, /*dir=*/0x200000000140,
                  /*flags=MS_LAZYTIME|MS_MANDLOCK*/ 0x2000040,
                  /*opts=*/0x200000001740, /*chdir=*/0x12, /*size=*/0x4dc,
                  /*img=*/0x200000000d80);
  memcpy((void*)0x200000000140, "./file0\000", 8);
  memcpy((void*)0x200000000100, "./file0\000", 8);
  memcpy((void*)0x200000000040, "incremental-fs\000", 15);
  syscall(__NR_mount, /*src=*/0x200000000140ul, /*dst=*/0x200000000100ul,
          /*type=*/0x200000000040ul, /*flags=MS_NOSUID*/ 2ul, /*opts=*/0ul);
  memcpy((void*)0x2000000000c0, "./file2\000", 8);
  syscall(
      __NR_openat, /*fd=*/0xffffff9c, /*file=*/0x2000000000c0ul,
      /*flags=O_SYNC|O_NONBLOCK|O_DIRECT|O_CREAT|O_CLOEXEC|0x2002*/ 0x187842,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXUSR|S_IRUSR*/ 0x147);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-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=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  use_temporary_dir();
  loop();
  return 0;
}