// https://syzkaller.appspot.com/bug?id=d7c3c31edf29f851c5935f32f68924a4d0f2543b
// 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;
}

static long syz_open_procfs(volatile long a0, volatile long a1)
{
  char buf[128];
  memset(buf, 0, sizeof(buf));
  if (a0 == 0) {
    snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1);
  } else if (a0 == -1) {
    snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1);
  } else {
    snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1);
  }
  int fd = open(buf, O_RDWR);
  if (fd == -1)
    fd = open(buf, O_RDONLY);
  return fd;
}

//% 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;
retry:
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;
  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 (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000100, "ext4\000", 5);
  memcpy((void*)0x20000200, "./file1\000", 8);
  *(uint8_t*)0x20000640 = 0;
  memcpy(
      (void*)0x20000e00,
      "\x78\x9c\xec\xdd\xef\x6b\x24\x67\x1d\x00\xf0\xef\x4c\xb2\xd7\xbd\xbb\xd4"
      "\x6c\x55\xe4\x2c\xd8\x16\x5b\xb9\x2b\x72\xbb\x97\xc6\xb6\x51\xa4\xad\x20"
      "\xfa\xaa\xa0\xd6\xf7\x67\x4c\xf6\x42\xc8\x26\x1b\xb2\x9b\x72\x09\x45\x53"
      "\x8a\xaf\x05\x11\x2b\xf8\x07\x88\x20\xf8\x07\x08\xd2\x3f\x41\x84\x82\xbe"
      "\x17\x15\x45\xf4\xaa\x6f\xed\xc8\xcc\xce\x6a\x7e\xec\x26\x7b\xcd\x8f\x3d"
      "\x36\x9f\x0f\xcc\xce\xf3\xcc\x33\x33\xdf\xe7\x19\x76\x67\xe7\xc7\xc3\x4c"
      "\x00\x97\xd6\x33\x11\xf1\x5a\x44\x4c\x45\xc4\xf3\x11\x31\x5b\x4e\x4f\xcb"
      "\xe1\x6e\x9e\xd9\xeb\xcd\xf7\xc1\x83\xb7\x96\xf2\x21\x89\x2c\x7b\xe3\x1f"
      "\x49\x24\xe5\xb4\xfe\xba\xf2\xfc\x74\x44\x5c\xef\x2d\x12\xd5\x88\xf8\xd6"
      "\xd7\x23\xbe\x9b\xf4\xca\x2b\xfb\xe2\x76\x76\x76\xd7\x16\x5b\xad\xe6\x56"
      "\x99\x6f\x74\xd7\x37\x1b\x9d\x9d\xdd\xdb\xab\xeb\x8b\x2b\xcd\x95\xe6\xc6"
      "\xfc\xfc\xdc\x4b\x0b\x2f\x2f\xbc\xb8\x70\x27\x2b\x9d\xaa\x9d\xb5\x88\x78"
      "\xe5\xab\x7f\xf9\xc9\x0f\x7f\xfe\xb5\x57\x7e\xf3\x83\xea\x1f\xef\xfe\xed"
      "\xd6\xf7\xf2\x6a\x7d\xf9\x53\xbd\x7a\x47\xc4\xd2\xa9\x02\x0c\xd1\x5b\x77"
      "\xa5\xd8\x16\x7d\xf9\x36\xda\x3a\x8f\x60\x63\x92\xb7\xa7\x32\x35\xee\x5a"
      "\x00\x00\x30\x8a\xfc\x18\xff\xe3\x11\xf1\xd9\xe2\xf8\x7f\x36\xa6\x8a\xa3"
      "\x39\x00\x00\x00\x60\x92\x64\xaf\xce\x14\xf7\xa8\x32\x00\x00\x00\x60\x62"
      "\xa5\x11\x31\x13\x49\x5a\x2f\xfb\x02\xcc\x44\x9a\xd6\xeb\xbd\x3e\xbc\x9f"
      "\x8c\x6b\x69\xab\xdd\xe9\x7e\xfe\x5e\x7b\x7b\x63\x39\x2f\x8b\xa8\x45\x25"
      "\xbd\xb7\xda\x6a\xde\x29\xfb\x0a\xd7\xa2\x92\xe4\xf9\xb9\xb2\x8f\x6d\x3f"
      "\xff\xc2\xa1\xfc\x7c\x44\x3c\x11\x11\x3f\x9e\xbd\x5a\xe4\xeb\x4b\xed\xd6"
      "\xf2\xb8\x2f\x7e\x00\x00\x00\xc0\x25\x71\xfd\xe9\x83\xe7\xff\xff\x9e\x4d"
      "\x8b\x34\x00\x00\x00\x30\x61\x6a\x43\x33\x00\x00\x00\xc0\xa4\x70\xca\x0f"
      "\x00\x00\x00\x93\xcf\xf9\x3f\x00\x00\x00\x4c\xb4\x6f\xbc\xfe\x7a\x3e\x64"
      "\xfd\xf7\x78\x2f\xbf\xb9\xb3\xbd\xd6\x7e\xf3\xf6\x72\xb3\xb3\x56\x5f\xdf"
      "\x5e\xaa\x2f\xb5\xb7\x36\xeb\x2b\xed\xf6\x4a\xf1\xcc\xbe\xf5\x93\xd6\xd7"
      "\x6a\xb7\x37\xbf\x10\x1b\xdb\xf7\x1b\xdd\x66\xa7\xdb\xe8\xec\xec\xde\x5d"
      "\x6f\x6f\x6f\x74\xef\xae\x1e\x78\x05\x36\x00\x00\x00\x70\x81\x9e\x78\xfa"
      "\xbd\x3f\x24\x11\xb1\xf7\xa5\xab\xc5\x10\xe5\x73\x00\x4b\x53\xe3\xab\x19"
      "\xf0\x48\xf9\xf3\xb8\x2b\x00\x9c\x25\x7f\xf0\x70\x79\x4d\x8f\xbb\x02\xc0"
      "\xd8\x54\x4e\x9c\xc3\x1e\x02\x26\xd7\x2f\x8a\xcf\xe4\x84\xb9\x8e\x76\xde"
      "\xe9\x5d\x2b\x8c\xdf\x9e\x47\x9d\x00\x00\x80\xf3\x70\xf3\xd3\x47\xef\xff"
      "\x5f\x29\xcb\x0e\x5f\x1b\x70\xaf\x00\x26\x4b\x3a\xee\x0a\x00\x00\x17\xce"
      "\xdd\x3d\xb8\xbc\x2a\xfd\xb3\xfa\x2c\xcb\xb2\x87\x59\xf0\xc6\x39\x55\x08"
      "\xb8\x70\x1f\x2b\xc7\xc3\xfa\x01\xec\xbf\xff\xff\xee\xfe\xcc\x08\xf7\xff"
      "\x7b\xd7\x18\x1e\x6e\xf7\x02\x00\x00\x9c\xbd\x99\x62\x48\xd2\x7a\x79\x9c"
      "\x3e\x13\x69\x5a\xaf\x47\x3c\x5e\xbc\x16\xa0\x92\xdc\x5b\x6d\x35\xef\x94"
      "\xe7\x07\xbf\x9f\xad\x3c\x96\xe7\xe7\x8a\x25\x93\x13\xfb\x0c\x03\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3d"
      "\x59\x96\x14\x8f\xfe\x07\x00\x00\x00\x26\x57\x44\xfa\xd7\xa4\x7c\xef\xd7"
      "\xcd\xd9\xe7\x66\x0e\x5e\x1d\xa8\x1e\xcc\xfe\xec\x8d\x77\xef\x2f\x76\xbb"
      "\x5b\x73\x11\x57\x92\x7f\xce\xe6\x93\xae\x44\x44\xf7\xa7\xe5\xf4\x17\x32"
      "\xaf\x04\x00\x00\x00\x80\x47\x40\xef\x3c\xbd\x1c\xcf\x8d\xbb\x36\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4c"
      "\x9a\x0f\x1e\xbc\xb5\xd4\x1f\x2e\x32\xee\xdf\xbf\x12\x11\xb5\x41\xf1\xa7"
      "\xa3\x5a\x8c\xab\x51\x89\x88\x6b\xff\x4a\x62\x7a\xdf\x72\x49\x44\x4c\x9d"
      "\x41\xfc\xbd\xb7\x23\xe2\xc6\xa0\xf8\x49\x7c\x98\x65\x59\xad\xac\xc5\xa0"
      "\xf8\x57\xcf\x39\x7e\xad\xd8\x34\x83\xe3\xa7\x11\x71\xfd\x0c\xe2\xc3\x65"
      "\xf6\x5e\xbe\xff\x79\x6d\xd0\xef\x2f\x8d\x67\x8a\xf1\xe0\xdf\xdf\x74\x39"
      "\x9c\xd6\xf0\xfd\x5f\xfa\xbf\xfd\xdf\xd4\x90\xfd\xcf\xe3\x87\xf2\xc3\x3c"
      "\xf9\xfe\xaf\x1a\x43\xe3\xbf\x1d\xf1\xe4\xf4\xe0\xfd\x4f\x3f\x7e\xd2\x8b"
      "\x7f\x20\x44\x9e\x79\x76\xc4\x36\x7e\xe7\xdb\xbb\xbb\x03\x0b\xf6\xad\x72"
      "\x50\xfc\xfd\xb1\x1a\xdd\xf5\xcd\x46\x67\x67\xf7\xf6\xea\xfa\xe2\x4a\x73"
      "\xa5\xb9\x31\x3f\x3f\xf7\xd2\xc2\xcb\x0b\x2f\x2e\xdc\x69\xdc\x5b\x6d\x35"
      "\xcb\xcf\x81\x61\x7e\xf4\x99\x5f\x7f\x78\x5c\xfb\xaf\x0d\x89\x5f\x3b\xd8"
      "\xfe\x23\xdb\xff\xb9\x91\x5a\x9f\xc5\x7f\xde\xbf\xff\xe0\x13\xbd\x4c\x65"
      "\x50\xfc\x5b\xcf\x0e\xfe\xff\xbd\x31\x24\x7e\x5a\xfe\xf7\x7d\xae\x4c\xe7"
      "\xe5\x37\xfb\xe9\xbd\x5e\x7a\xbf\xa7\x7e\xf9\xbb\xa7\x8e\x6b\xff\xf2\x90"
      "\xf6\x57\x4f\x68\xff\xad\x91\xda\x1f\x5f\x7c\xfe\x9b\xef\xfc\x69\x60\xc9"
      "\x91\xad\x01\x00\x5c\x84\xce\xce\xee\xda\x62\xab\xd5\xdc\x3a\x26\x51\x1d"
      "\x61\x9e\x0b\x4e\xbc\xfa\x68\x54\xe3\x0c\x13\x91\x27\x62\xec\xd5\x18\x57"
      "\x22\xfb\x7e\xef\xfb\x78\xba\xf5\x9c\x72\xf1\x23\x89\xec\xc4\x79\x1e\x1b"
      "\x5e\x34\x1d\x67\x50\x8d\x2b\x47\x7e\xa7\x53\x1f\xf9\x4b\x92\x44\xec\xe5"
      "\xeb\x1a\xf1\x0b\x09\x00\x00\x4c\x98\xff\x1f\xf4\x1f\x77\x07\x09\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\x4f\x23\x3c\x3c"
      "\xec\x9d\x38\x5a\x54\x8d\x88\x91\x9f\x3d\x76\x38\xe6\xde\x78\x9a\x0a\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\xac\xff\x06\x00\x00\xff\xff\xc2\x15\xd4\x5a",
      1329);
  syz_mount_image(
      /*fs=*/0x20000100, /*dir=*/0x20000200,
      /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_STRICTATIME|MS_RDONLY|MS_NOSUID|0x4c*/
      0x300005f, /*opts=*/0x20000640, /*chdir=*/1, /*size=*/0x531,
      /*img=*/0x20000e00);
  memcpy((void*)0x20000080, "ext4\000", 5);
  memcpy((void*)0x20000500, "./file1\000", 8);
  memcpy((void*)0x20000140, "init_itable", 11);
  *(uint8_t*)0x2000014b = 0x2c;
  memcpy((void*)0x2000014c, "noquota", 7);
  *(uint8_t*)0x20000153 = 0x2c;
  memcpy((void*)0x20000154, "nouid32", 7);
  *(uint8_t*)0x2000015b = 0x2c;
  memcpy((void*)0x2000015c, "barrier", 7);
  *(uint8_t*)0x20000163 = 0x2c;
  memcpy((void*)0x20000164, "noauto_da_alloc", 15);
  *(uint8_t*)0x20000173 = 0x2c;
  memcpy((void*)0x20000174, "journal_dev", 11);
  *(uint8_t*)0x2000017f = 0x3d;
  sprintf((char*)0x20000180, "0x%016llx", (long long)0x1ff);
  *(uint8_t*)0x20000192 = 0x2c;
  memcpy((void*)0x20000193, "barrier", 7);
  *(uint8_t*)0x2000019a = 0x2c;
  memcpy((void*)0x2000019b, "delalloc", 8);
  *(uint8_t*)0x200001a3 = 0x2c;
  memcpy((void*)0x200001a4, "usrquota", 8);
  *(uint8_t*)0x200001ac = 0x2c;
  *(uint8_t*)0x200001ad = 0;
  memcpy(
      (void*)0x20000ec0,
      "\x78\x9c\xec\xdd\xcf\x6b\x1c\x6f\x19\x00\xf0\x67\x36\xd9\x6f\x7f\xa5\x26"
      "\x55\x0f\xb5\x60\x5b\x6c\x25\x2d\xda\xdd\xa4\xb1\x6d\xf0\x50\x2b\x88\x3d"
      "\x48\x41\xad\xf7\x1a\x93\x4d\x08\xd9\x64\x43\x76\xd3\x36\xa1\x48\x8a\x77"
      "\x05\x11\x15\x3c\x79\xf2\x22\xf8\x07\x08\xd2\x3f\x41\x84\x82\xde\xa5\x8a"
      "\x22\xda\xea\xc1\x83\xba\xb2\xb3\xb3\x9a\xa6\xbb\xdd\x7c\xe9\x66\xa7\x24"
      "\x9f\x0f\x4c\xe7\x7d\x67\x76\xf6\x79\xde\xb6\xfb\xee\xbc\x33\x2f\x3b\x01"
      "\x1c\x59\x17\x23\xe2\x4e\x44\x8c\x44\xc4\xd5\x88\x18\xcf\xb6\x17\xb2\xe5"
      "\x6e\xab\xb2\xd3\x7e\xdd\xab\x97\x4f\xe6\x5b\x4b\x12\xcd\xe6\xfd\xbf\x26"
      "\x91\x64\xdb\x3a\xef\x95\x64\xeb\x53\xed\x43\xe2\x78\x44\x7c\xfd\x6e\xc4"
      "\xb7\x92\x37\xe3\xd6\xb7\xb6\x57\xe6\xaa\xd5\xca\x46\x56\x2f\x37\x56\xd7"
      "\xcb\xf5\xad\xed\x6b\xcb\xab\x73\x4b\x95\xa5\xca\xda\xcc\xcc\xf4\xcd\xd9"
      "\x5b\xb3\x37\x66\xa7\x06\xd2\xce\x89\x88\xb8\xfd\xa5\x3f\xfe\xf0\x7b\x3f"
      "\xfb\xf2\xed\x5f\x7d\xf6\xd1\xef\x1f\xfc\xf9\xca\xb7\x5b\x69\x8d\x65\xfb"
      "\x77\xb7\x63\x90\xda\x4d\x2f\xa6\x7f\x17\x1d\xa3\x11\xb1\x71\x10\xc1\x72"
      "\x30\x92\xad\x8b\x3d\xf6\x7f\x77\x64\x88\xc9\x00\x00\xd0\x57\xeb\x1c\xff"
      "\xa3\x11\xf1\xa9\xf4\xfc\x7f\x3c\x46\xd2\xb3\x53\x00\x00\x00\xe0\x30\x69"
      "\x7e\x61\x2c\xfe\x95\x44\x34\x01\x00\x00\x80\x43\xab\x90\xce\x81\x4d\x0a"
      "\xa5\x6c\x2e\xc0\x58\x14\x0a\xa5\x52\x7b\x0e\xef\xc7\xe3\x64\xa1\x5a\xab"
      "\x37\x3e\xb3\x58\xdb\x5c\x5b\x68\xcf\x95\x9d\x88\x62\x61\x71\xb9\x5a\x99"
      "\xca\xe6\x0a\x4f\x44\x31\x69\xd5\xa7\xb3\x39\xb6\x9d\xfa\xf5\x3d\xf5\x99"
      "\x88\x38\x13\x11\x3f\x18\x3f\x91\xd6\x4b\xf3\xb5\xea\x42\xde\x17\x3f\x00"
      "\x00\x00\xe0\x88\x38\xb5\x67\xfc\xff\x8f\xf1\x74\xfc\x7f\x2c\xef\xbc\x00"
      "\x00\x00\x80\x01\x9b\xc8\x3b\x01\x00\x00\x00\xe0\xc0\x19\xff\x03\x00\x00"
      "\xc0\xe1\x67\xfc\x0f\x00\x00\x00\x87\xda\x57\xef\xdd\x6b\x2d\xcd\xce\xf3"
      "\xaf\x17\x1e\x6e\x6d\xae\xd4\x1e\x5e\x5b\xa8\xd4\x57\x4a\xab\x9b\xf3\xa5"
      "\xf9\xda\xc6\x7a\x69\xa9\x56\x5b\x4a\x7f\xb3\x6f\xb5\xdf\xfb\x55\x6b\xb5"
      "\xf5\xcf\xc5\xda\xe6\xe3\x72\xa3\x52\x6f\x94\xeb\x5b\xdb\x0f\x56\x6b\x9b"
      "\x6b\x8d\x07\xcb\xaf\x3d\x02\x1b\x00\x00\x00\x18\xa2\x33\x17\x9e\xfd\x2e"
      "\x89\x88\x9d\xcf\x9f\x48\x97\x96\x0f\xf2\x4e\x0a\x18\x8a\xa4\xcf\xfe\xf4"
      "\x21\x21\x2f\xb2\xca\x1f\x86\x90\x10\x30\x34\x23\x79\x27\x00\xe4\x66\x34"
      "\xef\x04\x80\xdc\x14\xf3\x4e\x00\xc8\x5d\xbf\xeb\x00\x3d\x27\xef\xfc\x7a"
      "\xf0\xb9\x00\x00\x00\x07\x63\xf2\x13\xbd\xef\xff\xbb\x36\x00\x87\x5b\x21"
      "\xef\x04\x00\x80\xa1\x73\xff\x1f\x8e\xae\xa2\x19\x80\x70\xe4\x7d\xa4\xcf"
      "\xfe\x77\xbf\xff\xdf\x6c\x7e\xa8\x84\x00\x00\x80\x81\x1b\x4b\x97\xa4\x50"
      "\xca\xee\x05\x8e\x45\xa1\x50\x2a\x45\x9c\x4e\x1f\x0b\x50\x4c\x16\x97\xab"
      "\x95\xa9\x6c\x7c\xf0\xdb\xf1\xe2\xb1\x56\x7d\x3a\x3d\x32\xe9\x3b\x67\x18"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x68\x6b\x36\x93\x68\x02\x00\x00\x00\x87\x5a\x44\xe1\x4f\x49\xfa\x6b"
      "\xfe\x11\x93\xe3\x97\xc7\xf6\x5e\x1f\xf8\x20\xf9\xe7\x78\xba\x8e\x88\x47"
      "\x3f\xb9\xff\xa3\xc7\x73\x8d\xc6\xc6\x74\x6b\xfb\xdf\xfe\xb7\xbd\xf1\xe3"
      "\x6c\xfb\xf5\x3c\xae\x60\x00\x00\x00\x00\x7b\x75\xc6\xe9\x9d\x71\x3c\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x0c\xd2\xab\x97\x4f\xe6\x3b\xcb\x30\xe3\xfe\xe5\x8b\x11\x31\xd1\x35\xfe"
      "\x85\xe3\xe9\xea\x78\x14\x23\xe2\xe4\xdf\x93\x18\xdd\x75\x5c\x12\x11\x23"
      "\x03\x88\xbf\xf3\x34\x22\xce\x76\x8b\x9f\xb4\xd2\x8a\x89\x68\x67\xd1\x2d"
      "\xfe\x89\x1c\xe3\x17\x22\xe2\xd4\x00\xe2\xc3\x51\xf6\xac\xd5\xff\xdc\xe9"
      "\xf6\xf9\x2b\xc4\xc5\x74\xdd\xfd\xf3\x37\x9a\x2d\xef\xaa\x77\xff\x57\x88"
      "\x4e\xff\x37\xb2\x2b\x7e\x31\x3b\xae\xd5\xff\x9c\xde\x67\x8c\x73\xcf\x7f"
      "\x51\xee\x19\xff\x69\xc4\xb9\xd1\xee\xfd\x4f\x27\x7e\xd2\xa3\xff\xbb\xb4"
      "\xcf\xf8\xdf\xfc\xc6\xf6\x76\xaf\x7d\xcd\x9f\x46\x4c\x76\xfd\xfe\x49\x5e"
      "\x8b\x55\x6e\xac\xae\x97\xeb\x5b\xdb\xd7\x96\x57\xe7\x96\x2a\x4b\x95\xb5"
      "\x99\x99\xe9\x9b\xb3\xb7\x66\x6f\xcc\x4e\x95\x17\x97\xab\x95\xec\xcf\xae"
      "\x31\xbe\xff\xc9\x5f\xfe\xe7\x6d\xed\x3f\xd9\x23\xfe\x44\x9f\xf6\x5f\xde"
      "\x67\xfb\xff\xfd\xfc\xf1\xcb\x8f\xb5\x8b\xc5\x6e\xf1\xaf\x5c\xea\xfe\xfd"
      "\x7b\xf6\xcd\xf8\x5f\x79\x94\xf5\xfd\xad\xff\x13\x9f\xce\xca\xad\xfd\x93"
      "\x9d\xf2\x4e\xbb\xbc\xdb\xf9\x9f\xff\xe6\xfc\xdb\xda\xbf\xd0\xa3\xfd\xfd"
      "\xfe\xfd\xaf\xec\xb3\xfd\x57\xbf\xf6\x9d\x17\xfb\x7c\x29\x00\x30\x04\xf5"
      "\xad\xed\x95\xb9\x6a\xb5\xb2\xf1\xde\x17\x62\x27\xe2\x3d\x48\x43\xe1\xa0"
      "\x0a\xc7\xde\x8f\x34\x14\xda\x85\xbc\x7b\x26\x00\x00\x60\xd0\xfe\x7f\xd2"
      "\x9f\x77\x26\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x70\x74\x0d\xe3\xe7\xc4\xf6\xc6\xdc\xc9\xa7\xa9\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x6f"
      "\xf5\xdf\x00\x00\x00\xff\xff\xdb\xbd\xda\x8c",
      1235);
  syz_mount_image(/*fs=*/0x20000080, /*dir=*/0x20000500,
                  /*flags=MS_REC|MS_NOATIME|0x100*/ 0x4500, /*opts=*/0x20000140,
                  /*chdir=*/0x10, /*size=*/0x4d3, /*img=*/0x20000ec0);
  memcpy((void*)0x20004280, "./file0\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20004280ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20001840, "net/raw6\000", 9);
  res = -1;
  res = syz_open_procfs(/*pid=*/0, /*file=*/0x20001840);
  if (res != -1)
    r[1] = res;
  res = syscall(__NR_read, /*fd=*/r[1], /*buf=*/0x20001880ul, /*len=*/0x2020ul);
  if (res != -1)
    r[2] = *(uint32_t*)0x20001890;
  syscall(__NR_fchown, /*fd=*/r[0], /*uid=*/r[2], /*gid=*/0);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*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=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  use_temporary_dir();
  loop();
  return 0;
}