// https://syzkaller.appspot.com/bug?id=981f82f21b973f2f5663dfea581ff8cee1ddfef2
// 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 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, loopfd = -1, 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) {
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    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) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  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 (;;) {
      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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x200000c0, "hfsplus\000", 8);
  memcpy((void*)0x20000040,
         "\023\023w\305\3745\324\024T\325\324\035)\255\032`)"
         "Y\201F\346\276\026nA\255\r\275@T\003<\2373\273\332\202$"
         "\242\363\327r\347cnH\263<\277p\203r\350\361\271\223>"
         "\305\022wC\276\"\006 \236\360-\371\313\362\366\350\200\3238/\000",
         78);
  *(uint8_t*)0x200001c0 = 0;
  memcpy(
      (void*)0x20000b40,
      "\x78\x9c\xec\xdd\x4f\x6c\x1c\x57\x1d\x07\xf0\xef\x6c\x9c\xb5\x37\x48\x89"
      "\xdb\x26\x69\x40\x48\xb1\x1a\xa9\x82\x46\x24\x76\x56\x25\x41\x42\x6a\x40"
      "\x08\x72\x88\x50\x04\x07\x7a\xb5\x12\xa7\xb1\xe2\xa4\x95\xe3\xa2\xb4\x42"
      "\x64\x03\x14\x24\x4e\x9c\x50\x0f\x1c\x8a\x50\x38\xf4\x84\x10\x42\x2a\x27"
      "\x44\x39\x23\x21\x71\xe1\x94\x7b\x24\x6e\x1c\x72\x00\x8c\x66\x76\x76\x3d"
      "\xb1\x37\xae\x9d\x3f\x5e\xb7\xfd\x7c\xa4\xf1\xbc\x37\x6f\xe6\xbd\xdf\xfc"
      "\x3a\x7f\x76\x66\x1b\x6d\x80\x4f\xad\x73\xaf\x66\x6f\x2f\x45\xce\x1d\x3f"
      "\x7f\xb3\xac\xdf\xbd\xd3\x5d\xba\x7b\xa7\x7b\x6d\x50\x4e\x32\x99\xa4\x95"
      "\x4c\xf4\x67\x29\x3a\x49\xf1\x61\x72\x36\xfd\x29\x9f\x2d\x17\xd6\xdd\x15"
      "\x0f\x1b\xe7\xe5\x7b\x1f\x14\x13\xef\xbe\xdf\xed\xd7\x26\xea\xa9\x5a\xbf"
      "\xb5\xd9\x76\x1b\xd4\x6b\x7e\x6f\x5f\x73\x61\x2f\x99\x1a\x56\xf6\x24\x99"
      "\xe9\x17\xff\xb3\xe5\x6e\x9b\x6e\xad\x15\xcb\x7e\x2e\xae\xf5\xf7\x88\x8a"
      "\x61\xdc\x65\xc2\x8e\x0d\x12\x07\xe3\xb6\xba\x41\xaf\x5a\xbe\x37\xf5\x99"
      "\xb9\xb9\xad\x9f\xb7\xc0\xae\x75\xab\x7f\xdf\xdc\x60\x3a\x29\xef\xb4\x53"
      "\xf5\xe7\x80\xf4\xaf\x0e\x5b\xb8\x32\x8c\xdf\xa6\xd7\xa6\xde\xce\xc5\x01"
      "\x00\x00\x00\x4f\xcb\xc8\x67\xf9\xa6\x03\xf7\x73\x3f\x37\xb3\x7f\x67\xc2"
      "\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x4f\x86\xa2\xff\x9b\x81\x45\x3d"
      "\xb5\x06\xe5\x99\x14\x83\xdf\xff\x6f\x37\x7e\x53\xbf\x3d\xe6\x70\x1f\xd3"
      "\x3b\x97\xab\xd9\x77\x0e\x8c\x3b\x10\x00\x00\x00\x00\x00\x00\x00\x78\x2c"
      "\x47\xef\xe7\x7e\x6e\x66\xff\xa0\xbe\x5a\x54\xdf\xf9\xbf\x50\x55\x0e\x56"
      "\x7f\x3f\x93\x37\x73\x23\x0b\x59\xce\x89\xdc\xcc\x7c\x56\xb2\x92\xe5\xcc"
      "\x25\x99\x6e\x74\xd4\xbe\x39\xbf\xb2\xb2\x3c\xb7\x71\xcb\x5f\xa6\xdc\x72"
      "\x75\x75\xf5\x56\xbd\xe5\xa9\x91\x5b\x9e\x7a\x30\xae\xde\xfa\x40\x47\xfd"
      "\x9f\x06\x1b\x56\x02\x00\x00\x00\x00\x00\x00\x80\x4f\xad\x1f\xe5\xdc\xda"
      "\xf7\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb0\x1b\x14\xc9\x9e"
      "\xfe\xac\x9a\x0e\x0e\xca\xd3\x69\x4d\x24\x99\x4a\xd2\x2e\x66\x86\xab\xb7"
      "\xc7\x1a\xec\xa3\x6b\x0d\x0a\x7f\x1e\x6f\x1c\x00\x00\x00\xb0\x13\x3a\xf5"
      "\x7c\x7f\xf1\xbf\x7e\x61\xb5\xa8\x9e\xf9\x0f\x57\xcf\xfd\x53\x79\x33\xd7"
      "\xb3\x92\xc5\xac\x64\x29\x0b\xb9\x54\xbd\x0b\xe8\x3f\xf5\xb7\xfe\xde\xeb"
      "\x2e\xdd\xbd\xd3\xbd\x56\x4e\x1b\x3b\xfe\xda\xbf\xb6\x15\x47\xbb\x7e\x26"
      "\xdf\x53\xd5\x46\x8d\x3c\x5b\xad\x71\x68\xb8\xc5\xb9\x7c\x33\xdf\xcd\xf1"
      "\xcc\xe4\x42\x96\xb3\x98\xef\x67\x3e\x2b\x59\xc8\x4c\xbe\x51\x95\xe6\x53"
      "\x64\xba\x7e\x7b\x31\x7d\xf7\x4e\x27\x83\x58\x37\xc6\x7b\xf6\x81\xda\x85"
      "\xf5\xb1\x1d\x6d\x94\xcb\xf8\x8e\x54\x91\x74\x72\x39\x8b\x55\x6c\x27\x72"
      "\xb1\x3d\x08\x7d\xf0\x5e\xe1\x48\x63\xb4\x3f\xb6\x93\x75\x23\xde\x2e\xb3"
      "\x53\xbc\x52\xdb\x62\x8e\x2e\xd5\xf3\x72\x8f\x7e\x51\xcf\x77\x87\xe9\x6a"
      "\xcf\xf7\x0e\x33\x32\x5b\xe7\xbe\xcc\xc6\x33\xcd\xbc\x6f\xcc\xfd\x36\x8f"
      "\x93\xf5\x23\xcd\xa5\x35\x7c\x07\x75\x70\x6d\x94\xb2\xba\x7e\xa4\x47\xca"
      "\xf9\xbe\x7a\x5e\xe6\xfa\xa7\x4f\x37\xe7\xdb\x7c\x95\xf6\x60\x26\x7a\x3f"
      "\x2f\x6b\x83\xa3\xef\xf0\xe6\x39\x4f\xbe\xf8\x8f\xbf\x5c\xb8\xd2\xba\x7e"
      "\xf5\xca\xe5\x1b\xc7\x77\xcf\x61\xf4\x88\xd6\x1f\x13\xdd\x46\x26\x9e\xdf"
      "\x52\x26\x96\xca\x4c\xf4\x1e\x23\x13\x53\x8f\x13\xff\x93\xd3\xae\xb3\xd1"
      "\xbf\x8a\x6e\xef\x6a\xf9\x42\xb5\xed\xfe\x2c\xe6\xdb\x79\x3d\x97\xb2\x90"
      "\xd3\x99\xcd\x5c\xce\x64\x36\x5f\xc9\xa9\x74\x73\xaa\x91\xd7\x43\x9b\xe7"
      "\xb5\x3a\xd7\x5a\xdb\x3b\xd7\x8e\x7d\xa1\x2e\x94\xf7\xa4\x9f\x35\xee\x4d"
      "\x3b\x66\xf2\x61\x0d\x65\x5e\x9f\x69\xe4\xb5\x79\xa5\x9b\xae\xda\x9a\x4b"
      "\xd6\xb2\xf4\xec\x16\xb2\x54\xb4\x33\x3a\x4b\xff\x1c\x19\xca\xc4\xe7\xea"
      "\x42\x39\xc6\x8f\x9b\x6f\xb2\xc7\x6e\x7d\x26\xe6\x1a\x99\x78\x6e\xf3\x4c"
      "\xfc\xfa\xbf\xab\x49\x6e\x2c\x5d\xbf\xba\x7c\x65\xfe\x8d\x2d\x8e\xf7\x62"
      "\x3d\x2f\x4f\xdb\x77\x1e\xbc\x36\xff\xe6\x89\xec\xd0\xf6\xd5\xbb\x5b\x1e"
      "\x2f\xcf\x96\xff\xb1\xd2\xbf\x6d\x34\x8f\x8e\xb2\xed\xb9\x41\xdb\xba\x7c"
      "\xb5\xeb\x6f\x5c\x26\xea\xce\x86\x6d\xdf\x3a\x50\x75\x7a\x68\xd8\xf6\x51"
      "\x67\x6a\xd9\xd3\xe1\xdb\x23\x7a\xaa\xdb\x9e\x1f\x35\x4a\xba\x55\xdb\x91"
      "\x46\xdb\x03\x9f\x72\xf2\x7a\x96\x86\x9f\x42\x00\xd8\xc5\xf6\xbd\xb4\xaf"
      "\xdd\xb9\xd7\xf9\x5b\xe7\xbd\xce\x4f\x3a\x57\x3a\xe7\xa7\xbe\x3e\x79\x66"
      "\xf2\xf3\xed\xec\xfd\xeb\xc4\x9f\xf6\xfc\xae\xf5\xdb\xd6\x57\x8b\x97\xf2"
      "\x5e\x7e\x98\xfd\xe3\x8e\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3e\x09\x8a\xbc\x7d\x75"
      "\x7e\x69\x69\x61\xf9\xc6\x5b\xbb\xae\x90\xd6\x13\xee\xf0\xf6\xc8\xa6\x41"
      "\x2a\xfa\x4b\xda\xbb\x63\xdf\x3f\xae\x85\xc9\x6c\xb2\xce\xef\x93\x6c\xb2"
      "\x79\x7b\x1c\x31\x77\x92\x3c\x7c\x9d\xa3\xcb\x53\x9b\xc7\xfc\xe4\x0a\x99"
      "\xd8\x81\x5d\x9e\xcc\x88\xa6\xf3\xc3\x25\x9d\xa4\x35\x8c\x27\xc9\xd5\x5d"
      "\xf2\x03\x77\xc0\xd3\x70\x72\xe5\xda\x1b\x27\x6f\xbc\xf5\xf6\x97\x16\xaf"
      "\xcd\xbf\xb6\xf0\xda\xc2\xf5\x53\x67\x4e\xbf\x72\xba\xfb\xe5\xb9\x5b\x27"
      "\x2f\x2f\x2e\x2d\xcc\xf6\xff\x8e\x3b\x4a\xe0\x69\x58\xfb\x18\x30\xee\x48"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xad\xda\x89\x7f\x65\x31\x62\xd8"
      "\xa2\x37\x86\x7d\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x3e\x9e\xce\xbd\x9a\xbd\xbd\x14\x99\x9b"
      "\x3d\x31\x5b\xd6\xef\xde\xe9\x2e\x95\xd3\xa0\xbc\xb6\xe6\x44\x92\x56\x92"
      "\xe2\x07\x49\xf1\x61\x72\x36\xfd\x29\xd3\x8d\xee\x8a\x87\x8d\xf3\xf2\xbd"
      "\x0f\x7e\xf5\xe2\xbb\xef\x77\xd7\xfa\x9a\x18\xac\xdf\x5a\xb7\xdd\x1f\xfe"
      "\xbd\xba\xba\xcd\xbd\xe8\xd5\x53\x66\x92\xec\xa9\xe7\x1f\x6d\x72\x4b\xfd"
      "\x5d\x6c\xf4\xd7\xdb\x66\x60\x7d\xc5\x70\x0f\xcb\x84\x1d\x1b\x24\x0e\xc6"
      "\xed\xff\x01\x00\x00\xff\xff\xb9\x0c\x04\xda",
      1721);
  syz_mount_image(/*fs=*/0x200000c0, /*dir=*/0x20000040, /*flags=*/0,
                  /*opts=*/0x200001c0, /*chdir=*/3, /*size=*/0x6b9,
                  /*img=*/0x20000b40);
  memcpy((void*)0x20000000, ".\000", 2);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000000ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000280,
         "\023\023w\305\3745\324\024T\325\324\035)\255\032`)"
         "Y\201F\346\276\026nA\255\r\275@T\003<\2373\273\332\202$"
         "\242\363\327r\347cnH\263<\277p\203r\350\361\271\223>"
         "\305\022wC\276\"\006 \236\360-\371\313\362\366\350\200\3238/\000",
         78);
  syscall(__NR_mkdirat, /*fd=*/r[0], /*path=*/0x20000280ul, /*mode=*/0ul);
  memcpy((void*)0x20000400,
         "\023\023w\305\3745\324\024T\325\324\035)\255\032`)"
         "Y\201F\346\276\026nA\255\r\275@T\003<\2373\273\332\202$"
         "\242\363\327r\347cnH\263<\277p\203r\350\361\271\223>"
         "\305\022wC\276\"\006 \236\360-\371\313\362\366\350\200\3238/\000",
         78);
  syscall(__NR_unlinkat, /*fd=*/r[0], /*path=*/0x20000400ul, /*flags=*/0x200ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  loop();
  return 0;
}