// https://syzkaller.appspot.com/bug?id=11de193de8eac449423a6cd2af14e966d88b4cfb
// 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;
    }
  }
}

void execute_one(void)
{
  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 = 0x2000011 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //      }
  //    }
  //    chdir: int8 = 0x9 (1 bytes)
  //    size: len = 0x6f2 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x6f2)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000340, "hfsplus\000", 8);
  memcpy((void*)0x200000000380, "./file2\000", 8);
  memcpy(
      (void*)0x200000001480,
      "\x78\x9c\xec\xdd\xcf\x6f\x1c\x67\x19\x07\xf0\xef\xac\xd7\x8e\x37\x54\xc1"
      "\x69\x13\x1a\x89\x22\xac\x44\x2a\x48\x11\x89\x13\x2b\x85\x70\x89\x41\x08"
      "\xe5\x50\xa1\xaa\x1c\x7a\xb6\x12\xa7\xb1\xba\x49\x2a\xc7\x45\x49\x41\x34"
      "\x05\x04\x27\x24\x0e\xfd\x03\x0a\x92\x6f\x1c\x10\x12\xf7\xa0\x70\xe1\x52"
      "\x6e\xbd\xfa\x58\x09\xa9\x97\x08\xa1\xa8\x12\x5a\x34\xb3\xb3\xeb\x5d\x7b"
      "\x1d\x7b\xf3\xc3\x4e\xe0\xf3\x89\xc6\xf3\xbe\x33\xf3\xbe\xef\xb3\xcf\xbe"
      "\x33\xe3\x5d\x67\xb5\x01\xfe\x6f\x5d\x3c\x99\xe6\xdd\x14\xb9\x78\xf2\xf5"
      "\x5b\x65\x7d\x7d\x6d\xbe\xbd\xbe\x36\x7f\xa0\xde\xdd\x4e\x52\x96\x1b\x49"
      "\xb3\xbb\x4a\x71\x3d\x29\xee\x25\x0b\xe5\xfe\x62\x60\xc9\xc0\x7a\x8b\x8f"
      "\x96\xcf\xbf\xf9\xe9\xfd\xf5\xcf\xba\xb5\x66\xbd\x54\xc7\x4f\xf4\xdb\x4d"
      "\xef\x2a\xe4\x11\x63\xdc\xa9\x97\xcc\xd6\xfd\xcd\x8e\x6c\x39\xb9\xab\xfe"
      "\xbb\x7d\x55\xe1\xe5\x85\x24\x97\xea\xf5\xb0\xa9\xdd\xf6\x35\x74\x60\x99"
      "\xb4\x13\xf5\x1a\xf6\x5d\x67\x8b\x3b\xe3\x34\xdf\xf6\x7c\x07\x9e\x7d\xd5"
      "\xdd\xe9\xa7\x5f\x4d\x66\xaa\xfb\xe6\x16\x33\xc9\xc1\xfa\xce\xdc\x1c\xd8"
      "\xdc\xd8\xb3\x00\x9f\x92\xb1\xae\x72\x00\x00\x00\xf0\x9c\xfa\xe4\xc6\x7e"
      "\x47\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xcf\x9f\x22\xd5\xf7\xff\x17"
      "\xf5\xd2\xa8\xd7\x99\x4d\xd1\xfb\xfe\xff\xa9\xde\xb6\xba\xfc\x0c\x5a\xd8"
      "\xf5\x91\x77\x9f\x6a\x1c\x00\x00\x00\x00\x00\x00\x00\xb0\x37\xbe\xfe\x20"
      "\x0f\x72\x2b\x87\x7a\xf5\x4e\x51\xfd\xcd\xff\x78\x55\x39\x92\x2f\x3a\xc9"
      "\x97\xf2\x5e\x6e\x66\x29\x2b\x39\x95\x5b\x59\xcc\x6a\x56\xb3\x92\x33\x49"
      "\x66\x06\x3a\x9a\xba\xb5\xb8\xba\xba\x72\xa6\xdf\xb2\x34\xba\xe5\xd9\x91"
      "\x2d\xcf\xee\xd5\x23\x06\x00\x00\x00\x00\x00\x00\x80\xff\x49\xbf\x48\x6b"
      "\xe3\xef\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\xf0\x2c\x28\x92"
      "\x89\xee\xaa\x5a\x8e\x24\xff\x2e\xd7\x99\x49\xa3\x99\x8d\x7d\xb9\x93\xfc"
      "\x23\xc9\xd4\x7e\xc7\x3b\x86\x62\x53\xfd\x3f\x9d\xae\x7d\x0a\x07\x00\x00"
      "\x00\x1e\xcd\xf4\x23\xb4\xf9\xf2\x83\x3c\xc8\xad\x1c\xea\xbd\x3e\xee\x14"
      "\xe5\x6b\xfe\x7c\xa5\xaa\x4f\xe7\xbd\x5c\xcf\x6a\x96\xb3\x9a\x76\x96\x72"
      "\xb9\x7e\x0d\x5d\xbe\xea\x6f\xac\xaf\xcd\xb7\xd7\xd7\xe6\xaf\x95\x4b\x59"
      "\x1f\x8e\xe3\x7b\x9f\x8f\x15\xc6\x54\xdd\xc3\x44\x55\x1b\x35\xf2\xb1\xea"
      "\x88\x56\xae\x64\xb9\xda\x72\x2a\x97\xaa\x60\x2e\xa7\xd1\x1d\xfb\x44\x72"
      "\xac\x17\xcf\x40\x5c\x03\x3e\xfc\x7c\x23\xcc\x0b\x17\x76\x19\x59\xb3\x4e"
      "\x6b\x39\xd8\xef\x46\xbc\x8b\xf0\xe4\xdc\x1d\xaa\x35\x1e\x72\x64\x6b\x23"
      "\xb8\xa4\x9f\x91\xb9\x3a\xb6\xb2\xe5\xe1\x6e\x06\x8a\xea\x8d\x9a\x64\x73"
      "\x26\x76\x7c\x76\x9a\x43\xb5\x99\xaa\xd7\xc9\xfe\x48\x67\xd2\xe8\xbf\xf3"
      "\x73\x64\xe7\x9c\xa7\xb8\x50\xdb\x61\xd4\x9e\x83\xf5\xba\x7c\x3c\xbf\x7e"
      "\xaa\x39\x1f\x57\x3f\x13\x8d\x54\x99\x38\xdb\x9b\x7d\xe5\x39\xf3\xf0\x4c"
      "\x24\xdf\xf8\xcb\x1f\xdf\xba\xda\xbe\xfe\xce\xd5\x2b\x37\x4f\x3e\x3b\x0f"
      "\x69\x07\x13\xdb\x4c\xc4\xcd\x73\x62\x7e\x20\x13\x2f\x3f\xd7\x99\x68\x8e"
      "\x79\xfc\x5c\x95\x89\xa3\xfd\xfa\xc5\xfc\x30\x3f\xce\xc9\xcc\xe6\x8d\xac"
      "\x64\x39\x3f\xc9\x62\x56\xb3\x94\xde\x1b\x8d\x8b\xf5\x7c\x2e\x7f\xce\x3c"
      "\x3c\x53\x0b\x43\xb5\x37\x76\x8a\x64\xaa\x7e\x5e\xba\x57\xd1\xdd\xc4\x34"
      "\x9b\x1f\x54\xa5\xc5\x1c\xaf\xda\x1e\xca\x72\x8a\xdc\xc8\xe5\x2c\xe5\xb5"
      "\xea\xdf\xd9\x9c\xc9\xb7\x73\x2e\xe7\x72\x7e\xe0\x19\x3e\xba\x6d\xdc\xd5"
      "\x63\xab\xce\xfa\xc6\xe6\xb3\xbe\xf7\x4c\xff\x75\x64\xf0\x27\xbe\x59\x17"
      "\xca\xab\xdb\x6f\x36\xae\x72\x0b\x0f\x7b\xc4\x13\x3b\xa5\xe4\x31\x75\xaf"
      "\xfd\x65\x5e\x0f\x0f\xe4\xb5\x3b\xeb\xef\xf7\x8f\x3a\x3c\x70\x1e\xcc\x0d"
      "\x64\xe9\xc5\x5e\x76\x26\x47\x76\x3e\xde\xb5\x71\xd3\x5b\xed\xe5\x18\xbf"
      "\xdc\xe1\x3e\xb1\xb7\x66\xea\x4c\x94\x27\x50\xef\x2e\xd1\x8b\xee\xa5\x6e"
      "\x26\x9a\xd5\xbd\x68\xeb\x3c\xff\x7d\xa7\x6c\x97\xf6\xf5\x4e\xe7\xea\xe2"
      "\xbb\xdb\xf4\x7f\x67\x53\xfd\xd5\x7a\x5d\x4e\xab\xb5\xaf\xed\x74\x74\xcf"
      "\xe8\xa7\xe2\xc9\x2a\x9f\xaa\x17\x33\x5d\x5f\x49\x86\x67\x47\xb9\xef\xa5"
      "\xfe\x55\x66\x60\x5f\x67\x63\x2e\x77\xf7\x0d\xdf\x71\xcb\x76\x47\xab\x7d"
      "\x45\xd1\x3b\x53\x7f\x94\x1b\xd5\x04\xd8\x7a\xa6\x4e\xd5\xbf\xc3\x6d\xea"
      "\xa9\x3f\xc4\xcb\x23\x47\x99\xaf\xda\x1d\x1b\xd8\x37\xf4\xfb\x56\x6e\xa4"
      "\x9d\xcb\x7b\x90\x3f\x00\x1e\xc5\xdf\xdf\xea\x17\x67\x72\x70\xaa\xf5\xcf"
      "\xd6\x27\xad\x8f\x5b\xbf\x6a\x5d\x6d\xbd\x3e\xfd\xfd\x03\xdf\x39\xf0\xca"
      "\x54\x26\xff\x36\xf9\xdd\xe6\xdc\xc4\xab\x8d\x57\x8a\x3f\xe7\xe3\xfc\xbc"
      "\x7a\xfd\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x3c\xa6\x9b\xb7\xdf\x7f\x67\xb1\xdd\x5e"
      "\x5a\x19\x5d\x68\x6c\xbf\x6b\xa8\xd0\xca\xe6\x2d\xdb\xf5\x7c\x60\x74\x3f"
      "\x45\xfd\x85\x3e\xbb\x18\x6b\xe5\xe6\xed\x4e\xa7\xf3\xc1\xee\x02\xdb\xaf"
      "\xc2\x74\x92\xa1\x2d\xd5\xf7\x1c\x3d\x91\x21\x9a\x63\xf4\xd3\xda\x1c\x46"
      "\xb7\x30\x91\xa4\xde\xd2\xf9\x20\xd9\xf3\xfc\xf4\xbe\xd3\x6a\xf4\x31\xbf"
      "\x2d\x0b\xcd\x2d\x33\x6a\x54\x61\x61\x68\xcb\x9f\xb6\x76\xf8\xe1\x98\x11"
      "\x16\xbb\x3b\x2f\x9e\x62\xa1\x91\xbd\x1d\xb4\x9c\x0b\xa3\x76\xed\xe3\x45"
      "\x09\xd8\x13\xa7\x57\xaf\xbd\x7b\xfa\xe6\xed\xf7\xbf\xb5\x7c\x6d\xf1\xed"
      "\xa5\xb7\x97\xae\x4f\x9e\x3b\x77\x7e\xee\xfc\xb9\xd7\xe6\x4f\x5f\x59\x6e"
      "\x2f\xcd\x75\x7f\xee\x77\x94\xc0\xd3\xb0\x71\xd3\xdf\xef\x48\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x80\xdd\x1a\xf5\xc1\x80\xe3\x2f\x8c\xfc\xd0\xc8"
      "\xb8\x9f\xf1\xf0\x3f\x0b\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x27\xe2\xe2\xc9\x34\xef\xa6\xc8"
      "\x99\xb9\x53\x73\x65\x7d\x7d\x6d\xbe\x5d\x2e\xbd\xf2\xc6\x91\xcd\x24\x8d"
      "\x46\x52\xfc\x2c\x29\xee\x25\x0b\xe9\x2e\x99\x19\xe8\xae\xc8\x1f\xee\xa5"
      "\x33\x62\x9c\x8f\x96\xcf\xbf\xf9\xe9\xfd\xf5\xcf\x36\xfa\x6a\x76\x8f\x4f"
      "\x1a\xf5\x7a\x7b\x0f\xdf\x9b\xe4\x4e\xbd\x64\x36\xc9\x44\xbd\x7e\x0c\x43"
      "\xfd\x5d\x7a\xec\xfe\x8a\x7f\xf5\x1e\x43\x99\xb0\x2f\x3a\x9d\xce\xc2\xe3"
      "\xc5\x07\x4f\xc6\x7f\x03\x00\x00\xff\xff\xa1\x49\xfa\x24",
      1778);
  syz_mount_image(/*fs=*/0x200000000340, /*dir=*/0x200000000380,
                  /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_RDONLY*/ 0x2000011,
                  /*opts=*/0x200000000140, /*chdir=*/9, /*size=*/0x6f2,
                  /*img=*/0x200000001480);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    type: nil
  //    flags: mount_flags = 0x2390024 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000240, ".\000", 2);
  syscall(
      __NR_mount, /*src=*/0ul, /*dst=*/0x200000000240ul, /*type=*/0ul,
      /*flags=MS_LAZYTIME|MS_SHARED|MS_SLAVE|MS_POSIXACL|MS_REMOUNT|MS_RELATIME|0x4*/
      0x2390024ul, /*data=*/0ul);
  //  mknod$loop arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 00}
  //      (length 0xfa)
  //    }
  //    mode: mknod_mode = 0xc000 (8 bytes)
  //    dev: proc = 0x1 (4 bytes)
  //  ]
  memcpy((void*)0x200000000080,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         250);
  syscall(__NR_mknod, /*file=*/0x200000000080ul, /*mode=S_IFSOCK*/ 0xc000ul,
          /*dev=*/0x701);
  //  unlink arguments: [
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 00}
  //      (length 0xfa)
  //    }
  //  ]
  memcpy((void*)0x200000000200,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         250);
  syscall(__NR_unlink, /*path=*/0x200000000200ul);
}
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;
}