// https://syzkaller.appspot.com/bug?id=badad2dede6b94b2b829498e485cd76573e37d4f
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

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

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

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

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

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

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

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

#define ZLIB_HEADER_WIDTH 2

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

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

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

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

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  } else if (strncmp(fs, "gfs2", 4) == 0 &&
             (strstr(opts, "errors=panic") || strstr(opts, "debug"))) {
    strcat(opts, ",errors=withdraw");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

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

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

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 30 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x2000003 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {6e 6f 64 65 63 6f 6d 70 6f 73 65 00 80 00 00 00
  //          00 00 00 42 00 0f c3 2c 6e 6f 63 61 72 72 69 65 72 2c 6e 6f 64 65
  //          63 6e 6d 70 6f 73 65 00 a5 80 26 3e 00 5a 80 c9 76 89 81 13 cb 9f
  //          46 80 64 2c e8 6d d3 b5 d3 ba 4a 73 9e 66 54 e4 a1 27 7e f2 dd 52
  //          ea 98 c5 ea 63 0d a0 c2 9c d7 3f 8b 9f 4f d0 77 e9 7f 3e c1 ac c1
  //          ac 91 32 61 1f b5 3a 41 b8 fd b6 b9} (length 0x74)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x62c (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x62c)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000040, "hfsplus\000", 8);
  memcpy((void*)0x200000000640, "./file0\000", 8);
  memcpy((void*)0x200000000180,
         "\x6e\x6f\x64\x65\x63\x6f\x6d\x70\x6f\x73\x65\x00\x80\x00\x00\x00\x00"
         "\x00\x00\x42\x00\x0f\xc3\x2c\x6e\x6f\x63\x61\x72\x72\x69\x65\x72\x2c"
         "\x6e\x6f\x64\x65\x63\x6e\x6d\x70\x6f\x73\x65\x00\xa5\x80\x26\x3e\x00"
         "\x5a\x80\xc9\x76\x89\x81\x13\xcb\x9f\x46\x80\x64\x2c\xe8\x6d\xd3\xb5"
         "\xd3\xba\x4a\x73\x9e\x66\x54\xe4\xa1\x27\x7e\xf2\xdd\x52\xea\x98\xc5"
         "\xea\x63\x0d\xa0\xc2\x9c\xd7\x3f\x8b\x9f\x4f\xd0\x77\xe9\x7f\x3e\xc1"
         "\xac\xc1\xac\x91\x32\x61\x1f\xb5\x3a\x41\xb8\xfd\xb6\xb9",
         116);
  memcpy(
      (void*)0x200000000680,
      "\x78\x9c\xec\xdd\x4f\x6b\x1c\xe7\x1d\x07\xf0\xef\xac\xa4\xb5\xa4\x14\x5b"
      "\x76\xec\x26\x2e\x85\x8a\x14\x42\xa9\xa9\xad\x3f\x4e\xaa\x42\xa1\x69\x9a"
      "\x16\x51\x42\x09\xf4\x12\x08\x39\x88\x5a\x8a\x85\xd7\x4e\x90\x94\xa2\xe4"
      "\x50\xd4\xd2\x57\xd0\x57\x90\x52\xd4\x43\x4e\x3d\xf4\x54\x28\xe4\xd0\x73"
      "\xdf\x82\x4a\x8e\x85\x9e\x7c\xd1\xa5\x6c\x99\xd9\x59\xed\xda\x92\xa5\x95"
      "\xed\x6a\xd7\xce\xe7\x03\xb3\xf3\x3c\xf3\xfc\x9d\x9f\x66\x86\x99\x15\xcb"
      "\x04\xf8\xca\x5a\x7e\x37\x13\x3b\x29\xb2\x7c\xed\xed\xed\x32\xbf\xb7\xbb"
      "\xd8\xda\x6b\xb7\xdb\xed\x32\xb3\xbb\xd8\x4a\x72\x2e\x49\x23\x99\x4c\x52"
      "\x94\x5b\xff\x9a\xe4\xcb\x64\x27\x9d\x25\x57\xbb\x05\x99\x48\x51\x55\x3b"
      "\xc2\xfb\xd3\xcd\xfb\x9f\xbf\x77\x75\xad\x93\x9b\xac\x97\xaa\x5d\x71\xd0"
      "\xfe\xb1\xed\xe4\xc2\xd8\x41\xa6\x91\x64\xe6\xd8\xea\x27\x8e\xd6\xdd\xb7"
      "\x62\x3c\xc9\xc2\x09\xfd\x4d\x26\xd7\x9b\x27\x8e\xd7\x19\x73\x36\xc9\xa5"
      "\x7a\x0d\x43\xd7\xee\xfa\xd7\x91\xc5\x4f\x78\x5e\x02\x00\xa3\xac\x48\xc6"
      "\x8e\xda\x3e\x93\x4c\xd7\x37\xeb\xe5\x73\x40\xe7\x8e\xbf\x73\x8f\x9d\x47"
      "\xdd\xeb\x3f\x0b\x76\x86\x3d\x01\x00\x00\x00\x38\x03\x17\xf6\xb3\x9f\xed"
      "\x9c\x1f\xf6\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\xe0\x59\x52\xbf\xff"
      "\xbf\xa8\x97\x46\x37\x3d\x9b\xa2\xfb\xfe\xff\x66\xbd\x2d\x75\xfa\x99\xf6"
      "\xc5\xb0\x27\x00\x00\x00\x00\x00\x00\x00\x00\x4f\xc1\xb7\xf6\xb3\x9f\xed"
      "\x9c\xef\xe6\xdb\x45\xf5\x3f\xff\x57\xaa\xcc\xe5\xea\xf3\x85\x7c\x9c\xcd"
      "\xac\x66\x23\xd7\xb3\x9d\x95\x6c\x65\x2b\x1b\x99\x4f\x32\xd3\xd7\x51\x73"
      "\x7b\x65\x6b\x6b\x63\x7e\x80\x96\x0b\x47\xb6\x5c\x38\x9b\xfd\x05\x00\x00"
      "\x00\x00\x00\x00\x80\xe7\xd4\xef\xb2\xdc\xfb\xff\x3f\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x8c\x82\x22\x19\xeb\xac\x52\x8c\x27\x97\xbb\xe9"
      "\x99\x34\xc6\x93\x4c\x26\x69\x96\xf5\x76\x3a\xe5\xcd\x61\xcf\xf7\x74\xbe"
      "\x76\x68\xcb\x17\x43\x99\x07\x00\x00\x00\x9c\xad\x0b\xfb\xd9\xcf\x76\xce"
      "\x77\xf3\xed\xa2\x7a\xe6\xff\x7a\xf5\xdc\x3f\x99\x8f\x73\x2f\x5b\x59\xcf"
      "\x56\x5a\x59\xcd\xad\xea\xbb\x80\xce\x53\x7f\x63\x6f\x77\xb1\xb5\xb7\xbb"
      "\x78\xb7\x5c\x7a\xfd\x8d\xd5\xeb\x1f\xff\xe7\x54\xd3\xa8\x7a\x3c\x68\x7e"
      "\xd4\xc8\x73\x55\x8d\x2b\x07\x2d\x96\xf3\xb3\xfc\x32\xd7\x32\x9b\x77\xb2"
      "\x91\xf5\xfc\x3a\x2b\xd9\xca\x6a\x66\xf3\x56\x95\x5a\x49\x91\x99\xfa\xdb"
      "\x8b\x99\xee\x3c\x0f\xcf\xb7\xf4\xc6\x03\xb9\x77\x4e\x9a\xeb\xcb\xd5\x4c"
      "\xa6\xb2\x96\xf5\x6a\x6e\xd7\xf3\xab\x7c\x98\x56\x6e\xa5\x51\xed\x43\x55"
      "\xe7\xf8\x11\x7f\x5b\x46\xa7\xf8\x51\x6d\xc0\x18\xdd\xaa\xd7\xe5\x1e\xfd"
      "\xbc\x5e\x8f\x86\x99\x2a\x22\x13\x07\x11\x99\xab\x63\x5f\x46\xe3\xe2\xf1"
      "\x91\x38\xe5\x71\xf2\xf0\x48\xf3\x69\x1c\x7c\x07\x75\xf9\xff\x10\xf3\xe9"
      "\x7a\x5d\xc6\xfa\xad\x91\x8e\xf9\x42\xef\xe8\x7b\xa1\xae\xf2\xa8\x48\x24"
      "\xaf\xfe\xe9\x0f\xf7\x6f\xb7\xee\xdd\xb9\xbd\xb6\x79\x6d\x74\x76\xe9\x31"
      "\x3d\x1c\x89\xc5\xbe\xf3\xf0\xa5\xe3\x8f\x89\xe7\x2c\x12\xcd\x3a\x1a\x9d"
      "\xab\xe8\xe9\xae\x96\xaf\x54\x6d\xcf\x67\x3d\xbf\xc8\x87\xb9\x95\xd5\xbc"
      "\x9e\x9b\x59\xca\x42\x5e\xcb\xcd\xcc\xe7\x07\x79\xad\x2f\xae\x57\x06\x38"
      "\xd7\x1a\xa7\x3b\xd7\xbe\xfd\x9d\x3a\x31\x91\xe4\xa7\xf5\x7a\x34\x94\x71"
      "\xbd\xd8\x17\xd7\xfe\x2b\xdd\x4c\x55\xd6\xbf\xa5\x17\xa5\x4b\x4f\xff\x8a"
      "\x34\xfe\x8d\x3a\x51\x1e\xac\x6f\x8e\xdc\x15\xe9\xe2\x43\xd7\xe6\x6e\x24"
      "\x5e\x3c\x3e\x12\x7f\x6c\x97\x9f\x9b\xad\x7b\x77\x36\x6e\xaf\x7c\x34\xe0"
      "\x78\xaf\xd6\xeb\x32\x02\x3f\x19\xa9\x48\x94\xc7\xcb\xa5\xf2\x8f\x55\xe5"
      "\x1e\x3c\x3a\xca\xb2\x17\x8f\x2c\x9b\xaf\xca\x2e\x1f\x94\x35\x0e\x95\x5d"
      "\x39\x28\x3b\xe9\x4c\x6d\xd6\xf7\x70\x87\x7a\x9a\x5a\xa8\xca\x5e\x3a\x72"
      "\x94\xc5\xaa\xec\xe5\xbe\xb2\xa3\xee\x72\x00\x18\x79\xd3\xdf\x9d\x6e\x4e"
      "\xfd\x7b\xea\x9f\x53\x9f\x4d\xfd\x7e\xea\xf6\xd4\xdb\x93\x6f\x9e\x5b\x3a"
      "\xf7\xcd\x66\x26\xfe\x31\xfe\xb7\xb1\xbf\x34\xfe\xdc\xf8\x61\x91\x7c\x96"
      "\xdf\xf4\x9e\xff\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xc7\xb7\xf9\xc9\xa7\x77\x56\x5a"
      "\xad\xd5\x8d\x13\x12\xdd\x97\xad\x0d\x50\xb9\x18\xa8\xc3\xaf\x76\xe2\x8d"
      "\xb3\x19\xab\x31\xc8\xdf\xeb\x19\x4c\xfc\xb7\xdd\x6e\x8f\xc0\x34\x8e\x8d"
      "\x7c\xf2\x14\xfa\xe9\xbe\x47\xab\xbf\x68\xaa\xec\xfa\x98\x56\xdd\xf7\x61"
      "\x3d\xe1\xe8\x43\xba\x20\x01\x67\xe6\xc6\xd6\xdd\x8f\x6e\x6c\x7e\xf2\xe9"
      "\xf7\xd6\xef\xae\x7c\xb0\xfa\xc1\xea\xbd\x9b\x4b\xdf\x5f\x7c\xfd\xe6\xfc"
      "\xd2\xd2\x8d\xb5\xf5\xd6\xea\x5c\xe7\x73\xd8\xb3\x04\x00\x9e\xa6\xde\x4d"
      "\xff\xb0\x67\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3c\xca\x69"
      "\x7e\x18\x3c\x39\xd8\xef\xff\x0f\x25\x86\xbd\x8f\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\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\xf3\x6d\xf9\xdd\x4c\xec"
      "\xa4\xc8\xfc\xdc\xf5\xb9\x32\xbf\xb7\xbb\xd8\x2a\x97\x6e\xba\x57\x73\x32"
      "\x49\x51\x26\xfe\x9e\xe4\xcb\x64\x27\x9d\x25\x33\x7d\xdd\x15\x8f\x1a\xe7"
      "\xfd\xe9\xe6\xfd\xcf\xdf\xbb\xba\xd6\xeb\x6b\xb2\x5b\xbf\x38\xae\xdd\x60"
      "\x1e\x98\x4b\xe3\xa1\x39\x3d\x69\x7f\x0b\x4f\xdc\x5f\x6f\x0f\x67\x93\x5c"
      "\xaa\xd7\x30\x74\xff\x0b\x00\x00\xff\xff\x07\xb0\xf1\xb5",
      1580);
  syz_mount_image(/*fs=*/0x200000000040, /*dir=*/0x200000000640,
                  /*flags=MS_LAZYTIME|MS_RDONLY|MS_NOSUID*/ 0x2000003,
                  /*opts=*/0x200000000180, /*chdir=*/1, /*size=*/0x62c,
                  /*img=*/0x200000000680);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    type: nil
  //    flags: mount_flags = 0x2000020 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000240, ".\000", 2);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000240ul, /*type=*/0ul,
          /*flags=MS_LAZYTIME|MS_REMOUNT*/ 0x2000020ul, /*data=*/0ul);
  //  link arguments: [
  //    old: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    new: 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 61
  //      61 00} (length 0xfc)
  //    }
  //  ]
  memcpy((void*)0x200000000400, "./file1\000", 8);
  memcpy((void*)0x200000000240,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         252);
  syscall(__NR_link, /*old=*/0x200000000400ul, /*new=*/0x200000000240ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*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=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}