// https://syzkaller.appspot.com/bug?id=d4a58de9696a60f9c0d79531cdc0d622e474e786
// 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$hfs arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 00} (length 0x4)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x30008c0 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {66 69 6c 65 5f 75 6d 61 73 6b 3d 30 30 30 30 30
  //          30 30 30 30 30 30 30 30 30 30 30 30 30 30 37 37 37 37 2c 64 69 72
  //          5f 75 6d 61 73 6b 3d 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
  //          30 30 30 30 30 30 30 30 2c 69 6f 63 68 61 72 73 65 74 3d 69 73 6f
  //          38 38 35 39 2d 36 2c 63 6f 64 65 70 61 67 65 3d 63 70 38 35 35 2c
  //          63 72 65 61 74 6f 72 3d 4d dd 71 75 2c 00 ee ab c7 2a 98 32 43 69
  //          50 c6 11 64 98 dd a8 be 60 a9 47 46 ea 68 76 6f 63 d1 d6 39 44 fb
  //          da 2a 93 37 43 9b 37 b6 f2 a6 94 ba 98 f4 00 70 d0 9c 38 90 bd 28
  //          a2 01 8f 1a df e1 e0 a6 30 02 0a 9c ac 1a 43 80 0a 70 a9 32 8d db
  //          2a 2f 2e 20 7d a7 cd 3c af 24 3b 39 ea ff 49 66 b7 aa 97 cb 6c c7
  //          d2 cf c5 9e 7a 97 6d e0 a0 0d 23 c7 ff aa a0 56 cc 4f 8b c7 b4 c0
  //          f9 a2 1d b6 42 b3 e8 32 e3 0a 90 ba 1b 9e 79 33 b7 7c 60 f6 a1 b9
  //          ca 91 28 f0 a2 d0 e2 33 73 c9 d1 5c 79 86 5b ae 97 dd d8 2b 98 00
  //          1b 6a a9 c5 39 0e 4d ea f5 f0 ee 49 2c 68 42 b1 c0 84 86 e4 79 a8
  //          89 49 14 59 a2 57 e9 d4 08 36 34 da c6 cd 58 52 0f 72 e6 c2 f1 1b
  //          bd 5b 03 65 5b b1 86 3b 16 f3} (length 0x14e)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x11 (1 bytes)
  //    size: len = 0x308 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x308)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x2000000007c0, "hfs\000", 4);
  memcpy((void*)0x200000000280, "./file1\000", 8);
  memcpy(
      (void*)0x200000000800,
      "\x66\x69\x6c\x65\x5f\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x37\x37\x37\x37\x2c\x64"
      "\x69\x72\x5f\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x2c\x69\x6f\x63"
      "\x68\x61\x72\x73\x65\x74\x3d\x69\x73\x6f\x38\x38\x35\x39\x2d\x36\x2c\x63"
      "\x6f\x64\x65\x70\x61\x67\x65\x3d\x63\x70\x38\x35\x35\x2c\x63\x72\x65\x61"
      "\x74\x6f\x72\x3d\x4d\xdd\x71\x75\x2c\x00\xee\xab\xc7\x2a\x98\x32\x43\x69"
      "\x50\xc6\x11\x64\x98\xdd\xa8\xbe\x60\xa9\x47\x46\xea\x68\x76\x6f\x63\xd1"
      "\xd6\x39\x44\xfb\xda\x2a\x93\x37\x43\x9b\x37\xb6\xf2\xa6\x94\xba\x98\xf4"
      "\x00\x70\xd0\x9c\x38\x90\xbd\x28\xa2\x01\x8f\x1a\xdf\xe1\xe0\xa6\x30\x02"
      "\x0a\x9c\xac\x1a\x43\x80\x0a\x70\xa9\x32\x8d\xdb\x2a\x2f\x2e\x20\x7d\xa7"
      "\xcd\x3c\xaf\x24\x3b\x39\xea\xff\x49\x66\xb7\xaa\x97\xcb\x6c\xc7\xd2\xcf"
      "\xc5\x9e\x7a\x97\x6d\xe0\xa0\x0d\x23\xc7\xff\xaa\xa0\x56\xcc\x4f\x8b\xc7"
      "\xb4\xc0\xf9\xa2\x1d\xb6\x42\xb3\xe8\x32\xe3\x0a\x90\xba\x1b\x9e\x79\x33"
      "\xb7\x7c\x60\xf6\xa1\xb9\xca\x91\x28\xf0\xa2\xd0\xe2\x33\x73\xc9\xd1\x5c"
      "\x79\x86\x5b\xae\x97\xdd\xd8\x2b\x98\x00\x1b\x6a\xa9\xc5\x39\x0e\x4d\xea"
      "\xf5\xf0\xee\x49\x2c\x68\x42\xb1\xc0\x84\x86\xe4\x79\xa8\x89\x49\x14\x59"
      "\xa2\x57\xe9\xd4\x08\x36\x34\xda\xc6\xcd\x58\x52\x0f\x72\xe6\xc2\xf1\x1b"
      "\xbd\x5b\x03\x65\x5b\xb1\x86\x3b\x16\xf3",
      334);
  memcpy(
      (void*)0x200000000400,
      "\x78\x9c\xec\xdd\x4d\x6b\x13\x41\x1c\x06\xf0\x67\x76\xd3\x66\x6b\x4b\x5d"
      "\x6d\x45\xf0\x20\x52\x0d\xd8\x8b\x68\xbd\x88\x97\x48\xc9\x87\xf0\x24\x6a"
      "\x93\x42\x71\xa9\xa8\x2d\xbe\x20\x58\xc5\x93\x88\xbd\x7b\xf7\xe8\xd5\xcf"
      "\x20\x5e\x14\xc1\x73\x3d\x79\x12\xcf\xf5\x20\x23\xf3\x92\xec\xfb\x26\xd5"
      "\xee\x6e\xaa\xcf\x0f\x1a\x36\x3b\x3b\xb3\xff\xc9\xec\xec\xcc\x04\x9a\x05"
      "\x11\xfd\xb7\x96\x3b\x3b\x6f\x2e\x7e\x53\x7f\x02\x70\xe1\x02\x2f\x2e\x03"
      "\x0e\x00\x0f\x68\x00\x38\x86\xe3\xde\xe6\xfa\xc6\xda\x46\xd0\xeb\x16\x15"
      "\xe4\xe2\x64\xd3\xe4\x12\x30\x39\x45\xea\x98\x95\xf5\x5e\x56\x56\x0f\x36"
      "\x87\xe5\xab\x77\x0d\xcc\x44\xf7\x51\x39\xa4\x94\x57\xbe\xd6\x1d\x04\xd5"
      "\x4e\xf7\x7e\xe9\xc6\x77\x9e\xd2\x77\x82\xa6\xed\x9d\x3a\xd1\xab\x29\xbe"
      "\x3c\x4f\xf7\x9e\xe5\xc7\x14\x80\xad\x32\x82\x19\x2b\xc5\x2d\x25\x76\xb1"
      "\x8b\x07\x98\xad\x2c\x1c\x22\x22\x1a\x4b\xc2\x8c\xef\x8e\x1d\xe7\x67\xec"
      "\xfc\xdd\x71\x80\x96\x1d\x4c\xf4\x6c\x7c\xdc\xc6\xff\x3f\xb5\x5b\x77\x00"
      "\xa5\x93\x85\xa9\x91\xf1\x5f\xb7\xab\x14\xaa\xdd\x0f\xeb\xa4\x70\xbd\xa7"
      "\x97\x70\x2a\xdd\xe9\xaf\x12\xb3\xca\x7a\x9b\x78\x3f\x91\x78\x3f\x09\x73"
      "\x65\xc5\x66\x97\x62\xd8\xaa\x52\xc7\xe2\x4c\xad\xae\x05\xbd\x73\x2b\xb7"
      "\x83\xae\x83\x67\x68\x5b\x91\xc3\xe6\xf5\x6b\xd7\x5c\xba\x7d\xb1\x68\x9b"
      "\xa9\xa2\x17\x32\xd6\xa6\x05\x06\xa5\x4d\xe5\x1e\x22\xb2\x67\x94\xd3\xba"
      "\x0e\x13\xaa\x0e\x4b\x26\xfe\xfb\x00\x62\xf1\xcf\x15\x9e\xb1\x04\xe2\x83"
      "\xf8\x24\xae\x09\x1f\xaf\xd1\x1d\xcc\xff\x1a\x52\xa8\x66\xd2\x2d\xe5\x27"
      "\x5a\xca\xc4\x7f\x3e\xbf\x44\x5d\x4b\x5f\x1d\x05\x7b\xdb\x68\xb7\xdb\x4e"
      "\xec\x90\x23\xfa\x24\x27\xec\x19\xac\x21\xb5\xf4\xe0\xe6\x9d\x71\xd2\x96"
      "\x19\xfb\x82\xc0\x1f\x16\xa7\xce\x75\x34\x91\xcb\xd4\xee\xc2\x90\x5c\x73"
      "\x99\xb9\x96\xf4\xf6\x22\x9c\x9c\x5c\xf3\xb1\x5c\xaa\x36\xab\x6b\xc1\xfb"
      "\xfc\x53\x55\x42\xbc\x12\x57\xc5\x02\xbe\xe3\x1d\x3a\x91\xf9\xbf\xa3\xe2"
      "\x6b\xa1\xb0\x67\x86\xbd\x46\xb4\xcc\x50\xa0\x3f\x71\xd5\x3b\xe3\x2d\x1b"
      "\xd1\x68\xd9\x3b\x91\x1e\x39\x36\xbf\xec\x3c\x36\xfb\xd3\xdd\x65\xf0\x29"
      "\xa6\x3b\xac\xf5\xb3\xf8\x9e\x46\x7b\xf0\x12\x37\x71\x09\xb3\xf7\x1e\x3e"
      "\xba\xe5\x06\x41\xef\xae\xda\xb8\x11\xa8\xcb\x55\x6f\x0c\xf6\xdc\x99\xb1"
      "\x1b\x41\x6f\xe2\x39\x10\x4d\x1a\x97\x0d\x6c\x85\x7b\x9a\x90\x5a\xea\xe0"
      "\xfe\xa0\x54\x65\x60\x8b\xfb\x5a\xa0\xba\x7f\x64\x24\xa9\x8e\x15\xee\x51"
      "\xbd\x6c\x58\x81\x4f\xfe\x36\x1e\x75\x1f\x28\xf5\xa3\x9b\x1e\xa1\x16\x75"
      "\x6e\x74\x3e\xee\xcf\x85\xd4\x9f\x36\xc4\x92\x7e\x49\x29\x2b\xac\xce\xb6"
      "\xed\x18\xc9\xa4\xfa\x6e\x4d\x54\x9d\xb0\xd1\x47\x3b\x3e\x63\xaa\x43\x07"
      "\x9b\x6a\x52\x61\xd6\x7f\xe1\x7a\xa5\x61\x26\x7b\xea\xc5\xcf\x9c\xa7\x8f"
      "\xf8\x45\x80\x2d\x51\xaa\x39\xf6\x60\x05\x17\xe6\x95\x66\x46\x0e\xe0\x50"
      "\xc1\x0a\x2e\xab\xd8\xdc\x15\x5c\x7a\xcd\x95\x5a\x33\xea\x35\xd7\xe9\xb3"
      "\xc0\x99\xd1\xcf\xe8\xdb\x38\xff\x11\xa2\x83\xcf\xb8\xce\xef\xff\x89\x88"
      "\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88\x88"
      "\x0e\x9a\x2a\xfe\x5f\xa2\xee\x3a\x12\x11\x11\x11\x11\x11\x11\x11\x11\x11"
      "\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x1d\x74\xcb\x1e\xcc"
      "\xef\x5e\xa3\xff\xfc\x5f\x8c\xf6\xfc\xdf\xe4\xa3\x58\x5c\xf3\x93\xe0\xfb"
      "\xf2\xfc\xdf\xed\x75\xf0\xf9\xbf\x44\xe5\xfb\x1d\x00\x00\xff\xff\x80\x42"
      "\x76\xa1",
      776);
  syz_mount_image(
      /*fs=*/0x2000000007c0, /*dir=*/0x200000000280,
      /*flags=MS_LAZYTIME|MS_STRICTATIME|MS_NODIRATIME|MS_MANDLOCK|MS_DIRSYNC*/
      0x30008c0, /*opts=*/0x200000000800, /*chdir=*/0x11, /*size=*/0x308,
      /*img=*/0x200000000400);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x42 (4 bytes)
  //    mode: open_mode = 0x22 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000000, "./file1\000", 8);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000000ul,
          /*flags=O_CREAT|O_RDWR*/ 0x42, /*mode=S_IWOTH|S_IRGRP*/ 0x22);
  //  truncate arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    len: intptr = 0x1001bfc (8 bytes)
  //  ]
  memcpy((void*)0x200000000040, "./file1\000", 8);
  syscall(__NR_truncate, /*file=*/0x200000000040ul, /*len=*/0x1001bfcul);
}
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;
}