// https://syzkaller.appspot.com/bug?id=a7cac9d0ffe70c269e582ecfb859da13ae31e5bc
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

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

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

static void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

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

//% 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;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, umount_flags) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, umount_flags))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, umount_flags))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

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

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

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

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      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;
    }
    remove_dir(cwdbuf);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$iso9660 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {69 73 6f 39 36 36 30 00} (length 0x8)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYRES8: ANYRES8 (resource)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {c0 14 ef 44 04 23 6f 9d 64 6f ae 87 87 90 85 13
  //          3a d8 97 52 19 d7 c5 b0 e1 7d d8 6d 11 be de 6a df c3 2e ed 7f 19
  //          fa 34 88 0c ce 7e c7 99 0f 63 e5 d7 99 6e 33 04 4e e8 a4 b2 e6 b4
  //          3a 7c 6d 25 d5 08 06 2b d3 33 3b 86 45 3b c2 f0 2b 26 17 ad ec d3
  //          d5 a0 ea 75 61 f9 f6 3d ea 03 c7 f7 d0 fd ec 63 3a 94 74 1d 77 d3
  //          10 4b a5 7f 74 dc e4 b0 1b e3 42 dc c7 b2 df 0a 45 0a c4 0e 4f be
  //          4b eb d4 f6 0d f3 18 fb 46 9f 80 23 75 dc 7a 08 f4 64 9f 9e d5 b3
  //          84 d3 0b 0f d9 64 d7 4d 91 db 02 3b 61 78 88 d7 b5 6c b0} (length
  //          0xa7)
  //        }
  //        union ANYUNION {
  //          ANYRESOCT: ANYRES64 (resource)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x578 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x578)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000080, "iso9660\000", 8);
  memcpy((void*)0x2000000000c0, "./file0\000", 8);
  *(uint8_t*)0x2000000001c0 = 0;
  memcpy((void*)0x2000000001c1,
         "\xc0\x14\xef\x44\x04\x23\x6f\x9d\x64\x6f\xae\x87\x87\x90\x85\x13\x3a"
         "\xd8\x97\x52\x19\xd7\xc5\xb0\xe1\x7d\xd8\x6d\x11\xbe\xde\x6a\xdf\xc3"
         "\x2e\xed\x7f\x19\xfa\x34\x88\x0c\xce\x7e\xc7\x99\x0f\x63\xe5\xd7\x99"
         "\x6e\x33\x04\x4e\xe8\xa4\xb2\xe6\xb4\x3a\x7c\x6d\x25\xd5\x08\x06\x2b"
         "\xd3\x33\x3b\x86\x45\x3b\xc2\xf0\x2b\x26\x17\xad\xec\xd3\xd5\xa0\xea"
         "\x75\x61\xf9\xf6\x3d\xea\x03\xc7\xf7\xd0\xfd\xec\x63\x3a\x94\x74\x1d"
         "\x77\xd3\x10\x4b\xa5\x7f\x74\xdc\xe4\xb0\x1b\xe3\x42\xdc\xc7\xb2\xdf"
         "\x0a\x45\x0a\xc4\x0e\x4f\xbe\x4b\xeb\xd4\xf6\x0d\xf3\x18\xfb\x46\x9f"
         "\x80\x23\x75\xdc\x7a\x08\xf4\x64\x9f\x9e\xd5\xb3\x84\xd3\x0b\x0f\xd9"
         "\x64\xd7\x4d\x91\xdb\x02\x3b\x61\x78\x88\xd7\xb5\x6c\xb0",
         167);
  sprintf((char*)0x200000000268, "%023llo", (long long)-1);
  memcpy(
      (void*)0x200000000640,
      "\x78\x9c\xec\xdd\xdf\x6e\xd3\xc8\x1e\xc0\xf1\x9f\x4b\x0a\x25\x47\x42\xe8"
      "\x70\x84\x50\x55\x60\x28\xe7\x48\x45\x2a\xc1\x49\x21\x28\xe2\xca\xc7\x99"
      "\xa4\x03\x8e\x1d\xd9\x0e\x6a\xaf\x50\x45\x53\x54\x91\xc2\x8a\xb2\xd2\xb6"
      "\x37\xbb\xdc\xb0\xbb\xd2\xee\x43\x70\xbb\x0f\xb1\x4f\xb0\xef\xb1\x57\x68"
      "\xdf\x60\xbb\xb2\x9d\xf4\x0f\x6d\x1a\xa0\x6d\x82\xca\xf7\x13\xed\x8e\x63"
      "\x8f\x67\x7e\xe3\x44\xfe\x69\x4a\x6c\x0b\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x10\xcb\xad\xda\x76\xd1\x12\xcf\xf8\xad\x05\xd5\x9f\x5b\x0d"
      "\x83\xc6\xce\xdb\xee\xde\xfb\x56\xc8\xad\x3d\xc5\x21\xfd\x8a\x58\xc9\x7f"
      "\x32\x31\x21\x57\xb2\x55\x57\xfe\x23\x32\xd6\xdd\x7c\x39\xf9\xdf\xb4\x4c"
      "\x65\xef\xa6\x64\x22\x29\x26\x64\xf3\x5f\x97\x2f\x3e\xb8\x94\x1b\xeb\xed"
      "\x7f\x48\xc0\x43\xb1\xbe\xb1\xf9\x7c\xa9\xd3\x69\xbf\x1a\x75\x20\x27\xe8"
      "\xea\xb9\xfe\xdb\xea\xda\x37\x51\x60\x1a\x4e\x5d\x2b\x13\x05\xaa\x52\x2e"
      "\xdb\x77\xe6\x6b\x91\xaa\x19\x4f\x47\x8b\x51\xac\x1b\xca\x0d\xb5\x13\x07"
      "\xa1\x9a\x71\x6f\xa9\x62\xa5\x32\xa7\x74\x61\x31\x68\xf9\xf5\xaa\xe3\xe9"
      "\xde\xca\xfb\xb7\x4b\xb6\x5d\x56\x0f\x0b\x4d\xed\x84\x51\xe0\xdf\x79\x58"
      "\x88\xdc\x79\xe3\x79\xc6\xaf\xa7\x75\x92\xcd\x49\x9d\xfb\xc9\x17\xf1\x91"
      "\x89\x55\xac\x9d\x86\x52\x2b\xab\x9d\xf6\xdc\xa0\x01\x24\x95\x8a\x1f\x53"
      "\xa9\x34\xa8\x52\xc9\x2e\x95\x8a\xc5\x52\xa9\x58\xbe\x57\xb9\x77\xdf\xb6"
      "\x73\xfb\x56\xd8\x1f\x90\x7d\x35\x7a\x5f\xda\x3f\xfe\xdc\xda\x1a\xd4\x1f"
      "\x4e\xa3\xe3\x3d\x81\x03\x47\x30\xd6\xcd\xff\xe2\x89\x11\x5f\x5a\xb2\x20"
      "\xea\xc0\x97\x2b\x55\x09\x25\x90\x46\x9f\xed\x5d\xbd\xfc\xff\xbf\x3b\xfa"
      "\xd0\x7e\x77\xe7\xff\x5e\x96\xbf\xb2\xb3\x79\x52\xd2\xfc\x7f\x2d\x7b\x77"
      "\xad\x5f\xfe\xef\x13\xcb\xb1\xbf\xac\x7e\x5b\xd6\x65\x43\x36\xe5\xb9\x2c"
      "\x49\x47\x3a\xd2\x96\x57\xc3\x8a\xe8\x0b\x79\xd5\x45\x8b\x2f\x46\x22\x09"
      "\xc4\x48\x43\x9c\x74\x8d\xea\xae\x51\x52\x91\xb2\x94\xc5\x96\x27\x32\x2f"
      "\x35\x89\x44\x49\x4d\x8c\x78\xa2\x25\x92\x45\x89\x24\x16\x9d\x7e\xa3\x5c"
      "\x09\x45\x8b\x23\xb1\x04\x12\x8a\x92\x19\x71\xe5\x96\x28\x29\x4a\x45\x2a"
      "\x32\x27\x4a\xb4\x14\x64\x51\x02\x69\x89\x2f\x75\xa9\x8a\x93\xb6\xb2\x22"
      "\xab\xe9\x71\x9f\x3b\xe4\x33\xda\xae\x54\xec\x3b\x8c\x7c\xef\x7b\xd7\x96"
      "\xd2\x21\xa3\x3d\xce\xfc\x8f\xaf\xd5\xb1\x9e\xbf\x81\xa3\xd8\xea\xe5\xff"
      "\x85\xdc\xa8\x43\x01\x00\x00\x00\x00\x00\x27\xc4\x4a\xff\xfa\x6e\x89\xc8"
      "\xb8\x5c\x4d\x97\x6a\xc6\xd3\xf6\xa8\xc3\x02\x00\x00\x00\x00\x00\xc7\x28"
      "\x99\xf9\xcb\x54\x52\x8c\x27\x4b\x57\xc5\x62\xfe\x0f\x00\x00\x00\x00\xc0"
      "\x69\x63\xa5\xd7\xd8\x59\x22\x92\x97\xeb\xd9\xd2\x8a\x58\xe9\xe5\x52\xfc"
      "\x11\x00\x00\x00\x00\x00\x80\x53\x22\xfd\xf7\xff\x6b\x49\x91\xde\x03\xe5"
      "\xba\x58\xdb\xb7\x4b\x61\xfe\x0f\x00\x00\x00\x00\xc0\x29\xf1\xd3\xc0\x7b"
      "\xec\x47\xcd\x73\xd6\xef\x7f\x49\x18\x8e\x5b\x6f\x9a\x0b\xff\xb5\xd6\x9c"
      "\xa4\x9e\xb3\x76\x26\xdb\x2f\x2b\xde\xec\xb4\x18\xd7\x26\xad\x0b\xdd\x46"
      "\xd2\xa2\x9c\x15\xb9\x9c\xab\xa7\xac\x89\xac\xd2\xf6\x4d\x30\xdf\x77\x8b"
      "\x95\x41\x71\x58\x07\x05\xf0\xc3\x76\x00\x32\x38\x80\x4b\x39\xf9\x45\x6e"
      "\x64\x75\x6e\x2c\x67\xe5\x72\x6f\x4b\xd6\x4b\xbe\x66\x3c\x5d\x70\x03\xef"
      "\x41\x51\x1c\xe7\xc2\x58\xac\x17\xe2\x6f\x5f\xac\x7e\x27\xe9\xf0\x7f\xf6"
      "\x1b\x17\x2c\x59\x59\xed\xb4\x0b\x4f\x5f\x76\x96\xd3\x58\xd2\x81\xbf\x59"
      "\xb3\xb2\xe6\xac\x4f\x88\xe5\x75\x7a\xbf\x85\xf4\x9a\x8b\x3d\x23\xf6\xfe"
      "\xce\x56\x8f\xa7\x17\x62\x74\xfb\xcd\x67\xfd\xda\xbb\xc7\xdf\x7d\x56\xc2"
      "\xd8\x27\xf4\xf9\x56\xa6\xb3\x3a\xd3\xdd\x3b\xde\xe6\xf7\x8e\x7f\xa2\x76"
      "\xbe\xdb\xc8\xce\xe8\x93\x6d\xdb\x51\x4c\xc8\x6a\xa7\x5d\x3c\xe2\xc8\xdf"
      "\xca\xcd\xac\xce\xcd\x99\x9b\x59\xf1\x61\x14\xc6\xd3\xa5\x42\xbf\xcf\xa0"
      "\x7b\x2c\x4a\xbb\xa3\xf8\xac\x63\xb1\x3f\x0a\x6b\xdf\xb1\x18\x14\xc5\x5c"
      "\xbf\x28\xce\x7e\x5c\x14\x00\x30\x2a\x2b\x7d\xb2\xd0\x4e\xfe\xdf\x97\x77"
      "\x3f\xe3\x5c\xfb\x79\xd9\x5d\x3e\x31\xbb\xbf\x95\x99\xac\xce\xcc\x64\x7a"
      "\x62\xcd\x4d\x1e\x90\x57\xec\x41\x67\x74\xfb\x88\xd9\xed\xb7\x7d\xcf\x40"
      "\x3a\x20\x8a\x62\x12\x45\xd2\xef\xaf\xdb\xfd\x66\x59\xf5\x5d\xb2\xc3\xbb"
      "\xbe\xfd\x46\x5e\xc9\x4a\x0e\xe1\x99\xd7\x6b\xdf\xc8\xe5\xf5\x8d\xcd\xdb"
      "\xab\x6b\x4b\xcf\xda\xcf\xda\x2f\x4a\xa5\xb9\xb2\x7d\xd7\xb6\xef\x95\x64"
      "\x3c\x1d\x46\xb7\xd8\x15\xe9\xd6\x39\x72\x0f\x00\x20\x33\xf8\x19\x3b\x03"
      "\x6b\x58\x77\xb3\x59\xf5\x45\x91\x83\x67\xd5\xff\xde\xfe\x49\x41\x41\x9e"
      "\xca\x4b\xe9\xc8\xb2\xcc\xa6\x57\x1b\xa4\xbf\x38\x38\xb0\xd5\xfc\xae\x9f"
      "\x21\xcc\x0e\x98\xb5\xe6\xd3\x34\x99\x3d\xe1\x65\xf6\x90\xb9\xe5\xd9\xf4"
      "\x2a\x87\x5e\xbb\xa5\x43\xeb\xee\x8d\x61\x6e\x18\x1f\x05\x00\x00\x43\x33"
      "\x3d\x20\x0f\x7f\x4c\xfe\x9f\x1d\x30\xef\xde\x9b\xcb\xf7\xce\x8e\xcf\x4a"
      "\xbf\xba\xc5\xa1\x1f\x0b\x00\x00\xbe\x16\x3a\x7c\x6f\xe5\xe3\x1f\xad\x30"
      "\x34\xcd\x27\xc5\x4a\xa5\xe8\xc4\xf3\x5a\x85\x81\xfb\x48\x85\xa6\x5a\xd7"
      "\xca\xf8\xb1\x0e\xdd\x79\xc7\xaf\x6b\xd5\x0c\x83\x38\x70\x03\x2f\x59\x78"
      "\x6c\xaa\x3a\x52\x51\xab\xd9\x0c\xc2\x58\xd5\x82\x50\x35\x83\xc8\x2c\xa4"
      "\x4f\x7e\x57\xdd\x47\xbf\x47\xba\xe1\xf8\xb1\x71\xa3\xa6\xa7\x9d\x48\x2b"
      "\x37\xf0\x63\xc7\x8d\x55\xd5\x44\xe7\x55\xb3\xf5\x7f\xcf\x44\xf3\x3a\x4c"
      "\x77\x8e\x9a\xda\x35\x35\xe3\x3a\xb1\x09\x7c\x15\x05\xad\xd0\xd5\x05\xa5"
      "\x22\xad\x77\x55\x34\x55\xed\xc7\xa6\x66\x92\x45\x5f\x35\x43\xd3\x70\xc2"
      "\x45\xf5\x38\xf0\x5a\x0d\xad\x2c\xb1\x24\x34\xcd\x38\xc8\x1a\xec\xf5\x65"
      "\xfc\x5a\x10\x36\xd2\x66\x0b\xa3\x3e\xd8\x00\x00\x7c\x21\xd6\x37\x36\x9f"
      "\x2f\x75\x3a\xed\x57\x27\xb8\x30\xea\x31\x02\x00\x80\xbd\xc8\xd2\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x7c\xf9\x86"
      "\x71\xfd\x1f\x0b\xa3\x58\xe8\xdd\x80\x7e\x08\x7d\xf5\x6e\x05\x3d\xea\x21"
      "\x9f\xf0\x82\x35\xd4\x01\xe6\x44\x64\x94\x43\x1e\x78\xea\xf8\xfe\x44\x4f"
      "\x4c\x00\x4e\xdc\x3f\x01\x00\x00\xff\xff\xdb\xb4\x4a\x2e",
      1400);
  syz_mount_image(/*fs=*/0x200000000080, /*dir=*/0x2000000000c0, /*flags=*/0,
                  /*opts=*/0x2000000001c0, /*chdir=*/1, /*size=*/0x578,
                  /*img=*/0x200000000640);
  //  open_by_handle_at arguments: [
  //    mountdirfd: fd (resource)
  //    handle: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {20 00 00 00 02 00 00 00 1d} (length 0x9)
  //        }
  //      }
  //    }
  //    flags: open_flags = 0x0 (8 bytes)
  //  ]
  memcpy((void*)0x200000000180, "\x20\x00\x00\x00\x02\x00\x00\x00\x1d", 9);
  syscall(__NR_open_by_handle_at, /*mountdirfd=*/0xffffff9c,
          /*handle=*/0x200000000180ul, /*flags=*/0ul);
}
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;
  use_temporary_dir();
  loop();
  return 0;
}