// https://syzkaller.appspot.com/bug?id=dbbf4362c9a3aa9401f6f4166d819a6415be5301
// 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 __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

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, destlen);
}

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

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

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

error_clear_loop:
  if (need_loop_device) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  errno = err;
  return res;
}

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

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

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

static void setup_sysctl()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", mypid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data))
      printf("write to %s failed: %s\n", files[i].name, strerror(errno));
  }
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

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

void execute_one(void)
{
  NONFAILING(memcpy((void*)0x20000040, "ntfs\000", 5));
  NONFAILING(memcpy((void*)0x2001f200, "./file0\000", 8));
  NONFAILING(memcpy(
      (void*)0x20000980,
      "\x78\x9c\xec\x9d\x4f\x6c\x1b\x59\x1d\xc7\xbf\x33\xb6\xe3\x6c\x92\xb6\x49"
      "\xa8\x50\x16\x0e\x3b\x45\xd6\xaa\x12\x28\xb2\x80\x95\xb8\xd5\xf9\xe3\x34"
      "\xae\xd2\x24\x9b\x38\x55\xb9\xd0\xb8\xc4\xdd\x86\x66\x63\x6f\xec\x6a\x37"
      "\xa8\x62\xcd\x6d\x11\x97\x1c\x11\x97\xed\x71\x85\x38\x44\x82\x03\x12\x12"
      "\xda\x23\x97\x0a\x8e\x08\x71\xe0\xb0\xb7\x5e\x2a\x71\x60\x0f\xa8\x46\xf3"
      "\xe6\xbd\xc9\xfc\xf1\xe4\x8f\x93\xd8\x4d\x7e\xdf\x8f\xd4\xbe\xe7\xf1\xf8"
      "\xcd\x9b\xf9\xfa\x4d\xfc\x7d\x7f\x7e\xf3\x72\x65\x6f\xb1\x3c\xb7\xea\x38"
      "\x8e\x83\x51\x0b\x1e\x5f\x7b\xc9\xc7\x55\x2f\x6d\xa1\x85\xb6\x7e\x2f\xad"
      "\x77\x69\xeb\xd4\xdd\xfc\x9f\x6b\xc0\x7f\x7f\xfb\xcb\xdb\xdf\x6d\xfc\x6d"
      "\x06\x23\xc0\xd5\x77\xfe\xf2\xd1\xb3\xdf\x7f\xe7\xcb\xe6\xf0\xbd\x3f\x5e"
      "\xfd\x73\x16\x2f\x46\x7f\xf2\xf2\xd5\xf7\xbf\x7a\xf1\xcd\x17\x6f\xbf\x7c"
      "\x5d\x7e\xbc\xd9\x70\x36\x1b\xce\x76\xad\xe9\x54\x9c\x87\xb5\x5a\xb3\xf2"
      "\x70\xab\xea\x6c\x6c\x36\x9e\x4c\x3a\xcb\x5b\xd5\x4a\xa3\xea\x6c\x6e\x37"
      "\xaa\x3b\xa1\xb7\x1f\x6d\xd5\xea\xf5\x5d\xa7\xb2\xbd\x71\x65\xa8\xbe\x53"
      "\x6d\x34\x9c\xca\xf6\xae\xf3\xa4\xba\xeb\x34\x6b\x4e\x73\x67\xd7\xa9\x7c"
      "\x50\xd9\xdc\x76\x26\x27\x27\x9d\x2b\x43\x20\xc7\x64\xed\x77\xfd\xae\x01"
      "\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x90"
      "\xb3\xa1\xdd\x46\xd6\x4d\x6f\xf5\xbb\x22\x84\x10\x42\x08\x21\x84\x10\x42"
      "\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\xe9\x9a\xb9\xd2\x42\x31\x8f"
      "\xb7\xfc\xd7\x16\x2c\xcc\xc3\xc2\x17\x16\x80\xd1\x83\xfd\xcc\xba\xff\xc1"
      "\x84\x72\xdc\x5d\xd7\x55\x6e\x42\xfd\x3f\xef\xe7\x0e\x67\xe0\x98\xf5\xcc"
      "\x03\x78\xec\x97\x6f\xe3\x8e\xca\x59\xc8\xa8\x6d\x19\xb4\xca\xf9\xed\x5f"
      "\xbf\xfe\x87\x95\x94\x62\x5f\x07\x30\xd0\xa9\x39\x6e\x3a\x95\xc3\x5d\xcc"
      "\xa1\xac\x5f\xb7\x74\xdd\x2d\x14\x74\x74\x03\x8f\x3b\x3a\x2d\x98\x0d\xfb"
      "\xfa\x8a\xac\x87\xd3\xb1\x5b\xe9\x1b\x23\xb7\x2c\xec\x87\xca\x49\xc5\xce"
      "\xc7\x2f\x67\x34\x94\xf8\xe9\x98\x65\xab\xb4\xdd\x6e\xb7\x8f\x79\x89\xba"
      "\x20\x49\x4d\x22\x03\xea\x2f\x1b\xea\x2f\x1b\xea\x2f\x1b\xea\x2f\x1b\xea"
      "\x2f\x1b\xea\x2f\x9b\xc1\x44\xff\xff\x38\xe2\xff\x53\xda\x0d\xdb\x09\x25"
      "\x25\xf9\xff\xa3\x7c\x79\x47\xff\x6f\xc5\x37\xb9\xfe\xbf\xee\x97\x6f\x63"
      "\xe5\xa4\xfe\xdf\x18\x6e\x9d\x9a\xe3\x0e\xfa\xfe\xff\x2e\x36\xb1\x83\x1d"
      "\xbd\x3d\xa9\x1f\x20\x15\x2e\x06\xd1\x72\x4d\x7a\x23\xed\xd9\xf6\xf3\xf5"
      "\xef\x84\x9c\x86\xa4\xd6\x4c\x64\x40\xfd\x65\x43\xfd\x65\x43\xfd\x65\x43"
      "\xfd\x65\x43\xfd\x65\x63\xc7\xfc\xbf\x7d\x88\xff\xb7\x2f\xb2\xff\xf7\x67"
      "\x30\x78\x69\xd0\xff\x2f\xa0\x86\x0f\x30\x87\x4d\x6c\x41\x3f\xf2\x20\xd1"
      "\xff\x9b\x38\x09\xbe\xff\x8f\x94\x6b\xd2\x1b\x85\x94\xfa\x50\x7f\xfc\xbf"
      "\x95\x3e\xde\x7e\x6c\xff\x97\x9c\xaf\x3a\x34\xa5\x00\xd4\x5f\x36\xd4\x5f"
      "\x36\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f\x36\x71\xff\x9f\xd2\xfe"
      "\xff\x55\xc4\xff\x0f\x04\xfa\x00\x3a\x31\xaa\xfd\xb2\xf1\xff\xf9\x2e\xfd"
      "\x7f\x78\x9e\xbf\x85\xe5\x13\xfb\xfc\x30\xa6\xfc\x6c\x2a\x87\x7b\xa8\x61"
      "\x0b\x4f\xf1\x21\xaa\xaa\xdc\x96\x7f\x1c\x1b\x1b\xfe\x11\xd3\x2d\xf7\x3c"
      "\xcc\x7a\x80\xeb\xea\xdd\x1f\xea\xf3\xbe\x8e\xcf\xad\x71\x58\xde\x51\x32"
      "\xe3\xfa\xf3\x6a\x9b\xb7\x43\xc6\x01\xe0\xd8\x08\xed\x13\x7d\x0f\xba\xaf"
      "\x24\xef\x1f\x3f\x8d\x71\x9d\x6b\x60\x17\x3f\xc7\x13\x54\xb0\xa5\x7a\x23"
      "\xcc\x7c\x84\x3a\x80\x9b\xfe\xfe\x19\x8c\x44\xd6\x57\xa4\xf4\x99\xb7\xfc"
      "\xed\x13\xfe\x6c\x85\x89\xc4\x7e\x08\xb6\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9"
      "\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\xc4\xfd\x7f\x5a\xfb\xff"
      "\xe7\xc3\xf1\xf5\xff\x69\xff\x1b\x53\x8e\x95\x74\x96\xfe\xff\x14\xe3\xfc"
      "\x07\x0b\xed\x87\xbc\x24\x38\xce\x3f\x85\x26\x9a\xd8\xc1\x2c\xaa\x78\xa4"
      "\xb7\x87\xfb\x01\x52\xc7\xee\x07\xf8\x15\xe2\xfd\x00\x6a\xdb\x09\xfb\x01"
      "\x94\x5f\x1f\x32\xc7\xb7\x9e\xb9\xbb\xb7\x3f\x05\x72\x58\x45\x19\x53\x58"
      "\xc4\x2c\xa6\xb0\x82\x59\x3c\x40\x09\x8b\x98\xc3\x12\x56\x70\x17\x53\x28"
      "\xa3\x84\x25\x2c\x9e\x40\xed\x38\xc9\xed\x3f\x20\xbd\x9a\xeb\x90\xd7\xf9"
      "\x79\x9d\xe6\x54\x0d\xca\x58\x41\x09\xd3\x58\x43\x19\x45\x3c\xc0\x02\x4a"
      "\xaa\xde\xe7\x8f\x13\xc8\xb7\x02\xf9\xb6\x26\x87\x39\x94\xb0\xa0\x6a\xb5"
      "\x88\x29\xdc\x45\xb1\x07\xb5\x3a\x20\x1f\xc8\x4f\x03\x98\x35\x79\x7d\xc9"
      "\x73\x58\xc2\x34\xee\xa0\x88\x19\x94\x95\xb6\xb3\xc7\x29\xf6\xcc\x1e\xd3"
      "\xe1\xcd\x5f\xb1\x03\x79\x8d\x65\xea\xb7\xaa\xea\xb6\xa6\x14\x2e\xe3\xc7"
      "\x78\x80\x59\x14\xb1\x8a\x19\xb5\x65\x19\x65\xf5\x4d\x3c\x2f\x96\x03\xf9"
      "\xce\xfa\xde\xc3\x12\x16\xb0\xa6\x94\xed\xbd\xc6\xeb\x81\x7c\x21\xd8\x92"
      "\xfc\xeb\x17\xae\xdf\xd9\xb7\xdd\xc3\xa9\x47\xea\x37\xa2\xf3\x26\xcd\xa9"
      "\xfb\x8a\x8d\xa9\x73\xac\xc3\x61\xb4\x12\xb6\x1f\xe8\x5b\x52\xf7\xbe\x22"
      "\xee\xe3\x01\x56\xb0\x84\xa5\x9e\xdc\x57\x0c\x7b\x81\x7c\xe1\xc8\xfa\x4d"
      "\x61\x01\x0b\x58\xc2\x4c\x4f\xb4\x75\x79\x1e\xc8\x77\x6e\x1f\xd3\xaa\xdd"
      "\xba\xdf\xb6\xe5\xc4\x52\xce\xef\xf7\xdf\xfe\x91\xf5\x5b\x41\x11\xcb\xea"
      "\x6f\xdb\xaa\x6a\x21\xcb\x58\x52\xd7\xb4\x37\x2a\x7f\x99\x50\x3f\x23\x76"
      "\x0e\x45\x4c\xf5\xa1\xdd\x1a\xfe\x6e\x32\x59\x2f\x31\x2b\x75\x4d\xea\xd5"
      "\xef\xb4\x74\xaf\xff\xbf\x13\xdf\xf1\x6e\x80\x39\xd5\x1e\x6e\xe3\x36\x8a"
      "\xea\xb7\xcb\x9a\xba\x76\x0b\xfe\xdf\x92\x55\xf5\xdb\xa1\xa8\xee\xda\xe7"
      "\x42\x60\x24\xa8\x95\xf4\xc6\x1b\x4c\x6f\xe6\x8d\xd2\xff\xc9\x86\xfa\xcb"
      "\x26\xee\xff\x33\xca\xff\xa7\x30\x6a\xc7\xc7\xff\x33\xea\xcf\x51\xbe\x63"
      "\x49\x47\xf9\xff\xe9\xf7\xde\xfb\x28\x98\x9a\xed\xef\x46\xca\xc9\x87\xd6"
      "\x11\x58\xca\x15\x9d\x72\xfc\x5f\x9d\x85\x95\x9a\x54\xaf\x97\x43\xf3\xfa"
      "\x0f\xbe\xff\xe6\x83\xfe\x6f\x3d\x6d\x30\xbf\x37\x1a\x4e\xc7\xec\x19\x95"
      "\xba\xbf\x0f\xef\xbb\x99\xb4\xd7\x6f\xf0\x23\xfd\x11\xf7\x77\xe1\x0f\x90"
      "\x57\xe7\x61\xe9\x0b\x63\xa6\x52\xdc\xd4\xff\x82\x95\x9c\x88\x44\x07\x7c"
      "\xae\xeb\x68\xa5\x0b\xfa\x8a\x87\x99\x0f\x5e\xf0\x0e\xa9\x39\xfe\x98\xe5"
      "\x79\xa1\x7d\x33\x6f\x20\xed\xcd\x33\x18\x0c\xd5\x33\xeb\xd7\x85\x71\x0a"
      "\x24\x92\xed\x77\x05\x48\x5f\xa1\xfe\xb2\xa1\xfe\xb2\xa1\xfe\x17\x1f\xdd"
      "\xa1\xf6\x69\x37\x9f\xa5\xfe\xb2\xa1\xfe\xb2\xc9\xc6\xfc\xff\x80\x1e\xff"
      "\x5f\xef\xb0\xfe\x7f\xa0\xcf\xeb\xff\x83\xf1\xff\x4f\xbc\x2e\x40\x9f\x4b"
      "\xc1\x3f\x4f\x7d\x05\x52\x39\x4c\x63\x13\x4d\x7c\x88\x0a\xea\x89\xeb\xfe"
      "\x0d\xd1\xb8\xfd\xd1\xf0\x7f\x63\xd6\x9c\x4a\x2f\x86\x9f\x66\xff\x9f\x6c"
      "\xa8\xbf\x6c\xa8\xbf\x6c\xa8\xbf\x6c\xa8\xbf\x6c\xa8\xbf\x6c\xa8\xbf\x6c"
      "\xe2\xe3\xff\x59\xed\xff\xff\xda\xe1\xf9\x7f\xd9\x9e\xaf\xff\xb7\xb1\x70"
      "\x52\x9f\x6f\x26\x86\xeb\xd4\x94\x9f\x51\x3e\xbf\x86\x1a\x9a\xea\xf5\x9b"
      "\x30\xef\xbf\x53\x3f\x43\xd2\x3c\x84\x68\x3a\xa6\xcb\x39\x5d\x3f\x03\xdb"
      "\xbf\x6c\xa8\xff\x25\x26\xfe\xd0\xd1\x18\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f"
      "\x36\xd4\x5f\x36\xd4\x5f\x36\x71\xff\x3f\xa8\xfd\xff\x67\x1d\xfc\xff\xe0"
      "\x19\x8c\xff\x9b\x30\xf9\xa7\x8b\xff\x9f\xea\x22\xfe\x7f\x98\x60\x5c\x80"
      "\x69\x54\xb0\x81\x19\x15\x1b\xb0\x01\xcf\x4f\x87\xe3\xe8\xd9\x7e\xae\x15"
      "\x9a\x9f\x7f\x50\xec\x6b\x9d\xf5\xe7\xe7\xbf\x7a\x27\x9c\x6a\xcc\xd1\xec"
      "\xb6\xf7\x81\xfe\xce\x13\x60\xfb\x97\x0d\xf5\x97\x0d\xf5\x97\x0d\xf5\x97"
      "\x0d\xf5\x97\x0d\xf5\x97\x0d\xf5\x97\x4d\xdc\xff\xbf\xa5\xfc\xff\x5b\xf8"
      "\x53\x64\xfd\x7f\x46\xbd\xe7\x7e\xa2\xd4\xb1\xa4\x53\xcc\xff\x77\xa2\x65"
      "\x59\x47\xce\xff\x3f\x93\xe7\x02\xa8\xe3\x66\x53\x39\xac\xa2\x8a\x9f\xe2"
      "\x29\x76\x50\x8d\xf8\xfb\x83\xf6\x51\xf0\xaf\x8f\x39\x61\xaf\x23\xe3\x7f"
      "\x08\xa7\x6e\x69\xb3\x58\xc5\xd8\xd4\x6d\xf5\x7a\xcf\xc4\x42\xd2\x71\x02"
      "\xf6\xfc\xf5\xf7\xee\x7e\x5e\x6f\xc1\x38\xc2\x71\x02\x5a\x81\x98\x35\x13"
      "\x6a\x06\x82\x7b\xfe\x5e\xe4\x9f\xf7\x73\x7f\x50\xd7\xc7\xa4\x66\xbf\x67"
      "\x00\x4a\x28\xc5\xf6\x7f\x35\x9e\xfa\xda\x2d\xd8\xa4\x08\xed\x6f\x87\xf4"
      "\xb3\x75\x7d\x9f\xe3\x20\x5e\x40\x2b\x50\xdf\x92\xd6\x7e\x34\x52\xdf\x7a"
      "\x20\xde\xd8\x75\x7d\xfc\x9b\xa6\xa3\x27\xe1\xd8\xd1\xfd\x92\xce\x29\x5a"
      "\xbf\x8b\xb1\xae\xe2\xa2\xc0\xfb\xbf\x6c\xa8\xbf\x4c\xcc\xcd\x98\xfa\xcb"
      "\x86\xfa\xcb\x86\xfa\x4b\xe4\xe0\x37\x34\xf5\x97\x4d\xdc\xff\x0f\xe9\xf1"
      "\xff\x2f\x3a\x8c\xff\x0f\xf5\x71\xfd\xff\x68\xc8\xff\xa7\xba\xf0\xff\xb6"
      "\x7f\xce\x88\xac\xff\x5f\x43\x1d\x33\xa8\xa0\x81\xaa\xf2\xba\x9d\xe6\xe5"
      "\x9b\x51\xfc\x42\xa8\x46\x88\x5d\x91\x1b\xce\x67\x2a\x35\xf3\xfb\x91\xf1"
      "\xe6\x0f\x38\x3a\x0e\x5f\x0e\x25\x6c\xe3\x11\x6a\x7a\x7f\xd3\xf9\x31\xb2"
      "\xf9\xed\x27\x1f\xff\xe2\x5f\xff\x8c\x9e\xf7\xf9\xfa\x5d\xb6\x7f\xd9\x50"
      "\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\xc4"
      "\xfd\xff\xb0\x8e\xff\xbf\x67\xc7\xe3\xff\x0d\xf7\xc8\xff\xf7\x68\xfc\x5f"
      "\x9d\x9d\xeb\xff\x8b\xf8\x04\x4d\x54\xb1\x8d\x0d\x35\xfe\xfd\x89\x65\xc6"
      "\xbf\x6d\xdc\xb7\x8e\x8e\xeb\x3f\x6f\x79\xff\x5c\xde\xf6\xce\x00\xeb\xfa"
      "\x29\x41\xc3\xfa\xff\x93\xd6\xef\x5d\xdd\x35\x30\x90\xca\x61\x09\x0f\xf1"
      "\x33\x94\xfc\x18\x05\x67\x57\xbe\xad\xca\x7f\x1f\x4f\x55\x5c\x84\x0a\x80"
      "\x6f\xe9\xf2\x1f\xeb\x67\xbb\x9d\xb6\xfe\x83\xa9\x1c\x56\x50\x45\x1d\x15"
      "\xec\xa8\x1e\x96\xf8\xf7\x86\xe3\xfa\xfd\x82\xf7\x7f\xd9\x50\x7f\xd9\x50"
      "\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\xc4\xfd\xff\x88\xf2\xee\x16"
      "\xf2\x1d\xe2\xff\x8f\xf4\x20\xfe\x5f\x38\x2e\x9f\x7d\xec\xb8\x7c\x9f\x5b"
      "\xf1\xb8\x7c\x6a\x5b\x37\xcf\xe3\xf7\x8f\x6f\xf9\xb9\xce\xfe\xb4\x70\xfc"
      "\x4b\xfd\x46\xc2\xf6\x2f\x1b\xea\x2f\x1b\xea\x2f\x8f\xc0\xd3\xd0\x8f\x11"
      "\x21\x92\x5c\x66\xd8\xfe\x65\x43\xfd\x65\x43\xfd\x65\x13\xf7\xff\x57\x0e"
      "\xf1\xff\x57\xe8\xff\x2f\x19\x6c\xff\xb2\xa1\xfe\xb2\xa1\xfe\xb2\xa1\xfe"
      "\xb2\xa1\xfe\xb2\xa1\xfe\xb2\xa1\xfe\xb2\x89\xfb\xff\xab\x87\xf8\xff\xab"
      "\xa2\xfd\xbf\x4d\xff\x4f\x2e\x19\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f\x36\xd4"
      "\x5f\x36\xd4\x5f\x36\xd4\x5f\x36\x71\xff\x7f\xed\x10\xff\x7f\x4d\xb4\xff"
      "\xe7\xf8\x3f\xb9\x6c\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\x50\x7f\xd9\x50"
      "\x7f\xd9\x50\x7f\xd9\xc4\xfd\xbf\xf1\xf1\xbf\x41\xd8\xff\x1f\xf5\xc4\xa0"
      "\xb3\xf2\xff\x97\xd3\x67\xbf\xa9\xb0\xfd\xcb\x86\xfa\xcb\x86\xfa\xcb\x86"
      "\xfa\xcb\x86\xfa\xcb\x86\xfa\xcb\x86\xfa\xcb\x26\xee\xff\xc7\xe8\xff\x05"
      "\xc1\xf6\x2f\x1b\xea\x2f\x1b\xea\x2f\x1b\xea\x2f\x1b\xea\x2f\x1b\xea\x7f"
      "\x59\xe8\x2e\x94\x2b\xf5\x97\x4d\xdc\xff\x8f\xd3\xff\x0b\x82\xed\x5f\x36"
      "\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f\x36\xd4\x5f\x36"
      "\x71\xff\xff\x0d\xfa\x7f\x41\xb0\xfd\xcb\x86\xfa\xcb\x86\xfa\xcb\x86\xfa"
      "\xcb\x86\xfa\xcb\x86\xfa\x5f\x10\xfe\x1f\x00\x00\xff\xff\x81\x2f\x07"
      "\x70",
      2430));
  NONFAILING(syz_mount_image(0x20000040, 0x2001f200, 0, 0x20000000, 0, 0x97e,
                             0x20000980));
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  setup_sysctl();
  install_segv_handler();
  loop();
  return 0;
}