// https://syzkaller.appspot.com/bug?id=f71a46bd4d0e712cfa3969985a0a12fc43962397
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.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/futex.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 thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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");
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 4; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0));
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

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_call(int call)
{
  switch (call) {
  case 0:
    //  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 = 0xa08802 (8 bytes)
    //    opts: ptr[inout, array[ANYUNION]] {
    //      array[ANYUNION] {
    //      }
    //    }
    //    chdir: int8 = 0xff (1 bytes)
    //    size: len = 0x6c8 (8 bytes)
    //    img: ptr[in, buffer] {
    //      buffer: (compressed buffer with length 0x6c8)
    //    }
    //  ]
    //  returns fd_dir
    memcpy((void*)0x200000000000, "hfsplus\000", 8);
    memcpy((void*)0x200000000400, "./file0\000", 8);
    memcpy(
        (void*)0x2000000011c0,
        "\x78\x9c\xec\xdd\xdd\x6b\x5c\x69\x1d\x07\xf0\xef\x99\x4c\x26\x49\x85"
        "\x36\xeb\xb6\x75\x95\x05\xc3\x2e\xac\x62\xb1\x4d\x1a\xb3\x1a\x11\x1a"
        "\xbd\x90\x5e\x2c\xb2\x54\x70\x11\xbc\x09\x6d\xda\x86\x4e\xbb\x4b\x9a"
        "\x95\xec\x22\x1a\xdf\xbd\xd3\x8b\xfd\x03\xd6\x8b\x5c\x08\xde\x28\x08"
        "\x5e\x16\x56\xf0\x4a\xbd\x10\x16\xef\x82\x88\x14\x04\x2f\x5c\x6f\x72"
        "\x57\x99\x33\x67\x92\x49\x93\x99\xce\xa4\x6d\xd2\xba\x9f\x4f\x38\x73"
        "\x9e\x73\xce\xf3\xf2\x3b\xbf\x33\xe7\x9c\x79\x21\x4c\x80\x0f\xad\x8b"
        "\x67\x52\xbf\x93\x22\x17\xcf\xbc\xb2\xd6\x5a\xde\xdc\x98\x6d\x6e\x6e"
        "\xcc\x8e\x55\x9b\x9b\x49\x5a\xe5\x5a\x52\x6f\xcf\x52\xdc\x4a\x8a\xf7"
        "\x92\x85\xb4\xa7\x7c\xbc\xb5\xb2\xaa\x5f\xf4\x1a\xe7\x9d\xe5\xf9\x4b"
        "\xef\x7f\xb0\x79\xb7\xbd\x54\xaf\xa6\xb2\x7e\xad\x5f\xbb\xc1\xac\x57"
        "\x53\xa6\x92\x8c\x54\xf3\xbd\x46\x0f\xd4\xdf\xe5\x2a\xd6\x41\x7d\xa9"
        "\x9a\x2f\x6e\xaf\x29\xb6\xf7\xb0\x95\xb0\x17\x3b\x89\x83\xa3\x76\x6f"
        "\x8f\xf5\x61\x9a\x3f\xe4\x79\x0b\x3c\x09\x8a\xf6\x7d\x73\x8f\xc9\xe4"
        "\x58\x92\xf1\xea\x75\x40\xaa\xab\x43\xed\x70\xa3\x1b\xce\x68\x7a\xec"
        "\x4c\x97\xa1\xae\x72\x00\x00\x00\xf0\x94\x3a\xb1\x95\xad\xac\xe5\xf8"
        "\x51\xc7\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4f\x93\x22\x13"
        "\x23\xe5\xac\x3d\xd5\x3a\xe5\xa9\x14\x9d\xdf\xff\x6f\x54\xeb\x52\x95"
        "\x2f\xd5\x8e\x38\xe6\x87\x71\xe7\xa8\x03\x00\x00\x00\x00\x00\x00\x00"
        "\x80\x47\xe0\x93\x5b\xd9\xca\x5a\x8e\x27\xf9\x6b\x51\x4f\xee\xb5\xbf"
        "\xd9\x7f\xa1\x7c\x3c\x59\x3e\x7e\x24\x6f\xe6\x76\x96\xb2\x92\xb3\x59"
        "\xcb\x62\x56\xb3\x9a\x95\xcc\x24\x99\xec\xea\xa8\xb1\xb6\xb8\xba\xba"
        "\x32\x33\x40\xcb\xf3\xfb\xb6\x3c\xdf\x2f\xca\x9f\xdf\xed\xb5\xe5\x37"
        "\x0f\xb1\xef\x00\x00\x00\x00\x00\x00\x00\xf0\x7f\xe4\x07\xb9\x58\x7e"
        "\xff\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4f\x8c"
        "\x22\x19\x69\xcf\xca\xe9\x64\xa7\x3c\x99\x5a\x3d\xc9\x78\x92\x46\xab"
        "\xde\x7a\xf2\x97\x4e\x39\xc9\xe8\xd1\x46\x3d\x90\x62\xbf\x95\x77\x0e"
        "\x3f\x0e\x00\x00\x00\x78\x28\xe3\x07\x68\x73\x62\x2b\x5b\x59\xcb\xf1"
        "\xce\xf2\xbd\xa2\x7c\xcf\x7f\xba\x7c\xbf\x3c\x9e\x37\x73\x2b\xab\x59"
        "\xce\x6a\x9a\x59\xca\x95\xea\x3d\x74\xeb\x5d\x7f\x6d\x73\x63\xb6\xb9"
        "\xb9\x31\x7b\x73\x73\x63\xb6\x1c\xf8\x5b\xf7\xda\xda\xfd\x7c\xf9\xdf"
        "\x43\x85\x51\xf6\x98\xf6\x67\x0f\xfb\x8f\xfc\x5c\x59\x63\x22\x57\xb3"
        "\x5c\xae\x39\x9b\xcb\x65\x30\x57\x52\x2b\x5b\xb6\x3c\x57\xc5\xb3\x3d"
        "\xed\x1e\xe4\xfb\xad\x98\x26\x2e\x54\x06\x8c\xec\x4a\x35\x6f\x0d\xf6"
        "\x8b\x5e\x9f\x22\x3c\x0a\xb5\x61\x1b\x4c\x96\x8d\x46\xb7\x33\x32\x5d"
        "\xc5\xd6\xea\xe8\x99\xfe\x99\x78\xe0\xd1\xa9\xf7\x1d\x69\x26\xb5\xed"
        "\x4f\x7e\x4e\xf6\x19\xa9\xb3\x4b\xc5\x90\x39\x3f\xd6\x69\x97\xe4\x27"
        "\xf7\xe5\xfc\xc2\x3f\x7f\xf5\xcd\x01\xbb\x79\x0c\xb6\x33\x51\x4b\x99"
        "\x89\xf3\xa9\xe5\x3f\xd5\xb6\xd3\x9b\x1b\xb3\x23\xe9\x99\xf3\xe4\x53"
        "\xbf\xfb\xf5\x6b\xd7\x9b\xb7\x6e\x5c\xbf\x7a\xfb\xcc\x63\x7b\x1a\x1d"
        "\x96\xfb\x9f\x13\xb3\x5d\xe7\xe1\xc7\xfa\x3f\xfb\x9e\xe8\x4c\x0c\x14"
        "\xce\xef\x1b\x5d\x0b\xd3\x65\x26\x4e\x6d\x2f\x5f\xcc\x57\xf3\xf5\x9c"
        "\xc9\x54\x5e\xcd\x4a\x96\xf3\xed\x2c\x66\x35\x4b\xa9\xae\x8c\x59\x6c"
        "\x8d\x31\x56\x2d\x74\x65\x29\xd9\x93\xa9\x85\x5d\x4b\xaf\x3e\x28\xac"
        "\x46\x75\x5c\xda\x57\xd1\x41\x62\x9a\xca\x58\x59\x5a\xcc\x0b\x65\xdb"
        "\xe3\x59\x4e\x91\xd7\x73\x25\x4b\x79\xb9\xfc\x3b\x9f\x99\x7c\x3e\x73"
        "\x99\xcb\x7c\xd7\x11\x3e\xd5\xf3\x08\x97\xf9\x2b\xaf\xb4\xb5\xe1\xce"
        "\xfa\x17\x3f\x9d\x9d\xf4\xff\xb4\x75\xa5\x1e\xac\x5d\xf2\xc7\x41\x2b"
        "\x0e\xaf\x7d\x4b\x6d\xe5\xf5\x99\xae\xbc\x76\x5f\x73\x27\xcb\x6d\xdd"
        "\x6b\x76\xb2\xf4\xd1\x3c\xf8\x7e\x34\xe4\xb5\xb1\xfe\x89\xaa\xd0\x1a"
        "\xe3\x87\x07\xb9\x6d\x3c\x36\xf7\x67\x62\xa6\x2b\x13\xcf\xf6\xbf\x22"
        "\xfc\xb2\x3c\x37\x6e\x37\x6f\xdd\x58\xb9\xbe\xf8\x46\x8f\xfe\xd7\xef"
        "\x5b\x7e\xa9\xeb\x4b\x87\x1f\x3f\xce\x3b\xf3\xd0\x1a\xe5\xb1\x1f\xaf"
        "\xee\xa2\xbb\x9f\x1d\xad\x6d\xcf\x6e\xdf\x61\x77\xe7\xab\x51\x7d\xe3"
        "\xd2\xde\x56\xdb\xb3\xed\x54\xb9\xad\x28\x3a\x67\xea\xd7\xf6\x39\x53"
        "\x5b\x19\x9f\x2f\x6b\x9f\xde\xb7\xa7\xf3\x69\xec\x3a\xb3\xb6\xb7\x8d"
        "\x54\x91\xff\xed\xef\x5d\xed\x76\xbd\xde\xca\xeb\x7f\x3a\xec\x4c\x02"
        "\x70\x20\xc7\x3e\x73\xac\x31\xf1\xaf\x89\x3f\x4f\xbc\x3b\xf1\xa3\x89"
        "\xeb\x13\xaf\x8c\x7f\x65\xec\x0b\x63\xcf\x37\x32\xfa\x87\xd1\x2f\xd6"
        "\xa7\x47\x5e\xaa\x3d\x5f\xfc\x36\xef\xe6\xbb\x3b\xef\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\x83\xbb\xfd\xd6\xdb\x37\x16\x9b\xcd\xa5\x95\xfd\x0b"
        "\xb5\xde\x9b\x1e\x6d\xa1\xa8\x7e\xc8\xa7\x57\x9d\x7a\x26\x72\x08\x61"
        "\x1c\x66\xa1\x48\xd6\x9b\xf7\x46\x86\x6c\xd5\xe8\x7f\xe0\x72\x58\x7b"
        "\xd1\x89\xe3\x40\xcd\x3b\x8d\x07\x6d\x75\xe1\x1f\xed\xfa\xf7\x6f\x7a"
        "\x6d\x61\x4f\xe5\x9f\x7d\xae\x5f\x87\x73\xd7\x06\x1f\xf4\x43\x52\x18"
        "\x49\x52\xad\xf9\x5e\xb2\xf3\xfc\xa9\x0e\x51\xfb\x97\xd0\xbe\xf1\xdf"
        "\xc3\xbd\x2c\x01\x87\xe0\xdc\xea\xcd\x37\xce\xdd\x7e\xeb\xed\xcf\x2e"
        "\xdf\x5c\xbc\xb6\x74\x6d\xe9\xd6\xe8\xdc\xdc\xfc\xf4\xfc\xdc\xcb\xb3"
        "\xe7\xae\x2e\x37\x97\xa6\xdb\x8f\x47\x1d\x25\xf0\x38\xec\xbc\x1e\x38"
        "\xea\x48\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x41\x0d\xfe\xaf\x02"
        "\x63\x07\xfe\x4f\x83\xae\xe1\xa6\x8e\x70\x57\x01\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x80\xa7\xd4\xc5\x33\xa9\x8f\xa6\xc8\xcc\xf4\xd9\xe9\xd6\xf2\xe6\xc6"
        "\x6c\xb3\x35\x75\xca\x3b\x35\xeb\x49\x6a\xb5\xa4\xf8\x4e\x52\xbc\x97"
        "\x2c\xa4\x3d\xe5\x44\x57\x77\x45\xaf\x71\xde\x59\x9e\xbf\xf4\xfe\x07"
        "\x9b\x77\x77\xfa\xaa\x77\xea\xd7\xfa\xb5\x1b\xcc\x7a\x35\x65\x2a\xc9"
        "\x48\x35\xdf\xcf\xe4\x01\xfa\xbb\xdc\xa7\xbf\xc1\x14\xdb\x7b\xb8\x50"
        "\x6b\xaf\x59\x78\xa8\xfe\xe0\x11\xf9\x5f\x00\x00\x00\xff\xff\x8b\x53"
        "\xff\x57",
        1736);
    syz_mount_image(
        /*fs=*/0x200000000000, /*dir=*/0x200000000400,
        /*flags=MS_I_VERSION|MS_SILENT|MS_RELATIME|MS_NOSUID|MS_NODIRATIME*/
        0xa08802, /*opts=*/0x200000000180, /*chdir=*/-1, /*size=*/0x6c8,
        /*img=*/0x2000000011c0);
    break;
  case 1:
    //  setxattr$incfs_metadata arguments: [
    //    path: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    name: ptr[in, buffer] {
    //      buffer: {75 73 65 72 2e 69 6e 63 66 73 2e 6d 65 74 61 64 61 74 61
    //      00} (length 0x14)
    //    }
    //    val: nil
    //    size: bytesize = 0x0 (8 bytes)
    //    flags: setxattr_flags = 0x1 (8 bytes)
    //  ]
    memcpy((void*)0x2000000000c0, "./file0\000", 8);
    memcpy((void*)0x200000000100, "user.incfs.metadata\000", 20);
    syscall(__NR_setxattr, /*path=*/0x2000000000c0ul, /*name=*/0x200000000100ul,
            /*val=*/0ul, /*size=*/0ul, /*flags=XATTR_CREATE*/ 1ul);
    break;
  case 2:
    //  removexattr arguments: [
    //    path: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    name: ptr[in, xattr_name] {
    //      union xattr_name {
    //        known: buffer: {75 73 65 72 2e 69 6e 63 66 73 2e 6d 65 74 61 64 61
    //        74 61 00} (length 0x14)
    //      }
    //    }
    //  ]
    memcpy((void*)0x200000000140, "./file0\000", 8);
    memcpy((void*)0x200000000080, "user.incfs.metadata\000", 20);
    syscall(__NR_removexattr, /*path=*/0x200000000140ul,
            /*name=*/0x200000000080ul);
    break;
  case 3:
    //  removexattr arguments: [
    //    path: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    name: ptr[in, xattr_name] {
    //      union xattr_name {
    //        known: buffer: {75 73 65 72 2e 69 6e 63 66 73 2e 6d 65 74 61 64 61
    //        74 61 00} (length 0x14)
    //      }
    //    }
    //  ]
    memcpy((void*)0x200000000140, "./file0\000", 8);
    memcpy((void*)0x200000000080, "user.incfs.metadata\000", 20);
    syscall(__NR_removexattr, /*path=*/0x200000000140ul,
            /*name=*/0x200000000080ul);
    break;
  }
}
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;
}