// https://syzkaller.appspot.com/bug?id=c6df36580be23cc63665fb67389d6c301e8bdb02
// 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;
}

static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

//% 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");
  }
  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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x200000000040, "ext4\000", 5);
  memcpy((void*)0x200000000000, "./bus\000", 6);
  memcpy((void*)0x200000000200, "quota", 5);
  *(uint8_t*)0x200000000205 = 0x2c;
  memcpy((void*)0x200000000206, "oldalloc", 8);
  *(uint8_t*)0x20000000020e = 0x2c;
  memcpy((void*)0x20000000020f, "barrier", 7);
  *(uint8_t*)0x200000000216 = 0x3d;
  sprintf((char*)0x200000000217, "0x%016llx", (long long)3);
  *(uint8_t*)0x200000000229 = 0x2c;
  memcpy((void*)0x20000000022a, "debug_want_extra_isize", 22);
  *(uint8_t*)0x200000000240 = 0x3d;
  sprintf((char*)0x200000000241, "0x%016llx", (long long)0x80);
  *(uint8_t*)0x200000000253 = 0x2c;
  memcpy((void*)0x200000000254, "block_validity", 14);
  *(uint8_t*)0x200000000262 = 0x2c;
  memcpy((void*)0x200000000263, "jqfmt=vfsv1", 11);
  *(uint8_t*)0x20000000026e = 0x2c;
  *(uint8_t*)0x20000000026f = 0;
  memcpy(
      (void*)0x200000000940,
      "\x78\x9c\xec\xdb\xcf\x6f\x14\x55\x1c\x00\xf0\xef\xcc\xb6\x45\x28\xd8\x8a"
      "\xf8\x83\x82\x5a\x45\x63\xe3\x8f\x96\x16\x54\x0e\x5e\x34\x9a\x78\xd0\xc4"
      "\x44\x0f\x78\xac\x6d\x21\x95\x85\x1a\x5a\x13\x21\x8d\x56\x63\xf0\x68\x48"
      "\xbc\x1b\x8f\x26\xfe\x05\x9e\xf4\x62\xd4\x93\x89\x57\xbd\x1b\x12\x62\x7a"
      "\x01\x3d\xad\x99\xdd\x99\x76\xbb\xdd\x2d\x6d\xd9\x76\xd1\xfd\x7c\x92\x81"
      "\xf7\x66\xde\xe6\x7d\xbf\x3b\xf3\x76\xdf\xcc\xeb\x06\xd0\xb5\x86\xb3\x7f"
      "\x92\x88\xfd\x11\xf1\x7b\x44\x0c\xd4\xaa\x6b\x1b\x0c\xd7\xfe\xbb\xb9\xbc"
      "\x38\xf5\xf7\xf2\xe2\x54\x12\x95\xca\x5b\x7f\x25\xd5\x76\x37\x96\x17\xa7"
      "\x8a\xa6\xc5\xeb\xfa\xf3\xca\x48\x1a\x91\x7e\x96\xc4\x91\x26\xfd\xce\x5f"
      "\xba\x7c\x6e\xb2\x5c\x9e\xb9\x98\xd7\xc7\x16\xce\xbf\x3f\x36\x7f\xe9\xf2"
      "\xb3\xb3\xe7\x27\xcf\xce\x9c\x9d\xb9\x30\x71\xea\xd4\xc9\x13\xe3\x2f\x3c"
      "\x3f\xf1\x5c\x5b\xf2\xcc\x62\xba\x31\xf4\xd1\xdc\xd1\xc3\xaf\xbd\x73\xf5"
      "\x8d\xa9\xd3\x57\xdf\xfd\xf9\xdb\xa4\xc8\xbf\x21\x8f\x36\x19\xde\xe8\xe0"
      "\x13\x95\x4a\x9b\xbb\xeb\xac\x03\x75\xe5\xa4\xa7\x83\x81\xb0\x25\xa5\x88"
      "\xc8\x4e\x57\x6f\x75\xfc\x0f\x44\x29\x56\x4f\xde\x40\xbc\xfa\x69\x47\x83"
      "\x03\x76\x54\xa5\x52\xa9\xf4\xb7\x3e\xbc\x54\x01\xfe\xc7\x92\xe8\x74\x04"
      "\x40\x67\x14\x5f\xf4\xd9\xfd\x6f\xb1\xed\xd2\xd4\xe3\x8e\x70\xfd\xa5\xda"
      "\x0d\x50\x96\xf7\xcd\x7c\xab\x1d\xe9\x89\x34\x6f\xd3\xdb\x70\x7f\xdb\x4e"
      "\xc3\x11\x71\x7a\xe9\x9f\xaf\xb2\x2d\x76\xe6\x39\x04\x00\xc0\x1a\xdf\x67"
      "\xf3\x9f\x67\x9a\xcd\xff\xd2\xb8\xbf\xae\xdd\xdd\xf9\xda\xd0\x60\x44\xdc"
      "\x13\x11\x07\x23\xe2\xde\x88\x38\x14\x11\xf7\x45\x54\xdb\x3e\x10\x11\x0f"
      "\x6e\xb1\xff\xc6\x45\x92\xf5\xf3\x9f\xf4\xda\xb6\x12\xdb\xa4\x6c\xfe\xf7"
      "\x62\xbe\xb6\xb5\x76\xfe\x57\xcc\xfe\x62\xb0\x94\xd7\x0e\x54\xf3\xef\x4d"
      "\xce\xcc\x96\x67\x8e\xe7\xef\xc9\x48\xf4\xee\xc9\xea\xe3\x1b\xf4\xf1\xc3"
      "\x2b\xbf\x7d\xd1\xea\x58\xfd\xfc\x2f\xdb\xb2\xfe\x8b\xb9\x60\x1e\xc7\xb5"
      "\x9e\x3d\x6b\x5f\x33\x3d\xb9\x30\x79\x3b\x39\xd7\xbb\xfe\x49\xc4\x50\x4f"
      "\xb3\xfc\x93\x95\x95\x80\x24\x22\x0e\x47\xc4\xd0\x36\xfb\x98\x7d\xea\x9b"
      "\xa3\xad\x8e\xdd\x3a\xff\x0d\xb4\x61\x9d\xa9\xf2\x75\xc4\x93\xb5\xf3\xbf"
      "\x14\x0d\xf9\x17\x92\x8d\xd7\x27\xc7\xee\x8a\xf2\xcc\xf1\xb1\xe2\xaa\x58"
      "\xef\x97\x5f\xaf\xbc\xd9\xaa\xff\xdb\xca\xbf\x0d\xb2\xf3\xbf\xaf\xe9\xf5"
      "\xbf\x92\xff\x60\x52\xbf\x5e\x3b\xbf\xf5\x3e\xae\xfc\xf1\x79\xcb\x7b\x9a"
      "\xed\x5e\xff\x7d\xc9\xdb\xd5\x72\x5f\xbe\xef\xc3\xc9\x85\x85\x8b\xe3\x11"
      "\x7d\xc9\xeb\xb5\xa0\xeb\xf7\x4f\xac\xbe\xb6\xa8\x17\xed\xb3\xfc\x47\x8e"
      "\x35\x1f\xff\x07\x63\xf5\x9d\x38\x12\x11\xd9\x45\xfc\x50\x44\x3c\x1c\x11"
      "\x8f\xe4\xb1\x3f\x1a\x11\x8f\x45\xc4\xb1\x0d\xf2\xff\xe9\xe5\xc7\xdf\xdb"
      "\x7e\xfe\x3b\x2b\xcb\x7f\x7a\x4b\xe7\x7f\xb5\xd0\x17\x8d\x7b\x9a\x17\x4a"
      "\xe7\x7e\xfc\x6e\x4d\xa7\x83\x5b\xc9\x3f\x3b\xff\x27\xab\xa5\x91\x7c\xcf"
      "\x66\x3e\xff\x36\x13\xd7\xf6\xae\x66\x00\x00\x00\xf8\xef\x49\x23\x62\x7f"
      "\x24\xe9\xe8\x4a\x39\x4d\x47\x47\x6b\x7f\x2f\x7f\x28\xf6\xa5\xe5\xb9\xf9"
      "\x85\xa7\xcf\xcc\x7d\x70\x61\xba\xf6\x1b\x81\xc1\xe8\x4d\x8b\x27\x5d\x03"
      "\x75\xcf\x43\xc7\xf3\xdb\xfa\xa2\x3e\xd1\x50\x3f\x91\x3f\x37\xfe\xb2\xb4"
      "\xb7\x5a\x1f\x9d\x9a\x2b\x4f\x77\x3a\x79\xe8\x72\xfd\x2d\xc6\x7f\xe6\xcf"
      "\x52\xa7\xa3\x03\x76\x9c\xdf\x6b\x41\xf7\x32\xfe\xa1\x7b\x19\xff\xd0\xbd"
      "\x8c\x7f\xe8\x5e\x4d\xc6\xff\xde\x4e\xc4\x01\xec\xbe\x66\xdf\xff\x1f\x77"
      "\x20\x0e\x60\xf7\x35\x8c\x7f\xcb\x7e\xd0\x45\xdc\xff\x43\xf7\x32\xfe\xa1"
      "\x7b\x19\xff\xd0\x95\xe6\xf7\xc6\xad\x7f\x24\xaf\xa0\xb0\xae\x10\xe9\x1d"
      "\x11\x86\xc2\x0e\x15\x3a\xfd\xc9\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\xd0\x1e\xff\x06\x00\x00\xff\xff\x92\xd7\xe6\xcf",
      1076);
  syz_mount_image(/*fs=*/0x200000000040, /*dir=*/0x200000000000,
                  /*flags=MS_NOSUID|MS_NOEXEC|MS_NODEV*/ 0xe,
                  /*opts=*/0x200000000200, /*chdir=*/3, /*size=*/0x434,
                  /*img=*/0x200000000940);
  memcpy((void*)0x200000000100, "ext4\000", 5);
  memcpy((void*)0x200000000200, "./file1\000", 8);
  *(uint8_t*)0x2000000006c0 = 0;
  memcpy(
      (void*)0x200000000c40,
      "\x78\x9c\xec\xdd\x6f\x6b\x24\x77\x1d\x00\xf0\xef\x4c\xb2\x69\xee\x2e\x35"
      "\x5b\x15\x39\x0b\xb6\xc5\x56\xee\x8a\xde\x6e\xd2\xd8\x36\x8a\xb4\x15\x44"
      "\x1f\x15\xd4\xfa\x3c\xc6\x64\x13\x42\x36\xd9\x90\xdd\xd4\x4b\x28\x9a\xe2"
      "\x0b\x10\x44\x54\xf0\x05\xf8\x44\xf0\x05\x08\xd2\x97\x20\xc2\x81\x3e\x17"
      "\x15\x45\xf4\x4e\x1f\xea\x8d\xcc\xee\x44\xf3\x67\x37\x59\x92\x4d\xf6\xdc"
      "\x7c\x3e\x30\xd9\xdf\x6f\xfe\x7d\xbf\xbf\x21\x3b\x3b\x7f\x7e\xcc\x04\x70"
      "\x6d\xbd\x10\x11\x6f\x45\xc4\x58\x44\xbc\x1c\x11\xd3\xc5\xf8\xb4\x18\x16"
      "\xf2\xca\x7e\x67\xbe\x47\x0f\xdf\x5b\xca\x87\x24\xb2\xec\x9d\xbf\x25\x91"
      "\x14\xe3\x0e\xd6\x95\xd7\xc7\x23\xe2\x56\x67\x91\x98\x8c\x88\xaf\x7f\x25"
      "\xe2\x5b\xc9\xc9\xb8\xcd\xdd\xbd\xf5\xc5\x7a\xbd\xb6\x5d\xd4\xab\xad\x8d"
      "\xad\x6a\x73\x77\xef\xde\xda\xc6\xe2\x6a\x6d\xb5\xb6\x39\x37\x37\xfb\xda"
      "\xfc\xeb\xf3\xaf\xce\xcf\x64\x85\x0b\xb5\xb3\x1c\x11\x6f\x7c\xe9\x4f\x3f"
      "\xfa\xfe\xcf\xbe\xfc\xc6\xaf\x3e\xf3\xed\xdf\x2f\xfc\xe5\xee\x77\xf2\xb4"
      "\xbe\xf0\xb1\x4e\xde\x11\xb1\x74\xa1\x00\x3d\x74\xd6\x5d\x6a\x6f\x8b\x03"
      "\xf9\x36\xda\xbe\x8c\x60\x43\x92\xb7\xa7\x34\x36\xec\x2c\x00\x00\xe8\x47"
      "\x7e\x8c\xff\xe1\x88\xf8\x64\xfb\xf8\x7f\x3a\xc6\xda\x47\x73\x00\x00\x00"
      "\xc0\x28\xc9\xde\x9c\x8a\x7f\x25\x11\x19\x00\x00\x00\x30\xb2\xd2\x88\x98"
      "\x8a\x24\xad\x14\x7d\x01\xa6\x22\x4d\x2b\x95\x4e\x1f\xde\x8f\xc6\xcd\xb4"
      "\xde\x68\xb6\x3e\xbd\xd2\xd8\xd9\x5c\xce\xa7\x45\x94\xa3\x94\xae\xac\xd5"
      "\x6b\x33\x45\x5f\xe1\x72\x94\x92\xbc\x3e\x5b\xf4\xb1\x3d\xa8\xbf\x72\xac"
      "\x3e\x17\x11\xcf\x44\xc4\x0f\xa7\x6f\xb4\xeb\x95\xa5\x46\x7d\x79\xd8\x17"
      "\x3f\x00\x00\x00\xe0\x9a\xb8\xf5\xfc\xd1\xf3\xff\x7f\x4e\xa7\xed\x32\x00"
      "\x00\x00\x30\x62\xca\x3d\x2b\x00\x00\x00\xc0\xa8\x70\xca\x0f\x00\x00\x00"
      "\xa3\xcf\xf9\x3f\x00\x00\x00\x8c\xb4\xaf\xbe\xfd\x76\x3e\x64\x07\xef\xf1"
      "\x5e\x7e\x77\x77\x67\xbd\xf1\xee\xbd\xe5\x5a\x73\xbd\xb2\xb1\xb3\x54\x59"
      "\x6a\x6c\x6f\x55\x56\x1b\x8d\xd5\xf6\x33\xfb\x36\xce\x5a\x5f\xbd\xd1\xd8"
      "\xfa\x6c\x6c\xee\xdc\xaf\xb6\x6a\xcd\x56\xb5\xb9\xbb\xb7\xb0\xd1\xd8\xd9"
      "\x6c\x2d\xac\x1d\x79\x05\x36\x00\x00\x00\x70\x85\x9e\x79\xfe\x83\xdf\x25"
      "\x11\xb1\xff\xf9\x1b\xed\x21\x8a\xe7\x00\x02\x1c\xf1\xc7\x61\x27\x00\x0c"
      "\xd2\xd8\xb0\x13\x00\x86\x66\x7c\xd8\x09\x00\x43\x53\x3a\x73\x0e\x7b\x08"
      "\x18\x75\xc9\x19\xd3\x4f\x76\xde\xe9\x5c\x2b\x8c\x5f\x5f\x4e\x3e\x00\x00"
      "\xc0\xe0\xdd\xf9\xf8\xc9\xfb\xff\x13\xc5\xb4\xb3\xaf\x0d\x00\xff\xcf\xf4"
      "\xf5\x01\x80\xeb\xc7\xdd\x3d\xb8\xbe\x4a\xe7\xed\x01\x78\x7b\xd0\x99\x00"
      "\xc3\xf2\xa1\xce\xc7\x53\xbd\xa6\xf7\x7c\x78\x47\x1f\xf7\xff\x3b\xd7\x18"
      "\xb2\xec\x5c\x89\x01\x00\x00\x03\x33\xd5\x1e\x92\xb4\x52\x1c\xa7\x4f\x45"
      "\x9a\x56\x2a\x11\x4f\xb7\x5f\x0b\x50\x4a\x56\xd6\xea\xb5\x99\xe2\xfc\xe0"
      "\xb7\xd3\xa5\xa7\xf2\xfa\x6c\x7b\xc9\xe4\xcc\x3e\xc3\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x47\x96\x25"
      "\x91\x01\x00\x00\x00\x23\x2d\x22\xfd\x73\xd2\x7e\x9a\x7f\xc4\x9d\xe9\x97"
      "\xa6\x8e\x5e\x1d\x38\xf6\xd6\xaf\x9f\xbe\xf3\xe3\xfb\x8b\xad\xd6\xf6\x6c"
      "\xc4\x44\xf2\xf7\xe9\x7c\xd4\x44\x44\xb4\x7e\x52\x8c\x7f\x25\xf3\x4a\x00"
      "\x00\x00\x00\x78\x02\x74\xce\xd3\x8b\xcf\xd9\x61\x67\x03\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xa8\x79\xf4"
      "\xf0\xbd\xa5\x83\xe1\x2a\xe3\xfe\xf5\x8b\x11\x51\xee\x16\x7f\x3c\x26\xdb"
      "\x9f\x93\x51\x8a\x88\x9b\xff\x48\x62\xfc\xd0\x72\x49\x44\x8c\x0d\x20\xfe"
      "\xfe\xfb\x11\x71\xbb\x5b\xfc\x24\x1e\x67\x59\x56\x2e\xb2\xe8\x16\xff\xc6"
      "\x25\xc7\x2f\xb7\x37\x4d\xf7\xf8\x69\x44\xdc\x1a\x40\x7c\xb8\xce\x3e\xc8"
      "\xf7\x3f\x6f\x75\xfb\xfe\xa5\xf1\x42\xfb\xb3\xfb\xf7\x6f\xbc\x18\x2e\xaa"
      "\xf7\xfe\x2f\xfd\xef\xfe\x6f\xac\xc7\xfe\xe7\xe9\x63\xf5\x5e\x9e\x7d\xf0"
      "\x8b\x6a\xcf\xf8\xef\x47\x3c\x3b\xde\x7d\xff\x73\x10\x3f\xe9\xc4\x3f\x12"
      "\x22\xaf\xbc\xd8\x67\x1b\xbf\xf9\x8d\xbd\xbd\xae\x13\x0e\xad\xb2\x5b\xfc"
      "\xc3\xb1\xaa\xad\x8d\xad\x6a\x73\x77\xef\xde\xda\xc6\xe2\x6a\x6d\xb5\xb6"
      "\x39\x37\x37\xfb\xda\xfc\xeb\xf3\xaf\xce\xcf\x54\x57\xd6\xea\xb5\xe2\x6f"
      "\xd7\x30\x3f\xf8\xc4\x2f\x1f\x9f\xd6\xfe\x9b\x3d\xe2\x97\x8f\xb6\xff\xc4"
      "\xf6\x7f\xa9\xaf\xd6\x67\xf1\xef\x07\xf7\x1f\x7e\xa4\x53\x29\x75\x8b\x7f"
      "\xf7\xc5\xee\xbf\xbf\xb7\x7b\xc4\x4f\x8b\xdf\xbe\x4f\x15\xe5\x7c\xfa\x9d"
      "\x83\xf2\x7e\xa7\x7c\xd8\x73\x3f\xff\xcd\x73\xa7\xb5\x7f\xb9\x47\xfb\x27"
      "\xcf\x68\xff\xdd\xbe\xda\x1f\x9f\x7b\xf9\x6b\xdf\xfb\x43\xd7\x29\x27\xb6"
      "\x06\x00\x70\x15\x9a\xbb\x7b\xeb\x8b\xf5\x7a\x6d\xfb\x94\xc2\x64\x1f\xf3"
      "\x5c\x71\xe1\xcd\x27\x23\x8d\x01\x16\xe2\xc9\x48\x63\x58\x85\xec\xbb\x9d"
      "\xff\xc7\x8b\xad\xe7\x82\x8b\x9f\x28\x64\x17\x59\x7c\x3c\x06\x90\xc6\xc4"
      "\x89\xef\xe9\x58\x9c\x77\x85\x49\xc4\x7e\xbe\xae\x3e\xff\x21\x01\x00\x80"
      "\x11\xf3\xbf\x83\xfe\xd3\xee\x20\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x97\xe9\x9c\x8f\x25\x9b\x8c\x88\xbe\x67\x3e\x1e"
      "\x73\x7f\x38\x4d\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\xd5\x7f\x02\x00\x00\xff\xff\x05"
      "\x4a\xd1\x59",
      1299);
  syz_mount_image(/*fs=*/0x200000000100, /*dir=*/0x200000000200,
                  /*flags=MS_LAZYTIME|MS_STRICTATIME|MS_NODIRATIME*/ 0x3000800,
                  /*opts=*/0x2000000006c0, /*chdir=*/1, /*size=*/0x513,
                  /*img=*/0x200000000c40);
  memcpy((void*)0x200000000440, "/dev/loop#\000", 11);
  res = -1;
  res =
      syz_open_dev(/*dev=*/0x200000000440, /*id=*/0x204000000000075f,
                   /*flags=O_SYNC|O_LARGEFILE|O_CREAT|FASYNC|O_RDWR*/ 0x10b042);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x2000000000c0 = 0;
  *(uint16_t*)0x2000000000c8 = 0;
  *(uint64_t*)0x2000000000d0 = 0;
  *(uint16_t*)0x2000000000d8 = 0;
  *(uint32_t*)0x2000000000e0 = 3;
  *(uint32_t*)0x2000000000e4 = 0x12;
  *(uint32_t*)0x2000000000e8 = 0xa;
  *(uint32_t*)0x2000000000ec = 9;
  memcpy((void*)0x2000000000f0,
         "\x4b\x8b\x3e\xa4\x69\x29\xdf\xed\x0b\x2f\x34\x38\x0d\x30\x8f\x95\xa0"
         "\x23\xd0\x09\x85\x24\x71\xdd\x5a\x94\xa9\xfe\x95\x49\x91\x8a\xe7\xfd"
         "\x1f\x0e\xce\xcd\x9b\xad\xa8\xb1\x08\x40\x33\x62\xcf\xe0\xf4\xfc\xcf"
         "\xfb\x1b\x4f\x21\x15\x35\x4d\x4d\xf1\x5d\x01\x7a\x3f",
         64);
  memcpy((void*)0x200000000130,
         "\x23\x63\xf1\x8d\x9a\xcc\x6c\xaa\xdd\x6d\x12\x6c\xfb\xc0\xc9\x2f\xc8"
         "\x17\xd4\x4d\xcd\xec\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         32);
  *(uint64_t*)0x200000000150 = 1;
  *(uint64_t*)0x200000000158 = 0x80000000000;
  *(uint32_t*)0x200000000160 = 0;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x1277, /*arg=*/0x2000000000c0ul);
}
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;
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}