// https://syzkaller.appspot.com/bug?id=a1954eed3adfde914df9a0a2d0b7d1ecb876072f
// 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_bpf
#define __NR_bpf 321
#endif
#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;
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

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");
  }
  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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x200000000100, "ext4\000", 5);
  memcpy((void*)0x200000000200, "./file1\000", 8);
  memcpy((void*)0x200000000280, "grpquota", 8);
  *(uint8_t*)0x200000000288 = 0x2c;
  memcpy((void*)0x200000000289, "abort", 5);
  *(uint8_t*)0x20000000028e = 0x2c;
  memcpy((void*)0x20000000028f, "errors=remount-ro", 17);
  *(uint8_t*)0x2000000002a0 = 0x2c;
  *(uint8_t*)0x2000000002a1 = 0;
  memcpy(
      (void*)0x2000000005c0,
      "\x78\x9c\xec\xdd\xcf\x6f\x1b\x59\x1d\x00\xf0\xaf\x9d\x38\x71\xd2\xec\x26"
      "\xbb\xec\x01\x10\xec\x96\xdd\x85\x82\xaa\x3a\x89\xbb\x1b\xad\xf6\x00\xcb"
      "\x09\x21\x54\x09\xd1\x23\x48\x6d\x48\xdc\x28\x8a\x1d\x47\xb1\x53\x9a\xd0"
      "\x43\x7a\xe6\x8a\x44\x25\x4e\x70\xe4\x0f\xe0\xdc\x13\x77\x2e\x08\x6e\x5c"
      "\xca\x01\x89\x1f\x11\xa8\x41\xe2\xe0\xd5\x8c\x27\xa9\x9b\xda\x4d\xd4\x24"
      "\x76\x14\x7f\x3e\xd2\x68\xde\x9b\x37\xf5\xf7\xbd\xa6\xf3\x5e\xfd\x4d\xe2"
      "\x17\xc0\xd0\xba\x1a\x11\xbb\x11\x31\x16\x11\x77\x23\x62\x3a\xbb\x9e\xcb"
      "\x8e\xf8\xac\x7d\x24\xf7\x3d\xdb\x7b\xb8\xb4\xbf\xf7\x70\x29\x17\xad\xd6"
      "\xed\x7f\xe5\xd2\xf6\xe4\x5a\x74\xfc\x99\xc4\x95\xec\x35\x8b\x11\xf1\xa3"
      "\xef\x45\xfc\x34\xf7\x72\xdc\xc6\xf6\xce\xda\x62\xb5\x5a\xd9\xcc\xea\xb3"
      "\xcd\xda\xc6\x6c\x63\x7b\xe7\xc6\x6a\x6d\x71\xa5\xb2\x52\x59\x2f\x97\x17"
      "\xe6\x17\xe6\x3e\xb9\xf9\x71\xf9\xcc\xc6\xfa\x5e\x6d\x2c\x2b\x7d\xf5\xe9"
      "\x1f\x77\xbf\xf5\xf3\xa4\x5b\x53\xd9\x95\xce\x71\x9c\xa5\xf6\xd0\x0b\x87"
      "\x71\x12\xa3\x11\xf1\x83\xf3\x08\x36\x00\x23\xd9\x78\xc6\x06\xdd\x11\x5e"
      "\x4b\x3e\x22\xde\x8e\x88\xf7\xd3\xe7\x7f\x3a\x46\xd2\xaf\x26\x00\x70\x99"
      "\xb5\x5a\xd3\xd1\x9a\xee\xac\x03\x00\x97\x5d\x3e\xcd\x81\xe5\xf2\xa5\x2c"
      "\x17\x30\x15\xf9\x7c\xa9\xd4\xce\xe1\xbd\x13\x93\xf9\x6a\xbd\xd1\xbc\x7e"
      "\xaf\xbe\xb5\xbe\xdc\xce\x95\xcd\x44\x21\x7f\x6f\xb5\x5a\x99\xcb\x72\x85"
      "\x33\x51\xc8\x25\xf5\xf9\xb4\xfc\xbc\x5e\x3e\x52\xbf\x19\x11\x6f\x45\xc4"
      "\x2f\xc7\x27\xd2\x7a\x69\xa9\x5e\x5d\x1e\xe4\x7f\x7c\x00\x60\x88\x5d\x39"
      "\xb2\xfe\xff\x77\xbc\xbd\xfe\x03\x00\x97\x5c\x71\xd0\x1d\x00\x00\xfa\xce"
      "\xfa\x0f\x00\xc3\xc7\xfa\x0f\x00\xc3\xc7\xfa\x0f\x00\xc3\xa7\xbd\xfe\x4f"
      "\x0c\xba\x1b\x00\x40\x1f\x79\xff\x0f\x00\xc3\xc7\xfa\x0f\x00\x43\xe5\x87"
      "\xb7\x6e\x25\x47\x6b\x3f\xfb\xfc\xeb\xe5\xfb\xdb\x5b\x6b\xf5\xfb\x37\x96"
      "\x2b\x8d\xb5\x52\x6d\x6b\xa9\xb4\x54\xdf\xdc\x28\xad\xd4\xeb\x2b\xe9\x67"
      "\xf6\xd4\x8e\x7b\xbd\x6a\xbd\xbe\x31\xff\x51\x6c\x3d\x98\xf9\xf6\x46\xa3"
      "\x39\xdb\xd8\xde\xb9\x53\xab\x6f\xad\x37\xef\xa4\x9f\xeb\x7d\xa7\x52\x48"
      "\xef\xda\xed\xc3\xc8\x00\x80\x5e\xde\x7a\xef\xc9\x5f\x72\xc9\x8a\xfc\xe9"
      "\x44\x7a\x44\xc7\x5e\x0e\x85\x81\xf6\x0c\x38\x6f\xf9\x41\x77\x00\x18\x98"
      "\x91\x41\x77\x00\x18\x18\xbb\x7d\xc1\xf0\x3a\xc5\x7b\x7c\xe9\x01\xb8\x24"
      "\xba\x6c\xd1\xfb\x82\x62\xb7\x5f\x10\x6a\xb5\x5a\xad\xf3\xeb\x12\x70\xce"
      "\xae\x7d\x49\xfe\x1f\x86\x55\x47\xfe\xdf\x4f\x01\xc3\x90\x91\xff\x87\xe1"
      "\x25\xff\x0f\xc3\xab\xd5\xca\x9d\x74\xcf\xff\x38\xe9\x8d\x00\xc0\xc5\x26"
      "\xc7\x0f\xf4\xf8\xfe\xff\xdb\xd9\xf9\x77\xd9\x37\x07\x7e\xb2\x7c\xf4\x8e"
      "\xc7\xe7\xd9\x2b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb8\xd8\x0e\xf6\xff\x2d\x65\x7b"
      "\x81\x4f\x45\x3e\x5f\x2a\x45\xbc\x11\x11\x33\x51\xc8\xdd\x5b\xad\x56\xe6"
      "\x22\xe2\xcd\x88\xf8\xf3\x78\x61\x3c\xa9\xcf\x0f\xb8\xcf\x00\xc0\x69\xe5"
      "\xff\x9e\xcb\xf6\xff\xba\x36\xfd\xe1\xd4\x0b\x4d\xef\x5e\x39\x2c\x8e\x45"
      "\xc4\xcf\x7e\x7d\xfb\x57\x0f\x16\x9b\xcd\xcd\x3f\x45\x8c\xe5\xfe\x3d\x7e"
      "\x70\xbd\xf9\x38\xbb\x5e\xee\x7f\xef\x01\x80\xe3\x1d\xac\xd3\xe9\xb9\xe3"
      "\x8d\xfc\xb3\xbd\x87\x4b\x07\x47\x3f\xfb\xf3\x8f\xef\x46\x44\xb1\x1d\x7f"
      "\x7f\x6f\x2c\xf6\x0f\xe3\x8f\xc6\x68\x7a\x2e\x46\x21\x22\x26\xff\x93\xcb"
      "\xea\x6d\xb9\x8e\xdc\xc5\x69\xec\x3e\x8a\x88\x2f\x76\x1b\x7f\x2e\xa6\xd2"
      "\x1c\x48\x7b\xe7\xd3\xa3\xf1\x93\xd8\x6f\xf4\x35\x7e\xfe\x85\xf8\xf9\xb4"
      "\xad\x7d\x4e\xfe\x2e\xbe\x70\x06\x7d\x81\x61\xf3\x24\x99\x7f\x3e\xeb\xf6"
      "\xfc\xe5\xe3\x6a\x7a\xee\xfe\xfc\x17\xd3\x19\xea\xf4\xb2\xf9\x2f\x79\xa9"
      "\xa5\xfd\x74\x0e\x7c\x1e\xff\x60\xfe\x1b\xe9\x31\xff\x5d\x3d\x69\x8c\x8f"
      "\xfe\xf0\xfd\x76\x69\xe2\xe5\xb6\x47\x11\x5f\x1e\x8d\x38\x88\xbd\xdf\x31"
      "\xff\x1c\xc4\xcf\xf5\x88\xff\xe1\x09\xe3\xff\xf5\x2b\xef\xbe\xdf\xab\xad"
      "\xf5\x9b\x88\x6b\xd1\x3d\x7e\x67\xac\xd9\x66\x6d\x63\xb6\xb1\xbd\x73\x63"
      "\xb5\xb6\xb8\x52\x59\xa9\xac\x97\xcb\x0b\xf3\x0b\x73\x9f\xdc\xfc\xb8\x3c"
      "\x9b\xe6\xa8\x67\x7b\xaf\x06\xff\xfc\xf4\xfa\x9b\xbd\xda\x92\xf1\x4f\xf6"
      "\x88\x5f\x3c\x66\xfc\x5f\x3f\xe1\xf8\x7f\xfb\xff\xbb\x3f\xfe\xda\x2b\xe2"
      "\x7f\xf3\x83\x6e\xf1\xf3\xf1\xce\x2b\xe2\x27\x6b\xe2\x37\x4e\x18\x7f\x71"
      "\xf2\xf7\xc5\x5e\x6d\x49\xfc\xe5\x1e\xe3\x3f\xee\xeb\x7f\xfd\x84\xf1\x9f"
      "\xfe\x6d\xe7\xa5\x6d\xc3\x01\x80\xc1\x69\x6c\xef\xac\x2d\x56\xab\x95\x4d"
      "\x05\x85\x8b\x5f\x48\xfe\xc9\x5e\x80\x6e\x74\x2d\x7c\xa7\x5f\xb1\xc6\xa2"
      "\x7b\xd3\x2f\x3e\x68\x3f\xd3\x47\x9a\x5a\xad\xd7\x8a\xd5\x6b\xc6\x38\x8b"
      "\xac\x1b\x70\x11\x1c\x3e\xf4\x11\xf1\xbf\x41\x77\x06\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xe8\xaa\x1f\xbf\xb1\x34\xe8\x31\x02\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x70\x79\x7d\x1e\x00\x00\xff\xff\x5f\x71\xcf\x23",
      1274);
  syz_mount_image(
      /*fs=*/0x200000000100, /*dir=*/0x200000000200,
      /*flags=MS_POSIXACL|MS_SYNCHRONOUS|MS_RELATIME|MS_NOSUID|0x80c*/ 0x21081e,
      /*opts=*/0x200000000280, /*chdir=*/1, /*size=*/0x4fa,
      /*img=*/0x2000000005c0);
  memcpy((void*)0x200000004280, "./file0\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000004280ul,
                /*flags=*/0, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x2000000000c0 = 0;
  *(uint32_t*)0x2000000000c4 = 0xc;
  *(uint64_t*)0x2000000000c8 = 0x200000000440;
  *(uint8_t*)0x200000000440 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200000000441, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000441, 0, 4, 4);
  *(uint16_t*)0x200000000442 = 0;
  *(uint32_t*)0x200000000444 = 0;
  *(uint8_t*)0x200000000448 = 0;
  *(uint8_t*)0x200000000449 = 0;
  *(uint16_t*)0x20000000044a = 0;
  *(uint32_t*)0x20000000044c = 0;
  *(uint8_t*)0x200000000450 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200000000451, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000451, 1, 4, 4);
  *(uint16_t*)0x200000000452 = 0;
  *(uint32_t*)0x200000000454 = -1;
  *(uint8_t*)0x200000000458 = 0;
  *(uint8_t*)0x200000000459 = 0;
  *(uint16_t*)0x20000000045a = 0;
  *(uint32_t*)0x20000000045c = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000460, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000460, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000460, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000461, 8, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000461, 0, 4, 4);
  *(uint16_t*)0x200000000462 = 0;
  *(uint32_t*)0x200000000464 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000468, 3, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000468, 3, 3, 2);
  STORE_BY_BITMASK(uint8_t, , 0x200000000468, 3, 5, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000469, 0xa, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000469, 8, 4, 4);
  *(uint16_t*)0x20000000046a = 0xfff8;
  *(uint32_t*)0x20000000046c = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000470, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000470, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000470, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000471, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000471, 0xa, 4, 4);
  *(uint16_t*)0x200000000472 = 0;
  *(uint32_t*)0x200000000474 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000478, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000478, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000478, 0, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000479, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000479, 0, 4, 4);
  *(uint16_t*)0x20000000047a = 0;
  *(uint32_t*)0x20000000047c = 0xfffffff8;
  STORE_BY_BITMASK(uint8_t, , 0x200000000480, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000480, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000480, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000481, 3, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000481, 0, 4, 4);
  *(uint16_t*)0x200000000482 = 0;
  *(uint32_t*)0x200000000484 = 8;
  STORE_BY_BITMASK(uint8_t, , 0x200000000488, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000488, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000488, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000489, 4, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000489, 0, 4, 4);
  *(uint16_t*)0x20000000048a = 0;
  *(uint32_t*)0x20000000048c = 0;
  *(uint8_t*)0x200000000490 = 0x85;
  *(uint8_t*)0x200000000491 = 0;
  *(uint16_t*)0x200000000492 = 0;
  *(uint32_t*)0x200000000494 = 3;
  *(uint8_t*)0x200000000498 = 0x95;
  *(uint8_t*)0x200000000499 = 0;
  *(uint16_t*)0x20000000049a = 0;
  *(uint32_t*)0x20000000049c = 0;
  *(uint64_t*)0x2000000000d0 = 0;
  *(uint32_t*)0x2000000000d8 = 0;
  *(uint32_t*)0x2000000000dc = 0;
  *(uint64_t*)0x2000000000e0 = 0;
  *(uint32_t*)0x2000000000e8 = 0;
  *(uint32_t*)0x2000000000ec = 0;
  memset((void*)0x2000000000f0, 0, 16);
  *(uint32_t*)0x200000000100 = 0;
  *(uint32_t*)0x200000000104 = 0;
  *(uint32_t*)0x200000000108 = -1;
  *(uint32_t*)0x20000000010c = 0;
  *(uint64_t*)0x200000000110 = 0;
  *(uint32_t*)0x200000000118 = 0;
  *(uint32_t*)0x20000000011c = 0;
  *(uint64_t*)0x200000000120 = 0;
  *(uint32_t*)0x200000000128 = 0;
  *(uint32_t*)0x20000000012c = 0;
  *(uint32_t*)0x200000000130 = 0;
  *(uint32_t*)0x200000000134 = 0;
  *(uint64_t*)0x200000000138 = 0;
  *(uint64_t*)0x200000000140 = 0;
  *(uint32_t*)0x200000000148 = 0;
  *(uint32_t*)0x20000000014c = 0;
  *(uint32_t*)0x200000000150 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x90ul);
  memcpy((void*)0x2000000009c0,
         "\x02\x00\x00\x00\x04\x00\x00\x00\x06\x00\x00\x00\x05\x00\x00\x00\x00"
         "\x00\x00\x00",
         20);
  *(uint32_t*)0x2000000009d4 = -1;
  memcpy((void*)0x2000000009d8,
         "\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00",
         20);
  *(uint32_t*)0x2000000009ec = 0;
  *(uint32_t*)0x2000000009f0 = -1;
  memset((void*)0x2000000009f4, 0, 28);
  res =
      syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x2000000009c0ul, /*size=*/0x48ul);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x2000000000c0 = 0;
  *(uint32_t*)0x2000000000c4 = 0xc;
  *(uint64_t*)0x2000000000c8 = 0x200000000440;
  memcpy((void*)0x200000000440,
         "\x18\x00\x00\x00\x01\x07\x00\x00\x00\x00\x00\x00\x00\x00\x26\x00\x18"
         "\x11\x00\x00",
         20);
  *(uint32_t*)0x200000000454 = r[1];
  *(uint64_t*)0x2000000000d0 = 0;
  *(uint32_t*)0x2000000000d8 = 0;
  *(uint32_t*)0x2000000000dc = 0;
  *(uint64_t*)0x2000000000e0 = 0;
  *(uint32_t*)0x2000000000e8 = 0;
  *(uint32_t*)0x2000000000ec = 0;
  memset((void*)0x2000000000f0, 0, 16);
  *(uint32_t*)0x200000000100 = 0;
  *(uint32_t*)0x200000000104 = 0;
  *(uint32_t*)0x200000000108 = -1;
  *(uint32_t*)0x20000000010c = 0;
  *(uint64_t*)0x200000000110 = 0;
  *(uint32_t*)0x200000000118 = 0;
  *(uint32_t*)0x20000000011c = 0;
  *(uint64_t*)0x200000000120 = 0;
  *(uint32_t*)0x200000000128 = 0;
  *(uint32_t*)0x20000000012c = 0;
  *(uint32_t*)0x200000000130 = 0;
  *(uint32_t*)0x200000000134 = 0;
  *(uint64_t*)0x200000000138 = 0;
  *(uint64_t*)0x200000000140 = 0;
  *(uint32_t*)0x200000000148 = 0;
  *(uint32_t*)0x20000000014c = 0;
  *(uint32_t*)0x200000000150 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul);
  *(uint32_t*)0x2000000000c0 = 5;
  *(uint32_t*)0x2000000000c4 = 0xc;
  *(uint64_t*)0x2000000000c8 = 0x200000000440;
  memcpy((void*)0x200000000440,
         "\x18\x01\x00\x00\x11\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x12",
         18);
  *(uint64_t*)0x2000000000d0 = 0;
  *(uint32_t*)0x2000000000d8 = 0;
  *(uint32_t*)0x2000000000dc = 0;
  *(uint64_t*)0x2000000000e0 = 0;
  *(uint32_t*)0x2000000000e8 = 0;
  *(uint32_t*)0x2000000000ec = 0;
  memset((void*)0x2000000000f0, 0, 16);
  *(uint32_t*)0x200000000100 = 0;
  *(uint32_t*)0x200000000104 = 0;
  *(uint32_t*)0x200000000108 = -1;
  *(uint32_t*)0x20000000010c = 0;
  *(uint64_t*)0x200000000110 = 0;
  *(uint32_t*)0x200000000118 = 0;
  *(uint32_t*)0x20000000011c = 0;
  *(uint64_t*)0x200000000120 = 0;
  *(uint32_t*)0x200000000128 = 0;
  *(uint32_t*)0x20000000012c = 0;
  *(uint32_t*)0x200000000130 = 0;
  *(uint32_t*)0x200000000134 = 0;
  *(uint64_t*)0x200000000138 = 0;
  *(uint64_t*)0x200000000140 = 0;
  *(uint32_t*)0x200000000148 = 0;
  *(uint32_t*)0x20000000014c = 0;
  *(uint32_t*)0x200000000150 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul);
  *(uint32_t*)0x200000000300 = 0;
  *(uint32_t*)0x200000000304 = 4;
  *(uint64_t*)0x200000000308 = 0x200000000480;
  memcpy((void*)0x200000000480,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x85"
         "\x00\x00\x00\x6d",
         21);
  *(uint64_t*)0x200000000310 = 0;
  *(uint32_t*)0x200000000318 = 4;
  *(uint32_t*)0x20000000031c = 0;
  *(uint64_t*)0x200000000320 = 0;
  *(uint32_t*)0x200000000328 = 0;
  *(uint32_t*)0x20000000032c = 0;
  memset((void*)0x200000000330, 0, 16);
  *(uint32_t*)0x200000000340 = 0;
  *(uint32_t*)0x200000000344 = 0;
  *(uint32_t*)0x200000000348 = -1;
  *(uint32_t*)0x20000000034c = 0;
  *(uint64_t*)0x200000000350 = 0;
  *(uint32_t*)0x200000000358 = 0;
  *(uint32_t*)0x20000000035c = 0;
  *(uint64_t*)0x200000000360 = 0;
  *(uint32_t*)0x200000000368 = 0;
  *(uint32_t*)0x20000000036c = 0;
  *(uint32_t*)0x200000000370 = 0;
  *(uint32_t*)0x200000000374 = 0;
  *(uint64_t*)0x200000000378 = 0;
  *(uint64_t*)0x200000000380 = 0;
  *(uint32_t*)0x200000000388 = 0;
  *(uint32_t*)0x20000000038c = 0;
  *(uint32_t*)0x200000000390 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000300ul, /*size=*/0x90ul);
  *(uint32_t*)0x200000000240 = 0x11;
  *(uint32_t*)0x200000000244 = 0xc;
  *(uint64_t*)0x200000000248 = 0x200000000440;
  *(uint64_t*)0x200000000250 = 0x2000000003c0;
  memcpy((void*)0x2000000003c0, "syzkaller\000", 10);
  *(uint32_t*)0x200000000258 = 0;
  *(uint32_t*)0x20000000025c = 0;
  *(uint64_t*)0x200000000260 = 0;
  *(uint32_t*)0x200000000268 = 0;
  *(uint32_t*)0x20000000026c = 0;
  memset((void*)0x200000000270, 0, 16);
  *(uint32_t*)0x200000000280 = 0;
  *(uint32_t*)0x200000000284 = 0;
  *(uint32_t*)0x200000000288 = -1;
  *(uint32_t*)0x20000000028c = 0;
  *(uint64_t*)0x200000000290 = 0;
  *(uint32_t*)0x200000000298 = 0;
  *(uint32_t*)0x20000000029c = 0;
  *(uint64_t*)0x2000000002a0 = 0;
  *(uint32_t*)0x2000000002a8 = 0;
  *(uint32_t*)0x2000000002ac = 0;
  *(uint32_t*)0x2000000002b0 = 0;
  *(uint32_t*)0x2000000002b4 = 0;
  *(uint64_t*)0x2000000002b8 = 0;
  *(uint64_t*)0x2000000002c0 = 0;
  *(uint32_t*)0x2000000002c8 = 0;
  *(uint32_t*)0x2000000002cc = 0;
  *(uint32_t*)0x2000000002d0 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000240ul, /*size=*/0x90ul);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x200000000200 = 0x200000000300;
  memcpy((void*)0x200000000300, "sys_enter\000", 10);
  *(uint32_t*)0x200000000208 = r[2];
  *(uint32_t*)0x20000000020c = 0;
  *(uint64_t*)0x200000000210 = 0;
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200000000200ul, /*size=*/0x10ul);
  syscall(__NR_getdents64, /*fd=*/r[0], /*ent=*/0ul, /*count=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}