// https://syzkaller.appspot.com/bug?id=978ae680d1ca9607d2c5ba63b734e3012a122ac4
// 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;
}

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");
}

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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  capset arguments: [
  //    hdr: nil
  //    data: nil
  //  ]
  syscall(__NR_capset, /*hdr=*/0ul, /*data=*/0ul);
  //  bpf$MAP_CREATE arguments: [
  //    cmd: const = 0x0 (8 bytes)
  //    arg: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {05 00 00 00 05 00 00 00 02 00 00 00 04} (length
  //          0xd)
  //        }
  //      }
  //    }
  //    size: len = 0x48 (8 bytes)
  //  ]
  //  returns fd_bpf_map
  memcpy((void*)0x200000000580,
         "\x05\x00\x00\x00\x05\x00\x00\x00\x02\x00\x00\x00\x04", 13);
  res =
      syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000580ul, /*size=*/0x48ul);
  if (res != -1)
    r[0] = res;
  //  bpf$PROG_LOAD arguments: [
  //    cmd: const = 0x5 (8 bytes)
  //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
  //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
  //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
  //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
  //        type: bpf_prog_type = 0x11 (4 bytes)
  //        ninsn: bytesize8 = 0x14 (4 bytes)
  //        insns: ptr[inout, array[ANYUNION]] {
  //          array[ANYUNION] {
  //            union ANYUNION {
  //              ANYBLOB: buffer: {18 02 00 00 00 00 00 00 00 00 00 00 00 00 00
  //              00 18 01 00 00 78 6c 6c 25 00 00 00 00 07 00 00 00 7b 1a f8 ff
  //              00 00 00 00 bf a1 00 00 00 00 00 00 07 01 00 00 f8 ff ff ff b7
  //              00 00 00 00 00 00 00 b7 03 00 00 00 00 00 00 85 00 00 00 04 00
  //              00 00 18 11 00 00} (length 0x54)
  //            }
  //            union ANYUNION {
  //              ANYRES32: ANYRES32 (resource)
  //            }
  //            union ANYUNION {
  //              ANYBLOB: buffer: {00 00 00 00 00 00 00 00 b7 08 00 00 00 00 00
  //              00 7b 8a f8 ff 00 00 00 00 bf a2 00 00 00 00 00 00 07 02 00 00
  //              f8 ff ff ff b7 03 00 00 08 00 00 00 b7 04 00 00 00 00 00 00 85
  //              00 00 00 01 00 00 00 95} (length 0x41)
  //            }
  //          }
  //        }
  //        license: ptr[in, buffer] {
  //          buffer: {47 50 4c 00} (length 0x4)
  //        }
  //        loglev: int32 = 0x0 (4 bytes)
  //        logsize: len = 0x0 (4 bytes)
  //        log: nil
  //        kern_version: bpf_kern_version = 0x0 (4 bytes)
  //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
  //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}
  //        (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type:
  //        union bpf_prog_attach_types {
  //          fallback: bpf_attach_types = 0x1d (4 bytes)
  //        }
  //        btf_fd: fd_btf (resource)
  //        func_info_rec_size: const = 0x0 (4 bytes)
  //        func_info: nil
  //        func_info_cnt: len = 0x0 (4 bytes)
  //        line_info_rec_size: const = 0x0 (4 bytes)
  //        line_info: nil
  //        line_info_cnt: len = 0x0 (4 bytes)
  //        attach_btf_id: bpf_btf_id (resource)
  //        attach_prog_fd: fd_bpf_prog (resource)
  //        core_relo_cnt: len = 0x0 (4 bytes)
  //        fd_array: nil
  //        core_relos: nil
  //        core_relo_rec_size: const = 0x0 (4 bytes)
  //        log_true_size: int32 = 0x0 (4 bytes)
  //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
  //        bpf_prog_attach_types, bpf_btf_id[opt],
  //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
  //          void: buffer: {} (length 0x0)
  //        }
  //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
  //        bpf_prog_attach_types, bpf_btf_id[opt],
  //        fd_bpf_prog[opt]]_pad_wrapper {
  //          value: const = 0x0 (4 bytes)
  //        }
  //      }
  //    }
  //    size: len = 0x94 (8 bytes)
  //  ]
  //  returns fd_bpf_prog
  *(uint32_t*)0x2000000004c0 = 0x11;
  *(uint32_t*)0x2000000004c4 = 0x14;
  *(uint64_t*)0x2000000004c8 = 0x200000000000;
  memcpy((void*)0x200000000000,
         "\x18\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x01\x00\x00\x78\x6c\x6c\x25\x00\x00\x00\x00\x07\x00\x00\x00\x7b\x1a"
         "\xf8\xff\x00\x00\x00\x00\xbf\xa1\x00\x00\x00\x00\x00\x00\x07\x01\x00"
         "\x00\xf8\xff\xff\xff\xb7\x00\x00\x00\x00\x00\x00\x00\xb7\x03\x00\x00"
         "\x00\x00\x00\x00\x85\x00\x00\x00\x04\x00\x00\x00\x18\x11\x00\x00",
         84);
  *(uint32_t*)0x200000000054 = r[0];
  memcpy((void*)0x200000000058,
         "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x08\x00\x00\x00\x00\x00\x00\x7b"
         "\x8a\xf8\xff\x00\x00\x00\x00\xbf\xa2\x00\x00\x00\x00\x00\x00\x07\x02"
         "\x00\x00\xf8\xff\xff\xff\xb7\x03\x00\x00\x08\x00\x00\x00\xb7\x04\x00"
         "\x00\x00\x00\x00\x00\x85\x00\x00\x00\x01\x00\x00\x00\x95",
         65);
  *(uint64_t*)0x2000000004d0 = 0x200000000100;
  memcpy((void*)0x200000000100, "GPL\000", 4);
  *(uint32_t*)0x2000000004d8 = 0;
  *(uint32_t*)0x2000000004dc = 0;
  *(uint64_t*)0x2000000004e0 = 0;
  *(uint32_t*)0x2000000004e8 = 0;
  *(uint32_t*)0x2000000004ec = 0;
  memset((void*)0x2000000004f0, 0, 16);
  *(uint32_t*)0x200000000500 = 0;
  *(uint32_t*)0x200000000504 = 0x1d;
  *(uint32_t*)0x200000000508 = -1;
  *(uint32_t*)0x20000000050c = 0;
  *(uint64_t*)0x200000000510 = 0;
  *(uint32_t*)0x200000000518 = 0;
  *(uint32_t*)0x20000000051c = 0;
  *(uint64_t*)0x200000000520 = 0;
  *(uint32_t*)0x200000000528 = 0;
  *(uint32_t*)0x20000000052c = 0;
  *(uint32_t*)0x200000000530 = 0;
  *(uint32_t*)0x200000000534 = 0;
  *(uint64_t*)0x200000000538 = 0;
  *(uint64_t*)0x200000000540 = 0;
  *(uint32_t*)0x200000000548 = 0;
  *(uint32_t*)0x20000000054c = 0;
  *(uint32_t*)0x200000000550 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000004c0ul, /*size=*/0x94ul);
  if (res != -1)
    r[1] = res;
  //  bpf$BPF_RAW_TRACEPOINT_OPEN arguments: [
  //    cmd: const = 0x11 (8 bytes)
  //    arg: ptr[in, bpf_raw_tracepoint] {
  //      bpf_raw_tracepoint {
  //        name: ptr[in, buffer] {
  //          buffer: {74 6c 62 5f 66 6c 75 73 68 00} (length 0xa)
  //        }
  //        prog_fd: fd_bpf_prog_raw_tracepoint (resource)
  //        pad: const = 0x0 (4 bytes)
  //        cookie: int64 = 0x0 (8 bytes)
  //      }
  //    }
  //    size: len = 0x10 (8 bytes)
  //  ]
  //  returns fd_perf_base
  *(uint64_t*)0x2000000004c0 = 0x200000000300;
  memcpy((void*)0x200000000300, "tlb_flush\000", 10);
  *(uint32_t*)0x2000000004c8 = r[1];
  *(uint32_t*)0x2000000004cc = 0;
  *(uint64_t*)0x2000000004d0 = 0;
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x2000000004c0ul, /*size=*/0x10ul);
  //  syz_mount_image$ext4 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 74 34 00} (length 0x5)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0xc40a (8 bytes)
  //    opts: ptr[in, fs_options[ext4_options]] {
  //      fs_options[ext4_options] {
  //        elems: array[fs_opt_elem[ext4_options]] {
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noblock_validity: buffer: {6e 6f 62 6c 6f 63 6b 5f 76 61 6c 69
  //              64 69 74 79} (length 0x10)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              dioread_lock: buffer: {64 69 6f 72 65 61 64 5f 6c 6f 63 6b}
  //              (length 0xc)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              nobh: buffer: {6e 6f 62 68} (length 0x4)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              nojournal_checksum: buffer: {6e 6f 6a 6f 75 72 6e 61 6c 5f 63
  //              68 65 63 6b 73 75 6d} (length 0x12)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noquota: buffer: {6e 6f 71 75 6f 74 61} (length 0x7)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              usrjquota: buffer: {75 73 72 6a 71 75 6f 74 61 3d} (length
  //              0xa)
  //            }
  //            comma: const = 0x2e (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              grpquota: buffer: {67 72 70 71 75 6f 74 61} (length 0x8)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              barrier_val: fs_opt["barrier", fmt[hex, int32]] {
  //                name: buffer: {62 61 72 72 69 65 72} (length 0x7)
  //                eq: const = 0x3d (1 bytes)
  //                val: int32 = 0x8 (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              jqfmt_vfsv0: buffer: {6a 71 66 6d 74 3d 76 66 73 76 30}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noload: buffer: {6e 6f 6c 6f 61 64} (length 0x6)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x2c (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x464 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x464)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000440, "ext4\000", 5);
  memcpy((void*)0x2000000000c0, "./file0\000", 8);
  memcpy((void*)0x200000000680, "noblock_validity", 16);
  *(uint8_t*)0x200000000690 = 0x2c;
  memcpy((void*)0x200000000691, "dioread_lock", 12);
  *(uint8_t*)0x20000000069d = 0x2c;
  memcpy((void*)0x20000000069e, "nobh", 4);
  *(uint8_t*)0x2000000006a2 = 0x2c;
  memcpy((void*)0x2000000006a3, "nojournal_checksum", 18);
  *(uint8_t*)0x2000000006b5 = 0x2c;
  memcpy((void*)0x2000000006b6, "noquota", 7);
  *(uint8_t*)0x2000000006bd = 0x2c;
  memcpy((void*)0x2000000006be, "usrjquota=", 10);
  *(uint8_t*)0x2000000006c8 = 0x2e;
  memcpy((void*)0x2000000006c9, "grpquota", 8);
  *(uint8_t*)0x2000000006d1 = 0x2c;
  memcpy((void*)0x2000000006d2, "barrier", 7);
  *(uint8_t*)0x2000000006d9 = 0x3d;
  sprintf((char*)0x2000000006da, "0x%016llx", (long long)8);
  *(uint8_t*)0x2000000006ec = 0x2c;
  memcpy((void*)0x2000000006ed, "jqfmt=vfsv0", 11);
  *(uint8_t*)0x2000000006f8 = 0x2c;
  memcpy((void*)0x2000000006f9, "noload", 6);
  *(uint8_t*)0x2000000006ff = 0x2c;
  *(uint8_t*)0x200000000700 = 0x2c;
  memcpy(
      (void*)0x200000000a40,
      "\x78\x9c\xec\xdb\xcb\x6f\x1b\xc5\x1f\x00\xf0\xef\xda\x71\xda\x5f\x1f\xbf"
      "\x84\x52\x1e\x2d\x05\x0c\xe5\x11\xf1\x48\x9a\xb4\x40\x0f\x5c\x8a\x40\xea"
      "\x05\x09\x09\x0e\xe5\x18\xd2\xb4\x2a\x75\x1b\xd4\x04\x89\x56\x15\x0d\x1c"
      "\xca\x11\xf5\x2f\x00\x8e\x48\xfc\x05\x9c\xe8\x05\x01\x27\x10\x57\xb8\x23"
      "\xa4\x0a\xe5\x42\xe0\x80\x8c\xd6\x5e\x1b\xd7\x8e\x53\xc7\x89\xe3\xa4\xfe"
      "\x7c\xa4\x8d\x67\x76\x67\xbd\xf3\xdd\xdd\x89\x67\x67\xec\x00\x06\x56\x31"
      "\xfd\x93\x44\xec\x89\x88\x5f\x22\x62\x24\x22\xf2\xcd\x05\x8a\xd5\x97\xe5"
      "\xa5\xab\x33\x7f\x2d\x5d\x9d\x49\xa2\x5c\x7e\xf3\x8f\x24\xdd\x2d\xfe\x5c"
      "\xba\x3a\x53\x2b\x9a\x64\xaf\xbb\xb3\xcc\x58\xae\xbe\xaa\xc5\xfc\xe5\x2b"
      "\xe7\xa7\x4b\xa5\xd9\x4b\x59\x7e\x62\xe1\xc2\x7b\x13\xf3\x97\xaf\x3c\x7f"
      "\xee\xc2\xf4\xd9\xd9\xb3\xb3\x17\xa7\x8e\x1f\x3f\x76\x74\xf2\xa5\x17\xa7"
      "\x5e\xd8\x90\x38\xf7\xa6\x75\x3d\xf8\xe1\xdc\xa1\x03\x27\xdf\xbe\xf1\xfa"
      "\xcc\xa9\x1b\xef\x7c\xff\x55\x5a\xb9\x3d\xd9\xf6\xc6\x38\xaa\x46\xd7\x7d"
      "\xcc\x62\x14\xdb\x9e\x80\x27\xd7\xfd\xee\x5b\xcb\xde\xec\xb5\xed\x05\x67"
      "\x4b\x4a\xdb\xfa\x50\x44\x14\x2a\xed\x7f\x24\xf2\x95\x5c\xd5\x48\xbc\xf6"
      "\x71\x5f\x2b\x07\xf4\x54\xb9\x5c\x2e\xef\x68\x59\x5b\xef\x01\x2c\x96\x81"
      "\xbb\x58\x12\xfd\xae\x01\xd0\x1f\xb5\x0f\xfa\xf4\xf9\xb7\xb6\x6c\x62\xf7"
      "\xa3\xef\x6e\x9d\xa8\x3e\x00\xa5\x71\x2f\x67\x4b\x75\xcb\x50\xe4\xb2\x32"
      "\x85\x86\xe7\xdb\x8d\x56\x8c\x88\x53\x8b\x7f\x7f\x96\x2e\xb1\xe2\x38\x04"
      "\x00\xc0\xc6\xfa\x26\xed\xff\x3c\xb7\x52\xff\x2f\x17\xf7\x37\x94\xfb\x7f"
      "\x36\x37\x34\x1a\x11\xf7\x44\xc4\xbe\x88\xb8\x37\x22\xf6\x47\xc4\x7d\x11"
      "\x95\xb2\x0f\x44\xc4\x83\x6b\x3c\x7e\xb1\x29\xdf\xda\xff\xf9\xe9\x7f\x5d"
      "\x05\xd6\xa1\x5b\x27\x22\x79\x39\x9b\xdb\xba\xbd\xff\x57\xeb\xfd\xc5\x68"
      "\x3e\xcb\xed\xad\xc4\x5f\x48\xce\x9c\x2b\xcd\x1e\xc9\xce\xc9\x58\x14\x76"
      "\xa4\xf9\xc9\x55\x8e\x71\xf3\xd5\x9f\x3f\x6d\xb7\xad\xb1\xff\x97\x2e\xe9"
      "\xf1\x6b\x7d\xc1\xac\x1e\xbf\x0f\x35\x0d\xd0\x9d\x9e\x5e\x98\x5e\x4f\xcc"
      "\x8d\x6e\x7d\x54\x19\x03\xbc\xd6\x1a\x7f\x52\x9f\x09\x48\x22\xe2\x40\x44"
      "\x1c\xec\xe2\xfd\x77\x46\xc4\xb9\x67\xbe\x3c\xd4\xb2\xa1\x61\xa2\xe8\xb6"
      "\xf8\x23\x9a\xe2\x5f\xc5\x50\x17\x15\x6a\x52\xfe\x22\xe2\xe9\xea\xf5\x5f"
      "\x8c\xa6\xf8\x1b\xab\xba\xca\xfc\xe4\xc4\xce\x28\xcd\x1e\x99\xa8\xdd\x15"
      "\xad\x7e\xf8\xf1\xfa\x1b\xed\x8e\x7f\xe7\xeb\xdf\x5b\xe9\xf5\xdf\xb5\xe2"
      "\xfd\x5f\x8f\x7f\x34\x69\x9c\xaf\x9d\x5f\xfb\x31\xae\xff\xfa\x49\xdb\x67"
      "\x9a\x6e\xef\xff\xe1\xe4\xad\x4a\x7a\x38\x5b\xf7\xc1\xf4\xc2\xc2\xa5\xc9"
      "\x88\xe1\x64\xb1\x75\xfd\xd4\x7f\xfb\xd6\xf2\xb5\xf2\x69\xfc\x63\x87\x57"
      "\x6e\xff\xfb\x22\xfe\xf9\x3c\xdb\xef\xa1\x88\x48\x6f\xe2\x87\x23\xe2\x91"
      "\x88\x78\x34\xab\xfb\x63\x11\xf1\x78\x44\x1c\x5e\x25\xfe\xef\x5e\x79\xe2"
      "\xdd\xee\xe3\xef\xad\x34\xfe\xd3\x6b\xba\xfe\x6b\x4f\xe4\xcf\x7f\xfb\x75"
      "\xbb\xe3\x77\x76\xfd\x8f\x55\x52\x63\xd9\x9a\x4e\xfe\xff\x75\x5a\xc1\xf5"
      "\x9c\x3b\x00\x00\x00\xd8\x2e\x72\x95\xef\xc0\x27\xb9\xf1\x7a\x3a\x97\x1b"
      "\x1f\xaf\x7e\x87\x7f\x7f\xec\xca\x95\xe6\xe6\x17\x9e\x3d\x33\xf7\xfe\xc5"
      "\xd3\xd5\xef\xca\x8f\x46\x21\x57\x1b\xe9\x1a\x69\x18\x0f\x9d\xcc\xc6\x86"
      "\x6b\xf9\xa9\xa6\xfc\xd1\x6c\x2c\x30\x95\xe6\xc7\x67\xe6\x4a\xbd\x9a\x53"
      "\x07\x3a\xb3\xbb\x4d\xfb\x4f\xfd\x96\xef\x77\xed\x80\x9e\x5b\xd3\x3c\x9a"
      "\x5f\x78\xc1\x5d\x65\x03\xe6\xd1\x81\x6d\x4a\xfb\x87\xc1\xa5\xfd\xc3\xe0"
      "\xd2\xfe\x61\x70\xad\xd4\xfe\xaf\x45\x2c\xf7\xa1\x2a\xc0\x26\xf3\xf9\x0f"
      "\x83\x4b\xfb\x87\xc1\xa5\xfd\xc3\xe0\xd2\xfe\x61\x20\xad\xe7\x77\xfd\xab"
      "\x25\xf6\x9d\xec\xd5\x3b\x6f\xc7\xc4\xcd\x88\x68\x57\x26\xdf\xd7\x1a\x3e"
      "\xb5\xbb\xdb\xdd\x23\x57\x3a\x30\xbc\x35\x4e\xef\x1d\x13\x85\xec\x6e\xaf"
      "\xaf\xc9\x6d\x91\x8a\x55\x12\x3b\x22\xa2\xd3\xc2\xd7\x62\xb3\x2a\xd6\xe7"
      "\x7f\x4c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1b\xe4\xdf\x00"
      "\x00\x00\xff\xff\xa7\x89\xe0\x21",
      1124);
  syz_mount_image(/*fs=*/0x200000000440, /*dir=*/0x2000000000c0,
                  /*flags=MS_REC|MS_SILENT|MS_NOSUID|MS_NOEXEC|0x400*/ 0xc40a,
                  /*opts=*/0x200000000680, /*chdir=*/1, /*size=*/0x464,
                  /*img=*/0x200000000a40);
  //  mprotect arguments: [
  //    addr: VMA[0xf000]
  //    len: len = 0xf000 (8 bytes)
  //    prot: mmap_prot = 0x1 (8 bytes)
  //  ]
  syscall(__NR_mprotect, /*addr=*/0x200000000000ul, /*len=*/0xf000ul,
          /*prot=PROT_READ*/ 1ul);
}
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;
}