// https://syzkaller.appspot.com/bug?id=f1f12cd146f61eb399d3d188703913f53a1cb159
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sched.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/epoll.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/loop.h>
#include <linux/rfkill.h>

#ifndef __NR_fsconfig
#define __NR_fsconfig 431
#endif
#ifndef __NR_fspick
#define __NR_fspick 433
#endif
#ifndef __NR_memfd_create
#define __NR_memfd_create 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_mount
#define __NR_mount 40
#endif

static unsigned long long procid;

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;
}

#define MAX_FDS 30

#define BTPROTO_HCI 1
#define ACL_LINK 1
#define SCAN_PAGE 2

typedef struct {
  uint8_t b[6];
} __attribute__((packed)) bdaddr_t;

#define HCI_COMMAND_PKT 1
#define HCI_EVENT_PKT 4
#define HCI_VENDOR_PKT 0xff

struct hci_command_hdr {
  uint16_t opcode;
  uint8_t plen;
} __attribute__((packed));

struct hci_event_hdr {
  uint8_t evt;
  uint8_t plen;
} __attribute__((packed));

#define HCI_EV_CONN_COMPLETE 0x03
struct hci_ev_conn_complete {
  uint8_t status;
  uint16_t handle;
  bdaddr_t bdaddr;
  uint8_t link_type;
  uint8_t encr_mode;
} __attribute__((packed));

#define HCI_EV_CONN_REQUEST 0x04
struct hci_ev_conn_request {
  bdaddr_t bdaddr;
  uint8_t dev_class[3];
  uint8_t link_type;
} __attribute__((packed));

#define HCI_EV_REMOTE_FEATURES 0x0b
struct hci_ev_remote_features {
  uint8_t status;
  uint16_t handle;
  uint8_t features[8];
} __attribute__((packed));

#define HCI_EV_CMD_COMPLETE 0x0e
struct hci_ev_cmd_complete {
  uint8_t ncmd;
  uint16_t opcode;
} __attribute__((packed));

#define HCI_OP_WRITE_SCAN_ENABLE 0x0c1a

#define HCI_OP_READ_BUFFER_SIZE 0x1005
struct hci_rp_read_buffer_size {
  uint8_t status;
  uint16_t acl_mtu;
  uint8_t sco_mtu;
  uint16_t acl_max_pkt;
  uint16_t sco_max_pkt;
} __attribute__((packed));

#define HCI_OP_READ_BD_ADDR 0x1009
struct hci_rp_read_bd_addr {
  uint8_t status;
  bdaddr_t bdaddr;
} __attribute__((packed));

#define HCI_EV_LE_META 0x3e
struct hci_ev_le_meta {
  uint8_t subevent;
} __attribute__((packed));

#define HCI_EV_LE_CONN_COMPLETE 0x01
struct hci_ev_le_conn_complete {
  uint8_t status;
  uint16_t handle;
  uint8_t role;
  uint8_t bdaddr_type;
  bdaddr_t bdaddr;
  uint16_t interval;
  uint16_t latency;
  uint16_t supervision_timeout;
  uint8_t clk_accurancy;
} __attribute__((packed));

struct hci_dev_req {
  uint16_t dev_id;
  uint32_t dev_opt;
};

struct vhci_vendor_pkt_request {
  uint8_t type;
  uint8_t opcode;
} __attribute__((packed));

struct vhci_pkt {
  uint8_t type;
  union {
    struct {
      uint8_t opcode;
      uint16_t id;
    } __attribute__((packed)) vendor_pkt;
    struct hci_command_hdr command_hdr;
  };
} __attribute__((packed));

#define HCIDEVUP _IOW('H', 201, int)
#define HCISETSCAN _IOW('H', 221, int)

static int vhci_fd = -1;

static void rfkill_unblock_all()
{
  int fd = open("/dev/rfkill", O_WRONLY);
  if (fd < 0)
    exit(1);
  struct rfkill_event event = {0};
  event.idx = 0;
  event.type = RFKILL_TYPE_ALL;
  event.op = RFKILL_OP_CHANGE_ALL;
  event.soft = 0;
  event.hard = 0;
  if (write(fd, &event, sizeof(event)) < 0)
    exit(1);
  close(fd);
}

static void hci_send_event_packet(int fd, uint8_t evt, void* data,
                                  size_t data_len)
{
  struct iovec iv[3];
  struct hci_event_hdr hdr;
  hdr.evt = evt;
  hdr.plen = data_len;
  uint8_t type = HCI_EVENT_PKT;
  iv[0].iov_base = &type;
  iv[0].iov_len = sizeof(type);
  iv[1].iov_base = &hdr;
  iv[1].iov_len = sizeof(hdr);
  iv[2].iov_base = data;
  iv[2].iov_len = data_len;
  if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0)
    exit(1);
}

static void hci_send_event_cmd_complete(int fd, uint16_t opcode, void* data,
                                        size_t data_len)
{
  struct iovec iv[4];
  struct hci_event_hdr hdr;
  hdr.evt = HCI_EV_CMD_COMPLETE;
  hdr.plen = sizeof(struct hci_ev_cmd_complete) + data_len;
  struct hci_ev_cmd_complete evt_hdr;
  evt_hdr.ncmd = 1;
  evt_hdr.opcode = opcode;
  uint8_t type = HCI_EVENT_PKT;
  iv[0].iov_base = &type;
  iv[0].iov_len = sizeof(type);
  iv[1].iov_base = &hdr;
  iv[1].iov_len = sizeof(hdr);
  iv[2].iov_base = &evt_hdr;
  iv[2].iov_len = sizeof(evt_hdr);
  iv[3].iov_base = data;
  iv[3].iov_len = data_len;
  if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0)
    exit(1);
}

static bool process_command_pkt(int fd, char* buf, ssize_t buf_size)
{
  struct hci_command_hdr* hdr = (struct hci_command_hdr*)buf;
  if (buf_size < (ssize_t)sizeof(struct hci_command_hdr) ||
      hdr->plen != buf_size - sizeof(struct hci_command_hdr))
    exit(1);
  switch (hdr->opcode) {
  case HCI_OP_WRITE_SCAN_ENABLE: {
    uint8_t status = 0;
    hci_send_event_cmd_complete(fd, hdr->opcode, &status, sizeof(status));
    return true;
  }
  case HCI_OP_READ_BD_ADDR: {
    struct hci_rp_read_bd_addr rp = {0};
    rp.status = 0;
    memset(&rp.bdaddr, 0xaa, 6);
    hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp));
    return false;
  }
  case HCI_OP_READ_BUFFER_SIZE: {
    struct hci_rp_read_buffer_size rp = {0};
    rp.status = 0;
    rp.acl_mtu = 1021;
    rp.sco_mtu = 96;
    rp.acl_max_pkt = 4;
    rp.sco_max_pkt = 6;
    hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp));
    return false;
  }
  }
  char dummy[0xf9] = {0};
  hci_send_event_cmd_complete(fd, hdr->opcode, dummy, sizeof(dummy));
  return false;
}

static void* event_thread(void* arg)
{
  while (1) {
    char buf[1024] = {0};
    ssize_t buf_size = read(vhci_fd, buf, sizeof(buf));
    if (buf_size < 0)
      exit(1);
    if (buf_size > 0 && buf[0] == HCI_COMMAND_PKT) {
      if (process_command_pkt(vhci_fd, buf + 1, buf_size - 1))
        break;
    }
  }
  return NULL;
}
#define HCI_HANDLE_1 200
#define HCI_HANDLE_2 201

#define HCI_PRIMARY 0
#define HCI_OP_RESET 0x0c03

static void initialize_vhci()
{
  int hci_sock = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
  if (hci_sock < 0)
    exit(1);
  vhci_fd = open("/dev/vhci", O_RDWR);
  if (vhci_fd == -1)
    exit(1);
  const int kVhciFd = 202;
  if (dup2(vhci_fd, kVhciFd) < 0)
    exit(1);
  close(vhci_fd);
  vhci_fd = kVhciFd;
  struct vhci_vendor_pkt_request vendor_pkt_req = {HCI_VENDOR_PKT, HCI_PRIMARY};
  if (write(vhci_fd, &vendor_pkt_req, sizeof(vendor_pkt_req)) !=
      sizeof(vendor_pkt_req))
    exit(1);
  struct vhci_pkt vhci_pkt;
  if (read(vhci_fd, &vhci_pkt, sizeof(vhci_pkt)) != sizeof(vhci_pkt))
    exit(1);
  if (vhci_pkt.type == HCI_COMMAND_PKT &&
      vhci_pkt.command_hdr.opcode == HCI_OP_RESET) {
    char response[1] = {0};
    hci_send_event_cmd_complete(vhci_fd, HCI_OP_RESET, response,
                                sizeof(response));
    if (read(vhci_fd, &vhci_pkt, sizeof(vhci_pkt)) != sizeof(vhci_pkt))
      exit(1);
  }
  if (vhci_pkt.type != HCI_VENDOR_PKT)
    exit(1);
  int dev_id = vhci_pkt.vendor_pkt.id;
  pthread_t th;
  if (pthread_create(&th, NULL, event_thread, NULL))
    exit(1);
  int ret = ioctl(hci_sock, HCIDEVUP, dev_id);
  if (ret) {
    if (errno == ERFKILL) {
      rfkill_unblock_all();
      ret = ioctl(hci_sock, HCIDEVUP, dev_id);
    }
    if (ret && errno != EALREADY)
      exit(1);
  }
  struct hci_dev_req dr = {0};
  dr.dev_id = dev_id;
  dr.dev_opt = SCAN_PAGE;
  if (ioctl(hci_sock, HCISETSCAN, &dr))
    exit(1);
  struct hci_ev_conn_request request;
  memset(&request, 0, sizeof(request));
  memset(&request.bdaddr, 0xaa, 6);
  *(uint8_t*)&request.bdaddr.b[5] = 0x10;
  request.link_type = ACL_LINK;
  hci_send_event_packet(vhci_fd, HCI_EV_CONN_REQUEST, &request,
                        sizeof(request));
  struct hci_ev_conn_complete complete;
  memset(&complete, 0, sizeof(complete));
  complete.status = 0;
  complete.handle = HCI_HANDLE_1;
  memset(&complete.bdaddr, 0xaa, 6);
  *(uint8_t*)&complete.bdaddr.b[5] = 0x10;
  complete.link_type = ACL_LINK;
  complete.encr_mode = 0;
  hci_send_event_packet(vhci_fd, HCI_EV_CONN_COMPLETE, &complete,
                        sizeof(complete));
  struct hci_ev_remote_features features;
  memset(&features, 0, sizeof(features));
  features.status = 0;
  features.handle = HCI_HANDLE_1;
  hci_send_event_packet(vhci_fd, HCI_EV_REMOTE_FEATURES, &features,
                        sizeof(features));
  struct {
    struct hci_ev_le_meta le_meta;
    struct hci_ev_le_conn_complete le_conn;
  } le_conn;
  memset(&le_conn, 0, sizeof(le_conn));
  le_conn.le_meta.subevent = HCI_EV_LE_CONN_COMPLETE;
  memset(&le_conn.le_conn.bdaddr, 0xaa, 6);
  *(uint8_t*)&le_conn.le_conn.bdaddr.b[5] = 0x11;
  le_conn.le_conn.role = 1;
  le_conn.le_conn.handle = HCI_HANDLE_2;
  hci_send_event_packet(vhci_fd, HCI_EV_LE_META, &le_conn, sizeof(le_conn));
  pthread_join(th, NULL);
  close(hci_sock);
}

//% 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 setup_common()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setsid();
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  setup_common();
  initialize_vhci();
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  setup_binderfs();
  loop();
  exit(1);
}

static void close_fds()
{
  for (int fd = 3; fd < MAX_FDS; fd++)
    close(fd);
}

uint64_t r[1] = {0xffffffffffffffff};

void loop(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000140, "nilfs2\000", 7);
  memcpy((void*)0x20000000, "./file0\000", 8);
  *(uint64_t*)0x200001c0 = 0;
  sprintf((char*)0x200001c8, "%020llu", (long long)-1);
  sprintf((char*)0x200001dc, "%023llo", (long long)-1);
  sprintf((char*)0x200001f3, "0x%016llx", (long long)-1);
  *(uint32_t*)0x20000205 = -1;
  *(uint32_t*)0x20000209 = -1;
  *(uint32_t*)0x2000020d = -1;
  *(uint8_t*)0x20000211 = -1;
  sprintf((char*)0x20000212, "%020llu", (long long)0);
  sprintf((char*)0x20000226, "%023llo", (long long)0);
  sprintf((char*)0x2000023d, "%023llo", (long long)-1);
  memcpy(
      (void*)0x20000980,
      "\x78\x9c\xec\xdd\x4b\x8c\x1c\x47\x19\x00\xe0\xee\xdd\x9d\xb5\x9d\x07\x1e"
      "\x07\x9b\x18\x27\x24\x36\x81\x24\x02\xb2\x6b\xef\x1a\xf3\xb0\x20\x8e\xe2"
      "\x0b\x56\x8c\xb8\x45\x8a\xb8\x58\x8e\x13\x2c\x1c\x83\x70\x24\x48\x14\x09"
      "\xdb\x27\x6e\x24\xb2\xcc\x0d\xf1\x10\xa7\x5c\x22\x40\x48\xe4\x82\xac\x9c"
      "\xb8\x44\x22\x96\xb8\xe4\x14\x38\x70\xc0\x32\x52\x24\x0e\x90\x60\x0f\xda"
      "\xd9\xaa\xd9\x99\xdf\x33\xe9\x59\xef\xa3\x77\x76\xbe\x4f\xaa\xa9\xe9\xae"
      "\x9a\xae\xea\xd9\x9e\xde\x7e\x55\x55\x01\x8c\xad\x89\xf6\x6b\xa3\xfd\x7a"
      "\xf9\xcd\x4b\x47\xff\xf9\xf0\x3f\xb6\x2d\xbc\x7f\xbc\x93\xa3\xd9\x7e\x9d"
      "\xea\x9a\x5a\xc8\x5d\xa6\xe9\xa9\xb0\xbc\xf7\x26\x17\xe3\x1b\xef\xbf\x72"
      "\xb2\x5f\x5c\x16\x73\xed\xd7\x3c\x3d\xd9\xf5\xd9\x3b\x8b\xa2\x38\x5f\xec"
      "\x2d\xae\x14\xcd\x62\xcf\xe5\xab\xaf\xbd\x3d\xf7\xd4\xf1\x0b\xc7\x2e\xee"
      "\x7b\xe7\xf5\xc3\xd7\xd6\x60\xd5\x01\x00\x60\xec\x7c\xeb\xca\xe1\x83\xbb"
      "\xfe\xf6\x97\xfb\x76\x7c\xf0\xc6\x03\x47\x8a\x2d\x9d\xf9\xf9\xf8\xbc\x99"
      "\xa6\xef\x4a\xc7\xfd\x47\xd2\x81\xff\x42\x34\x55\xe6\xf3\x87\xa5\xf3\x81"
      "\xb2\x2b\x74\x9b\x0e\xf9\xa6\x52\x98\x08\xf9\x26\xfb\xe4\x2b\xba\xf2\x35"
      "\x72\xbe\xad\xbd\x9f\x8b\xe5\x4f\x87\xe5\x36\x06\xe4\xdb\x52\x51\xfe\x64"
      "\x38\x47\x29\x43\x7d\x60\x94\xe5\xed\xb8\x59\x94\x13\x33\x3d\xd3\x13\x13"
      "\x33\x33\x8b\xe7\xe4\x45\xfb\xbc\x7e\xba\x9c\x39\x7b\xfa\xcc\x73\xe7\x6a"
      "\xaa\x28\xb0\xea\xfe\xfd\x60\x51\x14\x7b\x05\x61\xdc\x42\x6b\x7b\xe7\x47"
      "\x50\x7b\x5d\xea\x0b\x5d\xdf\x02\x40\xad\xe2\xfd\xc2\x5b\x9c\x8f\x57\x16"
      "\x56\xa6\xb3\xb4\xa9\xe1\xca\xbf\xfe\xc4\x44\xff\xcf\xf7\x6a\xac\x66\x1d"
      "\x19\x1f\xeb\xbd\xfd\x2b\x3f\x2e\xbf\xb7\x1e\xeb\x5d\x7e\xd5\xfa\xff\xe6"
      "\xc2\x1a\xaf\x3f\x63\x65\xf8\xad\x69\xeb\x9a\xd6\x63\xb5\xe5\xf5\xca\xbf"
      "\xa3\xbb\xd2\x74\xbc\x8f\x10\x9f\x5f\x5a\xee\xfe\x27\x2f\x6f\x32\x2c\x6f"
      "\xd8\x03\x80\x41\xf7\x11\x46\xe5\xfe\xc2\xa0\x7a\x4e\xae\x73\x3d\x6e\xd7"
      "\xa0\xfa\xc7\xed\x62\xb3\xfa\x5a\x8a\xf3\xf7\xf0\xf5\x90\xde\xfd\xfb\x89"
      "\x7f\xd3\x51\xf9\x1b\x03\xfd\xfd\x67\xc3\x5d\xff\xdf\xb6\x54\xb9\xda\xeb"
      "\x22\x08\x9b\x3b\xb4\xea\xdc\xf9\x00\xf5\xaa\x38\xad\x8f\xcf\xcd\xb5\x92"
      "\x9c\x1e\x9f\xeb\x8b\xe9\x5b\x2a\xd2\xb7\x56\xa4\x6f\xab\x48\xbf\xa3\x22"
      "\xfd\xce\x8a\x74\x18\x67\xbf\x7f\xf1\xa7\xc5\xab\x65\xd1\xb7\x3d\x5e\xb1"
      "\x78\xfe\xdf\xfe\xb1\x0c\x7b\x3d\x2c\x5f\x67\xbb\x3b\xc5\x1f\x5b\x66\x7d"
      "\xe2\xf5\xc8\xe5\x5e\x8f\x8b\xcf\xfd\x2e\xd7\x4a\xcb\x8f\xcf\x13\xc3\x46"
      "\xf6\xc7\x13\x4f\x9f\xfa\xf2\xb3\xcf\x5c\x5d\x7c\xfe\xbf\xec\x6c\xff\x37"
      "\xd3\xf6\xbe\x37\x4d\x37\xd3\x6f\xeb\x4a\xca\x90\xaf\x17\xc6\xeb\xea\x9d"
      "\x67\xff\x9b\xbd\xe5\x4c\x0c\xc8\x77\x4f\xa8\xcf\xdd\x7d\xf2\xb7\xdf\xef"
      "\xec\xcd\x57\xee\x5c\x5a\x4e\xd1\xb5\x9f\xb9\xa5\x1e\xbb\x7b\x3f\xb7\x7d"
      "\x50\xbe\xfb\x7b\xf3\x35\x43\xbe\x6d\x29\xc4\xc3\xa5\x78\x7c\x72\x47\xf8"
      "\x5c\x3e\xfe\xc8\xfb\xd5\xfc\x7d\x4d\x85\xf5\x6d\x84\xf5\x98\x0e\xf5\xc8"
      "\xfb\x95\x1d\x29\x1e\xad\xbb\x31\x6c\x54\x79\x7b\x1c\xf4\xfc\x7f\xde\x3e"
      "\x77\x17\x8d\xf2\xb9\xd3\x67\x4e\xed\x4f\xd3\x79\x3b\xfd\xf3\x64\x63\xcb"
      "\xc2\xfc\x03\xeb\x5c\x6f\x60\xe5\x86\x6d\xff\xb3\xbb\xe8\x6d\xff\x73\x57"
      "\x67\x7e\x63\xa2\x7b\xbf\xb0\x7d\x69\x7e\xd9\xbd\x5f\x68\x86\xf9\x73\x03"
      "\xe6\xcf\xa7\xe9\xfc\x7f\xee\x3b\x93\xdb\xda\xf3\x67\x4e\x7e\xef\xcc\xb3"
      "\xab\xbd\xf2\x30\xe6\xce\xbd\xf4\xf2\x77\x4f\x9c\x39\x73\xea\x07\xde\x78"
      "\xe3\x8d\x37\x9d\x37\x75\xef\x99\x80\xb5\x36\xfb\xe2\x0b\xdf\x9f\x3d\xf7"
      "\xd2\xcb\x8f\x9d\x7e\xe1\xc4\xf3\xa7\x9e\x3f\x75\x76\xfe\xd0\xa1\xf9\xb9"
      "\xb9\x43\x5f\x99\x3f\x38\xdb\x3e\xae\x9f\xed\x3e\xba\x07\x36\x93\xa5\x7f"
      "\xfa\x75\xd7\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18\xd6\x0f\x8f\x1d"
      "\xbd\xfa\xd7\xb7\xbe\xf4\xee\x62\xfb\xff\xa5\xf6\x7f\xb9\xfd\x7f\x7e\xf2"
      "\x37\xb7\xff\xff\x49\x68\xff\x1f\xdb\xc9\xe7\x76\xf0\xb9\x1d\xe0\x8e\x3e"
      "\xe9\xed\x3c\xa1\x83\xd5\xe9\x90\xaf\x91\xc2\xc7\x43\x7d\x77\x86\x72\x76"
      "\x85\xcf\x7d\x22\xc5\x9d\x71\xfc\x52\xfb\xff\x5c\x5c\xec\xd7\x35\xd7\xe7"
      "\xde\x30\x3f\xf6\xdf\x9b\xf3\x85\xee\x04\x6e\xe9\x2f\x65\x3a\xf4\x41\x12"
      "\xc7\x0b\xfc\x74\x8a\x2f\xa6\xf8\xd7\x05\xd4\xa8\xfc\x79\xff\xd9\x29\xae"
      "\xea\xdf\x3a\x6f\xeb\xb9\x7f\x0a\xfd\x52\x8c\xa6\xfc\x77\xcb\xfd\x99\xe4"
      "\x7e\x4c\x72\xfb\xef\x41\xfd\x3a\xe5\xfd\xff\x8e\xfe\x8b\xfd\xf1\x6a\xd7"
      "\x93\xd5\xb5\x1e\xcd\x09\xeb\x5e\x47\xa0\xbf\x7f\x6d\xb8\xfe\xbf\xd7\x24"
      "\x2c\x75\xf8\x59\x7b\x5d\xba\xce\x18\x6a\xaf\x8b\xb0\xd1\xc2\x8d\x56\xab"
      "\xb5\x9e\xe5\xb5\x5a\x1f\x35\x8a\x87\xb1\xa6\x80\xf5\x53\xf7\xf8\x9f\xf9"
      "\xba\x67\x8e\xcf\xfe\xe9\x1b\x5b\x17\x42\xce\x76\xfd\x89\xde\xfd\x65\xec"
      "\xbf\x14\x56\xa2\xee\xf1\x2f\x6b\x2b\x3f\x5f\x58\x1c\xd7\xf5\x1f\xb2\xfc"
      "\xd5\x1e\xff\xb3\x33\xfe\xdd\xd0\xfb\xbf\x30\x62\x5e\xf3\xf6\xca\xfd\xef"
      "\x2f\xae\xbd\xdb\x55\x6c\xb1\x67\x60\xf9\x5b\x8a\x9e\xf2\xe3\xfa\xe7\x7e"
      "\xa0\x77\x2e\xaf\xfc\x0f\x52\xf9\x79\x6d\x1e\x29\x06\x95\xdf\xbb\xfe\xad"
      "\x5f\x85\xf2\xe3\x0d\xa1\x21\x7d\x18\xca\xbf\x63\xc8\xf2\xe3\xfa\x5f\x5a"
      "\x6e\xc1\xa9\xc0\xff\xa5\xf2\xf3\xd7\xf6\xe8\x43\xc3\x96\xbf\xb8\x80\x72"
      "\xa2\xb7\x1e\xf1\xba\x71\xbe\xff\x17\xaf\x1b\x67\x37\xc2\xfa\xe7\xbe\x3d"
      "\x97\xbb\xfe\xb7\x3b\x50\xe3\xcd\x54\x3e\x8c\xb3\x51\x19\x67\x76\xb9\x7a"
      "\xc6\xff\xbd\xd0\x5a\xff\xf1\x7f\x57\x38\xc2\x50\x7c\x0e\xe3\x8b\x69\x3a"
      "\xef\x08\xf3\x73\x0e\x71\xbc\x93\xe5\xd6\x3f\x3f\x5f\x91\xff\x0f\xec\x0a"
      "\xcb\x2f\x2b\xfe\xbf\x19\xff\x77\xb4\x7d\x35\xc5\x55\xbf\x87\x3c\xfe\x6f"
      "\xde\x1e\x9b\x7d\xa6\x27\xba\xa6\x1b\x7d\xbe\xdb\xcd\xba\xaf\x81\x51\xf5"
      "\xde\xaa\xdd\xff\xeb\x7a\x62\x6e\x03\xdc\x47\x11\xc6\x27\x94\xb6\xb9\xdb"
      "\x0e\xad\x56\xab\xd6\x9b\x7c\xee\x30\xd6\xab\xee\xef\xbf\xee\xf3\x84\xba"
      "\xcb\xaf\xfb\xfb\xaf\x12\xc7\xff\x8d\xc7\xf0\x71\xfc\xdf\x98\x1e\xc7\xff"
      "\x8d\xe9\xfb\x2b\xd2\xdb\xd7\x15\x3f\x5c\x1a\xb4\x37\x7e\x5f\x71\xfc\xdf"
      "\x98\x1e\xc7\xff\x8d\xe9\xf7\x86\x72\xe3\xf8\xc0\xbb\x2b\xd2\x3f\x59\x91"
      "\xbe\xa7\x22\xfd\xbe\x8a\xf4\xfb\x2b\xd2\x3f\x55\x91\xbe\xaf\x22\xfd\x81"
      "\x8a\xf4\x07\x2b\xd2\xef\xa9\x48\x7f\xa8\x22\xfd\x33\xe1\x2f\x1e\xd3\x3f"
      "\x5b\xf1\xf9\x87\x2b\xd2\x1f\xfd\xe8\xf4\xf9\x1f\x55\x7c\x7e\xb3\xcb\xed"
      "\x51\xc6\x75\xfd\x61\x9c\xc5\xf6\x79\x7e\xff\x30\x3e\xf2\xfd\x9f\x41\xbf"
      "\xff\x9d\x15\xe9\xc0\xe8\xfa\xd9\x1b\x07\x9e\x7c\xe6\x77\xdf\x6e\x2e\xb6"
      "\xff\x9f\xee\x5c\x0f\xc9\xf7\xf1\x8e\xa4\xe9\x46\x3a\x77\x8e\xe7\x4b\xf1"
      "\xfa\xc9\x64\x4a\x7b\x2b\x4d\xff\x3d\xa4\x6f\xf4\xeb\x1d\x30\x4e\x62\xff"
      "\x19\xf1\xff\xfb\x23\x15\xe9\xc0\xe8\xca\xcf\x79\xf9\x7d\xc3\x18\x2a\xfb"
      "\xf7\xd8\x33\x6c\xbf\x55\x83\x8e\xf3\x19\x2d\x9f\x4b\xf1\xe7\x53\xfc\x85"
      "\x14\x3f\x96\xe2\x99\x14\xcf\xa6\xf8\x40\x8a\xe7\xd6\xa9\x7e\xac\x8d\x27"
      "\x7f\xfb\x87\xc3\xaf\x96\x4b\xe7\xfb\xdb\x43\xfa\xb0\xcf\x93\xc7\xf6\x40"
      "\xb1\x9f\xa8\xf9\x21\xeb\x13\xaf\x0f\x2c\xf7\x79\xf6\xd8\x8f\xdf\x72\xad"
      "\xb4\xfc\xdb\x6c\x0e\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x50\x9b\x89\xf6\xeb\xc1\x83"
      "\xbb\xcb\xa2\xb8\xfc\xe6\xa5\xa3\x4f\x1f\x3f\x3d\xbb\x30\xe7\xf1\x4e\x8e"
      "\x66\xfb\x75\xaa\x6b\xaa\xd1\xf9\x5c\x51\xec\x4f\xf1\x64\x8a\x7f\x99\xde"
      "\xdc\x78\xff\x95\x93\xdd\xf1\xcd\x14\x97\xc5\x5c\x51\x16\x65\x67\x7e\xf1"
      "\xcd\xeb\x9d\x92\xee\x2c\x8a\xe2\x7c\xb1\xb7\xb8\x52\x34\x8b\x3d\x97\xaf"
      "\xbe\xf6\xf6\xdc\x53\xc7\x2f\x1c\xbb\xb8\xef\x9d\xd7\x0f\x5f\x5b\xbb\x6f"
      "\x00\x00\x00\x00\x36\xbf\xff\x07\x00\x00\xff\xff\xdd\xb6\x1c\x52",
      2680);
  syz_mount_image(
      /*fs=*/0x20000140, /*dir=*/0x20000000,
      /*flags=MS_POSIXACL|MS_RDONLY|MS_NOEXEC|MS_NODIRATIME|0x204*/ 0x10a0d,
      /*opts=*/0x200001c0, /*chdir=*/1, /*size=*/0xa7a, /*img=*/0x20000980);
  memcpy((void*)0x20000040, "mtd", 3);
  sprintf((char*)0x20000043, "0x%016llx", (long long)0);
  memcpy((void*)0x200000c0, "./file0\000", 8);
  memcpy((void*)0x20001200, "jffs2\000", 6);
  syscall(__NR_mount, /*src=*/0x20000040ul, /*dst=*/0x200000c0ul,
          /*type=*/0x20001200ul, /*flags=MS_RDONLY*/ 1ul, /*data=*/0ul);
  memcpy((void*)0x20000380, "./file0/../file0\000", 17);
  res = syscall(__NR_fspick, /*dfd=*/0xffffff9c, /*path=*/0x20000380ul,
                /*flags=*/0ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_fsconfig, /*fd=*/r[0], /*cmd=*/7ul, /*key=*/0ul, /*value=*/0ul,
          /*aux=*/0ul);
  close_fds();
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  do_sandbox_none();
  return 0;
}