// https://syzkaller.appspot.com/bug?id=a7b1b5472279cda10aa7957cabf6f1d6d7e6fa2a
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/if_tun.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <net/if_arp.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/uio.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <stdint.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void fail(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

static void vsnprintf_check(char* str, size_t size, const char* format,
                            va_list args)
{
  int rv;

  rv = vsnprintf(str, size, format, args);
  if (rv < 0)
    fail("tun: snprintf failed");
  if ((size_t)rv >= size)
    fail("tun: string '%s...' doesn't fit into buffer", str);
}

static void snprintf_check(char* str, size_t size, const char* format, ...)
{
  va_list args;

  va_start(args, format);
  vsnprintf_check(str, size, format, args);
  va_end(args);
}

#define COMMAND_MAX_LEN 128
#define PATH_PREFIX                                                            \
  "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin "
#define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1)

static void execute_command(bool panic, const char* format, ...)
{
  va_list args;
  char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN];
  int rv;

  va_start(args, format);
  memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN);
  vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format, args);
  rv = system(command);
  if (panic && rv != 0)
    fail("tun: command \"%s\" failed with code %d", &command[0], rv);

  va_end(args);
}

static int tunfd = -1;
static int tun_frags_enabled;

#define SYZ_TUN_MAX_PACKET_SIZE 1000

#define MAX_PIDS 32
#define ADDR_MAX_LEN 32

#define LOCAL_MAC "aa:aa:aa:aa:%02hx:aa"
#define REMOTE_MAC "aa:aa:aa:aa:%02hx:bb"

#define LOCAL_IPV4 "172.20.%d.170"
#define REMOTE_IPV4 "172.20.%d.187"

#define LOCAL_IPV6 "fe80::%02hx:aa"
#define REMOTE_IPV6 "fe80::%02hx:bb"

#define IFF_NAPI 0x0010
#define IFF_NAPI_FRAGS 0x0020

static void initialize_tun(int id)
{
  if (id >= MAX_PIDS)
    fail("tun: no more than %d executors", MAX_PIDS);

  tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
  if (tunfd == -1) {
    printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
    printf("otherwise fuzzing or reproducing might not work as intended\n");
    return;
  }

  char iface[IFNAMSIZ];
  snprintf_check(iface, sizeof(iface), "syz%d", id);

  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, iface, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_NAPI | IFF_NAPI_FRAGS;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
    if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0)
      fail("tun: ioctl(TUNSETIFF) failed");
  }
  if (ioctl(tunfd, TUNGETIFF, (void*)&ifr) < 0)
    fail("tun: ioctl(TUNGETIFF) failed");
  tun_frags_enabled = (ifr.ifr_flags & IFF_NAPI_FRAGS) != 0;

  char local_mac[ADDR_MAX_LEN];
  snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC, id);
  char remote_mac[ADDR_MAX_LEN];
  snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC, id);

  char local_ipv4[ADDR_MAX_LEN];
  snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, id);
  char remote_ipv4[ADDR_MAX_LEN];
  snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, id);

  char local_ipv6[ADDR_MAX_LEN];
  snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, id);
  char remote_ipv6[ADDR_MAX_LEN];
  snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, id);

  execute_command(1, "sysctl -w net.ipv6.conf.%s.accept_dad=0", iface);

  execute_command(1, "sysctl -w net.ipv6.conf.%s.router_solicitations=0",
                  iface);

  execute_command(1, "ip link set dev %s address %s", iface, local_mac);
  execute_command(1, "ip addr add %s/24 dev %s", local_ipv4, iface);
  execute_command(1, "ip -6 addr add %s/120 dev %s", local_ipv6, iface);
  execute_command(1, "ip neigh add %s lladdr %s dev %s nud permanent",
                  remote_ipv4, remote_mac, iface);
  execute_command(1, "ip -6 neigh add %s lladdr %s dev %s nud permanent",
                  remote_ipv6, remote_mac, iface);
  execute_command(1, "ip link set dev %s up", iface);
}

#define DEV_IPV4 "172.20.%d.%d"
#define DEV_IPV6 "fe80::%02hx:%02hx"
#define DEV_MAC "aa:aa:aa:aa:%02hx:%02hx"

static void initialize_netdevices(int id)
{
  unsigned i;
  const char* devtypes[] = {"ip6gretap", "bridge", "vcan"};
  const char* devnames[] = {"lo",       "sit0",    "bridge0", "vcan0",
                            "tunl0",    "gre0",    "gretap0", "ip_vti0",
                            "ip6_vti0", "ip6tnl0", "ip6gre0", "ip6gretap0",
                            "erspan0"};

  for (i = 0; i < sizeof(devtypes) / (sizeof(devtypes[0])); i++)
    execute_command(0, "ip link add dev %s0 type %s", devtypes[i], devtypes[i]);
  for (i = 0; i < sizeof(devnames) / (sizeof(devnames[0])); i++) {
    char addr[ADDR_MAX_LEN];
    snprintf_check(addr, sizeof(addr), DEV_IPV4, id, id + 10);
    execute_command(0, "ip -4 addr add %s/24 dev %s", addr, devnames[i]);
    snprintf_check(addr, sizeof(addr), DEV_IPV6, id, id + 10);
    execute_command(0, "ip -6 addr add %s/120 dev %s", addr, devnames[i]);
    snprintf_check(addr, sizeof(addr), DEV_MAC, id, id + 10);
    execute_command(0, "ip link set dev %s address %s", devnames[i], addr);
    execute_command(0, "ip link set dev %s up", devnames[i]);
  }
}

static void setup_tun(uint64_t pid, bool enable_tun)
{
  if (enable_tun) {
    initialize_tun(pid);
    initialize_netdevices(pid);
  }
}

long r[2];
void loop()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0);
  r[0] = syscall(__NR_socket, 2, 1, 0);
  *(uint32_t*)0x20fae000 = 0x10;
  syscall(__NR_getsockopt, r[0], 0, 0x29, 0x20000000, 0x20fae000);
  r[1] = syscall(__NR_socket, 2, 0x80005, 0);
  memcpy((void*)0x20df6000, "\x66\x69\x6c\x74\x65\x72\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00",
         32);
  *(uint32_t*)0x20df6020 = 0xe;
  *(uint32_t*)0x20df6024 = 4;
  *(uint32_t*)0x20df6028 = 0x2b8;
  *(uint32_t*)0x20df602c = -1;
  *(uint32_t*)0x20df6030 = 0;
  *(uint32_t*)0x20df6034 = 0;
  *(uint32_t*)0x20df6038 = 0;
  *(uint32_t*)0x20df603c = -1;
  *(uint32_t*)0x20df6040 = -1;
  *(uint32_t*)0x20df6044 = 0;
  *(uint32_t*)0x20df6048 = 0;
  *(uint32_t*)0x20df604c = 0;
  *(uint32_t*)0x20df6050 = -1;
  *(uint32_t*)0x20df6054 = 4;
  *(uint64_t*)0x20df6058 = 0x20006000;
  *(uint8_t*)0x20df6060 = 0;
  *(uint8_t*)0x20df6061 = 0;
  *(uint8_t*)0x20df6062 = 0;
  *(uint8_t*)0x20df6063 = 0;
  *(uint8_t*)0x20df6064 = 0;
  *(uint8_t*)0x20df6065 = 0;
  *(uint8_t*)0x20df6066 = 0;
  *(uint8_t*)0x20df6067 = 0;
  *(uint8_t*)0x20df6068 = 0;
  *(uint8_t*)0x20df6069 = 0;
  *(uint8_t*)0x20df606a = 0;
  *(uint8_t*)0x20df606b = 0;
  *(uint8_t*)0x20df606c = 0;
  *(uint8_t*)0x20df606d = 0;
  *(uint8_t*)0x20df606e = 0;
  *(uint8_t*)0x20df606f = 0;
  *(uint8_t*)0x20df6070 = 0;
  *(uint8_t*)0x20df6071 = 0;
  *(uint8_t*)0x20df6072 = 0;
  *(uint8_t*)0x20df6073 = 0;
  *(uint8_t*)0x20df6074 = 0;
  *(uint8_t*)0x20df6075 = 0;
  *(uint8_t*)0x20df6076 = 0;
  *(uint8_t*)0x20df6077 = 0;
  *(uint8_t*)0x20df6078 = 0;
  *(uint8_t*)0x20df6079 = 0;
  *(uint8_t*)0x20df607a = 0;
  *(uint8_t*)0x20df607b = 0;
  *(uint8_t*)0x20df607c = 0;
  *(uint8_t*)0x20df607d = 0;
  *(uint8_t*)0x20df607e = 0;
  *(uint8_t*)0x20df607f = 0;
  *(uint8_t*)0x20df6080 = 0;
  *(uint8_t*)0x20df6081 = 0;
  *(uint8_t*)0x20df6082 = 0;
  *(uint8_t*)0x20df6083 = 0;
  *(uint8_t*)0x20df6084 = 0;
  *(uint8_t*)0x20df6085 = 0;
  *(uint8_t*)0x20df6086 = 0;
  *(uint8_t*)0x20df6087 = 0;
  *(uint8_t*)0x20df6088 = 0;
  *(uint8_t*)0x20df6089 = 0;
  *(uint8_t*)0x20df608a = 0;
  *(uint8_t*)0x20df608b = 0;
  *(uint8_t*)0x20df608c = 0;
  *(uint8_t*)0x20df608d = 0;
  *(uint8_t*)0x20df608e = 0;
  *(uint8_t*)0x20df608f = 0;
  *(uint8_t*)0x20df6090 = 0;
  *(uint8_t*)0x20df6091 = 0;
  *(uint8_t*)0x20df6092 = 0;
  *(uint8_t*)0x20df6093 = 0;
  *(uint8_t*)0x20df6094 = 0;
  *(uint8_t*)0x20df6095 = 0;
  *(uint8_t*)0x20df6096 = 0;
  *(uint8_t*)0x20df6097 = 0;
  *(uint8_t*)0x20df6098 = 0;
  *(uint8_t*)0x20df6099 = 0;
  *(uint8_t*)0x20df609a = 0;
  *(uint8_t*)0x20df609b = 0;
  *(uint8_t*)0x20df609c = 0;
  *(uint8_t*)0x20df609d = 0;
  *(uint8_t*)0x20df609e = 0;
  *(uint8_t*)0x20df609f = 0;
  *(uint8_t*)0x20df60a0 = 0;
  *(uint8_t*)0x20df60a1 = 0;
  *(uint8_t*)0x20df60a2 = 0;
  *(uint8_t*)0x20df60a3 = 0;
  *(uint8_t*)0x20df60a4 = 0;
  *(uint8_t*)0x20df60a5 = 0;
  *(uint8_t*)0x20df60a6 = 0;
  *(uint8_t*)0x20df60a7 = 0;
  *(uint8_t*)0x20df60a8 = 0;
  *(uint8_t*)0x20df60a9 = 0;
  *(uint8_t*)0x20df60aa = 0;
  *(uint8_t*)0x20df60ab = 0;
  *(uint8_t*)0x20df60ac = 0;
  *(uint8_t*)0x20df60ad = 0;
  *(uint8_t*)0x20df60ae = 0;
  *(uint8_t*)0x20df60af = 0;
  *(uint8_t*)0x20df60b0 = 0;
  *(uint8_t*)0x20df60b1 = 0;
  *(uint8_t*)0x20df60b2 = 0;
  *(uint8_t*)0x20df60b3 = 0;
  *(uint32_t*)0x20df60b4 = 0;
  *(uint16_t*)0x20df60b8 = 0x70;
  *(uint16_t*)0x20df60ba = 0x98;
  *(uint32_t*)0x20df60bc = 0;
  *(uint64_t*)0x20df60c0 = 0;
  *(uint64_t*)0x20df60c8 = 0;
  *(uint16_t*)0x20df60d0 = 0x28;
  memcpy((void*)0x20df60d2, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20df60ef = 0;
  *(uint32_t*)0x20df60f0 = 0xfffffffe;
  *(uint32_t*)0x20df60f8 = htobe32(-1);
  *(uint8_t*)0x20df60fc = 0xac;
  *(uint8_t*)0x20df60fd = 0x14;
  *(uint8_t*)0x20df60fe = 0;
  *(uint8_t*)0x20df60ff = 0xbb;
  *(uint32_t*)0x20df6100 = htobe32(0);
  *(uint32_t*)0x20df6104 = htobe32(0);
  *(uint8_t*)0x20df6108 = 0x73;
  *(uint8_t*)0x20df6109 = 0x79;
  *(uint8_t*)0x20df610a = 0x7a;
  *(uint8_t*)0x20df610b = 0;
  *(uint8_t*)0x20df610c = 0;
  *(uint8_t*)0x20df6118 = 0x73;
  *(uint8_t*)0x20df6119 = 0x79;
  *(uint8_t*)0x20df611a = 0x7a;
  *(uint8_t*)0x20df611b = 0;
  *(uint8_t*)0x20df611c = 0;
  *(uint8_t*)0x20df6128 = 0;
  *(uint8_t*)0x20df6129 = 0;
  *(uint8_t*)0x20df612a = 0;
  *(uint8_t*)0x20df612b = 0;
  *(uint8_t*)0x20df612c = 0;
  *(uint8_t*)0x20df612d = 0;
  *(uint8_t*)0x20df612e = 0;
  *(uint8_t*)0x20df612f = 0;
  *(uint8_t*)0x20df6130 = 0;
  *(uint8_t*)0x20df6131 = 0;
  *(uint8_t*)0x20df6132 = 0;
  *(uint8_t*)0x20df6133 = 0;
  *(uint8_t*)0x20df6134 = 0;
  *(uint8_t*)0x20df6135 = 0;
  *(uint8_t*)0x20df6136 = 0;
  *(uint8_t*)0x20df6137 = 0;
  *(uint8_t*)0x20df6138 = 0;
  *(uint8_t*)0x20df6139 = 0;
  *(uint8_t*)0x20df613a = 0;
  *(uint8_t*)0x20df613b = 0;
  *(uint8_t*)0x20df613c = 0;
  *(uint8_t*)0x20df613d = 0;
  *(uint8_t*)0x20df613e = 0;
  *(uint8_t*)0x20df613f = 0;
  *(uint8_t*)0x20df6140 = 0;
  *(uint8_t*)0x20df6141 = 0;
  *(uint8_t*)0x20df6142 = 0;
  *(uint8_t*)0x20df6143 = 0;
  *(uint8_t*)0x20df6144 = 0;
  *(uint8_t*)0x20df6145 = 0;
  *(uint8_t*)0x20df6146 = 0;
  *(uint8_t*)0x20df6147 = 0;
  *(uint16_t*)0x20df6148 = 0;
  *(uint8_t*)0x20df614a = 0;
  *(uint8_t*)0x20df614b = 0;
  *(uint32_t*)0x20df614c = 0;
  *(uint16_t*)0x20df6150 = 0x70;
  *(uint16_t*)0x20df6152 = 0xb8;
  *(uint32_t*)0x20df6154 = 0;
  *(uint64_t*)0x20df6158 = 0;
  *(uint64_t*)0x20df6160 = 0;
  *(uint16_t*)0x20df6168 = 0x48;
  memcpy((void*)0x20df616a, "\x54\x45\x45\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20df6187 = 1;
  *(uint8_t*)0x20df6188 = -1;
  *(uint8_t*)0x20df6189 = 2;
  *(uint8_t*)0x20df618a = 0;
  *(uint8_t*)0x20df618b = 0;
  *(uint8_t*)0x20df618c = 0;
  *(uint8_t*)0x20df618d = 0;
  *(uint8_t*)0x20df618e = 0;
  *(uint8_t*)0x20df618f = 0;
  *(uint8_t*)0x20df6190 = 0;
  *(uint8_t*)0x20df6191 = 0;
  *(uint8_t*)0x20df6192 = 0;
  *(uint8_t*)0x20df6193 = 0;
  *(uint8_t*)0x20df6194 = 0;
  *(uint8_t*)0x20df6195 = 0;
  *(uint8_t*)0x20df6196 = 0;
  *(uint8_t*)0x20df6197 = 1;
  *(uint8_t*)0x20df6198 = 0x73;
  *(uint8_t*)0x20df6199 = 0x79;
  *(uint8_t*)0x20df619a = 0x7a;
  *(uint8_t*)0x20df619b = 0x30;
  *(uint8_t*)0x20df619c = 0;
  *(uint64_t*)0x20df61a8 = 0;
  *(uint8_t*)0x20df61b0 = 0;
  *(uint8_t*)0x20df61b1 = 0;
  *(uint8_t*)0x20df61b2 = 0;
  *(uint8_t*)0x20df61b3 = 0;
  *(uint8_t*)0x20df61b4 = 0;
  *(uint8_t*)0x20df61b5 = 0;
  *(uint8_t*)0x20df61b6 = 0;
  *(uint8_t*)0x20df61b7 = 0;
  *(uint8_t*)0x20df61b8 = 0;
  *(uint8_t*)0x20df61b9 = 0;
  *(uint8_t*)0x20df61ba = 0;
  *(uint8_t*)0x20df61bb = 0;
  *(uint8_t*)0x20df61bc = 0;
  *(uint8_t*)0x20df61bd = 0;
  *(uint8_t*)0x20df61be = 0;
  *(uint8_t*)0x20df61bf = 0;
  *(uint8_t*)0x20df61c0 = 0;
  *(uint8_t*)0x20df61c1 = 0;
  *(uint8_t*)0x20df61c2 = 0;
  *(uint8_t*)0x20df61c3 = 0;
  *(uint8_t*)0x20df61c4 = 0;
  *(uint8_t*)0x20df61c5 = 0;
  *(uint8_t*)0x20df61c6 = 0;
  *(uint8_t*)0x20df61c7 = 0;
  *(uint8_t*)0x20df61c8 = 0;
  *(uint8_t*)0x20df61c9 = 0;
  *(uint8_t*)0x20df61ca = 0;
  *(uint8_t*)0x20df61cb = 0;
  *(uint8_t*)0x20df61cc = 0;
  *(uint8_t*)0x20df61cd = 0;
  *(uint8_t*)0x20df61ce = 0;
  *(uint8_t*)0x20df61cf = 0;
  *(uint8_t*)0x20df61d0 = 0;
  *(uint8_t*)0x20df61d1 = 0;
  *(uint8_t*)0x20df61d2 = 0;
  *(uint8_t*)0x20df61d3 = 0;
  *(uint8_t*)0x20df61d4 = 0;
  *(uint8_t*)0x20df61d5 = 0;
  *(uint8_t*)0x20df61d6 = 0;
  *(uint8_t*)0x20df61d7 = 0;
  *(uint8_t*)0x20df61d8 = 0;
  *(uint8_t*)0x20df61d9 = 0;
  *(uint8_t*)0x20df61da = 0;
  *(uint8_t*)0x20df61db = 0;
  *(uint8_t*)0x20df61dc = 0;
  *(uint8_t*)0x20df61dd = 0;
  *(uint8_t*)0x20df61de = 0;
  *(uint8_t*)0x20df61df = 0;
  *(uint8_t*)0x20df61e0 = 0;
  *(uint8_t*)0x20df61e1 = 0;
  *(uint8_t*)0x20df61e2 = 0;
  *(uint8_t*)0x20df61e3 = 0;
  *(uint8_t*)0x20df61e4 = 0;
  *(uint8_t*)0x20df61e5 = 0;
  *(uint8_t*)0x20df61e6 = 0;
  *(uint8_t*)0x20df61e7 = 0;
  *(uint8_t*)0x20df61e8 = 0;
  *(uint8_t*)0x20df61e9 = 0;
  *(uint8_t*)0x20df61ea = 0;
  *(uint8_t*)0x20df61eb = 0;
  *(uint8_t*)0x20df61ec = 0;
  *(uint8_t*)0x20df61ed = 0;
  *(uint8_t*)0x20df61ee = 0;
  *(uint8_t*)0x20df61ef = 0;
  *(uint8_t*)0x20df61f0 = 0;
  *(uint8_t*)0x20df61f1 = 0;
  *(uint8_t*)0x20df61f2 = 0;
  *(uint8_t*)0x20df61f3 = 0;
  *(uint8_t*)0x20df61f4 = 0;
  *(uint8_t*)0x20df61f5 = 0;
  *(uint8_t*)0x20df61f6 = 0;
  *(uint8_t*)0x20df61f7 = 0;
  *(uint8_t*)0x20df61f8 = 0;
  *(uint8_t*)0x20df61f9 = 0;
  *(uint8_t*)0x20df61fa = 0;
  *(uint8_t*)0x20df61fb = 0;
  *(uint8_t*)0x20df61fc = 0;
  *(uint8_t*)0x20df61fd = 0;
  *(uint8_t*)0x20df61fe = 0;
  *(uint8_t*)0x20df61ff = 0;
  *(uint8_t*)0x20df6200 = 0;
  *(uint8_t*)0x20df6201 = 0;
  *(uint8_t*)0x20df6202 = 0;
  *(uint8_t*)0x20df6203 = 0;
  *(uint32_t*)0x20df6204 = 0;
  *(uint16_t*)0x20df6208 = 0x70;
  *(uint16_t*)0x20df620a = 0xd0;
  *(uint32_t*)0x20df620c = 0;
  *(uint64_t*)0x20df6210 = 0;
  *(uint64_t*)0x20df6218 = 0;
  *(uint16_t*)0x20df6220 = 0x60;
  memcpy((void*)0x20df6222, "\x53\x45\x54\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20df623f = 0;
  *(uint16_t*)0x20df6240 = 0;
  *(uint32_t*)0x20df6244 = 0;
  *(uint32_t*)0x20df6248 = 0;
  *(uint32_t*)0x20df624c = 0;
  *(uint32_t*)0x20df6250 = 0;
  *(uint32_t*)0x20df6254 = 0;
  *(uint32_t*)0x20df6258 = 0;
  *(uint8_t*)0x20df625c = 0;
  *(uint8_t*)0x20df625d = 0;
  *(uint16_t*)0x20df625e = 0;
  *(uint16_t*)0x20df6260 = 0;
  *(uint32_t*)0x20df6264 = 0;
  *(uint32_t*)0x20df6268 = -1;
  *(uint32_t*)0x20df626c = 0;
  *(uint32_t*)0x20df6270 = 0;
  *(uint32_t*)0x20df6274 = 0;
  *(uint32_t*)0x20df6278 = 0;
  *(uint8_t*)0x20df627c = 0;
  *(uint8_t*)0x20df627d = 0;
  *(uint16_t*)0x20df627e = 0;
  *(uint8_t*)0x20df6280 = 0;
  *(uint8_t*)0x20df6281 = 0;
  *(uint8_t*)0x20df6282 = 0;
  *(uint8_t*)0x20df6283 = 0;
  *(uint8_t*)0x20df6284 = 0;
  *(uint8_t*)0x20df6285 = 0;
  *(uint8_t*)0x20df6286 = 0;
  *(uint8_t*)0x20df6287 = 0;
  *(uint8_t*)0x20df6288 = 0;
  *(uint8_t*)0x20df6289 = 0;
  *(uint8_t*)0x20df628a = 0;
  *(uint8_t*)0x20df628b = 0;
  *(uint8_t*)0x20df628c = 0;
  *(uint8_t*)0x20df628d = 0;
  *(uint8_t*)0x20df628e = 0;
  *(uint8_t*)0x20df628f = 0;
  *(uint8_t*)0x20df6290 = 0;
  *(uint8_t*)0x20df6291 = 0;
  *(uint8_t*)0x20df6292 = 0;
  *(uint8_t*)0x20df6293 = 0;
  *(uint8_t*)0x20df6294 = 0;
  *(uint8_t*)0x20df6295 = 0;
  *(uint8_t*)0x20df6296 = 0;
  *(uint8_t*)0x20df6297 = 0;
  *(uint8_t*)0x20df6298 = 0;
  *(uint8_t*)0x20df6299 = 0;
  *(uint8_t*)0x20df629a = 0;
  *(uint8_t*)0x20df629b = 0;
  *(uint8_t*)0x20df629c = 0;
  *(uint8_t*)0x20df629d = 0;
  *(uint8_t*)0x20df629e = 0;
  *(uint8_t*)0x20df629f = 0;
  *(uint8_t*)0x20df62a0 = 0;
  *(uint8_t*)0x20df62a1 = 0;
  *(uint8_t*)0x20df62a2 = 0;
  *(uint8_t*)0x20df62a3 = 0;
  *(uint8_t*)0x20df62a4 = 0;
  *(uint8_t*)0x20df62a5 = 0;
  *(uint8_t*)0x20df62a6 = 0;
  *(uint8_t*)0x20df62a7 = 0;
  *(uint8_t*)0x20df62a8 = 0;
  *(uint8_t*)0x20df62a9 = 0;
  *(uint8_t*)0x20df62aa = 0;
  *(uint8_t*)0x20df62ab = 0;
  *(uint8_t*)0x20df62ac = 0;
  *(uint8_t*)0x20df62ad = 0;
  *(uint8_t*)0x20df62ae = 0;
  *(uint8_t*)0x20df62af = 0;
  *(uint8_t*)0x20df62b0 = 0;
  *(uint8_t*)0x20df62b1 = 0;
  *(uint8_t*)0x20df62b2 = 0;
  *(uint8_t*)0x20df62b3 = 0;
  *(uint8_t*)0x20df62b4 = 0;
  *(uint8_t*)0x20df62b5 = 0;
  *(uint8_t*)0x20df62b6 = 0;
  *(uint8_t*)0x20df62b7 = 0;
  *(uint8_t*)0x20df62b8 = 0;
  *(uint8_t*)0x20df62b9 = 0;
  *(uint8_t*)0x20df62ba = 0;
  *(uint8_t*)0x20df62bb = 0;
  *(uint8_t*)0x20df62bc = 0;
  *(uint8_t*)0x20df62bd = 0;
  *(uint8_t*)0x20df62be = 0;
  *(uint8_t*)0x20df62bf = 0;
  *(uint8_t*)0x20df62c0 = 0;
  *(uint8_t*)0x20df62c1 = 0;
  *(uint8_t*)0x20df62c2 = 0;
  *(uint8_t*)0x20df62c3 = 0;
  *(uint8_t*)0x20df62c4 = 0;
  *(uint8_t*)0x20df62c5 = 0;
  *(uint8_t*)0x20df62c6 = 0;
  *(uint8_t*)0x20df62c7 = 0;
  *(uint8_t*)0x20df62c8 = 0;
  *(uint8_t*)0x20df62c9 = 0;
  *(uint8_t*)0x20df62ca = 0;
  *(uint8_t*)0x20df62cb = 0;
  *(uint8_t*)0x20df62cc = 0;
  *(uint8_t*)0x20df62cd = 0;
  *(uint8_t*)0x20df62ce = 0;
  *(uint8_t*)0x20df62cf = 0;
  *(uint8_t*)0x20df62d0 = 0;
  *(uint8_t*)0x20df62d1 = 0;
  *(uint8_t*)0x20df62d2 = 0;
  *(uint8_t*)0x20df62d3 = 0;
  *(uint32_t*)0x20df62d4 = 0;
  *(uint16_t*)0x20df62d8 = 0x70;
  *(uint16_t*)0x20df62da = 0x98;
  *(uint32_t*)0x20df62dc = 0;
  *(uint64_t*)0x20df62e0 = 0;
  *(uint64_t*)0x20df62e8 = 0;
  *(uint16_t*)0x20df62f0 = 0x28;
  memcpy((void*)0x20df62f2, "\x52\x45\x4a\x45\x43\x54\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20df630f = 0;
  *(uint32_t*)0x20df6310 = 0;
  *(uint64_t*)0x20006000 = 0;
  *(uint64_t*)0x20006008 = 0;
  *(uint64_t*)0x20006010 = 0;
  *(uint64_t*)0x20006018 = 0;
  *(uint64_t*)0x20006020 = 0;
  *(uint64_t*)0x20006028 = 0;
  *(uint64_t*)0x20006030 = 0;
  *(uint64_t*)0x20006038 = 0;
  syscall(__NR_setsockopt, r[1], 0, 0x40, 0x20df6000, 0x318);
}

int main()
{
  setup_tun(0, true);
  loop();
  return 0;
}