// https://syzkaller.appspot.com/bug?id=e76f08fdb444c36f58b842b46d13f60167665e81
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.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/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/in6.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
#include <linux/veth.h>

static unsigned long long procid;

static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

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;
}

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[4096];
};

static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
                         const void* data, int size)
{
  memset(nlmsg, 0, sizeof(*nlmsg));
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_type = typ;
  hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
  memcpy(hdr + 1, data, size);
  nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}

static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
                         int size)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_len = sizeof(*attr) + size;
  attr->nla_type = typ;
  if (size > 0)
    memcpy(attr + 1, data, size);
  nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}

static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
                            int* reply_len)
{
  if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
    exit(1);
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
  struct sockaddr_nl addr;
  memset(&addr, 0, sizeof(addr));
  addr.nl_family = AF_NETLINK;
  unsigned n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                      (struct sockaddr*)&addr, sizeof(addr));
  if (n != hdr->nlmsg_len)
    exit(1);
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (n < sizeof(struct nlmsghdr))
    exit(1);
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))
    exit(1);
  if (hdr->nlmsg_type != NLMSG_ERROR)
    exit(1);
  return ((struct nlmsgerr*)(hdr + 1))->error;
}

static int netlink_send(struct nlmsg* nlmsg, int sock)
{
  return netlink_send_ext(nlmsg, sock, 0, NULL);
}

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                                         NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

static struct nlmsg nlmsg;

#define WIFI_INITIAL_DEVICE_COUNT 2
#define WIFI_MAC_BASE                                                          \
  {                                                                            \
    0x08, 0x02, 0x11, 0x00, 0x00, 0x00                                         \
  }
#define WIFI_IBSS_BSSID                                                        \
  {                                                                            \
    0x50, 0x50, 0x50, 0x50, 0x50, 0x50                                         \
  }
#define WIFI_IBSS_SSID                                                         \
  {                                                                            \
    0x10, 0x10, 0x10, 0x10, 0x10, 0x10                                         \
  }
#define WIFI_DEFAULT_FREQUENCY 2412
#define WIFI_DEFAULT_SIGNAL 0
#define WIFI_DEFAULT_RX_RATE 1
#define HWSIM_CMD_REGISTER 1
#define HWSIM_CMD_FRAME 2
#define HWSIM_CMD_NEW_RADIO 4
#define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14
#define HWSIM_ATTR_PERM_ADDR 22

#define IF_OPER_UP 6
struct join_ibss_props {
  int wiphy_freq;
  bool wiphy_freq_fixed;
  uint8_t* mac;
  uint8_t* ssid;
  int ssid_len;
};

static int set_interface_state(const char* interface_name, int on)
{
  struct ifreq ifr;
  int sock = socket(AF_INET, SOCK_DGRAM, 0);
  if (sock < 0) {
    return -1;
  }
  memset(&ifr, 0, sizeof(ifr));
  strcpy(ifr.ifr_name, interface_name);
  int ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
  if (ret < 0) {
    close(sock);
    return -1;
  }
  if (on)
    ifr.ifr_flags |= IFF_UP;
  else
    ifr.ifr_flags &= ~IFF_UP;
  ret = ioctl(sock, SIOCSIFFLAGS, &ifr);
  close(sock);
  if (ret < 0) {
    return -1;
  }
  return 0;
}

static int nl80211_set_interface(struct nlmsg* nlmsg, int sock,
                                 int nl80211_family, uint32_t ifindex,
                                 uint32_t iftype)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = NL80211_CMD_SET_INTERFACE;
  netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
  netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
    return -1;
  }
  return 0;
}

static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family,
                             uint32_t ifindex, struct join_ibss_props* props)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = NL80211_CMD_JOIN_IBSS;
  netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
  netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len);
  netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq),
               sizeof(props->wiphy_freq));
  if (props->mac)
    netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN);
  if (props->wiphy_freq_fixed)
    netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
    return -1;
  }
  return 0;
}

static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex)
{
  struct ifinfomsg info;
  memset(&info, 0, sizeof(info));
  info.ifi_family = AF_UNSPEC;
  info.ifi_index = ifindex;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1) {
    return -1;
  }
  netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info));
  int n;
  int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n);
  close(sock);
  if (err) {
    return -1;
  }
  struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf));
  for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) {
    if (attr->rta_type == IFLA_OPERSTATE)
      return *((int32_t*)RTA_DATA(attr));
  }
  return -1;
}

static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface,
                                int operstate)
{
  int ifindex = if_nametoindex(interface);
  while (true) {
    usleep(1000);
    int ret = get_ifla_operstate(nlmsg, ifindex);
    if (ret < 0)
      return ret;
    if (ret == operstate)
      return 0;
  }
  return 0;
}

static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock,
                                        int nl80211_family_id, char* interface,
                                        struct join_ibss_props* ibss_props)
{
  int ifindex = if_nametoindex(interface);
  if (ifindex == 0) {
    return -1;
  }
  int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex,
                                  NL80211_IFTYPE_ADHOC);
  if (ret < 0) {
    return -1;
  }
  ret = set_interface_state(interface, 1);
  if (ret < 0) {
    return -1;
  }
  ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props);
  if (ret < 0) {
    return -1;
  }
  return 0;
}

static int hwsim80211_create_device(struct nlmsg* nlmsg, int sock,
                                    int hwsim_family,
                                    uint8_t mac_addr[ETH_ALEN])
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = HWSIM_CMD_NEW_RADIO;
  netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, HWSIM_ATTR_SUPPORT_P2P_DEVICE, NULL, 0);
  netlink_attr(nlmsg, HWSIM_ATTR_PERM_ADDR, mac_addr, ETH_ALEN);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
    return -1;
  }
  return 0;
}

static void initialize_wifi_devices(void)
{
  uint8_t mac_addr[6] = WIFI_MAC_BASE;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock < 0) {
    return;
  }
  int hwsim_family_id = netlink_query_family_id(&nlmsg, sock, "MAC80211_HWSIM");
  int nl80211_family_id = netlink_query_family_id(&nlmsg, sock, "nl80211");
  uint8_t ssid[] = WIFI_IBSS_SSID;
  uint8_t bssid[] = WIFI_IBSS_BSSID;
  struct join_ibss_props ibss_props = {.wiphy_freq = WIFI_DEFAULT_FREQUENCY,
                                       .wiphy_freq_fixed = true,
                                       .mac = bssid,
                                       .ssid = ssid,
                                       .ssid_len = sizeof(ssid)};
  for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
    mac_addr[5] = device_id;
    int ret = hwsim80211_create_device(&nlmsg, sock, hwsim_family_id, mac_addr);
    if (ret < 0)
      exit(1);
    char interface[6] = "wlan0";
    interface[4] += device_id;
    if (nl80211_setup_ibss_interface(&nlmsg, sock, nl80211_family_id, interface,
                                     &ibss_props) < 0)
      exit(1);
  }
  for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
    char interface[6] = "wlan0";
    interface[4] += device_id;
    int ret = await_ifla_operstate(&nlmsg, interface, IF_OPER_UP);
    if (ret < 0)
      exit(1);
  }
  close(sock);
}

#define MAX_FDS 30

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

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 = 0;
  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();
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  initialize_wifi_devices();
  loop();
  exit(1);
}

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 setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

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

static void setup_binfmt_misc()
{
  if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) {
  }
  write_file("/proc/sys/fs/binfmt_misc/register", ":syz0:M:0:\x01::./file0:");
  write_file("/proc/sys/fs/binfmt_misc/register",
             ":syz1:M:1:\x02::./file0:POC");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      close_fds();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000) {
        continue;
      }
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[6] = {0xffffffffffffffff, 0x0, 0xffffffffffffffff,
                 0xffffffffffffffff, 0x0, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(__NR_socket, 0x11ul, 0x800000003ul, 0);
  if (res != -1)
    r[0] = res;
  NONFAILING(*(uint16_t*)0x20000080 = 0x11);
  NONFAILING(memcpy((void*)0x20000082,
                    "\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x44\x94\x4e\xeb"
                    "\xa7\x1a\x49\x76\xe2\x52\x92\x2c\xb1\x8f\x6e\x2e\x2a\xba"
                    "\x00\x00\x00\x01\x2e\x0b\x38\x36\x00\x54\x04\xb0\xe0\x30"
                    "\x1a\x4c\xe8\x75\xf2\xe3\xff\x5f\x16\x3e\xe3\x40\xb7\x67"
                    "\x95\x00\x80\x00\x00\x00\x00\x00\x00\x01\x01\x01\x3c\x58"
                    "\x11\x03\x9e\x15\x77\x50\x27\xec\xce\x66\xfd\x79\x2b\xbf"
                    "\x0e\x5b\xf5\xff\x1b\x08\x16\xf3\xf6\xdb\x1c\x00\x01\x00"
                    "\x00\x00\x00\x00\x00\x00\x49\x74\x00\x00\x00\x00\x00\x00"
                    "\x00\x06\xad\x8e\x5e\xcc\x32\x6d\x3a\x09\xff\xc2\xc6\x54",
                    126));
  syscall(__NR_bind, r[0], 0x20000080ul, 0x80ul);
  NONFAILING(*(uint32_t*)0x20000000 = 0x14);
  res = syscall(__NR_getsockname, r[0], 0x200003c0ul, 0x20000000ul);
  if (res != -1)
    NONFAILING(r[1] = *(uint32_t*)0x200003c4);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0);
  if (res != -1)
    r[2] = res;
  NONFAILING(*(uint64_t*)0x200007c0 = 0);
  NONFAILING(*(uint32_t*)0x200007c8 = 0);
  NONFAILING(*(uint64_t*)0x200007d0 = 0x20000780);
  NONFAILING(*(uint64_t*)0x20000780 = 0x20000400);
  NONFAILING(*(uint32_t*)0x20000400 = 0x148);
  NONFAILING(*(uint16_t*)0x20000404 = 0x24);
  NONFAILING(*(uint16_t*)0x20000406 = 0xd0b);
  NONFAILING(*(uint32_t*)0x20000408 = 0);
  NONFAILING(*(uint32_t*)0x2000040c = 0);
  NONFAILING(*(uint8_t*)0x20000410 = 0);
  NONFAILING(*(uint8_t*)0x20000411 = 0);
  NONFAILING(*(uint16_t*)0x20000412 = 0);
  NONFAILING(*(uint32_t*)0x20000414 = r[1]);
  NONFAILING(*(uint16_t*)0x20000418 = 0);
  NONFAILING(*(uint16_t*)0x2000041a = 0);
  NONFAILING(*(uint16_t*)0x2000041c = 0xd);
  NONFAILING(*(uint16_t*)0x2000041e = -1);
  NONFAILING(*(uint16_t*)0x20000420 = 0);
  NONFAILING(*(uint16_t*)0x20000422 = 0);
  NONFAILING(*(uint16_t*)0x20000424 = 8);
  NONFAILING(*(uint16_t*)0x20000426 = 1);
  NONFAILING(memcpy((void*)0x20000428, "red\000", 4));
  NONFAILING(*(uint16_t*)0x2000042c = 0x11c);
  NONFAILING(*(uint16_t*)0x2000042e = 2);
  NONFAILING(*(uint16_t*)0x20000430 = 0x104);
  NONFAILING(*(uint16_t*)0x20000432 = 2);
  NONFAILING(memcpy(
      (void*)0x20000434,
      "\x35\x3f\x9a\x6f\x83\xc1\xa3\x02\xf1\x8d\xb2\x58\x79\x23\x67\x6d\x91\x43"
      "\x3e\xb3\x09\xeb\x52\xb0\x48\x43\x70\x1d\xb4\xb5\x49\xd6\xff\xd9\x28\xa5"
      "\xc2\x42\xde\xf4\x5b\xd4\xd2\x35\xc7\xc9\x39\xe8\xcd\xbe\x71\xdd\x13\x22"
      "\x51\xf5\x94\xd6\xef\x5f\x06\x81\x08\x38\x8a\x74\x40\x0b\x47\xf8\xdb\xfa"
      "\x55\x08\xc3\x1c\x4f\x39\xd6\x26\xef\xe6\x02\x37\x0f\x32\x3c\xcc\xbd\x6c"
      "\x5f\x63\x33\xe4\x4c\xf6\xe5\x5c\x9f\xa1\x30\x46\xc4\xd8\x04\xd1\x4a\x1b"
      "\x86\x18\xd5\xb1\xb6\x4c\xa0\xc7\x73\xd0\xb4\x96\x87\xcd\x51\xb8\xf4\x3c"
      "\x4d\xb2\xbb\x0a\xbc\xb3\xe5\x4e\x4d\x06\xf4\x9c\x18\xe3\xf0\xc5\xa1\x17"
      "\x4d\x60\x90\x27\x65\x5a\x08\x2d\x68\xf6\x7e\xc3\x8b\xf4\x93\x87\xe0\x6a"
      "\xfd\xe1\xcd\xf3\xc5\xec\x87\xfb\x53\xde\x13\x08\x87\x06\x22\xd3\x29\x0e"
      "\x4e\x92\xc4\x8a\xa0\x5b\xaf\x6c\x12\x3f\x3b\x57\x86\xe4\x4e\x63\x8b\x5e"
      "\xc6\xb9\x72\xb9\x32\x59\x3b\xf5\x93\x98\x20\xdc\xdb\xbd\x7b\xf6\xfc\xdf"
      "\x31\xd2\x75\x9f\x09\xe7\x79\xdd\xbb\x1a\xc7\xf1\x6d\x64\xd6\xff\x7d\xd2"
      "\xb7\x0b\x80\x3d\x9a\xd7\x46\x41\xb2\x32\x4b\x88\x25\xbd\x3f\x4a\x9e\x53"
      "\x1c\xa8\xc4\x47",
      256));
  NONFAILING(*(uint16_t*)0x20000534 = 0x14);
  NONFAILING(*(uint16_t*)0x20000536 = 1);
  NONFAILING(*(uint32_t*)0x20000538 = 0x1000);
  NONFAILING(*(uint32_t*)0x2000053c = 0);
  NONFAILING(*(uint32_t*)0x20000540 = 0);
  NONFAILING(*(uint8_t*)0x20000544 = 0);
  NONFAILING(*(uint8_t*)0x20000545 = 0);
  NONFAILING(*(uint8_t*)0x20000546 = 0);
  NONFAILING(*(uint8_t*)0x20000547 = 6);
  NONFAILING(*(uint64_t*)0x20000788 = 0x148);
  NONFAILING(*(uint64_t*)0x200007d8 = 1);
  NONFAILING(*(uint64_t*)0x200007e0 = 0);
  NONFAILING(*(uint64_t*)0x200007e8 = 0);
  NONFAILING(*(uint32_t*)0x200007f0 = 0x8040);
  syscall(__NR_sendmsg, r[2], 0x200007c0ul, 0ul);
  res = syscall(__NR_socket, 0x11ul, 0x800000003ul, 0);
  if (res != -1)
    r[3] = res;
  NONFAILING(*(uint16_t*)0x20000080 = 0x11);
  NONFAILING(memcpy((void*)0x20000082,
                    "\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x44\x94\x4e\xeb"
                    "\xa7\x1a\x49\x76\xe2\x52\x92\x2c\xb1\x8f\x6e\x2e\x2a\xba"
                    "\x00\x00\x00\x01\x2e\x0b\x38\x36\x00\x54\x04\xb0\xe0\x30"
                    "\x1a\x4c\xe8\x75\xf2\xe3\xff\x5f\x16\x3e\xe3\x40\xb7\x67"
                    "\x95\x00\x80\x00\x00\x00\x00\x00\x00\x01\x01\x01\x3c\x58"
                    "\x11\x03\x9e\x15\x77\x50\x27\xec\xce\x66\xfd\x79\x2b\xbf"
                    "\x0e\x5b\xf5\xff\x1b\x08\x16\xf3\xf6\xdb\x1c\x00\x01\x00"
                    "\x00\x00\x00\x00\x00\x00\x49\x74\x00\x00\x00\x00\x00\x00"
                    "\x00\x06\xad\x8e\x5e\xcc\x32\x6d\x3a\x09\xff\xc2\xc6\x54",
                    126));
  syscall(__NR_bind, r[3], 0x20000080ul, 0x80ul);
  NONFAILING(*(uint32_t*)0x20000000 = 0x14);
  res = syscall(__NR_getsockname, r[3], 0x200003c0ul, 0x20000000ul);
  if (res != -1)
    NONFAILING(r[4] = *(uint32_t*)0x200003c4);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0);
  if (res != -1)
    r[5] = res;
  NONFAILING(*(uint64_t*)0x200007c0 = 0);
  NONFAILING(*(uint32_t*)0x200007c8 = 0);
  NONFAILING(*(uint64_t*)0x200007d0 = 0x20000780);
  NONFAILING(*(uint64_t*)0x20000780 = 0x20000400);
  NONFAILING(*(uint32_t*)0x20000400 = 0x148);
  NONFAILING(*(uint16_t*)0x20000404 = 0x24);
  NONFAILING(*(uint16_t*)0x20000406 = 0xd0b);
  NONFAILING(*(uint32_t*)0x20000408 = 0);
  NONFAILING(*(uint32_t*)0x2000040c = 0);
  NONFAILING(*(uint8_t*)0x20000410 = 0);
  NONFAILING(*(uint8_t*)0x20000411 = 0);
  NONFAILING(*(uint16_t*)0x20000412 = 0);
  NONFAILING(*(uint32_t*)0x20000414 = r[4]);
  NONFAILING(*(uint16_t*)0x20000418 = 0);
  NONFAILING(*(uint16_t*)0x2000041a = 0);
  NONFAILING(*(uint16_t*)0x2000041c = 0xfff1);
  NONFAILING(*(uint16_t*)0x2000041e = -1);
  NONFAILING(*(uint16_t*)0x20000420 = 0);
  NONFAILING(*(uint16_t*)0x20000422 = 0);
  NONFAILING(*(uint16_t*)0x20000424 = 8);
  NONFAILING(*(uint16_t*)0x20000426 = 1);
  NONFAILING(memcpy((void*)0x20000428, "red\000", 4));
  NONFAILING(*(uint16_t*)0x2000042c = 0x11c);
  NONFAILING(*(uint16_t*)0x2000042e = 2);
  NONFAILING(*(uint16_t*)0x20000430 = 0x104);
  NONFAILING(*(uint16_t*)0x20000432 = 2);
  NONFAILING(memcpy(
      (void*)0x20000434,
      "\x35\x3f\x9a\x6f\x83\xc1\xa3\x02\xf1\x8d\xb2\x58\x79\x23\x67\x6d\x91\x43"
      "\x3e\xb3\x09\xeb\x52\xb0\x48\x43\x70\x1d\xb4\xb5\x49\xd6\xff\xd9\x28\xa5"
      "\xc2\x42\xde\xf4\x5b\xd4\xd2\x35\xc7\xc9\x39\xe8\xcd\xbe\x71\xdd\x13\x22"
      "\x51\xf5\x94\xd6\xef\x5f\x06\x81\x08\x38\x8a\x74\x40\x0b\x47\xf8\xdb\xfa"
      "\x55\x08\xc3\x1c\x4f\x39\xd6\x26\xef\xe6\x02\x37\x0f\x32\x3c\xcc\xbd\x6c"
      "\x5f\x63\x33\xe4\x4c\xf6\xe5\x5c\x9f\xa1\x30\x46\xc4\xd8\x04\xd1\x4a\x1b"
      "\x86\x18\xd5\xb1\xb6\x4c\xa0\xc7\x73\xd0\xb4\x96\x87\xcd\x51\xb8\xf4\x3c"
      "\x4d\xb2\xbb\x0a\xbc\xb3\xe5\x4e\x4d\x06\xf4\x9c\x18\xe3\xf0\xc5\xa1\x17"
      "\x4d\x60\x90\x27\x65\x5a\x08\x2d\x68\xf6\x7e\xc3\x8b\xf4\x93\x87\xe0\x6a"
      "\xfd\xe1\xcd\xf3\xc5\xec\x87\xfb\x53\xde\x13\x08\x87\x06\x22\xd3\x29\x0e"
      "\x4e\x92\xc4\x8a\xa0\x5b\xaf\x6c\x12\x3f\x3b\x57\x86\xe4\x4e\x63\x8b\x5e"
      "\xc6\xb9\x72\xb9\x32\x59\x3b\xf5\x93\x98\x20\xdc\xdb\xbd\x7b\xf6\xfc\xdf"
      "\x31\xd2\x75\x9f\x09\xe7\x79\xdd\xbb\x1a\xc7\xf1\x6d\x64\xd6\xff\x7d\xd2"
      "\xb7\x0b\x80\x3d\x9a\xd7\x46\x41\xb2\x32\x4b\x88\x25\xbd\x3f\x4a\x9e\x53"
      "\x1c\xa8\xc4\x47",
      256));
  NONFAILING(*(uint16_t*)0x20000534 = 0x14);
  NONFAILING(*(uint16_t*)0x20000536 = 1);
  NONFAILING(*(uint32_t*)0x20000538 = 0x1000);
  NONFAILING(*(uint32_t*)0x2000053c = 0);
  NONFAILING(*(uint32_t*)0x20000540 = 0);
  NONFAILING(*(uint8_t*)0x20000544 = 0);
  NONFAILING(*(uint8_t*)0x20000545 = 0);
  NONFAILING(*(uint8_t*)0x20000546 = 0);
  NONFAILING(*(uint8_t*)0x20000547 = 6);
  NONFAILING(*(uint64_t*)0x20000788 = 0x148);
  NONFAILING(*(uint64_t*)0x200007d8 = 1);
  NONFAILING(*(uint64_t*)0x200007e0 = 0);
  NONFAILING(*(uint64_t*)0x200007e8 = 0);
  NONFAILING(*(uint32_t*)0x200007f0 = 0x8040);
  syscall(__NR_sendmsg, r[5], 0x200007c0ul, 0ul);
  syscall(__NR_clone, 0x70224100ul, 0ul, 0ul, 0ul, 0ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  setup_binfmt_misc();
  install_segv_handler();
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}