// https://syzkaller.appspot.com/bug?id=96a4feb01cb9f64ffc2bce699556000b8a1d1495
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <sched.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/sysmacros.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/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/veth.h>

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, bool dofail)
{
  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;
  ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                     (struct sockaddr*)&addr, sizeof(addr));
  if (n != (ssize_t)hdr->nlmsg_len) {
    if (dofail)
      exit(1);
    return -1;
  }
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (n < 0) {
    if (dofail)
      exit(1);
    return -1;
  }
  if (n < (ssize_t)sizeof(struct nlmsghdr)) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type != NLMSG_ERROR) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  errno = -((struct nlmsgerr*)(hdr + 1))->error;
  return -errno;
}

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

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  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, dofail);
  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) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

static void netlink_device_change(struct nlmsg* nlmsg, int sock,
                                  const char* name, bool up, const char* master,
                                  const void* mac, int macsize,
                                  const char* new_name)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  hdr.ifi_index = if_nametoindex(name);
  netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
  if (new_name)
    netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
  if (master) {
    int ifindex = if_nametoindex(master);
    netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
  }
  if (macsize)
    netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
                            const void* addr, int addrsize)
{
  struct ifaddrmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
  hdr.ifa_scope = RT_SCOPE_UNIVERSE;
  hdr.ifa_index = if_nametoindex(dev);
  netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
  netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
  return netlink_send(nlmsg, sock);
}

static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in_addr in_addr;
  inet_pton(AF_INET, addr, &in_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
  if (err < 0) {
  }
}

static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, addr, &in6_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
  if (err < 0) {
  }
}

static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
                              const void* addr, int addrsize, const void* mac,
                              int macsize)
{
  struct ndmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ndm_ifindex = if_nametoindex(name);
  hdr.ndm_state = NUD_PERMANENT;
  netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, NDA_DST, addr, addrsize);
  netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static struct nlmsg nlmsg;

static int tunfd = -1;

#define TUN_IFACE "syz_tun"
#define LOCAL_MAC 0xaaaaaaaaaaaa
#define REMOTE_MAC 0xaaaaaaaaaabb
#define LOCAL_IPV4 "172.20.20.170"
#define REMOTE_IPV4 "172.20.20.187"
#define LOCAL_IPV6 "fe80::aa"
#define REMOTE_IPV6 "fe80::bb"

#define IFF_NAPI 0x0010
static void correct_dev_net_tun(void)
{
  struct stat st;
  if (stat("/dev/net/tun", &st) == 0) {
    if (S_ISCHR(st.st_mode) && major(st.st_rdev) == 10 &&
        minor(st.st_rdev) == 200)
      return;
    if (unlink("/dev/net/tun")) {
    }
  }
  if (mkdir("/dev/net", 0755) && errno != EEXIST) {
  }
  if (mknod("/dev/net/tun", S_IFCHR | 0666, makedev(10, 200))) {
  }
  if (chmod("/dev/net/tun", 0666)) {
  }
}

static void initialize_tun(void)
{
  correct_dev_net_tun();
  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;
  }
  const int kTunFd = 200;
  if (dup2(tunfd, kTunFd) < 0)
    exit(1);
  close(tunfd);
  tunfd = kTunFd;
  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    exit(1);
  }
  char sysctl[64];
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE);
  write_file(sysctl, "0");
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE);
  write_file(sysctl, "0");
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4);
  netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6);
  uint64_t macaddr = REMOTE_MAC;
  struct in_addr in_addr;
  inet_pton(AF_INET, REMOTE_IPV4, &in_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr),
                    &macaddr, ETH_ALEN);
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr),
                    &macaddr, ETH_ALEN);
  macaddr = LOCAL_MAC;
  netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN,
                        NULL);
  close(sock);
}

static long syz_emit_ethernet(volatile long a0, volatile long a1,
                              volatile long a2)
{
  if (tunfd < 0)
    return (uintptr_t)-1;
  uint32_t length = a0;
  char* data = (char*)a1;
  return write(tunfd, data, length);
}

static void setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/newroot/syz-inputs", 0700))
    exit(1);
  if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL,
            bind_mount_flags | MS_RDONLY, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  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);
  if (getppid() == 1)
    exit(1);
  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);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_tun();
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void loop(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  socket$inet6 arguments: [
  //    domain: const = 0xa (8 bytes)
  //    type: socket_type = 0x3 (8 bytes)
  //    proto: int32 = 0xff (4 bytes)
  //  ]
  //  returns sock_in6
  res = syscall(__NR_socket, /*domain=*/0xaul, /*type=SOCK_RAW*/ 3ul,
                /*proto=*/0xff);
  if (res != -1)
    r[0] = res;
  //  socket$nl_netfilter arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0xc (4 bytes)
  //  ]
  //  returns sock_nl_netfilter
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0xc);
  if (res != -1)
    r[1] = res;
  //  socket arguments: [
  //    domain: socket_domain = 0x10 (8 bytes)
  //    type: socket_type = 0x3 (8 bytes)
  //    proto: int32 = 0x0 (4 bytes)
  //  ]
  //  returns sock
  res = syscall(__NR_socket, /*domain=AF_NETLINK*/ 0x10ul,
                /*type=SOCK_RAW*/ 3ul, /*proto=*/0);
  if (res != -1)
    r[2] = res;
  //  setsockopt$netlink_NETLINK_TX_RING arguments: [
  //    fd: sock_netlink (resource)
  //    level: const = 0x10e (4 bytes)
  //    opt: const = 0xc (4 bytes)
  //    arg: ptr[in, nl_mmap_req] {
  //      nl_mmap_req {
  //        bsize: int32 = 0x9 (4 bytes)
  //        bnumber: int32 = 0x0 (4 bytes)
  //        fsize: int32 = 0x0 (4 bytes)
  //        fnumber: int32 = 0x0 (4 bytes)
  //      }
  //    }
  //    arglen: len = 0x10 (8 bytes)
  //  ]
  *(uint32_t*)0x2000000000c0 = 9;
  *(uint32_t*)0x2000000000c4 = 0;
  *(uint32_t*)0x2000000000c8 = 0;
  *(uint32_t*)0x2000000000cc = 0;
  syscall(__NR_setsockopt, /*fd=*/r[2], /*level=*/0x10e, /*opt=*/0xc,
          /*arg=*/0x2000000000c0ul, /*arglen=*/0x10ul);
  //  sendmsg$nl_route_sched arguments: [
  //    fd: sock_nl_route (resource)
  //    msg: nil
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  syscall(__NR_sendmsg, /*fd=*/r[2], /*msg=*/0ul, /*f=*/0ul);
  //  sendmsg$IPCTNL_MSG_EXP_GET arguments: [
  //    fd: sock_nl_netfilter (resource)
  //    msg: ptr[in,
  //    msghdr_netlink[netlink_msg_netfilter_t[NFNL_SUBSYS_CTNETLINK_EXP,
  //    IPCTNL_MSG_EXP_GET, exp_nla_policy]]] {
  //      msghdr_netlink[netlink_msg_netfilter_t[NFNL_SUBSYS_CTNETLINK_EXP,
  //      IPCTNL_MSG_EXP_GET, exp_nla_policy]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: nil
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x8000 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000a80 = 0;
  *(uint32_t*)0x200000000a88 = 0;
  *(uint64_t*)0x200000000a90 = 0;
  *(uint64_t*)0x200000000a98 = 1;
  *(uint64_t*)0x200000000aa0 = 0;
  *(uint64_t*)0x200000000aa8 = 0;
  *(uint32_t*)0x200000000ab0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x200000000a80ul,
          /*f=MSG_MORE*/ 0x8000ul);
  //  socket$netlink arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: netlink_proto = 0x5 (4 bytes)
  //  ]
  //  returns sock_netlink
  syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul,
          /*proto=NETLINK_NFLOG*/ 5);
  //  sendmsg$sock arguments: [
  //    fd: sock (resource)
  //    msg: ptr[in, msghdr_sock] {
  //      msghdr_sock {
  //        msg_name: ptr[in, sockaddr_storage] {
  //          union sockaddr_storage {
  //            phonet: sockaddr_pn {
  //              spn_family: const = 0x23 (2 bytes)
  //              spn_obj: int8 = 0xf (1 bytes)
  //              spn_dev: int8 = 0x7f (1 bytes)
  //              spn_resource: int8 = 0x8 (1 bytes)
  //              spn_zero: buffer: {00 00 00 00 00 00 00 00 00 00 00} (length
  //              0xb)
  //            }
  //          }
  //        }
  //        msg_namelen: len = 0x80 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        msg_iov: ptr[in, array[iovec[in, array[int8]]]] {
  //          array[iovec[in, array[int8]]] {
  //            iovec[in, array[int8]] {
  //              addr: ptr[in, buffer] {
  //                buffer: {07 5c bd bb 13 ae 06 a7 87 a8 c6 2c 22 73 e1 1a 73
  //                34 15 5d 52 84 1d 6d 00 7c 6b 3e 9b 85 68 2e 9d e6 96 c5 5a
  //                9c ba 78 02 f3 33 dd 2f 69 85 21 03 b7 4f 85 02 1f 61 81 16
  //                b3 97 10 ad e6 0d 85 92 8f 19 7f 2f 6e 8a 41 a1 3a c0 19 d4
  //                e0 e0 66 b2 1a 05 11 bf f0 b3 67 a1 6e 0b a6 5d 09 3d ba 56
  //                92 2f 5e b6 ef 6e 13 bb 4c 75 81 cd 86 d8 5a da f1 13 aa 7b
  //                c3 89 c1 2a f8 22 a6 17 64 4e d7 c1 db 21 22 85 40 76 58 2c
  //                c7 83 1c fe 1a ca 9a c7 63 4d 33 a5 5f d9 a2 d8 5b 4e 25 b9
  //                cb 26 20 dc e9 ea 4c 25 d5 68 4e 27 08 54 d9 61 25 4e e9 6f
  //                84 72 1b 23 d7 1a 25 44 92 1a 48 3c 9f 6a d9 63 50 54 00 45
  //                fb c3 37 9f 14 15 38 94 ac 46 8f 68 b2 09 ee fb c2 10 28 16
  //                48 db d7 70 17 63 db ec ed 43 b4 9d ad a4 1b b4 b1 df 13 86
  //                f2 20 99 ee 15 52 34 ed cc 6c f8 2e 46} (length 0xfa)
  //              }
  //              len: len = 0xfa (8 bytes)
  //            }
  //            iovec[in, array[int8]] {
  //              addr: nil
  //              len: len = 0x0 (8 bytes)
  //            }
  //            iovec[in, array[int8]] {
  //              addr: ptr[in, buffer] {
  //                buffer: {17 b3 ee 12 92 9d a2 f4 66 a5 8b 03 fb dd 6b f5 53
  //                cd af 1b bc 8d 12 cb 55 ba 06 f5 9e 6e 6c d2 32 81} (length
  //                0x22)
  //              }
  //              len: len = 0x22 (8 bytes)
  //            }
  //          }
  //        }
  //        msg_iovlen: len = 0x3 (8 bytes)
  //        msg_control: nil
  //        msg_controllen: bytesize = 0x0 (8 bytes)
  //        msg_flags: const = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000002d00 = 0x200000000080;
  *(uint16_t*)0x200000000080 = 0x23;
  *(uint8_t*)0x200000000082 = 0xf;
  *(uint8_t*)0x200000000083 = 0x7f;
  *(uint8_t*)0x200000000084 = 8;
  memset((void*)0x200000000085, 0, 11);
  *(uint32_t*)0x200000002d08 = 0x80;
  *(uint64_t*)0x200000002d10 = 0x200000002cc0;
  *(uint64_t*)0x200000002cc0 = 0x200000000540;
  memcpy(
      (void*)0x200000000540,
      "\x07\x5c\xbd\xbb\x13\xae\x06\xa7\x87\xa8\xc6\x2c\x22\x73\xe1\x1a\x73\x34"
      "\x15\x5d\x52\x84\x1d\x6d\x00\x7c\x6b\x3e\x9b\x85\x68\x2e\x9d\xe6\x96\xc5"
      "\x5a\x9c\xba\x78\x02\xf3\x33\xdd\x2f\x69\x85\x21\x03\xb7\x4f\x85\x02\x1f"
      "\x61\x81\x16\xb3\x97\x10\xad\xe6\x0d\x85\x92\x8f\x19\x7f\x2f\x6e\x8a\x41"
      "\xa1\x3a\xc0\x19\xd4\xe0\xe0\x66\xb2\x1a\x05\x11\xbf\xf0\xb3\x67\xa1\x6e"
      "\x0b\xa6\x5d\x09\x3d\xba\x56\x92\x2f\x5e\xb6\xef\x6e\x13\xbb\x4c\x75\x81"
      "\xcd\x86\xd8\x5a\xda\xf1\x13\xaa\x7b\xc3\x89\xc1\x2a\xf8\x22\xa6\x17\x64"
      "\x4e\xd7\xc1\xdb\x21\x22\x85\x40\x76\x58\x2c\xc7\x83\x1c\xfe\x1a\xca\x9a"
      "\xc7\x63\x4d\x33\xa5\x5f\xd9\xa2\xd8\x5b\x4e\x25\xb9\xcb\x26\x20\xdc\xe9"
      "\xea\x4c\x25\xd5\x68\x4e\x27\x08\x54\xd9\x61\x25\x4e\xe9\x6f\x84\x72\x1b"
      "\x23\xd7\x1a\x25\x44\x92\x1a\x48\x3c\x9f\x6a\xd9\x63\x50\x54\x00\x45\xfb"
      "\xc3\x37\x9f\x14\x15\x38\x94\xac\x46\x8f\x68\xb2\x09\xee\xfb\xc2\x10\x28"
      "\x16\x48\xdb\xd7\x70\x17\x63\xdb\xec\xed\x43\xb4\x9d\xad\xa4\x1b\xb4\xb1"
      "\xdf\x13\x86\xf2\x20\x99\xee\x15\x52\x34\xed\xcc\x6c\xf8\x2e\x46",
      250);
  *(uint64_t*)0x200000002cc8 = 0xfa;
  *(uint64_t*)0x200000002cd0 = 0;
  *(uint64_t*)0x200000002cd8 = 0;
  *(uint64_t*)0x200000002ce0 = 0x200000002c80;
  memcpy((void*)0x200000002c80,
         "\x17\xb3\xee\x12\x92\x9d\xa2\xf4\x66\xa5\x8b\x03\xfb\xdd\x6b\xf5\x53"
         "\xcd\xaf\x1b\xbc\x8d\x12\xcb\x55\xba\x06\xf5\x9e\x6e\x6c\xd2\x32\x81",
         34);
  *(uint64_t*)0x200000002ce8 = 0x22;
  *(uint64_t*)0x200000002d18 = 3;
  *(uint64_t*)0x200000002d20 = 0;
  *(uint64_t*)0x200000002d28 = 0;
  *(uint32_t*)0x200000002d30 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x200000002d00ul, /*f=*/0ul);
  //  setsockopt$IP6T_SO_SET_REPLACE arguments: [
  //    fd: sock_in6 (resource)
  //    level: const = 0x29 (4 bytes)
  //    opt: const = 0x40 (4 bytes)
  //    val: ptr[in, ip6t_replace] {
  //      union ip6t_replace {
  //        filter: ip6t_replace_t["filter", 3, 4, IPT_FILTER_VALID_HOOKS,
  //        ip6t_filter_matches, ip6t_filter_targets, ipt_unused, ipt_hook,
  //        ipt_hook, ipt_hook, ipt_unused, ipt_unused, ipt_hook, ipt_hook,
  //        ipt_hook, ipt_unused] {
  //          name: buffer: {66 69 6c 74 65 72 00 00 00 00 00 00 00 00 00 00 00
  //          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} (length 0x20)
  //          valid_hooks: const = 0xe (4 bytes)
  //          num_entries: const = 0x4 (4 bytes)
  //          size: bytesize = 0x340 (4 bytes)
  //          hook_pre_routing: const = 0xffffffff (4 bytes)
  //          hook_local_in: const = 0x0 (4 bytes)
  //          hook_forward: const = 0x1a0 (4 bytes)
  //          hook_local_out: const = 0x270 (4 bytes)
  //          hook_post_routing: const = 0xffffffff (4 bytes)
  //          underflow_pre_routing: const = 0xffffffff (4 bytes)
  //          underflow_local_in: const = 0xd0 (4 bytes)
  //          underflow_forward: const = 0x1a0 (4 bytes)
  //          underflow_local_out: const = 0x270 (4 bytes)
  //          underflow_post_routing: const = 0xffffffff (4 bytes)
  //          num_counters: const = 0x4 (4 bytes)
  //          counters: nil
  //          entries: ip6t_replace_entries[3, ip6t_filter_matches,
  //          ip6t_filter_targets] {
  //            entries: array[ip6t_entry[ip6t_filter_matches,
  //            ip6t_filter_targets]] {
  //              ip6t_entry[ip6t_filter_matches, ip6t_filter_targets] {
  //                matches: ip6t_entry_matches[ip6t_filter_matches] {
  //                  ipv6: union ip6t_ip6_or_uncond {
  //                    ipv6: ip6t_ip6 {
  //                      src: union ipv6_addr {
  //                        empty: ipv6_addr_empty {
  //                          a0: buffer: {00 00 00 00 00 00 00 00 00 00 00 00
  //                          00 00 00 00} (length 0x10)
  //                        }
  //                      }
  //                      dst: union ipv6_addr {
  //                        empty: ipv6_addr_empty {
  //                          a0: buffer: {00 00 00 00 00 00 00 00 00 00 00 00
  //                          00 00 00 00} (length 0x10)
  //                        }
  //                      }
  //                      smsk: array[ipv4_addr_mask_vals] {
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                      }
  //                      dmsk: array[ipv4_addr_mask_vals] {
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                        ipv4_addr_mask_vals = 0x0 (4 bytes)
  //                      }
  //                      iniface: buffer: {00 00 00 00 00 00 00 00 00 00 00 00
  //                      00 00 00 00} (length 0x10) outiface: buffer: {00 00 00
  //                      00 00 00 00 00 00 00 00 00 00 00 00 00} (length 0x10)
  //                      iniface_mask: devname_mask {
  //                        lo: devname_mask_values = 0x0 (1 bytes)
  //                        pad = 0x0 (15 bytes)
  //                      }
  //                      outiface_mask: devname_mask {
  //                        lo: devname_mask_values = 0x0 (1 bytes)
  //                        pad = 0x0 (15 bytes)
  //                      }
  //                      proto: ipv6_types = 0x6 (2 bytes)
  //                      tos: int8 = 0x0 (1 bytes)
  //                      flags: ip6t_ip6_flags = 0x1 (1 bytes)
  //                      invflags: ip6t_ip6_invflags = 0x0 (1 bytes)
  //                      pad = 0x0 (3 bytes)
  //                    }
  //                  }
  //                  nfcache: const = 0x0 (4 bytes)
  //                  target_offset: len = 0xa8 (2 bytes)
  //                  next_offset: len = 0xd0 (2 bytes)
  //                  comefrom: const = 0x0 (4 bytes)
  //                  pad = 0x0 (4 bytes)
  //                  counters: xt_counters {
  //                    pcnt: const = 0x0 (8 bytes)
  //                    bcnt: const = 0x0 (8 bytes)
  //                  }
  //                  matches: array[ip6t_filter_matches] {
  //                  }
  //                }
  //                target: union ip6t_filter_targets {
  //                  common: union ip6t_targets {
  //                    inet: union xt_inet_targets {
  //                      SYNPROXY: xt_target_t["SYNPROXY", xt_synproxy_info, 0]
  //                      {
  //                        target_size: len = 0x28 (2 bytes)
  //                        name: buffer: {53 59 4e 50 52 4f 58 59 00 00 00 00
  //                        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}
  //                        (length 0x1d) revision: const = 0x0 (1 bytes) data:
  //                        xt_synproxy_info {
  //                          options: xt_synproxy_options = 0x1 (1 bytes)
  //                          wscale: int8 = 0x7 (1 bytes)
  //                          mss: int16 = 0x5a0 (2 bytes)
  //                        }
  //                        pad = 0x0 (4 bytes)
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //              ip6t_entry[ip6t_filter_matches, ip6t_filter_targets] {
  //                matches: ip6t_entry_matches[ip6t_filter_matches] {
  //                  ipv6: union ip6t_ip6_or_uncond {
  //                    uncond: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00} (length 0x88)
  //                  }
  //                  nfcache: const = 0x0 (4 bytes)
  //                  target_offset: len = 0xa8 (2 bytes)
  //                  next_offset: len = 0xd0 (2 bytes)
  //                  comefrom: const = 0x0 (4 bytes)
  //                  pad = 0x0 (4 bytes)
  //                  counters: xt_counters {
  //                    pcnt: const = 0x0 (8 bytes)
  //                    bcnt: const = 0x0 (8 bytes)
  //                  }
  //                  matches: array[ip6t_filter_matches] {
  //                  }
  //                }
  //                target: union ip6t_filter_targets {
  //                  common: union ip6t_targets {
  //                    unspec: union xt_unspec_targets {
  //                      STANDARD: xt_target_t["", flags[nf_verdicts, int32],
  //                      0] {
  //                        target_size: len = 0x28 (2 bytes)
  //                        name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00
  //                        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}
  //                        (length 0x1d) revision: const = 0x0 (1 bytes) data:
  //                        nf_verdicts = 0xfffffffe (4 bytes) pad = 0x0 (4
  //                        bytes)
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //              ip6t_entry[ip6t_filter_matches, ip6t_filter_targets] {
  //                matches: ip6t_entry_matches[ip6t_filter_matches] {
  //                  ipv6: union ip6t_ip6_or_uncond {
  //                    uncond: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                    00 00 00 00 00 00 00 00 00} (length 0x88)
  //                  }
  //                  nfcache: const = 0x0 (4 bytes)
  //                  target_offset: len = 0xa8 (2 bytes)
  //                  next_offset: len = 0xd0 (2 bytes)
  //                  comefrom: const = 0x0 (4 bytes)
  //                  pad = 0x0 (4 bytes)
  //                  counters: xt_counters {
  //                    pcnt: const = 0x0 (8 bytes)
  //                    bcnt: const = 0x0 (8 bytes)
  //                  }
  //                  matches: array[ip6t_filter_matches] {
  //                  }
  //                }
  //                target: union ip6t_filter_targets {
  //                  common: union ip6t_targets {
  //                    unspec: union xt_unspec_targets {
  //                      STANDARD: xt_target_t["", flags[nf_verdicts, int32],
  //                      0] {
  //                        target_size: len = 0x28 (2 bytes)
  //                        name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00
  //                        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}
  //                        (length 0x1d) revision: const = 0x0 (1 bytes) data:
  //                        nf_verdicts = 0xfffffffe (4 bytes) pad = 0x0 (4
  //                        bytes)
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            underflow: ip6t_entry_underflow {
  //              matches: ip6t_entry_underflow_matches {
  //                ipv6: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00} (length 0x88) nfcache: const = 0x0 (4 bytes)
  //                target_offset: len = 0xa8 (2 bytes)
  //                next_offset: len = 0xd0 (2 bytes)
  //                comefrom: const = 0x0 (4 bytes)
  //                pad = 0x0 (4 bytes)
  //                counters: xt_counters {
  //                  pcnt: const = 0x0 (8 bytes)
  //                  bcnt: const = 0x0 (8 bytes)
  //                }
  //              }
  //              target: xt_target_t["", const[NF_ACCEPT_VERDICT, int32], 0] {
  //                target_size: len = 0x28 (2 bytes)
  //                name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 00 00 00 00 00 00 00 00 00 00 00 00} (length 0x1d)
  //                revision: const = 0x0 (1 bytes)
  //                data: const = 0xfffffffe (4 bytes)
  //                pad = 0x0 (4 bytes)
  //              }
  //            }
  //          }
  //        }
  //      }
  //    }
  //    len: len = 0x3a0 (8 bytes)
  //  ]
  memcpy((void*)0x200000000100,
         "filter\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000",
         32);
  *(uint32_t*)0x200000000120 = 0xe;
  *(uint32_t*)0x200000000124 = 4;
  *(uint32_t*)0x200000000128 = 0x340;
  *(uint32_t*)0x20000000012c = -1;
  *(uint32_t*)0x200000000130 = 0;
  *(uint32_t*)0x200000000134 = 0x1a0;
  *(uint32_t*)0x200000000138 = 0x270;
  *(uint32_t*)0x20000000013c = -1;
  *(uint32_t*)0x200000000140 = -1;
  *(uint32_t*)0x200000000144 = 0xd0;
  *(uint32_t*)0x200000000148 = 0x1a0;
  *(uint32_t*)0x20000000014c = 0x270;
  *(uint32_t*)0x200000000150 = -1;
  *(uint32_t*)0x200000000154 = 4;
  *(uint64_t*)0x200000000158 = 0;
  memset((void*)0x200000000160, 0, 16);
  memset((void*)0x200000000170, 0, 16);
  *(uint32_t*)0x200000000180 = htobe32(0);
  *(uint32_t*)0x200000000184 = htobe32(0);
  *(uint32_t*)0x200000000188 = htobe32(0);
  *(uint32_t*)0x20000000018c = htobe32(0);
  *(uint32_t*)0x200000000190 = htobe32(0);
  *(uint32_t*)0x200000000194 = htobe32(0);
  *(uint32_t*)0x200000000198 = htobe32(0);
  *(uint32_t*)0x20000000019c = htobe32(0);
  memset((void*)0x2000000001a0, 0, 16);
  memset((void*)0x2000000001b0, 0, 16);
  *(uint8_t*)0x2000000001c0 = 0;
  *(uint8_t*)0x2000000001d0 = 0;
  *(uint16_t*)0x2000000001e0 = 6;
  *(uint8_t*)0x2000000001e2 = 0;
  *(uint8_t*)0x2000000001e3 = 1;
  *(uint8_t*)0x2000000001e4 = 0;
  *(uint32_t*)0x2000000001e8 = 0;
  *(uint16_t*)0x2000000001ec = 0xa8;
  *(uint16_t*)0x2000000001ee = 0xd0;
  *(uint32_t*)0x2000000001f0 = 0;
  *(uint64_t*)0x2000000001f8 = 0;
  *(uint64_t*)0x200000000200 = 0;
  *(uint16_t*)0x200000000208 = 0x28;
  memcpy((void*)0x20000000020a,
         "SYNPROXY\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x200000000227 = 0;
  *(uint8_t*)0x200000000228 = 1;
  *(uint8_t*)0x200000000229 = 7;
  *(uint16_t*)0x20000000022a = 0x5a0;
  memset((void*)0x200000000230, 0, 136);
  *(uint32_t*)0x2000000002b8 = 0;
  *(uint16_t*)0x2000000002bc = 0xa8;
  *(uint16_t*)0x2000000002be = 0xd0;
  *(uint32_t*)0x2000000002c0 = 0;
  *(uint64_t*)0x2000000002c8 = 0;
  *(uint64_t*)0x2000000002d0 = 0;
  *(uint16_t*)0x2000000002d8 = 0x28;
  memset((void*)0x2000000002da, 0, 29);
  *(uint8_t*)0x2000000002f7 = 0;
  *(uint32_t*)0x2000000002f8 = 0xfffffffe;
  memset((void*)0x200000000300, 0, 136);
  *(uint32_t*)0x200000000388 = 0;
  *(uint16_t*)0x20000000038c = 0xa8;
  *(uint16_t*)0x20000000038e = 0xd0;
  *(uint32_t*)0x200000000390 = 0;
  *(uint64_t*)0x200000000398 = 0;
  *(uint64_t*)0x2000000003a0 = 0;
  *(uint16_t*)0x2000000003a8 = 0x28;
  memset((void*)0x2000000003aa, 0, 29);
  *(uint8_t*)0x2000000003c7 = 0;
  *(uint32_t*)0x2000000003c8 = 0xfffffffe;
  memset((void*)0x2000000003d0, 0, 136);
  *(uint32_t*)0x200000000458 = 0;
  *(uint16_t*)0x20000000045c = 0xa8;
  *(uint16_t*)0x20000000045e = 0xd0;
  *(uint32_t*)0x200000000460 = 0;
  *(uint64_t*)0x200000000468 = 0;
  *(uint64_t*)0x200000000470 = 0;
  *(uint16_t*)0x200000000478 = 0x28;
  memset((void*)0x20000000047a, 0, 29);
  *(uint8_t*)0x200000000497 = 0;
  *(uint32_t*)0x200000000498 = 0xfffffffe;
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*opt=*/0x40,
          /*val=*/0x200000000100ul, /*len=*/0x3a0ul);
  //  syz_emit_ethernet arguments: [
  //    len: len = 0x4a (8 bytes)
  //    packet: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {aa aa aa aa aa aa aa aa aa aa aa bb 86 dd 60 00
  //          00 20 00 14 33 40 fe 80 00 00 00 00 00 00 00 00 00 00 00 00 00 bb
  //          fe 80 00 00 00 00 00 00 00 00 00 00 00 00 00 aa} (length 0x36)
  //        }
  //      }
  //    }
  //    frags: nil
  //  ]
  memcpy((void*)0x200000000500,
         "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xbb\x86\xdd\x60\x00\x00"
         "\x20\x00\x14\x33\x40\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\xbb\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\xaa",
         54);
  syz_emit_ethernet(/*len=*/0x4a, /*packet=*/0x200000000500, /*frags=*/0);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*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=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  do_sandbox_none();
  return 0;
}