// https://syzkaller.appspot.com/bug?id=5d1e9d22011fa7f540c8c14a23db616eb0c26607
// 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 <net/if_arp.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sched.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/swap.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/falloc.h>
#include <linux/futex.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>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

static unsigned long long procid;

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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 initialize_tun(void)
{
  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 int runcmdline(char* cmdline)
{
  int ret = system(cmdline);
  if (ret) {
  }
  return ret;
}

static int read_tun(char* data, int size)
{
  if (tunfd < 0)
    return -1;
  int rv = read(tunfd, data, size);
  if (rv < 0) {
    if (errno == EAGAIN || errno == EBADF || errno == EBADFD)
      return -1;
    exit(1);
  }
  return rv;
}

static void flush_tun()
{
  char data[1000];
  while (read_tun(&data[0], sizeof(data)) != -1) {
  }
}

#define MAX_FDS 30

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)) {
  }
}

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);
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, umount_flags) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, umount_flags))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, umount_flags))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    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");
  flush_tun();
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

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

static const char* setup_usb()
{
  if (chmod("/dev/raw-gadget", 0666))
    return "failed to chmod /dev/raw-gadget";
  return NULL;
}

static void setup_sysctl()
{
  int cad_pid = fork();
  if (cad_pid < 0)
    exit(1);
  if (cad_pid == 0) {
    for (;;)
      sleep(100);
  }
  char tmppid[32];
  snprintf(tmppid, sizeof(tmppid), "%d", cad_pid);
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", tmppid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data)) {
    }
  }
  kill(cad_pid, SIGKILL);
  while (waitpid(cad_pid, NULL, 0) != cad_pid)
    ;
}

#define SWAP_FILE "./swap-file"
#define SWAP_FILE_SIZE (128 * 1000 * 1000)

static const char* setup_swap()
{
  swapoff(SWAP_FILE);
  unlink(SWAP_FILE);
  int fd = open(SWAP_FILE, O_CREAT | O_WRONLY | O_CLOEXEC, 0600);
  if (fd == -1)
    return "swap file open failed";
  fallocate(fd, FALLOC_FL_ZERO_RANGE, 0, SWAP_FILE_SIZE);
  close(fd);
  char cmdline[64];
  sprintf(cmdline, "mkswap %s", SWAP_FILE);
  if (runcmdline(cmdline))
    return "mkswap failed";
  if (swapon(SWAP_FILE, SWAP_FLAG_PREFER) == 1)
    return "swapon failed";
  return NULL;
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 20; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      event_timedwait(&th->done,
                      50 + (call == 17 ? 500 : 0) + (call == 19 ? 500 : 0));
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
  close_fds();
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: nil
    //    size: len = 0x0 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 1:
    //  bpf$MAP_CREATE arguments: [
    //    cmd: const = 0x0 (8 bytes)
    //    arg: nil
    //    size: len = 0x0 (8 bytes)
    //  ]
    //  returns fd_bpf_map
    syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 2:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: nil
    //    size: len = 0x0 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 3:
    //  bpf$TOKEN_CREATE arguments: [
    //    cmd: const = 0x24 (8 bytes)
    //    arg: ptr[in, bpf_token_create_arg] {
    //      bpf_token_create_arg {
    //        flags: const = 0x0 (4 bytes)
    //        bpffs_id: fd (resource)
    //      }
    //    }
    //    size: len = 0x8 (8 bytes)
    //  ]
    //  returns fd_bpf_token
    *(uint32_t*)0x200000000340 = 0;
    *(uint32_t*)0x200000000344 = -1;
    syscall(__NR_bpf, /*cmd=*/0x24ul, /*arg=*/0x200000000340ul, /*size=*/8ul);
    break;
  case 4:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0x0 (4 bytes)
    //        ninsn: bytesize8 = 0xc (4 bytes)
    //        insns: nil
    //        license: nil
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          fallback: bpf_attach_types = 0x0 (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x0 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x0 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x0 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    *(uint32_t*)0x2000000000c0 = 0;
    *(uint32_t*)0x2000000000c4 = 0xc;
    *(uint64_t*)0x2000000000c8 = 0;
    *(uint64_t*)0x2000000000d0 = 0;
    *(uint32_t*)0x2000000000d8 = 0;
    *(uint32_t*)0x2000000000dc = 0;
    *(uint64_t*)0x2000000000e0 = 0;
    *(uint32_t*)0x2000000000e8 = 0;
    *(uint32_t*)0x2000000000ec = 0;
    memset((void*)0x2000000000f0, 0, 16);
    *(uint32_t*)0x200000000100 = 0;
    *(uint32_t*)0x200000000104 = 0;
    *(uint32_t*)0x200000000108 = -1;
    *(uint32_t*)0x20000000010c = 0;
    *(uint64_t*)0x200000000110 = 0;
    *(uint32_t*)0x200000000118 = 0;
    *(uint32_t*)0x20000000011c = 0;
    *(uint64_t*)0x200000000120 = 0;
    *(uint32_t*)0x200000000128 = 0;
    *(uint32_t*)0x20000000012c = 0;
    *(uint32_t*)0x200000000130 = 0;
    *(uint32_t*)0x200000000134 = 0;
    *(uint64_t*)0x200000000138 = 0;
    *(uint64_t*)0x200000000140 = 0;
    *(uint32_t*)0x200000000148 = 0;
    *(uint32_t*)0x20000000014c = 0;
    *(uint32_t*)0x200000000150 = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul);
    break;
  case 5:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0x10 (4 bytes)
    //        ninsn: bytesize8 = 0x4 (4 bytes)
    //        insns: ptr[inout, array[ANYUNION]] {
    //          array[ANYUNION] {
    //            union ANYUNION {
    //              ANYBLOB: buffer: {b4 00 00 00 00 00 00 00 79 10 48 00 00 00
    //              00 00 61 04 00 00 00 00 00 00 95 00 00 80} (length 0x1c)
    //            }
    //          }
    //        }
    //        license: ptr[in, buffer] {
    //          buffer: {47 50 4c 00} (length 0x4)
    //        }
    //        loglev: int32 = 0x2 (4 bytes)
    //        logsize: len = 0xfd90 (4 bytes)
    //        log: ptr[out, buffer] {
    //          buffer: (DirOut)
    //        }
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          sk_msg: sk_msg_attach_types = 0x0 (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x8 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x10 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x10 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x48 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    *(uint32_t*)0x20000000e000 = 0x10;
    *(uint32_t*)0x20000000e004 = 4;
    *(uint64_t*)0x20000000e008 = 0x200000000040;
    memcpy((void*)0x200000000040,
           "\xb4\x00\x00\x00\x00\x00\x00\x00\x79\x10\x48\x00\x00\x00\x00\x00"
           "\x61\x04\x00\x00\x00\x00\x00\x00\x95\x00\x00\x80",
           28);
    *(uint64_t*)0x20000000e010 = 0x200000003ff6;
    memcpy((void*)0x200000003ff6, "GPL\000", 4);
    *(uint32_t*)0x20000000e018 = 2;
    *(uint32_t*)0x20000000e01c = 0xfd90;
    *(uint64_t*)0x20000000e020 = 0x20000000cf3d;
    *(uint32_t*)0x20000000e028 = 0;
    *(uint32_t*)0x20000000e02c = 0;
    memset((void*)0x20000000e030, 0, 16);
    *(uint32_t*)0x20000000e040 = 0;
    *(uint32_t*)0x20000000e044 = 0;
    *(uint32_t*)0x20000000e048 = -1;
    *(uint32_t*)0x20000000e04c = 8;
    *(uint64_t*)0x20000000e050 = 0;
    *(uint32_t*)0x20000000e058 = 0;
    *(uint32_t*)0x20000000e05c = 0x10;
    *(uint64_t*)0x20000000e060 = 0;
    *(uint32_t*)0x20000000e068 = 0;
    *(uint32_t*)0x20000000e06c = 0;
    *(uint32_t*)0x20000000e070 = -1;
    *(uint32_t*)0x20000000e074 = 0;
    *(uint64_t*)0x20000000e078 = 0;
    *(uint64_t*)0x20000000e080 = 0;
    *(uint32_t*)0x20000000e088 = 0x10;
    *(uint32_t*)0x20000000e08c = 0;
    *(uint32_t*)0x20000000e090 = 0;
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000000e000ul,
                  /*size=*/0x48ul);
    if (res != -1)
      r[0] = res;
    break;
  case 6:
    //  perf_event_open arguments: [
    //    attr: ptr[in, perf_event_attr] {
    //      perf_event_attr {
    //        type: perf_event_type = 0x1 (4 bytes)
    //        size: len = 0x80 (4 bytes)
    //        config0: int8 = 0x0 (1 bytes)
    //        config1: int8 = 0x0 (1 bytes)
    //        config2: int8 = 0x0 (1 bytes)
    //        config3: int8 = 0x0 (1 bytes)
    //        config4: const = 0x0 (4 bytes)
    //        sample_freq: int64 = 0x200 (8 bytes)
    //        sample_type: perf_sample_type = 0x20 (8 bytes)
    //        read_format: perf_read_format = 0x0 (8 bytes)
    //        disabled: int64 = 0x0 (0 bytes)
    //        inherit: int64 = 0x0 (0 bytes)
    //        pinned: int64 = 0x0 (0 bytes)
    //        exclusive: int64 = 0x0 (0 bytes)
    //        exclude_user: int64 = 0x0 (0 bytes)
    //        exclude_kernel: int64 = 0x0 (0 bytes)
    //        exclude_hv: int64 = 0x0 (0 bytes)
    //        exclude_idle: int64 = 0x0 (0 bytes)
    //        mmap: int64 = 0x0 (0 bytes)
    //        comm: int64 = 0x0 (0 bytes)
    //        freq: int64 = 0x0 (0 bytes)
    //        inherit_stat: int64 = 0x0 (0 bytes)
    //        enable_on_exec: int64 = 0x0 (0 bytes)
    //        task: int64 = 0x0 (0 bytes)
    //        watermark: int64 = 0x0 (0 bytes)
    //        precise_ip: int64 = 0x0 (0 bytes)
    //        mmap_data: int64 = 0x0 (0 bytes)
    //        sample_id_all: int64 = 0x0 (0 bytes)
    //        exclude_host: int64 = 0x0 (0 bytes)
    //        exclude_guest: int64 = 0x0 (0 bytes)
    //        exclude_callchain_kernel: int64 = 0x0 (0 bytes)
    //        exclude_callchain_user: int64 = 0x0 (0 bytes)
    //        mmap2: int64 = 0x0 (0 bytes)
    //        comm_exec: int64 = 0x0 (0 bytes)
    //        use_clockid: int64 = 0x0 (0 bytes)
    //        context_switch: int64 = 0x0 (0 bytes)
    //        write_backward: int64 = 0x0 (0 bytes)
    //        namespaces: int64 = 0x0 (0 bytes)
    //        ksymbol: int64 = 0x0 (0 bytes)
    //        bpf_event: int64 = 0x0 (0 bytes)
    //        aux_output: int64 = 0x0 (0 bytes)
    //        cgroup: int64 = 0x0 (0 bytes)
    //        text_poke: int64 = 0x0 (0 bytes)
    //        build_id: int64 = 0x0 (0 bytes)
    //        inherit_thread: int64 = 0x0 (0 bytes)
    //        remove_on_exec: int64 = 0x0 (0 bytes)
    //        sigtrap: int64 = 0x0 (0 bytes)
    //        __reserved_1: const = 0x0 (8 bytes)
    //        wakeup_events: int32 = 0x0 (4 bytes)
    //        bp_type: perf_bp_type = 0x0 (4 bytes)
    //        bp_config: union perf_bp_config {
    //          perf_bp: perf_bp {
    //            bp_addr: nil
    //            bp_len: perf_bp_lens = 0x4 (8 bytes)
    //          }
    //        }
    //        branch_sample_type: perf_branch_sample_type = 0x0 (8 bytes)
    //        sample_regs_user: int64 = 0x0 (8 bytes)
    //        sample_stack_user: int32 = 0x0 (4 bytes)
    //        clockid: clock_type = 0x0 (4 bytes)
    //        sample_regs_intr: int64 = 0x0 (8 bytes)
    //        aux_watermark: int32 = 0x0 (4 bytes)
    //        sample_max_stack: int16 = 0x0 (2 bytes)
    //        __reserved_2: const = 0x0 (2 bytes)
    //        aux_sample_size: int32 = 0x0 (4 bytes)
    //        __reserved_3: const = 0x0 (4 bytes)
    //        sig_data: int64 = 0x0 (8 bytes)
    //      }
    //    }
    //    pid: pid (resource)
    //    cpu: intptr = 0xffffffffffffffff (8 bytes)
    //    group: fd_perf (resource)
    //    flags: perf_flags = 0x0 (8 bytes)
    //  ]
    //  returns fd_perf
    *(uint32_t*)0x2000000002c0 = 1;
    *(uint32_t*)0x2000000002c4 = 0x80;
    *(uint8_t*)0x2000000002c8 = 0;
    *(uint8_t*)0x2000000002c9 = 0;
    *(uint8_t*)0x2000000002ca = 0;
    *(uint8_t*)0x2000000002cb = 0;
    *(uint32_t*)0x2000000002cc = 0;
    *(uint64_t*)0x2000000002d0 = 0x200;
    *(uint64_t*)0x2000000002d8 = 0x20;
    *(uint64_t*)0x2000000002e0 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 29, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 30, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 31, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 32, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 33, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 34, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 35, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 36, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 37, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000002e8, 0, 38, 26);
    *(uint32_t*)0x2000000002f0 = 0;
    *(uint32_t*)0x2000000002f4 = 0;
    *(uint64_t*)0x2000000002f8 = 0;
    *(uint64_t*)0x200000000300 = 4;
    *(uint64_t*)0x200000000308 = 0;
    *(uint64_t*)0x200000000310 = 0;
    *(uint32_t*)0x200000000318 = 0;
    *(uint32_t*)0x20000000031c = 0;
    *(uint64_t*)0x200000000320 = 0;
    *(uint32_t*)0x200000000328 = 0;
    *(uint16_t*)0x20000000032c = 0;
    *(uint16_t*)0x20000000032e = 0;
    *(uint32_t*)0x200000000330 = 0;
    *(uint32_t*)0x200000000334 = 0;
    *(uint64_t*)0x200000000338 = 0;
    syscall(__NR_perf_event_open, /*attr=*/0x2000000002c0ul, /*pid=*/0,
            /*cpu=*/(intptr_t)-1, /*group=*/(intptr_t)-1, /*flags=*/0ul);
    break;
  case 7:
    //  close arguments: [
    //    fd: fd (resource)
    //  ]
    syscall(__NR_close, /*fd=*/r[0]);
    break;
  case 8:
    //  socketpair$unix arguments: [
    //    domain: const = 0x1 (8 bytes)
    //    type: unix_socket_type = 0x1 (8 bytes)
    //    proto: const = 0x0 (4 bytes)
    //    fds: ptr[out, unix_pair] {
    //      unix_pair {
    //        fd0: sock_unix (resource)
    //        fd1: sock_unix (resource)
    //      }
    //    }
    //  ]
    res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=SOCK_STREAM*/ 1ul,
                  /*proto=*/0, /*fds=*/0x2000000029c0ul);
    if (res != -1)
      r[1] = *(uint32_t*)0x2000000029c4;
    break;
  case 9:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0xe (4 bytes)
    //        ninsn: bytesize8 = 0x4 (4 bytes)
    //        insns: ptr[inout, array[ANYUNION]] {
    //          array[ANYUNION] {
    //            union ANYUNION {
    //              ANYBLOB: buffer: {b4 05 00 00 fd ff 7f 00 61 10 58 00 00 00
    //              00 00 c6 00 00 00 00 00 00 00 95 00 00 00 00 00 00 00 9f 33
    //              ef 60 91 6e 6e 71 3f 1e eb 0b 72 5a d9 9b 81 7f d9 8c d8 07
    //              3a 46 b0 8b 94 21 4d 81 6f 77 06 00 dc ca 55 f2 1f 3c a9 e8
    //              22 d1 82 05 4d 54 d5 3c d2 b6 db 71 4e 4b eb 41 47 00 00 01
    //              00 00 00 00 8f 2b 90 00 f2 24 25 e4 09 7e d6 2c bc 89 10 61
    //              01 7c fa 6f 61 48 a1 c1 e4 3f 00 00 1b de 60 be ac 67 1e 8e
    //              8f de cb 03 58 8a a6 23 fa 71 f3 1b f0 f8 71 ab 5c 2f f8 8a
    //              fc 60 02 7f 4e 5b 52 71 ed 58 e8 35 cf 0d 00 00 00 00 98 b5
    //              1f e6 8d b8 d9 db e8 7d cf f4 14 ed 00 00 00 00 00 00 00 00
    //              00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b3
    //              47 ab e6 35 2a 08 0f 81 40 e5 fd 10 74 7b 6e cd b3 54 26 46
    //              bf 63 6e 3d 6e 70 0e 5b 05 00 00 00 00 00 00 00 eb 9e 14 03
    //              e6 c8 f7 a1 87 ea f6 0f 3a 17 f0 f0 46 a3 07 a4 03 c1 9d 98
    //              29 c9 0b d2 11 42 52 58 15 67 ac ae 71 5c be 1b 57 d5 cd a4
    //              32 c5 b9 10 40 06 23 d2 41 95 40 5f 2e 76 cc b7 b3 7b 41 21
    //              5c 18 4e 73 1f b1} (length 0x140)
    //            }
    //          }
    //        }
    //        license: ptr[in, buffer] {
    //          buffer: {47 50 4c 00} (length 0x4)
    //        }
    //        loglev: int32 = 0x4 (4 bytes)
    //        logsize: len = 0xfd90 (4 bytes)
    //        log: ptr[out, buffer] {
    //          buffer: (DirOut)
    //        }
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          sk_skb: sk_skb_attach_types = 0x0 (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x8 (4 bytes)
    //        func_info: ptr[in, bpf_func_info] {
    //          bpf_func_info {
    //            insn_off: int32 = 0x0 (4 bytes)
    //            type_id: int32 = 0x0 (4 bytes)
    //          }
    //        }
    //        func_info_cnt: len = 0x366 (4 bytes)
    //        line_info_rec_size: const = 0x10 (4 bytes)
    //        line_info: ptr[in, bpf_line_info] {
    //          bpf_line_info {
    //            insn_off: int32 = 0x0 (4 bytes)
    //            file_name_off: int32 = 0x0 (4 bytes)
    //            line_off: int32 = 0x0 (4 bytes)
    //            line_col: int32 = 0x0 (4 bytes)
    //          }
    //        }
    //        line_info_cnt: len = 0x1dd (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x10 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x48 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    *(uint32_t*)0x20000000e000 = 0xe;
    *(uint32_t*)0x20000000e004 = 4;
    *(uint64_t*)0x20000000e008 = 0x200000000540;
    memcpy(
        (void*)0x200000000540,
        "\xb4\x05\x00\x00\xfd\xff\x7f\x00\x61\x10\x58\x00\x00\x00\x00\x00\xc6"
        "\x00\x00\x00\x00\x00\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00\x9f\x33"
        "\xef\x60\x91\x6e\x6e\x71\x3f\x1e\xeb\x0b\x72\x5a\xd9\x9b\x81\x7f\xd9"
        "\x8c\xd8\x07\x3a\x46\xb0\x8b\x94\x21\x4d\x81\x6f\x77\x06\x00\xdc\xca"
        "\x55\xf2\x1f\x3c\xa9\xe8\x22\xd1\x82\x05\x4d\x54\xd5\x3c\xd2\xb6\xdb"
        "\x71\x4e\x4b\xeb\x41\x47\x00\x00\x01\x00\x00\x00\x00\x8f\x2b\x90\x00"
        "\xf2\x24\x25\xe4\x09\x7e\xd6\x2c\xbc\x89\x10\x61\x01\x7c\xfa\x6f\x61"
        "\x48\xa1\xc1\xe4\x3f\x00\x00\x1b\xde\x60\xbe\xac\x67\x1e\x8e\x8f\xde"
        "\xcb\x03\x58\x8a\xa6\x23\xfa\x71\xf3\x1b\xf0\xf8\x71\xab\x5c\x2f\xf8"
        "\x8a\xfc\x60\x02\x7f\x4e\x5b\x52\x71\xed\x58\xe8\x35\xcf\x0d\x00\x00"
        "\x00\x00\x98\xb5\x1f\xe6\x8d\xb8\xd9\xdb\xe8\x7d\xcf\xf4\x14\xed\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb3\x47\xab\xe6\x35\x2a\x08\x0f"
        "\x81\x40\xe5\xfd\x10\x74\x7b\x6e\xcd\xb3\x54\x26\x46\xbf\x63\x6e\x3d"
        "\x6e\x70\x0e\x5b\x05\x00\x00\x00\x00\x00\x00\x00\xeb\x9e\x14\x03\xe6"
        "\xc8\xf7\xa1\x87\xea\xf6\x0f\x3a\x17\xf0\xf0\x46\xa3\x07\xa4\x03\xc1"
        "\x9d\x98\x29\xc9\x0b\xd2\x11\x42\x52\x58\x15\x67\xac\xae\x71\x5c\xbe"
        "\x1b\x57\xd5\xcd\xa4\x32\xc5\xb9\x10\x40\x06\x23\xd2\x41\x95\x40\x5f"
        "\x2e\x76\xcc\xb7\xb3\x7b\x41\x21\x5c\x18\x4e\x73\x1f\xb1",
        320);
    *(uint64_t*)0x20000000e010 = 0x200000003ff6;
    memcpy((void*)0x200000003ff6, "GPL\000", 4);
    *(uint32_t*)0x20000000e018 = 4;
    *(uint32_t*)0x20000000e01c = 0xfd90;
    *(uint64_t*)0x20000000e020 = 0x20000000cf3d;
    *(uint32_t*)0x20000000e028 = 0;
    *(uint32_t*)0x20000000e02c = 0;
    memset((void*)0x20000000e030, 0, 16);
    *(uint32_t*)0x20000000e040 = 0;
    *(uint32_t*)0x20000000e044 = 0;
    *(uint32_t*)0x20000000e048 = -1;
    *(uint32_t*)0x20000000e04c = 8;
    *(uint64_t*)0x20000000e050 = 0x200000000000;
    *(uint32_t*)0x200000000000 = 0;
    *(uint32_t*)0x200000000004 = 0;
    *(uint32_t*)0x20000000e058 = 0x366;
    *(uint32_t*)0x20000000e05c = 0x10;
    *(uint64_t*)0x20000000e060 = 0x200000000000;
    *(uint32_t*)0x200000000000 = 0;
    *(uint32_t*)0x200000000004 = 0;
    *(uint32_t*)0x200000000008 = 0;
    *(uint32_t*)0x20000000000c = 0;
    *(uint32_t*)0x20000000e068 = 0x1dd;
    *(uint32_t*)0x20000000e06c = 0;
    *(uint32_t*)0x20000000e070 = -1;
    *(uint32_t*)0x20000000e074 = 0;
    *(uint64_t*)0x20000000e078 = 0;
    *(uint64_t*)0x20000000e080 = 0;
    *(uint32_t*)0x20000000e088 = 0x10;
    *(uint32_t*)0x20000000e08c = 0;
    *(uint32_t*)0x20000000e090 = 0;
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000000e000ul,
                  /*size=*/0x48ul);
    if (res != -1)
      r[2] = res;
    break;
  case 10:
    //  bpf$MAP_CREATE arguments: [
    //    cmd: const = 0x0 (8 bytes)
    //    arg: ptr[in, bpf_map_create_arg] {
    //      union bpf_map_create_arg {
    //        base: bpf_map_create_arg_t[flags[bpf_map_type, int32], int32,
    //        int32, int32, flags[map_flags, int32], const[0, int64]] {
    //          type: bpf_map_type = 0xf (4 bytes)
    //          ksize: int32 = 0x4 (4 bytes)
    //          vsize: int32 = 0x4 (4 bytes)
    //          max: int32 = 0x12 (4 bytes)
    //          flags: map_flags = 0x0 (4 bytes)
    //          inner: fd_bpf_map (resource)
    //          node: int32 = 0x0 (4 bytes)
    //          map_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //          00} (length 0x10) map_ifindex: ifindex (resource) btf_fd: fd_btf
    //          (resource) btf_key_type_id: int32 = 0x0 (4 bytes)
    //          btf_value_type_id: int32 = 0x0 (4 bytes)
    //          btf_vmlinux_type_id: int32 = 0x0 (4 bytes)
    //          map_extra: const = 0x0 (8 bytes)
    //          value_type_btf_obj_fd: union
    //          _bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32,
    //          int32, flags[map_flags, int32], const[0,
    //          int64]]_value_type_btf_obj_fd_wrapper {
    //            void: buffer: {} (length 0x0)
    //          }
    //          pad1: union _bpf_map_create_arg_t[flags[bpf_map_type, int32],
    //          int32, int32, int32, flags[map_flags, int32], const[0,
    //          int64]]_pad1_wrapper {
    //            value: const = 0x0 (4 bytes)
    //          }
    //          map_token_fd: union _bpf_map_create_arg_t[flags[bpf_map_type,
    //          int32], int32, int32, int32, flags[map_flags, int32], const[0,
    //          int64]]_map_token_fd_wrapper {
    //            void: buffer: {} (length 0x0)
    //          }
    //          pad2: union _bpf_map_create_arg_t[flags[bpf_map_type, int32],
    //          int32, int32, int32, flags[map_flags, int32], const[0,
    //          int64]]_pad2_wrapper {
    //            value: const = 0x0 (4 bytes)
    //          }
    //        }
    //      }
    //    }
    //    size: len = 0x48 (8 bytes)
    //  ]
    //  returns fd_bpf_map
    *(uint32_t*)0x200000000200 = 0xf;
    *(uint32_t*)0x200000000204 = 4;
    *(uint32_t*)0x200000000208 = 4;
    *(uint32_t*)0x20000000020c = 0x12;
    *(uint32_t*)0x200000000210 = 0;
    *(uint32_t*)0x200000000214 = -1;
    *(uint32_t*)0x200000000218 = 0;
    memset((void*)0x20000000021c, 0, 16);
    *(uint32_t*)0x20000000022c = 0;
    *(uint32_t*)0x200000000230 = -1;
    *(uint32_t*)0x200000000234 = 0;
    *(uint32_t*)0x200000000238 = 0;
    *(uint32_t*)0x20000000023c = 0;
    *(uint64_t*)0x200000000240 = 0;
    *(uint32_t*)0x200000000248 = 0;
    *(uint32_t*)0x20000000024c = 0;
    res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000200ul,
                  /*size=*/0x48ul);
    if (res != -1)
      r[3] = res;
    break;
  case 11:
    //  bpf$BPF_PROG_DETACH arguments: [
    //    cmd: const = 0x8 (8 bytes)
    //    arg: ptr[in, bpf_detach_arg] {
    //      bpf_detach_arg {
    //        target: union bpf_attach_targets {
    //          map: fd_bpf_map (resource)
    //        }
    //        prog: fd_bpf_prog (resource)
    //        type: bpf_attach_types = 0x26 (4 bytes)
    //        flags: bpf_mprog_attach_flags = 0x0 (4 bytes)
    //        replace_bpf_fd: const = 0x0 (4 bytes)
    //        relative_link_fd: union _bpf_detach_arg_relative_link_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        relative_prog_fd: union _bpf_detach_arg_relative_prog_fd_wrapper {
    //          value: fd_bpf_prog (resource)
    //        }
    //        relative_link_id: union _bpf_detach_arg_relative_link_id_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        relative_prog_id: union _bpf_detach_arg_relative_prog_id_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        exp_revision: bpf_revision (resource)
    //      }
    //    }
    //    size: len = 0x10 (8 bytes)
    //  ]
    *(uint32_t*)0x200000000080 = r[3];
    *(uint32_t*)0x200000000084 = r[2];
    *(uint32_t*)0x200000000088 = 0x26;
    *(uint32_t*)0x20000000008c = 0;
    *(uint32_t*)0x200000000090 = 0;
    *(uint32_t*)0x200000000094 = -1;
    *(uint64_t*)0x200000000098 = 0;
    syscall(__NR_bpf, /*cmd=*/8ul, /*arg=*/0x200000000080ul, /*size=*/0x10ul);
    break;
  case 12:
    //  bpf$MAP_UPDATE_ELEM_TAIL_CALL arguments: [
    //    cmd: const = 0x2 (8 bytes)
    //    arg: ptr[inout, bpf_map_update_tail_call_arg] {
    //      bpf_map_update_tail_call_arg {
    //        map: tail_call_map_update {
    //          in: tail_call_map_fd (resource)
    //          out: tail_call_map (resource)
    //        }
    //        pad = 0x0 (4 bytes)
    //        key: ptr[in, const[0, const]] {
    //          const = 0x0 (4 bytes)
    //        }
    //        val: ptr[in, fd_bpf_prog] {
    //          fd_bpf_prog (resource)
    //        }
    //        flags: const = 0x0 (8 bytes)
    //      }
    //    }
    //    size: len = 0x20 (8 bytes)
    //  ]
    *(uint32_t*)0x2000000000c0 = r[3];
    *(uint64_t*)0x2000000000c8 = 0x200000000000;
    *(uint32_t*)0x200000000000 = 0;
    *(uint64_t*)0x2000000000d0 = 0x200000000080;
    *(uint32_t*)0x200000000080 = r[0];
    *(uint64_t*)0x2000000000d8 = 0;
    syscall(__NR_bpf, /*cmd=*/2ul, /*arg=*/0x2000000000c0ul, /*size=*/0x20ul);
    break;
  case 13:
    //  sendmsg$inet arguments: [
    //    fd: sock (resource)
    //    msg: ptr[in, msghdr_inet] {
    //      msghdr_inet {
    //        msg_name: nil
    //        msg_namelen: len = 0x4003e80 (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: {3e} (length 0x1)
    //              }
    //              len: len = 0x20000281 (8 bytes)
    //            }
    //          }
    //        }
    //        msg_iovlen: len = 0x1 (8 bytes)
    //        msg_control: nil
    //        msg_controllen: bytesize = 0x0 (8 bytes)
    //        msg_flags: const = 0x0 (4 bytes)
    //        pad = 0x0 (4 bytes)
    //      }
    //    }
    //    f: send_flags = 0x200000000000000 (8 bytes)
    //  ]
    *(uint64_t*)0x200000000500 = 0;
    *(uint32_t*)0x200000000508 = 0x4003e80;
    *(uint64_t*)0x200000000510 = 0x200000001740;
    *(uint64_t*)0x200000001740 = 0x200000000280;
    memset((void*)0x200000000280, 62, 1);
    *(uint64_t*)0x200000001748 = 0x20000281;
    *(uint64_t*)0x200000000518 = 1;
    *(uint64_t*)0x200000000520 = 0;
    *(uint64_t*)0x200000000528 = 0;
    *(uint32_t*)0x200000000530 = 0;
    syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x200000000500ul,
            /*f=*/0x200000000000000ul);
    break;
  case 14:
    //  bpf$MAP_CREATE arguments: [
    //    cmd: const = 0x0 (8 bytes)
    //    arg: ptr[in, bpf_map_create_arg] {
    //      union bpf_map_create_arg {
    //        base: bpf_map_create_arg_t[flags[bpf_map_type, int32], int32,
    //        int32, int32, flags[map_flags, int32], const[0, int64]] {
    //          type: bpf_map_type = 0x16 (4 bytes)
    //          ksize: int32 = 0x0 (4 bytes)
    //          vsize: int32 = 0x4 (4 bytes)
    //          max: int32 = 0xff (4 bytes)
    //          flags: map_flags = 0x0 (4 bytes)
    //          inner: fd_bpf_map (resource)
    //          node: int32 = 0x0 (4 bytes)
    //          map_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //          00} (length 0x10) map_ifindex: ifindex (resource) btf_fd: fd_btf
    //          (resource) btf_key_type_id: int32 = 0x0 (4 bytes)
    //          btf_value_type_id: int32 = 0x0 (4 bytes)
    //          btf_vmlinux_type_id: int32 = 0x0 (4 bytes)
    //          map_extra: const = 0x0 (8 bytes)
    //          value_type_btf_obj_fd: union
    //          _bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32,
    //          int32, flags[map_flags, int32], const[0,
    //          int64]]_value_type_btf_obj_fd_wrapper {
    //            void: buffer: {} (length 0x0)
    //          }
    //          pad1: union _bpf_map_create_arg_t[flags[bpf_map_type, int32],
    //          int32, int32, int32, flags[map_flags, int32], const[0,
    //          int64]]_pad1_wrapper {
    //            value: const = 0x0 (4 bytes)
    //          }
    //          map_token_fd: union _bpf_map_create_arg_t[flags[bpf_map_type,
    //          int32], int32, int32, int32, flags[map_flags, int32], const[0,
    //          int64]]_map_token_fd_wrapper {
    //            void: buffer: {} (length 0x0)
    //          }
    //          pad2: union _bpf_map_create_arg_t[flags[bpf_map_type, int32],
    //          int32, int32, int32, flags[map_flags, int32], const[0,
    //          int64]]_pad2_wrapper {
    //            value: const = 0x0 (4 bytes)
    //          }
    //        }
    //      }
    //    }
    //    size: len = 0x48 (8 bytes)
    //  ]
    //  returns fd_bpf_map
    *(uint32_t*)0x200000000640 = 0x16;
    *(uint32_t*)0x200000000644 = 0;
    *(uint32_t*)0x200000000648 = 4;
    *(uint32_t*)0x20000000064c = 0xff;
    *(uint32_t*)0x200000000650 = 0;
    *(uint32_t*)0x200000000654 = 1;
    *(uint32_t*)0x200000000658 = 0;
    memset((void*)0x20000000065c, 0, 16);
    *(uint32_t*)0x20000000066c = 0;
    *(uint32_t*)0x200000000670 = -1;
    *(uint32_t*)0x200000000674 = 0;
    *(uint32_t*)0x200000000678 = 0;
    *(uint32_t*)0x20000000067c = 0;
    *(uint64_t*)0x200000000680 = 0;
    *(uint32_t*)0x200000000688 = 0;
    *(uint32_t*)0x20000000068c = 0;
    syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000640ul, /*size=*/0x48ul);
    break;
  case 15:
    //  bpf$PROG_LOAD_XDP arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32],
    //    const[BPF_XDP, int32], const[0, int32], const[0, int32]]] {
    //      bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32], const[BPF_XDP, int32],
    //      const[0, int32], const[0, int32]] {
    //        type: const = 0x3 (4 bytes)
    //        ninsn: bytesize8 = 0xc (4 bytes)
    //        insns: ptr[inout, array[ANYUNION]] {
    //          array[ANYUNION] {
    //          }
    //        }
    //        license: nil
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: const = 0x25 (4 bytes)
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x8 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x10 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: const = 0x0 (4 bytes)
    //        attach_prog_fd: const = 0x0 (4 bytes)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x10 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32],
    //        const[BPF_XDP, int32], const[0, int32], const[0,
    //        int32]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32],
    //        const[BPF_XDP, int32], const[0, int32], const[0,
    //        int32]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog_xdp
    *(uint32_t*)0x200000000a40 = 3;
    *(uint32_t*)0x200000000a44 = 0xc;
    *(uint64_t*)0x200000000a48 = 0x200000000440;
    *(uint64_t*)0x200000000a50 = 0;
    *(uint32_t*)0x200000000a58 = 0;
    *(uint32_t*)0x200000000a5c = 0;
    *(uint64_t*)0x200000000a60 = 0;
    *(uint32_t*)0x200000000a68 = 0;
    *(uint32_t*)0x200000000a6c = 0;
    memset((void*)0x200000000a70, 0, 16);
    *(uint32_t*)0x200000000a80 = 0;
    *(uint32_t*)0x200000000a84 = 0x25;
    *(uint32_t*)0x200000000a88 = -1;
    *(uint32_t*)0x200000000a8c = 8;
    *(uint64_t*)0x200000000a90 = 0;
    *(uint32_t*)0x200000000a98 = 0;
    *(uint32_t*)0x200000000a9c = 0x10;
    *(uint64_t*)0x200000000aa0 = 0;
    *(uint32_t*)0x200000000aa8 = 0;
    *(uint32_t*)0x200000000aac = 0;
    *(uint32_t*)0x200000000ab0 = 0;
    *(uint32_t*)0x200000000ab4 = 0;
    *(uint64_t*)0x200000000ab8 = 0;
    *(uint64_t*)0x200000000ac0 = 0;
    *(uint32_t*)0x200000000ac8 = 0x10;
    *(uint32_t*)0x200000000acc = 0;
    *(uint32_t*)0x200000000ad0 = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000a40ul, /*size=*/0x94ul);
    break;
  case 16:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: nil
    //    size: len = 0x0 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 17:
    //  bpf$BPF_RAW_TRACEPOINT_OPEN arguments: [
    //    cmd: const = 0x11 (8 bytes)
    //    arg: nil
    //    size: len = 0x0 (8 bytes)
    //  ]
    //  returns fd_perf_base
    syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 18:
    //  bpf$PROG_LOAD_XDP arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32],
    //    const[BPF_XDP, int32], const[0, int32], const[0, int32]]] {
    //      bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32], const[BPF_XDP, int32],
    //      const[0, int32], const[0, int32]] {
    //        type: const = 0x3 (4 bytes)
    //        ninsn: bytesize8 = 0xc (4 bytes)
    //        insns: nil
    //        license: nil
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: const = 0x25 (4 bytes)
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x8 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x10 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: const = 0x0 (4 bytes)
    //        attach_prog_fd: const = 0x0 (4 bytes)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x10 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32],
    //        const[BPF_XDP, int32], const[0, int32], const[0,
    //        int32]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[const[BPF_PROG_TYPE_XDP, int32],
    //        const[BPF_XDP, int32], const[0, int32], const[0,
    //        int32]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog_xdp
    *(uint32_t*)0x200000000a40 = 3;
    *(uint32_t*)0x200000000a44 = 0xc;
    *(uint64_t*)0x200000000a48 = 0;
    *(uint64_t*)0x200000000a50 = 0;
    *(uint32_t*)0x200000000a58 = 0;
    *(uint32_t*)0x200000000a5c = 0;
    *(uint64_t*)0x200000000a60 = 0;
    *(uint32_t*)0x200000000a68 = 0;
    *(uint32_t*)0x200000000a6c = 0;
    memset((void*)0x200000000a70, 0, 16);
    *(uint32_t*)0x200000000a80 = 0;
    *(uint32_t*)0x200000000a84 = 0x25;
    *(uint32_t*)0x200000000a88 = -1;
    *(uint32_t*)0x200000000a8c = 8;
    *(uint64_t*)0x200000000a90 = 0;
    *(uint32_t*)0x200000000a98 = 0;
    *(uint32_t*)0x200000000a9c = 0x10;
    *(uint64_t*)0x200000000aa0 = 0;
    *(uint32_t*)0x200000000aa8 = 0;
    *(uint32_t*)0x200000000aac = 0;
    *(uint32_t*)0x200000000ab0 = 0;
    *(uint32_t*)0x200000000ab4 = 0;
    *(uint64_t*)0x200000000ab8 = 0;
    *(uint64_t*)0x200000000ac0 = 0;
    *(uint32_t*)0x200000000ac8 = 0x10;
    *(uint32_t*)0x200000000acc = 0;
    *(uint32_t*)0x200000000ad0 = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000a40ul, /*size=*/0x94ul);
    break;
  case 19:
    //  bpf$BPF_RAW_TRACEPOINT_OPEN arguments: [
    //    cmd: const = 0x11 (8 bytes)
    //    arg: ptr[in, bpf_raw_tracepoint] {
    //      bpf_raw_tracepoint {
    //        name: ptr[in, buffer] {
    //          buffer: {73 63 68 65 64 5f 73 77 69 74 63 68 00} (length 0xd)
    //        }
    //        prog_fd: fd_bpf_prog_raw_tracepoint (resource)
    //        pad: const = 0x0 (4 bytes)
    //        cookie: int64 = 0x0 (8 bytes)
    //      }
    //    }
    //    size: len = 0x10 (8 bytes)
    //  ]
    //  returns fd_perf_base
    *(uint64_t*)0x200000000740 = 0x200000000300;
    memcpy((void*)0x200000000300, "sched_switch\000", 13);
    *(uint32_t*)0x200000000748 = -1;
    *(uint32_t*)0x20000000074c = 0;
    *(uint64_t*)0x200000000750 = 0;
    syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200000000740ul,
            /*size=*/0x10ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  setup_sysctl();
  const char* reason;
  (void)reason;
  if ((reason = setup_usb()))
    printf("the reproducer may not work as expected: USB injection setup "
           "failed: %s\n",
           reason);
  if ((reason = setup_swap()))
    printf("the reproducer may not work as expected: swap setup failed: %s\n",
           reason);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}