// https://syzkaller.appspot.com/bug?id=2f9e34237f88ef877a40238fa55088f73366a9ba
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sched.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

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

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;
}

#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))))

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_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;
}

#define MAX_FDS 30

static long syz_genetlink_get_family_id(volatile long name,
                                        volatile long sock_arg)
{
  int fd = sock_arg;
  if (fd < 0) {
    fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
    if (fd == -1) {
      return -1;
    }
  }
  struct nlmsg nlmsg_tmp;
  int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false);
  if ((int)sock_arg < 0)
    close(fd);
  if (ret < 0) {
    return -1;
  }
  return ret;
}

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");
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

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

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

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      close_fds();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      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;
    }
  }
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0,
                 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  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[0] = res;
  //  socket arguments: [
  //    domain: socket_domain = 0x10 (8 bytes)
  //    type: socket_type = 0x803 (8 bytes)
  //    proto: int32 = 0x2 (4 bytes)
  //  ]
  //  returns sock
  res = syscall(__NR_socket, /*domain=AF_NETLINK*/ 0x10ul,
                /*type=SOCK_NONBLOCK|SOCK_RAW*/ 0x803ul, /*proto=*/2);
  if (res != -1)
    r[1] = res;
  //  syz_genetlink_get_family_id$mptcp arguments: [
  //    name: ptr[in, buffer] {
  //      buffer: {6d 70 74 63 70 5f 70 6d 00} (length 0x9)
  //    }
  //    fd: sock_nl_generic (resource)
  //  ]
  //  returns genl_mptcp_family_id
  memcpy((void*)0x2000000000c0, "mptcp_pm\000", 9);
  syz_genetlink_get_family_id(/*name=*/0x2000000000c0, /*fd=*/r[1]);
  //  getsockname$packet arguments: [
  //    fd: sock_packet (resource)
  //    addr: ptr[out, sockaddr_ll] {
  //      sockaddr_ll {
  //        sll_family: const = 0x11 (2 bytes)
  //        sll_protocol: packet_protocols = 0x0 (2 bytes)
  //        sll_ifindex: ifindex (resource)
  //        sll_hatype: const = 0x1 (2 bytes)
  //        sll_pkttype: int8 = 0x0 (1 bytes)
  //        sll_halen: const = 0x6 (1 bytes)
  //        sll_addr: union mac_addr {
  //          broadcast: buffer: (DirOut)
  //        }
  //        pad: buffer: (DirOut)
  //      }
  //    }
  //    addrlen: ptr[inout, len] {
  //      len = 0x14 (4 bytes)
  //    }
  //  ]
  *(uint32_t*)0x2000000003c0 = 0x14;
  res = syscall(__NR_getsockname, /*fd=*/r[1], /*addr=*/0x200000000100ul,
                /*addrlen=*/0x2000000003c0ul);
  if (res != -1)
    r[2] = *(uint32_t*)0x200000000104;
  //  sendmsg$nl_route_sched arguments: [
  //    fd: sock_nl_route (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] {
  //      msghdr_netlink[netlink_msg_route_sched] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_route_sched]] {
  //          iovec[in, netlink_msg_route_sched] {
  //            addr: ptr[in, netlink_msg_route_sched] {
  //              union netlink_msg_route_sched {
  //                newqdisc: netlink_msg_t[const[RTM_NEWQDISC, int16],
  //                tcmsg[AF_UNSPEC], rtm_tca_policy] {
  //                  len: len = 0x48 (4 bytes)
  //                  type: const = 0x24 (2 bytes)
  //                  flags: netlink_msg_flags = 0x5820a61ca228651 (2 bytes)
  //                  seq: int32 = 0x0 (4 bytes)
  //                  pid: int32 = 0x0 (4 bytes)
  //                  payload: tcmsg[AF_UNSPEC] {
  //                    family: const = 0x0 (1 bytes)
  //                    tcm__pad1: const = 0x0 (1 bytes)
  //                    tcm__pad2: const = 0x0 (2 bytes)
  //                    ifindex: ifindex (resource)
  //                    tcm_handle: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x0 (2 bytes)
  //                      major: tcm_handle_offsets = 0x0 (2 bytes)
  //                    }
  //                    tcm_parent: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xffff (2 bytes)
  //                      major: tcm_handle_offsets = 0xffff (2 bytes)
  //                    }
  //                    tcm_info: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x0 (2 bytes)
  //                      major: tcm_handle_offsets = 0x0 (2 bytes)
  //                    }
  //                  }
  //                  attrs: array[rtm_tca_policy] {
  //                    union rtm_tca_policy {
  //                      qdisc_kind_options: union qdisc_kind_options {
  //                        q_htb: tca_kind_options_t["htb", array[htb_policy]]
  //                        {
  //                          TCA_KIND: nlattr_t[const[TCA_KIND, int16],
  //                          string["htb"]] {
  //                            nla_len: offsetof = 0x8 (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {68 74 62 00} (length 0x4)
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                          TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16],
  //                          array[htb_policy]] {
  //                            nla_len: offsetof = 0x1c (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: array[htb_policy] {
  //                              union htb_policy {
  //                                TCA_HTB_INIT: nlattr_t[const[TCA_HTB_INIT,
  //                                int16], tc_htb_glob] {
  //                                  nla_len: offsetof = 0x18 (2 bytes)
  //                                  nla_type: const = 0x2 (2 bytes)
  //                                  payload: tc_htb_glob {
  //                                    version: const = 0x3 (4 bytes)
  //                                    rate2quantum: int32 = 0x2 (4 bytes)
  //                                    defcls: int32 = 0x8 (4 bytes)
  //                                    debug: const = 0x0 (4 bytes)
  //                                    direct_pkts: const = 0x0 (4 bytes)
  //                                  }
  //                                  size: buffer: {} (length 0x0)
  //                                }
  //                              }
  //                            }
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x48 (8 bytes)
  //          }
  //        }
  //        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 = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000005840 = 0;
  *(uint32_t*)0x200000005848 = 0;
  *(uint64_t*)0x200000005850 = 0x200000000080;
  *(uint64_t*)0x200000000080 = 0x200000000200;
  *(uint32_t*)0x200000000200 = 0x48;
  *(uint16_t*)0x200000000204 = 0x24;
  *(uint16_t*)0x200000000206 = 0x8651;
  *(uint32_t*)0x200000000208 = 0;
  *(uint32_t*)0x20000000020c = 0;
  *(uint8_t*)0x200000000210 = 0;
  *(uint8_t*)0x200000000211 = 0;
  *(uint16_t*)0x200000000212 = 0;
  *(uint32_t*)0x200000000214 = r[2];
  *(uint16_t*)0x200000000218 = 0;
  *(uint16_t*)0x20000000021a = 0;
  *(uint16_t*)0x20000000021c = -1;
  *(uint16_t*)0x20000000021e = -1;
  *(uint16_t*)0x200000000220 = 0;
  *(uint16_t*)0x200000000222 = 0;
  *(uint16_t*)0x200000000224 = 8;
  *(uint16_t*)0x200000000226 = 1;
  memcpy((void*)0x200000000228, "htb\000", 4);
  *(uint16_t*)0x20000000022c = 0x1c;
  *(uint16_t*)0x20000000022e = 2;
  *(uint16_t*)0x200000000230 = 0x18;
  *(uint16_t*)0x200000000232 = 2;
  *(uint32_t*)0x200000000234 = 3;
  *(uint32_t*)0x200000000238 = 2;
  *(uint32_t*)0x20000000023c = 8;
  *(uint32_t*)0x200000000240 = 0;
  *(uint32_t*)0x200000000244 = 0;
  *(uint64_t*)0x200000000088 = 0x48;
  *(uint64_t*)0x200000005858 = 1;
  *(uint64_t*)0x200000005860 = 0;
  *(uint64_t*)0x200000005868 = 0;
  *(uint32_t*)0x200000005870 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000005840ul, /*f=*/0ul);
  //  socket$nl_route arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_nl_route
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[3] = res;
  //  sendmsg$nl_route_sched arguments: [
  //    fd: sock_nl_route (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] {
  //      msghdr_netlink[netlink_msg_route_sched] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_route_sched]] {
  //          iovec[in, netlink_msg_route_sched] {
  //            addr: ptr[in, netlink_msg_route_sched] {
  //              union netlink_msg_route_sched {
  //                newtfilter: netlink_msg_t[const[RTM_NEWTFILTER, int16],
  //                tcmsg[AF_UNSPEC], filter_policy] {
  //                  len: len = 0x70 (4 bytes)
  //                  type: const = 0x28 (2 bytes)
  //                  flags: netlink_msg_flags = 0xd27 (2 bytes)
  //                  seq: int32 = 0x0 (4 bytes)
  //                  pid: int32 = 0x0 (4 bytes)
  //                  payload: tcmsg[AF_UNSPEC] {
  //                    family: const = 0x0 (1 bytes)
  //                    tcm__pad1: const = 0x0 (1 bytes)
  //                    tcm__pad2: const = 0x0 (2 bytes)
  //                    ifindex: ifindex (resource)
  //                    tcm_handle: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x10 (2 bytes)
  //                      major: tcm_handle_offsets = 0x0 (2 bytes)
  //                    }
  //                    tcm_parent: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xe40ca4f7c51e5624 (2
  //                      bytes) major: tcm_handle_offsets = 0x0 (2 bytes)
  //                    }
  //                    tcm_info: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xfff1 (2 bytes)
  //                      major: tcm_handle_offsets = 0xb (2 bytes)
  //                    }
  //                  }
  //                  attrs: array[filter_policy] {
  //                    union filter_policy {
  //                      filter_kind_options: union filter_kind_options {
  //                        f_cgroup: tca_kind_options_t["cgroup",
  //                        array[cgroup_policy]] {
  //                          TCA_KIND: nlattr_t[const[TCA_KIND, int16],
  //                          string["cgroup"]] {
  //                            nla_len: offsetof = 0xb (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {63 67 72 6f 75 70 00} (length
  //                            0x7) size: buffer: {} (length 0x0) pad = 0x0 (1
  //                            bytes)
  //                          }
  //                          TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16],
  //                          array[cgroup_policy]] {
  //                            nla_len: offsetof = 0x38 (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: array[cgroup_policy] {
  //                              union cgroup_policy {
  //                                TCA_CGROUP_ACT:
  //                                nlattr_t[const[TCA_CGROUP_ACT, int16],
  //                                array[tca_actions]] {
  //                                  nla_len: offsetof = 0x34 (2 bytes)
  //                                  nla_type: const = 0x1 (2 bytes)
  //                                  payload: array[tca_actions] {
  //                                    union tca_actions {
  //                                      m_skbmod:
  //                                      nlattr_tt[int16:14[0:TCA_ACT_MAX_PRIO],
  //                                      0, 0, tcf_action_policy["skbmod",
  //                                      skbmod_policy]] {
  //                                        nla_len: offsetof = 0x30 (2 bytes)
  //                                        nla_type: int16 = 0x16 (1 bytes)
  //                                        NLA_F_NET_BYTEORDER: const = 0x0 (0
  //                                        bytes) NLA_F_NESTED: const = 0x0 (1
  //                                        bytes) payload:
  //                                        tcf_action_policy["skbmod",
  //                                        skbmod_policy] {
  //                                          TCA_ACT_KIND:
  //                                          nlattr_t[const[TCA_ACT_KIND,
  //                                          int16], string["skbmod"]] {
  //                                            nla_len: offsetof = 0xb (2
  //                                            bytes) nla_type: const = 0x1 (2
  //                                            bytes) payload: buffer: {73 6b
  //                                            62 6d 6f 64 00} (length 0x7)
  //                                            size: buffer: {} (length 0x0)
  //                                            pad = 0x0 (1 bytes)
  //                                          }
  //                                          TCA_ACT_OPTIONS:
  //                                          nlattr_tt[const[TCA_ACT_OPTIONS,
  //                                          int16:14], 0, 1,
  //                                          array[skbmod_policy]] {
  //                                            nla_len: offsetof = 0x4 (2
  //                                            bytes) nla_type: const = 0x2 (1
  //                                            bytes) NLA_F_NET_BYTEORDER:
  //                                            const = 0x0 (0 bytes)
  //                                            NLA_F_NESTED: const = 0x1 (1
  //                                            bytes) payload:
  //                                            array[skbmod_policy] {
  //                                            }
  //                                            size: buffer: {} (length 0x0)
  //                                          }
  //                                          TCA_ACT_COOKIE:
  //                                          nlattr_t[const[TCA_ACT_COOKIE,
  //                                          int16], array[int8]] {
  //                                            nla_len: offsetof = 0x4 (2
  //                                            bytes) nla_type: const = 0x6 (2
  //                                            bytes) payload: buffer: {}
  //                                            (length 0x0) size: buffer: {}
  //                                            (length 0x0)
  //                                          }
  //                                          TCA_ACT_FLAGS:
  //                                          nlattr_t[const[TCA_ACT_FLAGS,
  //                                          int16],
  //                                          nla_bitfield32[tcf_action_policy_flags]]
  //                                          {
  //                                            nla_len: offsetof = 0xc (2
  //                                            bytes) nla_type: const = 0x7 (2
  //                                            bytes) payload:
  //                                            nla_bitfield32[tcf_action_policy_flags]
  //                                            {
  //                                              value: tcf_action_policy_flags
  //                                              = 0x1 (4 bytes) selector:
  //                                              tcf_action_policy_flags = 0x0
  //                                              (4 bytes)
  //                                            }
  //                                            size: buffer: {} (length 0x0)
  //                                          }
  //                                          TCA_ACT_HW_STATS:
  //                                          nlattr_t[const[TCA_ACT_HW_STATS,
  //                                          int16],
  //                                          nla_bitfield32[tcf_action_policy_hw_stats]]
  //                                          {
  //                                            nla_len: offsetof = 0xc (2
  //                                            bytes) nla_type: const = 0x8 (2
  //                                            bytes) payload:
  //                                            nla_bitfield32[tcf_action_policy_hw_stats]
  //                                            {
  //                                              value:
  //                                              tcf_action_policy_hw_stats =
  //                                              0x0 (4 bytes) selector:
  //                                              tcf_action_policy_hw_stats =
  //                                              0x1 (4 bytes)
  //                                            }
  //                                            size: buffer: {} (length 0x0)
  //                                          }
  //                                        }
  //                                        size: buffer: {} (length 0x0)
  //                                      }
  //                                    }
  //                                  }
  //                                  size: buffer: {} (length 0x0)
  //                                }
  //                              }
  //                            }
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                    }
  //                    union filter_policy {
  //                      TCA_RATE: nlattr_t[const[TCA_RATE, int16],
  //                      tc_estimator] {
  //                        nla_len: offsetof = 0x6 (2 bytes)
  //                        nla_type: const = 0x5 (2 bytes)
  //                        payload: tc_estimator {
  //                          interval: int8 = 0x2 (1 bytes)
  //                          ewma_log: int8 = 0x2 (1 bytes)
  //                        }
  //                        size: buffer: {} (length 0x0)
  //                        pad = 0x0 (2 bytes)
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x70 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x4810 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000140 = 0;
  *(uint32_t*)0x200000000148 = 0;
  *(uint64_t*)0x200000000150 = 0x2000000001c0;
  *(uint64_t*)0x2000000001c0 = 0x2000000026c0;
  *(uint32_t*)0x2000000026c0 = 0x70;
  *(uint16_t*)0x2000000026c4 = 0x28;
  *(uint16_t*)0x2000000026c6 = 0xd27;
  *(uint32_t*)0x2000000026c8 = 0;
  *(uint32_t*)0x2000000026cc = 0;
  *(uint8_t*)0x2000000026d0 = 0;
  *(uint8_t*)0x2000000026d1 = 0;
  *(uint16_t*)0x2000000026d2 = 0;
  *(uint32_t*)0x2000000026d4 = r[2];
  *(uint16_t*)0x2000000026d8 = 0x10;
  *(uint16_t*)0x2000000026da = 0;
  *(uint16_t*)0x2000000026dc = 0x5624;
  *(uint16_t*)0x2000000026de = 0;
  *(uint16_t*)0x2000000026e0 = 0xfff1;
  *(uint16_t*)0x2000000026e2 = 0xb;
  *(uint16_t*)0x2000000026e4 = 0xb;
  *(uint16_t*)0x2000000026e6 = 1;
  memcpy((void*)0x2000000026e8, "cgroup\000", 7);
  *(uint16_t*)0x2000000026f0 = 0x38;
  *(uint16_t*)0x2000000026f2 = 2;
  *(uint16_t*)0x2000000026f4 = 0x34;
  *(uint16_t*)0x2000000026f6 = 1;
  *(uint16_t*)0x2000000026f8 = 0x30;
  STORE_BY_BITMASK(uint16_t, , 0x2000000026fa, 0x16, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000000026fb, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000000026fb, 0, 7, 1);
  *(uint16_t*)0x2000000026fc = 0xb;
  *(uint16_t*)0x2000000026fe = 1;
  memcpy((void*)0x200000002700, "skbmod\000", 7);
  *(uint16_t*)0x200000002708 = 4;
  STORE_BY_BITMASK(uint16_t, , 0x20000000270a, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000000270b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000000270b, 1, 7, 1);
  *(uint16_t*)0x20000000270c = 4;
  *(uint16_t*)0x20000000270e = 6;
  *(uint16_t*)0x200000002710 = 0xc;
  *(uint16_t*)0x200000002712 = 7;
  *(uint32_t*)0x200000002714 = 1;
  *(uint32_t*)0x200000002718 = 0;
  *(uint16_t*)0x20000000271c = 0xc;
  *(uint16_t*)0x20000000271e = 8;
  *(uint32_t*)0x200000002720 = 0;
  *(uint32_t*)0x200000002724 = 1;
  *(uint16_t*)0x200000002728 = 6;
  *(uint16_t*)0x20000000272a = 5;
  *(uint8_t*)0x20000000272c = 2;
  *(uint8_t*)0x20000000272d = 2;
  *(uint64_t*)0x2000000001c8 = 0x70;
  *(uint64_t*)0x200000000158 = 1;
  *(uint64_t*)0x200000000160 = 0;
  *(uint64_t*)0x200000000168 = 0;
  *(uint32_t*)0x200000000170 = 0x4810;
  syscall(__NR_sendmsg, /*fd=*/r[3], /*msg=*/0x200000000140ul, /*f=*/0ul);
}
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);
  const char* reason;
  (void)reason;
  do_sandbox_none();
  return 0;
}