// https://syzkaller.appspot.com/bug?id=d4463a2d3563cdc5823b22d4e115144d0af7e88c
// 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 <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.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>

#ifndef __NR_statmount
#define __NR_statmount 457
#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;
}

#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;
}

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 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 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();
      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[3] = {0xffffffffffffffff, 0x0, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  socket$nl_generic arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x10 (4 bytes)
  //  ]
  //  returns sock_nl_generic
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  if (res != -1)
    r[0] = res;
  //  syz_genetlink_get_family_id$auto_nfsd arguments: [
  //    name: ptr[in, buffer] {
  //      buffer: {6e 66 73 64 00} (length 0x5)
  //    }
  //    fd: sock_nl_generic (resource)
  //  ]
  //  returns genl_nfsd_family_id$auto
  memcpy((void*)0x200000000180, "nfsd\000", 5);
  res = -1;
  res = syz_genetlink_get_family_id(/*name=*/0x200000000180, /*fd=*/-1);
  if (res != -1)
    r[1] = res;
  //  sendmsg$auto_NFSD_CMD_LISTENER_SET arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[genl_nfsd_family_id$auto,
  //    genlmsghdr_t[NFSD_CMD_LISTENER_SET],
  //    nfsd_listener_set_nl_policy_netlink$auto]]] {
  //      msghdr_netlink[netlink_msg_t[genl_nfsd_family_id$auto,
  //      genlmsghdr_t[NFSD_CMD_LISTENER_SET],
  //      nfsd_listener_set_nl_policy_netlink$auto]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[genl_nfsd_family_id$auto,
  //        genlmsghdr_t[NFSD_CMD_LISTENER_SET],
  //        nfsd_listener_set_nl_policy_netlink$auto]]] {
  //          iovec[in, netlink_msg_t[genl_nfsd_family_id$auto,
  //          genlmsghdr_t[NFSD_CMD_LISTENER_SET],
  //          nfsd_listener_set_nl_policy_netlink$auto]] {
  //            addr: ptr[in, netlink_msg_t[genl_nfsd_family_id$auto,
  //            genlmsghdr_t[NFSD_CMD_LISTENER_SET],
  //            nfsd_listener_set_nl_policy_netlink$auto]] {
  //              netlink_msg_t[genl_nfsd_family_id$auto,
  //              genlmsghdr_t[NFSD_CMD_LISTENER_SET],
  //              nfsd_listener_set_nl_policy_netlink$auto] {
  //                len: len = 0x24 (4 bytes)
  //                type: genl_nfsd_family_id$auto (resource)
  //                flags: netlink_msg_flags = 0x1 (2 bytes)
  //                seq: int32 = 0x70bd26 (4 bytes)
  //                pid: int32 = 0x25dfdbfb (4 bytes)
  //                payload: genlmsghdr_t[NFSD_CMD_LISTENER_SET] {
  //                  cmd: const = 0x6 (1 bytes)
  //                  version: const = 0x0 (1 bytes)
  //                  reserved: const = 0x0 (2 bytes)
  //                }
  //                attrs: array[nfsd_listener_set_nl_policy_netlink$auto] {
  //                  union nfsd_listener_set_nl_policy_netlink$auto {
  //                    NFSD_A_SERVER_SOCK_ADDR:
  //                    nlattr_tt[const[NFSD_A_SERVER_SOCK_ADDR, int16:14], 0,
  //                    1, array[nfsd_sock_nl_policy_netlink$auto]] {
  //                      nla_len: offsetof = 0x10 (2 bytes)
  //                      nla_type: const = 0x1 (1 bytes)
  //                      NLA_F_NET_BYTEORDER: const = 0x0 (0 bytes)
  //                      NLA_F_NESTED: const = 0x1 (1 bytes)
  //                      payload: array[nfsd_sock_nl_policy_netlink$auto] {
  //                        union nfsd_sock_nl_policy_netlink$auto {
  //                          NFSD_A_SOCK_ADDR: nlattr_t[const[NFSD_A_SOCK_ADDR,
  //                          int16], array[int8]] {
  //                            nla_len: offsetof = 0x4 (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {} (length 0x0)
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                        union nfsd_sock_nl_policy_netlink$auto {
  //                          NFSD_A_SOCK_TRANSPORT_NAME:
  //                          nlattr_t[const[NFSD_A_SOCK_TRANSPORT_NAME, int16],
  //                          string] {
  //                            nla_len: offsetof = 0x6 (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: buffer: {2d 00} (length 0x2)
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                      size: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x24 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x1 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000003140 = 0;
  *(uint32_t*)0x200000003148 = 0;
  *(uint64_t*)0x200000003150 = 0x200000003100;
  *(uint64_t*)0x200000003100 = 0x2000000001c0;
  *(uint32_t*)0x2000000001c0 = 0x24;
  *(uint16_t*)0x2000000001c4 = r[1];
  *(uint16_t*)0x2000000001c6 = 1;
  *(uint32_t*)0x2000000001c8 = 0x70bd26;
  *(uint32_t*)0x2000000001cc = 0x25dfdbfb;
  *(uint8_t*)0x2000000001d0 = 6;
  *(uint8_t*)0x2000000001d1 = 0;
  *(uint16_t*)0x2000000001d2 = 0;
  *(uint16_t*)0x2000000001d4 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x2000000001d6, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000000001d7, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000000001d7, 1, 7, 1);
  *(uint16_t*)0x2000000001d8 = 4;
  *(uint16_t*)0x2000000001da = 1;
  *(uint16_t*)0x2000000001dc = 6;
  *(uint16_t*)0x2000000001de = 2;
  memcpy((void*)0x2000000001e0, "-\000", 2);
  *(uint64_t*)0x200000003108 = 0x24;
  *(uint64_t*)0x200000003158 = 1;
  *(uint64_t*)0x200000003160 = 0;
  *(uint64_t*)0x200000003168 = 0;
  *(uint32_t*)0x200000003170 = 1;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000003140ul, /*f=*/0ul);
  //  mmap$auto arguments: [
  //    addr: intptr = 0x0 (8 bytes)
  //    len: intptr = 0x4020009 (8 bytes)
  //    prot: intptr = 0xdf (8 bytes)
  //    flags: intptr = 0xeb1 (8 bytes)
  //    fd: fd (resource)
  //    off: intptr = 0x8000 (8 bytes)
  //  ]
  syscall(__NR_mmap, /*addr=*/0ul, /*len=*/0x4020009ul, /*prot=*/0xdful,
          /*flags=*/0xeb1ul, /*fd=*/0x401, /*off=*/0x8000ul);
  //  statmount$auto arguments: [
  //    req: nil
  //    buf: ptr[inout, statmount$auto] {
  //      statmount$auto {
  //        size: int32 = 0x8 (4 bytes)
  //        mnt_opts: int32 = 0x1 (4 bytes)
  //        mask: int64 = 0x401bf (8 bytes)
  //        sb_dev_major: int32 = 0x7352 (4 bytes)
  //        sb_dev_minor: int32 = 0x1 (4 bytes)
  //        sb_magic: int64 = 0x8000 (8 bytes)
  //        sb_flags: int32 = 0x1ffe0 (4 bytes)
  //        fs_type: int32 = 0x1 (4 bytes)
  //        mnt_id: int64 = 0x2 (8 bytes)
  //        mnt_parent_id: int64 = 0x1 (8 bytes)
  //        mnt_id_old: int32 = 0x9 (4 bytes)
  //        mnt_parent_id_old: int32 = 0x3 (4 bytes)
  //        mnt_attr: int64 = 0x5 (8 bytes)
  //        mnt_propagation: int64 = 0x8 (8 bytes)
  //        mnt_peer_group: int64 = 0x3002 (8 bytes)
  //        mnt_master: int64 = 0x9 (8 bytes)
  //        propagate_from: int64 = 0xb (8 bytes)
  //        mnt_root: int32 = 0x80010002 (4 bytes)
  //        mnt_point: int32 = 0x80 (4 bytes)
  //        mnt_ns_id: int64 = 0xd8f9 (8 bytes)
  //        fs_subtype: int32 = 0x0 (4 bytes)
  //        sb_source: int32 = 0x7 (4 bytes)
  //        opt_num: int32 = 0x2 (4 bytes)
  //        opt_array: int32 = 0x203 (4 bytes)
  //        opt_sec_num: int32 = 0x400 (4 bytes)
  //        opt_sec_array: int32 = 0x84 (4 bytes)
  //        supported_mask: int64 = 0x0 (8 bytes)
  //        mnt_uidmap_num: int32 = 0x0 (4 bytes)
  //        mnt_uidmap: int32 = 0x0 (4 bytes)
  //        mnt_gidmap_num: int32 = 0x0 (4 bytes)
  //        mnt_gidmap: int32 = 0x0 (4 bytes)
  //        __spare2: array[int64] {
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x40000 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x4004 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x2 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //        }
  //        str: buffer: {} (length 0x0)
  //      }
  //    }
  //    bufsize: intptr = 0x1fe (8 bytes)
  //    flags: int32 = 0xd (4 bytes)
  //  ]
  *(uint32_t*)0x200000000180 = 8;
  *(uint32_t*)0x200000000184 = 1;
  *(uint64_t*)0x200000000188 = 0x401bf;
  *(uint32_t*)0x200000000190 = 0x7352;
  *(uint32_t*)0x200000000194 = 1;
  *(uint64_t*)0x200000000198 = 0x8000;
  *(uint32_t*)0x2000000001a0 = 0x1ffe0;
  *(uint32_t*)0x2000000001a4 = 1;
  *(uint64_t*)0x2000000001a8 = 2;
  *(uint64_t*)0x2000000001b0 = 1;
  *(uint32_t*)0x2000000001b8 = 9;
  *(uint32_t*)0x2000000001bc = 3;
  *(uint64_t*)0x2000000001c0 = 5;
  *(uint64_t*)0x2000000001c8 = 8;
  *(uint64_t*)0x2000000001d0 = 0x3002;
  *(uint64_t*)0x2000000001d8 = 9;
  *(uint64_t*)0x2000000001e0 = 0xb;
  *(uint32_t*)0x2000000001e8 = 0x80010002;
  *(uint32_t*)0x2000000001ec = 0x80;
  *(uint64_t*)0x2000000001f0 = 0xd8f9;
  *(uint32_t*)0x2000000001f8 = 0;
  *(uint32_t*)0x2000000001fc = 7;
  *(uint32_t*)0x200000000200 = 2;
  *(uint32_t*)0x200000000204 = 0x203;
  *(uint32_t*)0x200000000208 = 0x400;
  *(uint32_t*)0x20000000020c = 0x84;
  *(uint64_t*)0x200000000210 = 0;
  *(uint32_t*)0x200000000218 = 0;
  *(uint32_t*)0x20000000021c = 0;
  *(uint32_t*)0x200000000220 = 0;
  *(uint32_t*)0x200000000224 = 0;
  *(uint64_t*)0x200000000228 = 0;
  *(uint64_t*)0x200000000230 = 0;
  *(uint64_t*)0x200000000238 = 0;
  *(uint64_t*)0x200000000240 = 0;
  *(uint64_t*)0x200000000248 = 0;
  *(uint64_t*)0x200000000250 = 0;
  *(uint64_t*)0x200000000258 = 0;
  *(uint64_t*)0x200000000260 = 0;
  *(uint64_t*)0x200000000268 = 0;
  *(uint64_t*)0x200000000270 = 0;
  *(uint64_t*)0x200000000278 = 0;
  *(uint64_t*)0x200000000280 = 0;
  *(uint64_t*)0x200000000288 = 0x40000;
  *(uint64_t*)0x200000000290 = 0;
  *(uint64_t*)0x200000000298 = 0x4004;
  *(uint64_t*)0x2000000002a0 = 0;
  *(uint64_t*)0x2000000002a8 = 0;
  *(uint64_t*)0x2000000002b0 = 0;
  *(uint64_t*)0x2000000002b8 = 0;
  *(uint64_t*)0x2000000002c0 = 0;
  *(uint64_t*)0x2000000002c8 = 0;
  *(uint64_t*)0x2000000002d0 = 0;
  *(uint64_t*)0x2000000002d8 = 0;
  *(uint64_t*)0x2000000002e0 = 0;
  *(uint64_t*)0x2000000002e8 = 0;
  *(uint64_t*)0x2000000002f0 = 0;
  *(uint64_t*)0x2000000002f8 = 0;
  *(uint64_t*)0x200000000300 = 0;
  *(uint64_t*)0x200000000308 = 0;
  *(uint64_t*)0x200000000310 = 0;
  *(uint64_t*)0x200000000318 = 0;
  *(uint64_t*)0x200000000320 = 0;
  *(uint64_t*)0x200000000328 = 0;
  *(uint64_t*)0x200000000330 = 0;
  *(uint64_t*)0x200000000338 = 2;
  *(uint64_t*)0x200000000340 = 0;
  *(uint64_t*)0x200000000348 = 0;
  *(uint64_t*)0x200000000350 = 0;
  *(uint64_t*)0x200000000358 = 0;
  *(uint64_t*)0x200000000360 = 0;
  *(uint64_t*)0x200000000368 = 0;
  *(uint64_t*)0x200000000370 = 0;
  *(uint64_t*)0x200000000378 = 0;
  syscall(__NR_statmount, /*req=*/0ul, /*buf=*/0x200000000180ul,
          /*bufsize=*/0x1feul, /*flags=*/0xd);
  //  sendmsg$auto_OVS_VPORT_CMD_DEL arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[genl_ovs_vport_family_id$auto,
  //    genlmsghdr_t[OVS_VPORT_CMD_DEL], vport_policy_datapath$auto]]] {
  //      msghdr_netlink[netlink_msg_t[genl_ovs_vport_family_id$auto,
  //      genlmsghdr_t[OVS_VPORT_CMD_DEL], vport_policy_datapath$auto]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[genl_ovs_vport_family_id$auto,
  //        genlmsghdr_t[OVS_VPORT_CMD_DEL], vport_policy_datapath$auto]]] {
  //          iovec[in, netlink_msg_t[genl_ovs_vport_family_id$auto,
  //          genlmsghdr_t[OVS_VPORT_CMD_DEL], vport_policy_datapath$auto]] {
  //            addr: ptr[inout, array[ANYUNION]] {
  //              array[ANYUNION] {
  //                union ANYUNION {
  //                  ANYBLOB: buffer: {3c 00 00 00} (length 0x4)
  //                }
  //                union ANYUNION {
  //                  ANYBLOB: buffer: {10 00 2d} (length 0x3)
  //                }
  //              }
  //            }
  //            len: len = 0x3c (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x8000 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x24008000 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000200 = 0;
  *(uint32_t*)0x200000000208 = 0;
  *(uint64_t*)0x200000000210 = 0x2000000001c0;
  *(uint64_t*)0x2000000001c0 = 0x200000000180;
  memcpy((void*)0x200000000180, "<\000\000\000", 4);
  memcpy((void*)0x200000000184, "\x10\x00\x2d", 3);
  *(uint64_t*)0x2000000001c8 = 0x3c;
  *(uint64_t*)0x200000000218 = 1;
  *(uint64_t*)0x200000000220 = 0;
  *(uint64_t*)0x200000000228 = 0;
  *(uint32_t*)0x200000000230 = 0x8000;
  syscall(__NR_sendmsg, /*fd=*/(intptr_t)-1, /*msg=*/0x200000000200ul,
          /*f=MSG_ZEROCOPY|MSG_FASTOPEN|MSG_MORE*/ 0x24008000ul);
  //  sendmsg$auto_NL80211_CMD_GET_REG arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[genl_nl80211_family_id$auto,
  //    genlmsghdr_t[NL80211_CMD_GET_REG], nl80211_policy_nl80211$auto]]] {
  //      msghdr_netlink[netlink_msg_t[genl_nl80211_family_id$auto,
  //      genlmsghdr_t[NL80211_CMD_GET_REG], nl80211_policy_nl80211$auto]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[genl_nl80211_family_id$auto,
  //        genlmsghdr_t[NL80211_CMD_GET_REG], nl80211_policy_nl80211$auto]]] {
  //          iovec[in, netlink_msg_t[genl_nl80211_family_id$auto,
  //          genlmsghdr_t[NL80211_CMD_GET_REG], nl80211_policy_nl80211$auto]] {
  //            addr: ptr[inout, array[ANYUNION]] {
  //              array[ANYUNION] {
  //              }
  //            }
  //            len: len = 0x1ac (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x40000 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000240 = 0;
  *(uint32_t*)0x200000000248 = 0;
  *(uint64_t*)0x200000000250 = 0x200000000280;
  *(uint64_t*)0x200000000280 = 0x200000000180;
  *(uint64_t*)0x200000000288 = 0x1ac;
  *(uint64_t*)0x200000000258 = 1;
  *(uint64_t*)0x200000000260 = 0;
  *(uint64_t*)0x200000000268 = 0;
  *(uint32_t*)0x200000000270 = 0;
  syscall(__NR_sendmsg, /*fd=*/(intptr_t)-1, /*msg=*/0x200000000240ul,
          /*f=MSG_BATCH*/ 0x40000ul);
  //  socket arguments: [
  //    domain: socket_domain = 0x10 (8 bytes)
  //    type: socket_type = 0x2 (8 bytes)
  //    proto: int32 = 0x0 (4 bytes)
  //  ]
  //  returns sock
  res = syscall(__NR_socket, /*domain=AF_NETLINK*/ 0x10ul,
                /*type=SOCK_DGRAM*/ 2ul, /*proto=*/0);
  if (res != -1)
    r[2] = res;
  //  sendmmsg$auto arguments: [
  //    fd: fd (resource)
  //    mmsg: ptr[inout, mmsghdr$auto] {
  //      mmsghdr$auto {
  //        msg_hdr: user_msghdr$auto {
  //          msg_name: nil
  //          msg_namelen: int32 = 0xfe (4 bytes)
  //          pad = 0x0 (4 bytes)
  //          msg_iov: ptr[inout, iovec$auto] {
  //            iovec$auto {
  //              iov_base: nil
  //              iov_len: intptr = 0xfc2 (8 bytes)
  //            }
  //          }
  //          msg_iovlen: intptr = 0x2 (8 bytes)
  //          msg_control: nil
  //          msg_controllen: intptr = 0x7 (8 bytes)
  //          msg_flags: int32 = 0xa505 (4 bytes)
  //          pad = 0x0 (4 bytes)
  //        }
  //        msg_len: int32 = 0x800 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    vlen: int32 = 0x7 (4 bytes)
  //    flags: int32 = 0x4008 (4 bytes)
  //  ]
  *(uint64_t*)0x200000000200 = 0;
  *(uint32_t*)0x200000000208 = 0xfe;
  *(uint64_t*)0x200000000210 = 0x200000000100;
  *(uint64_t*)0x200000000100 = 0;
  *(uint64_t*)0x200000000108 = 0xfc2;
  *(uint64_t*)0x200000000218 = 2;
  *(uint64_t*)0x200000000220 = 0;
  *(uint64_t*)0x200000000228 = 7;
  *(uint32_t*)0x200000000230 = 0xa505;
  *(uint32_t*)0x200000000238 = 0x800;
  syscall(__NR_sendmmsg, /*fd=*/r[2], /*mmsg=*/0x200000000200ul, /*vlen=*/7,
          /*flags=*/0x4008);
}
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;
  for (procid = 0; procid < 4; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}