// https://syzkaller.appspot.com/bug?id=29f52d4baeec7d90c9fd0fb991721f3cad42a4d5
// 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 <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.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/uio.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/capability.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/loop.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_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

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

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

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

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

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

static 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);
}

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 void netlink_nest(struct nlmsg* nlmsg, int typ)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_type = typ;
  nlmsg->pos += sizeof(*attr);
  nlmsg->nested[nlmsg->nesting++] = attr;
}

static void netlink_done(struct nlmsg* nlmsg)
{
  struct nlattr* attr = nlmsg->nested[--nlmsg->nesting];
  attr->nla_len = nlmsg->pos - (char*)attr;
}

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 int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset,
                            unsigned int total_len)
{
  struct nlmsghdr* hdr = (struct nlmsghdr*)(nlmsg->buf + offset);
  if (offset == total_len || offset + hdr->nlmsg_len > total_len)
    return -1;
  return hdr->nlmsg_len;
}

static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type,
                                    const char* name, bool up)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  if (name)
    netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name));
  netlink_nest(nlmsg, IFLA_LINKINFO);
  netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type));
}

static void netlink_add_device(struct nlmsg* nlmsg, int sock, const char* type,
                               const char* name)
{
  netlink_add_device_impl(nlmsg, type, name, false);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_veth(struct nlmsg* nlmsg, int sock, const char* name,
                             const char* peer)
{
  netlink_add_device_impl(nlmsg, "veth", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_nest(nlmsg, VETH_INFO_PEER);
  nlmsg->pos += sizeof(struct ifinfomsg);
  netlink_attr(nlmsg, IFLA_IFNAME, peer, strlen(peer));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_xfrm(struct nlmsg* nlmsg, int sock, const char* name)
{
  netlink_add_device_impl(nlmsg, "xfrm", name, true);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  int if_id = 1;
  netlink_attr(nlmsg, 2, &if_id, sizeof(if_id));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_hsr(struct nlmsg* nlmsg, int sock, const char* name,
                            const char* slave1, const char* slave2)
{
  netlink_add_device_impl(nlmsg, "hsr", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  int ifindex1 = if_nametoindex(slave1);
  netlink_attr(nlmsg, IFLA_HSR_SLAVE1, &ifindex1, sizeof(ifindex1));
  int ifindex2 = if_nametoindex(slave2);
  netlink_attr(nlmsg, IFLA_HSR_SLAVE2, &ifindex2, sizeof(ifindex2));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_linked(struct nlmsg* nlmsg, int sock, const char* type,
                               const char* name, const char* link)
{
  netlink_add_device_impl(nlmsg, type, name, false);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_vlan(struct nlmsg* nlmsg, int sock, const char* name,
                             const char* link, uint16_t id, uint16_t proto)
{
  netlink_add_device_impl(nlmsg, "vlan", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_VLAN_ID, &id, sizeof(id));
  netlink_attr(nlmsg, IFLA_VLAN_PROTOCOL, &proto, sizeof(proto));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_macvlan(struct nlmsg* nlmsg, int sock, const char* name,
                                const char* link)
{
  netlink_add_device_impl(nlmsg, "macvlan", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  uint32_t mode = MACVLAN_MODE_BRIDGE;
  netlink_attr(nlmsg, IFLA_MACVLAN_MODE, &mode, sizeof(mode));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_geneve(struct nlmsg* nlmsg, int sock, const char* name,
                               uint32_t vni, struct in_addr* addr4,
                               struct in6_addr* addr6)
{
  netlink_add_device_impl(nlmsg, "geneve", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_GENEVE_ID, &vni, sizeof(vni));
  if (addr4)
    netlink_attr(nlmsg, IFLA_GENEVE_REMOTE, addr4, sizeof(*addr4));
  if (addr6)
    netlink_attr(nlmsg, IFLA_GENEVE_REMOTE6, addr6, sizeof(*addr6));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

#define IFLA_IPVLAN_FLAGS 2
#define IPVLAN_MODE_L3S 2
#undef IPVLAN_F_VEPA
#define IPVLAN_F_VEPA 2

static void netlink_add_ipvlan(struct nlmsg* nlmsg, int sock, const char* name,
                               const char* link, uint16_t mode, uint16_t flags)
{
  netlink_add_device_impl(nlmsg, "ipvlan", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_IPVLAN_MODE, &mode, sizeof(mode));
  netlink_attr(nlmsg, IFLA_IPVLAN_FLAGS, &flags, sizeof(flags));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

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);
}

#define DEVLINK_FAMILY_NAME "devlink"

#define DEVLINK_CMD_PORT_GET 5
#define DEVLINK_ATTR_BUS_NAME 1
#define DEVLINK_ATTR_DEV_NAME 2
#define DEVLINK_ATTR_NETDEV_NAME 7

static struct nlmsg nlmsg2;

static void initialize_devlink_ports(const char* bus_name, const char* dev_name,
                                     const char* netdev_prefix)
{
  struct genlmsghdr genlhdr;
  int len, total_len, id, err, offset;
  uint16_t netdev_index;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock == -1)
    exit(1);
  int rtsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (rtsock == -1)
    exit(1);
  id = netlink_query_family_id(&nlmsg, sock, DEVLINK_FAMILY_NAME, true);
  if (id == -1)
    goto error;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = DEVLINK_CMD_PORT_GET;
  netlink_init(&nlmsg, id, NLM_F_DUMP, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1);
  netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1);
  err = netlink_send_ext(&nlmsg, sock, id, &total_len, true);
  if (err < 0) {
    goto error;
  }
  offset = 0;
  netdev_index = 0;
  while ((len = netlink_next_msg(&nlmsg, offset, total_len)) != -1) {
    struct nlattr* attr = (struct nlattr*)(nlmsg.buf + offset + NLMSG_HDRLEN +
                                           NLMSG_ALIGN(sizeof(genlhdr)));
    for (; (char*)attr < nlmsg.buf + offset + len;
         attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
      if (attr->nla_type == DEVLINK_ATTR_NETDEV_NAME) {
        char* port_name;
        char netdev_name[IFNAMSIZ];
        port_name = (char*)(attr + 1);
        snprintf(netdev_name, sizeof(netdev_name), "%s%d", netdev_prefix,
                 netdev_index);
        netlink_device_change(&nlmsg2, rtsock, port_name, true, 0, 0, 0,
                              netdev_name);
        break;
      }
    }
    offset += len;
    netdev_index++;
  }
error:
  close(rtsock);
  close(sock);
}

#define DEV_IPV4 "172.20.20.%d"
#define DEV_IPV6 "fe80::%02x"
#define DEV_MAC 0x00aaaaaaaaaa

static void netdevsim_add(unsigned int addr, unsigned int port_count)
{
  write_file("/sys/bus/netdevsim/del_device", "%u", addr);
  if (write_file("/sys/bus/netdevsim/new_device", "%u %u", addr, port_count)) {
    char buf[32];
    snprintf(buf, sizeof(buf), "netdevsim%d", addr);
    initialize_devlink_ports("netdevsim", buf, "netdevsim");
  }
}

#define WG_GENL_NAME "wireguard"
enum wg_cmd {
  WG_CMD_GET_DEVICE,
  WG_CMD_SET_DEVICE,
};
enum wgdevice_attribute {
  WGDEVICE_A_UNSPEC,
  WGDEVICE_A_IFINDEX,
  WGDEVICE_A_IFNAME,
  WGDEVICE_A_PRIVATE_KEY,
  WGDEVICE_A_PUBLIC_KEY,
  WGDEVICE_A_FLAGS,
  WGDEVICE_A_LISTEN_PORT,
  WGDEVICE_A_FWMARK,
  WGDEVICE_A_PEERS,
};
enum wgpeer_attribute {
  WGPEER_A_UNSPEC,
  WGPEER_A_PUBLIC_KEY,
  WGPEER_A_PRESHARED_KEY,
  WGPEER_A_FLAGS,
  WGPEER_A_ENDPOINT,
  WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
  WGPEER_A_LAST_HANDSHAKE_TIME,
  WGPEER_A_RX_BYTES,
  WGPEER_A_TX_BYTES,
  WGPEER_A_ALLOWEDIPS,
  WGPEER_A_PROTOCOL_VERSION,
};
enum wgallowedip_attribute {
  WGALLOWEDIP_A_UNSPEC,
  WGALLOWEDIP_A_FAMILY,
  WGALLOWEDIP_A_IPADDR,
  WGALLOWEDIP_A_CIDR_MASK,
};

static void netlink_wireguard_setup(void)
{
  const char ifname_a[] = "wg0";
  const char ifname_b[] = "wg1";
  const char ifname_c[] = "wg2";
  const char private_a[] =
      "\xa0\x5c\xa8\x4f\x6c\x9c\x8e\x38\x53\xe2\xfd\x7a\x70\xae\x0f\xb2\x0f\xa1"
      "\x52\x60\x0c\xb0\x08\x45\x17\x4f\x08\x07\x6f\x8d\x78\x43";
  const char private_b[] =
      "\xb0\x80\x73\xe8\xd4\x4e\x91\xe3\xda\x92\x2c\x22\x43\x82\x44\xbb\x88\x5c"
      "\x69\xe2\x69\xc8\xe9\xd8\x35\xb1\x14\x29\x3a\x4d\xdc\x6e";
  const char private_c[] =
      "\xa0\xcb\x87\x9a\x47\xf5\xbc\x64\x4c\x0e\x69\x3f\xa6\xd0\x31\xc7\x4a\x15"
      "\x53\xb6\xe9\x01\xb9\xff\x2f\x51\x8c\x78\x04\x2f\xb5\x42";
  const char public_a[] =
      "\x97\x5c\x9d\x81\xc9\x83\xc8\x20\x9e\xe7\x81\x25\x4b\x89\x9f\x8e\xd9\x25"
      "\xae\x9f\x09\x23\xc2\x3c\x62\xf5\x3c\x57\xcd\xbf\x69\x1c";
  const char public_b[] =
      "\xd1\x73\x28\x99\xf6\x11\xcd\x89\x94\x03\x4d\x7f\x41\x3d\xc9\x57\x63\x0e"
      "\x54\x93\xc2\x85\xac\xa4\x00\x65\xcb\x63\x11\xbe\x69\x6b";
  const char public_c[] =
      "\xf4\x4d\xa3\x67\xa8\x8e\xe6\x56\x4f\x02\x02\x11\x45\x67\x27\x08\x2f\x5c"
      "\xeb\xee\x8b\x1b\xf5\xeb\x73\x37\x34\x1b\x45\x9b\x39\x22";
  const uint16_t listen_a = 20001;
  const uint16_t listen_b = 20002;
  const uint16_t listen_c = 20003;
  const uint16_t af_inet = AF_INET;
  const uint16_t af_inet6 = AF_INET6;
  const struct sockaddr_in endpoint_b_v4 = {
      .sin_family = AF_INET,
      .sin_port = htons(listen_b),
      .sin_addr = {htonl(INADDR_LOOPBACK)}};
  const struct sockaddr_in endpoint_c_v4 = {
      .sin_family = AF_INET,
      .sin_port = htons(listen_c),
      .sin_addr = {htonl(INADDR_LOOPBACK)}};
  struct sockaddr_in6 endpoint_a_v6 = {.sin6_family = AF_INET6,
                                       .sin6_port = htons(listen_a)};
  endpoint_a_v6.sin6_addr = in6addr_loopback;
  struct sockaddr_in6 endpoint_c_v6 = {.sin6_family = AF_INET6,
                                       .sin6_port = htons(listen_c)};
  endpoint_c_v6.sin6_addr = in6addr_loopback;
  const struct in_addr first_half_v4 = {0};
  const struct in_addr second_half_v4 = {(uint32_t)htonl(128 << 24)};
  const struct in6_addr first_half_v6 = {{{0}}};
  const struct in6_addr second_half_v6 = {{{0x80}}};
  const uint8_t half_cidr = 1;
  const uint16_t persistent_keepalives[] = {1, 3, 7, 9, 14, 19};
  struct genlmsghdr genlhdr = {.cmd = WG_CMD_SET_DEVICE, .version = 1};
  int sock;
  int id, err;
  sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock == -1) {
    return;
  }
  id = netlink_query_family_id(&nlmsg, sock, WG_GENL_NAME, true);
  if (id == -1)
    goto error;
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_a, strlen(ifname_a) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_a, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_a, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
               sizeof(endpoint_b_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[0], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v6,
               sizeof(endpoint_c_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[1], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err < 0) {
  }
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_b, strlen(ifname_b) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_b, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_b, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
               sizeof(endpoint_a_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[2], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v4,
               sizeof(endpoint_c_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[3], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err < 0) {
  }
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_c, strlen(ifname_c) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_c, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_c, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
               sizeof(endpoint_a_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[4], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
               sizeof(endpoint_b_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[5], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err < 0) {
  }

error:
  close(sock);
}

static void initialize_netdevices(void)
{
  char netdevsim[16];
  sprintf(netdevsim, "netdevsim%d", (int)procid);
  struct {
    const char* type;
    const char* dev;
  } devtypes[] = {
      {"ip6gretap", "ip6gretap0"}, {"bridge", "bridge0"}, {"vcan", "vcan0"},
      {"bond", "bond0"},           {"team", "team0"},     {"dummy", "dummy0"},
      {"nlmon", "nlmon0"},         {"caif", "caif0"},     {"batadv", "batadv0"},
      {"vxcan", "vxcan1"},         {"veth", 0},           {"wireguard", "wg0"},
      {"wireguard", "wg1"},        {"wireguard", "wg2"},
  };
  const char* devmasters[] = {"bridge", "bond", "team", "batadv"};
  struct {
    const char* name;
    int macsize;
    bool noipv6;
  } devices[] = {
      {"lo", ETH_ALEN},
      {"sit0", 0},
      {"bridge0", ETH_ALEN},
      {"vcan0", 0, true},
      {"tunl0", 0},
      {"gre0", 0},
      {"gretap0", ETH_ALEN},
      {"ip_vti0", 0},
      {"ip6_vti0", 0},
      {"ip6tnl0", 0},
      {"ip6gre0", 0},
      {"ip6gretap0", ETH_ALEN},
      {"erspan0", ETH_ALEN},
      {"bond0", ETH_ALEN},
      {"veth0", ETH_ALEN},
      {"veth1", ETH_ALEN},
      {"team0", ETH_ALEN},
      {"veth0_to_bridge", ETH_ALEN},
      {"veth1_to_bridge", ETH_ALEN},
      {"veth0_to_bond", ETH_ALEN},
      {"veth1_to_bond", ETH_ALEN},
      {"veth0_to_team", ETH_ALEN},
      {"veth1_to_team", ETH_ALEN},
      {"veth0_to_hsr", ETH_ALEN},
      {"veth1_to_hsr", ETH_ALEN},
      {"hsr0", 0},
      {"dummy0", ETH_ALEN},
      {"nlmon0", 0},
      {"vxcan0", 0, true},
      {"vxcan1", 0, true},
      {"caif0", ETH_ALEN},
      {"batadv0", ETH_ALEN},
      {netdevsim, ETH_ALEN},
      {"xfrm0", ETH_ALEN},
      {"veth0_virt_wifi", ETH_ALEN},
      {"veth1_virt_wifi", ETH_ALEN},
      {"virt_wifi0", ETH_ALEN},
      {"veth0_vlan", ETH_ALEN},
      {"veth1_vlan", ETH_ALEN},
      {"vlan0", ETH_ALEN},
      {"vlan1", ETH_ALEN},
      {"macvlan0", ETH_ALEN},
      {"macvlan1", ETH_ALEN},
      {"ipvlan0", ETH_ALEN},
      {"ipvlan1", ETH_ALEN},
      {"veth0_macvtap", ETH_ALEN},
      {"veth1_macvtap", ETH_ALEN},
      {"macvtap0", ETH_ALEN},
      {"macsec0", ETH_ALEN},
      {"veth0_to_batadv", ETH_ALEN},
      {"veth1_to_batadv", ETH_ALEN},
      {"batadv_slave_0", ETH_ALEN},
      {"batadv_slave_1", ETH_ALEN},
      {"geneve0", ETH_ALEN},
      {"geneve1", ETH_ALEN},
      {"wg0", 0},
      {"wg1", 0},
      {"wg2", 0},
  };
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  unsigned i;
  for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++)
    netlink_add_device(&nlmsg, sock, devtypes[i].type, devtypes[i].dev);
  for (i = 0; i < sizeof(devmasters) / (sizeof(devmasters[0])); i++) {
    char master[32], slave0[32], veth0[32], slave1[32], veth1[32];
    sprintf(slave0, "%s_slave_0", devmasters[i]);
    sprintf(veth0, "veth0_to_%s", devmasters[i]);
    netlink_add_veth(&nlmsg, sock, slave0, veth0);
    sprintf(slave1, "%s_slave_1", devmasters[i]);
    sprintf(veth1, "veth1_to_%s", devmasters[i]);
    netlink_add_veth(&nlmsg, sock, slave1, veth1);
    sprintf(master, "%s0", devmasters[i]);
    netlink_device_change(&nlmsg, sock, slave0, false, master, 0, 0, NULL);
    netlink_device_change(&nlmsg, sock, slave1, false, master, 0, 0, NULL);
  }
  netlink_add_xfrm(&nlmsg, sock, "xfrm0");
  netlink_device_change(&nlmsg, sock, "bridge_slave_0", true, 0, 0, 0, NULL);
  netlink_device_change(&nlmsg, sock, "bridge_slave_1", true, 0, 0, 0, NULL);
  netlink_add_veth(&nlmsg, sock, "hsr_slave_0", "veth0_to_hsr");
  netlink_add_veth(&nlmsg, sock, "hsr_slave_1", "veth1_to_hsr");
  netlink_add_hsr(&nlmsg, sock, "hsr0", "hsr_slave_0", "hsr_slave_1");
  netlink_device_change(&nlmsg, sock, "hsr_slave_0", true, 0, 0, 0, NULL);
  netlink_device_change(&nlmsg, sock, "hsr_slave_1", true, 0, 0, 0, NULL);
  netlink_add_veth(&nlmsg, sock, "veth0_virt_wifi", "veth1_virt_wifi");
  netlink_add_linked(&nlmsg, sock, "virt_wifi", "virt_wifi0",
                     "veth1_virt_wifi");
  netlink_add_veth(&nlmsg, sock, "veth0_vlan", "veth1_vlan");
  netlink_add_vlan(&nlmsg, sock, "vlan0", "veth0_vlan", 0, htons(ETH_P_8021Q));
  netlink_add_vlan(&nlmsg, sock, "vlan1", "veth0_vlan", 1, htons(ETH_P_8021AD));
  netlink_add_macvlan(&nlmsg, sock, "macvlan0", "veth1_vlan");
  netlink_add_macvlan(&nlmsg, sock, "macvlan1", "veth1_vlan");
  netlink_add_ipvlan(&nlmsg, sock, "ipvlan0", "veth0_vlan", IPVLAN_MODE_L2, 0);
  netlink_add_ipvlan(&nlmsg, sock, "ipvlan1", "veth0_vlan", IPVLAN_MODE_L3S,
                     IPVLAN_F_VEPA);
  netlink_add_veth(&nlmsg, sock, "veth0_macvtap", "veth1_macvtap");
  netlink_add_linked(&nlmsg, sock, "macvtap", "macvtap0", "veth0_macvtap");
  netlink_add_linked(&nlmsg, sock, "macsec", "macsec0", "veth1_macvtap");
  char addr[32];
  sprintf(addr, DEV_IPV4, 14 + 10);
  struct in_addr geneve_addr4;
  if (inet_pton(AF_INET, addr, &geneve_addr4) <= 0)
    exit(1);
  struct in6_addr geneve_addr6;
  if (inet_pton(AF_INET6, "fc00::01", &geneve_addr6) <= 0)
    exit(1);
  netlink_add_geneve(&nlmsg, sock, "geneve0", 0, &geneve_addr4, 0);
  netlink_add_geneve(&nlmsg, sock, "geneve1", 1, 0, &geneve_addr6);
  netdevsim_add((int)procid, 4);
  netlink_wireguard_setup();
  for (i = 0; i < sizeof(devices) / (sizeof(devices[0])); i++) {
    char addr[32];
    sprintf(addr, DEV_IPV4, i + 10);
    netlink_add_addr4(&nlmsg, sock, devices[i].name, addr);
    if (!devices[i].noipv6) {
      sprintf(addr, DEV_IPV6, i + 10);
      netlink_add_addr6(&nlmsg, sock, devices[i].name, addr);
    }
    uint64_t macaddr = DEV_MAC + ((i + 10ull) << 40);
    netlink_device_change(&nlmsg, sock, devices[i].name, true, 0, &macaddr,
                          devices[i].macsize, NULL);
  }
  close(sock);
}
static void initialize_netdevices_init(void)
{
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  struct {
    const char* type;
    int macsize;
    bool noipv6;
    bool noup;
  } devtypes[] = {
      {"nr", 7, true},
      {"rose", 5, true, true},
  };
  unsigned i;
  for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++) {
    char dev[32], addr[32];
    sprintf(dev, "%s%d", devtypes[i].type, (int)procid);
    sprintf(addr, "172.30.%d.%d", i, (int)procid + 1);
    netlink_add_addr4(&nlmsg, sock, dev, addr);
    if (!devtypes[i].noipv6) {
      sprintf(addr, "fe88::%02x:%02x", i, (int)procid + 1);
      netlink_add_addr6(&nlmsg, sock, dev, addr);
    }
    int macsize = devtypes[i].macsize;
    uint64_t macaddr = 0xbbbbbb +
                       ((unsigned long long)i << (8 * (macsize - 2))) +
                       (procid << (8 * (macsize - 1)));
    netlink_device_change(&nlmsg, sock, dev, !devtypes[i].noup, 0, &macaddr,
                          macsize, NULL);
  }
  close(sock);
}

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

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, max_destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device)
    reset_loop_device(loopname);
  errno = err;
  return res;
}

#define XT_TABLE_SIZE 1536
#define XT_MAX_ENTRIES 10

struct xt_counters {
  uint64_t pcnt, bcnt;
};

struct ipt_getinfo {
  char name[32];
  unsigned int valid_hooks;
  unsigned int hook_entry[5];
  unsigned int underflow[5];
  unsigned int num_entries;
  unsigned int size;
};

struct ipt_get_entries {
  char name[32];
  unsigned int size;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

struct ipt_replace {
  char name[32];
  unsigned int valid_hooks;
  unsigned int num_entries;
  unsigned int size;
  unsigned int hook_entry[5];
  unsigned int underflow[5];
  unsigned int num_counters;
  struct xt_counters* counters;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

struct ipt_table_desc {
  const char* name;
  struct ipt_getinfo info;
  struct ipt_replace replace;
};

static struct ipt_table_desc ipv4_tables[] = {
    {.name = "filter"}, {.name = "nat"},      {.name = "mangle"},
    {.name = "raw"},    {.name = "security"},
};

static struct ipt_table_desc ipv6_tables[] = {
    {.name = "filter"}, {.name = "nat"},      {.name = "mangle"},
    {.name = "raw"},    {.name = "security"},
};

#define IPT_BASE_CTL 64
#define IPT_SO_SET_REPLACE (IPT_BASE_CTL)
#define IPT_SO_GET_INFO (IPT_BASE_CTL)
#define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1)

struct arpt_getinfo {
  char name[32];
  unsigned int valid_hooks;
  unsigned int hook_entry[3];
  unsigned int underflow[3];
  unsigned int num_entries;
  unsigned int size;
};

struct arpt_get_entries {
  char name[32];
  unsigned int size;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

struct arpt_replace {
  char name[32];
  unsigned int valid_hooks;
  unsigned int num_entries;
  unsigned int size;
  unsigned int hook_entry[3];
  unsigned int underflow[3];
  unsigned int num_counters;
  struct xt_counters* counters;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

struct arpt_table_desc {
  const char* name;
  struct arpt_getinfo info;
  struct arpt_replace replace;
};

static struct arpt_table_desc arpt_tables[] = {
    {.name = "filter"},
};

#define ARPT_BASE_CTL 96
#define ARPT_SO_SET_REPLACE (ARPT_BASE_CTL)
#define ARPT_SO_GET_INFO (ARPT_BASE_CTL)
#define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1)

static void checkpoint_iptables(struct ipt_table_desc* tables, int num_tables,
                                int family, int level)
{
  int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
    case ENOENT:
      return;
    }
    exit(1);
  }
  for (int i = 0; i < num_tables; i++) {
    struct ipt_table_desc* table = &tables[i];
    strcpy(table->info.name, table->name);
    strcpy(table->replace.name, table->name);
    socklen_t optlen = sizeof(table->info);
    if (getsockopt(fd, level, IPT_SO_GET_INFO, &table->info, &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      exit(1);
    }
    if (table->info.size > sizeof(table->replace.entrytable))
      exit(1);
    if (table->info.num_entries > XT_MAX_ENTRIES)
      exit(1);
    struct ipt_get_entries entries;
    memset(&entries, 0, sizeof(entries));
    strcpy(entries.name, table->name);
    entries.size = table->info.size;
    optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
    if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
      exit(1);
    table->replace.valid_hooks = table->info.valid_hooks;
    table->replace.num_entries = table->info.num_entries;
    table->replace.size = table->info.size;
    memcpy(table->replace.hook_entry, table->info.hook_entry,
           sizeof(table->replace.hook_entry));
    memcpy(table->replace.underflow, table->info.underflow,
           sizeof(table->replace.underflow));
    memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
  }
  close(fd);
}

static void reset_iptables(struct ipt_table_desc* tables, int num_tables,
                           int family, int level)
{
  int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
    case ENOENT:
      return;
    }
    exit(1);
  }
  for (int i = 0; i < num_tables; i++) {
    struct ipt_table_desc* table = &tables[i];
    if (table->info.valid_hooks == 0)
      continue;
    struct ipt_getinfo info;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    socklen_t optlen = sizeof(info);
    if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen))
      exit(1);
    if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
      struct ipt_get_entries entries;
      memset(&entries, 0, sizeof(entries));
      strcpy(entries.name, table->name);
      entries.size = table->info.size;
      optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
      if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
        exit(1);
      if (memcmp(table->replace.entrytable, entries.entrytable,
                 table->info.size) == 0)
        continue;
    }
    struct xt_counters counters[XT_MAX_ENTRIES];
    table->replace.num_counters = info.num_entries;
    table->replace.counters = counters;
    optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
             table->replace.size;
    if (setsockopt(fd, level, IPT_SO_SET_REPLACE, &table->replace, optlen))
      exit(1);
  }
  close(fd);
}

static void checkpoint_arptables(void)
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
    case ENOENT:
      return;
    }
    exit(1);
  }
  for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
    struct arpt_table_desc* table = &arpt_tables[i];
    strcpy(table->info.name, table->name);
    strcpy(table->replace.name, table->name);
    socklen_t optlen = sizeof(table->info);
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &table->info, &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      exit(1);
    }
    if (table->info.size > sizeof(table->replace.entrytable))
      exit(1);
    if (table->info.num_entries > XT_MAX_ENTRIES)
      exit(1);
    struct arpt_get_entries entries;
    memset(&entries, 0, sizeof(entries));
    strcpy(entries.name, table->name);
    entries.size = table->info.size;
    optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
      exit(1);
    table->replace.valid_hooks = table->info.valid_hooks;
    table->replace.num_entries = table->info.num_entries;
    table->replace.size = table->info.size;
    memcpy(table->replace.hook_entry, table->info.hook_entry,
           sizeof(table->replace.hook_entry));
    memcpy(table->replace.underflow, table->info.underflow,
           sizeof(table->replace.underflow));
    memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
  }
  close(fd);
}

static void reset_arptables()
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
    case ENOENT:
      return;
    }
    exit(1);
  }
  for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
    struct arpt_table_desc* table = &arpt_tables[i];
    if (table->info.valid_hooks == 0)
      continue;
    struct arpt_getinfo info;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    socklen_t optlen = sizeof(info);
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &info, &optlen))
      exit(1);
    if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
      struct arpt_get_entries entries;
      memset(&entries, 0, sizeof(entries));
      strcpy(entries.name, table->name);
      entries.size = table->info.size;
      optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
      if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
        exit(1);
      if (memcmp(table->replace.entrytable, entries.entrytable,
                 table->info.size) == 0)
        continue;
    } else {
    }
    struct xt_counters counters[XT_MAX_ENTRIES];
    table->replace.num_counters = info.num_entries;
    table->replace.counters = counters;
    optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
             table->replace.size;
    if (setsockopt(fd, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen))
      exit(1);
  }
  close(fd);
}

#define NF_BR_NUMHOOKS 6
#define EBT_TABLE_MAXNAMELEN 32
#define EBT_CHAIN_MAXNAMELEN 32
#define EBT_BASE_CTL 128
#define EBT_SO_SET_ENTRIES (EBT_BASE_CTL)
#define EBT_SO_GET_INFO (EBT_BASE_CTL)
#define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO + 1)
#define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES + 1)
#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO + 1)

struct ebt_replace {
  char name[EBT_TABLE_MAXNAMELEN];
  unsigned int valid_hooks;
  unsigned int nentries;
  unsigned int entries_size;
  struct ebt_entries* hook_entry[NF_BR_NUMHOOKS];
  unsigned int num_counters;
  struct ebt_counter* counters;
  char* entries;
};

struct ebt_entries {
  unsigned int distinguisher;
  char name[EBT_CHAIN_MAXNAMELEN];
  unsigned int counter_offset;
  int policy;
  unsigned int nentries;
  char data[0] __attribute__((aligned(__alignof__(struct ebt_replace))));
};

struct ebt_table_desc {
  const char* name;
  struct ebt_replace replace;
  char entrytable[XT_TABLE_SIZE];
};

static struct ebt_table_desc ebt_tables[] = {
    {.name = "filter"},
    {.name = "nat"},
    {.name = "broute"},
};

static void checkpoint_ebtables(void)
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
    case ENOENT:
      return;
    }
    exit(1);
  }
  for (size_t i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
    struct ebt_table_desc* table = &ebt_tables[i];
    strcpy(table->replace.name, table->name);
    socklen_t optlen = sizeof(table->replace);
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_INFO, &table->replace,
                   &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      exit(1);
    }
    if (table->replace.entries_size > sizeof(table->entrytable))
      exit(1);
    table->replace.num_counters = 0;
    table->replace.entries = table->entrytable;
    optlen = sizeof(table->replace) + table->replace.entries_size;
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_ENTRIES, &table->replace,
                   &optlen))
      exit(1);
  }
  close(fd);
}

static void reset_ebtables()
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
    case ENOENT:
      return;
    }
    exit(1);
  }
  for (unsigned i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
    struct ebt_table_desc* table = &ebt_tables[i];
    if (table->replace.valid_hooks == 0)
      continue;
    struct ebt_replace replace;
    memset(&replace, 0, sizeof(replace));
    strcpy(replace.name, table->name);
    socklen_t optlen = sizeof(replace);
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INFO, &replace, &optlen))
      exit(1);
    replace.num_counters = 0;
    table->replace.entries = 0;
    for (unsigned h = 0; h < NF_BR_NUMHOOKS; h++)
      table->replace.hook_entry[h] = 0;
    if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) {
      char entrytable[XT_TABLE_SIZE];
      memset(&entrytable, 0, sizeof(entrytable));
      replace.entries = entrytable;
      optlen = sizeof(replace) + replace.entries_size;
      if (getsockopt(fd, SOL_IP, EBT_SO_GET_ENTRIES, &replace, &optlen))
        exit(1);
      if (memcmp(table->entrytable, entrytable, replace.entries_size) == 0)
        continue;
    }
    for (unsigned j = 0, h = 0; h < NF_BR_NUMHOOKS; h++) {
      if (table->replace.valid_hooks & (1 << h)) {
        table->replace.hook_entry[h] =
            (struct ebt_entries*)table->entrytable + j;
        j++;
      }
    }
    table->replace.entries = table->entrytable;
    optlen = sizeof(table->replace) + table->replace.entries_size;
    if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen))
      exit(1);
  }
  close(fd);
}

static void checkpoint_net_namespace(void)
{
  checkpoint_ebtables();
  checkpoint_arptables();
  checkpoint_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
                      AF_INET, SOL_IP);
  checkpoint_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
                      AF_INET6, SOL_IPV6);
}

static void reset_net_namespace(void)
{
  reset_ebtables();
  reset_arptables();
  reset_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
                 AF_INET, SOL_IP);
  reset_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
                 AF_INET6, SOL_IPV6);
}

static void mount_cgroups(const char* dir, const char** controllers, int count)
{
  if (mkdir(dir, 0777)) {
    return;
  }
  char enabled[128] = {0};
  int i = 0;
  for (; i < count; i++) {
    if (mount("none", dir, "cgroup", 0, controllers[i])) {
      continue;
    }
    umount(dir);
    strcat(enabled, ",");
    strcat(enabled, controllers[i]);
  }
  if (enabled[0] == 0) {
    if (rmdir(dir) && errno != EBUSY)
      exit(1);
    return;
  }
  if (mount("none", dir, "cgroup", 0, enabled + 1)) {
    if (rmdir(dir) && errno != EBUSY)
      exit(1);
  }
  if (chmod(dir, 0777)) {
  }
}

static void mount_cgroups2(const char** controllers, int count)
{
  if (mkdir("/syzcgroup/unified", 0777)) {
    return;
  }
  if (mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL)) {
    if (rmdir("/syzcgroup/unified") && errno != EBUSY)
      exit(1);
    return;
  }
  if (chmod("/syzcgroup/unified", 0777)) {
  }
  int control = open("/syzcgroup/unified/cgroup.subtree_control", O_WRONLY);
  if (control == -1)
    return;
  int i;
  for (i = 0; i < count; i++)
    if (write(control, controllers[i], strlen(controllers[i])) < 0) {
    }
  close(control);
}

static void setup_cgroups()
{
  const char* unified_controllers[] = {"+cpu", "+io", "+pids"};
  const char* net_controllers[] = {"net", "net_prio", "devices", "blkio",
                                   "freezer"};
  const char* cpu_controllers[] = {"cpuset", "cpuacct", "hugetlb", "rlimit",
                                   "memory"};
  if (mkdir("/syzcgroup", 0777)) {
    return;
  }
  mount_cgroups2(unified_controllers,
                 sizeof(unified_controllers) / sizeof(unified_controllers[0]));
  mount_cgroups("/syzcgroup/net", net_controllers,
                sizeof(net_controllers) / sizeof(net_controllers[0]));
  mount_cgroups("/syzcgroup/cpu", cpu_controllers,
                sizeof(cpu_controllers) / sizeof(cpu_controllers[0]));
  write_file("/syzcgroup/cpu/cgroup.clone_children", "1");
  write_file("/syzcgroup/cpu/cpuset.memory_pressure_enabled", "1");
}

static void setup_cgroups_loop()
{
  int pid = getpid();
  char file[128];
  char cgroupdir[64];
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
  if (mkdir(cgroupdir, 0777)) {
  }
  snprintf(file, sizeof(file), "%s/pids.max", cgroupdir);
  write_file(file, "32");
  snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
  write_file(file, "%d", pid);
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
  if (mkdir(cgroupdir, 0777)) {
  }
  snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
  write_file(file, "%d", pid);
  snprintf(file, sizeof(file), "%s/memory.soft_limit_in_bytes", cgroupdir);
  write_file(file, "%d", 299 << 20);
  snprintf(file, sizeof(file), "%s/memory.limit_in_bytes", cgroupdir);
  write_file(file, "%d", 300 << 20);
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
  if (mkdir(cgroupdir, 0777)) {
  }
  snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
  write_file(file, "%d", pid);
}

static void setup_cgroups_test()
{
  char cgroupdir[64];
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
  if (symlink(cgroupdir, "./cgroup")) {
  }
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
  if (symlink(cgroupdir, "./cgroup.cpu")) {
  }
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
  if (symlink(cgroupdir, "./cgroup.net")) {
  }
}

static void initialize_cgroups()
{
  if (mkdir("./syz-tmp/newroot/syzcgroup", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/net", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL,
            bind_mount_flags, NULL)) {
  }
  if (mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL,
            bind_mount_flags, NULL)) {
  }
  if (mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL,
            bind_mount_flags, NULL)) {
  }
}

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);
  initialize_cgroups();
  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);
}

static void setup_common()
{
  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);
  setsid();
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 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);
  setup_common();
  sandbox_common();
  drop_caps();
  initialize_netdevices_init();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_tun();
  initialize_netdevices();
  sandbox_common_mount_tmpfs();
  setup_binderfs();
  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_loop()
{
  setup_cgroups_loop();
  checkpoint_net_namespace();
}

static void reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  reset_net_namespace();
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  setup_cgroups_test();
  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_binfmt_misc()
{
  if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) {
    return NULL;
  }
  if (!write_file("/proc/sys/fs/binfmt_misc/register",
                  ":syz0:M:0:\x01::./file0:") ||
      !write_file("/proc/sys/fs/binfmt_misc/register",
                  ":syz1:M:1:\x02::./file0:POC"))
    return "write(/proc/sys/fs/binfmt_misc/register) failed";
  return NULL;
}

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 NL802154_CMD_SET_SHORT_ADDR 11
#define NL802154_ATTR_IFINDEX 3
#define NL802154_ATTR_SHORT_ADDR 10

static const char* setup_802154()
{
  const char* error = NULL;
  int sock_generic = -1;
  int sock_route = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock_route == -1) {
    error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) failed";
    goto fail;
  }
  sock_generic = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock_generic == -1) {
    error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) failed";
    goto fail;
  }
  {
    int nl802154_family_id =
        netlink_query_family_id(&nlmsg, sock_generic, "nl802154", true);
    if (nl802154_family_id < 0) {
      error = "netlink_query_family_id failed";
      goto fail;
    }
    for (int i = 0; i < 2; i++) {
      char devname[] = "wpan0";
      devname[strlen(devname) - 1] += i;
      uint64_t hwaddr = 0xaaaaaaaaaaaa0002 + (i << 8);
      uint16_t shortaddr = 0xaaa0 + i;
      int ifindex = if_nametoindex(devname);
      struct genlmsghdr genlhdr;
      memset(&genlhdr, 0, sizeof(genlhdr));
      genlhdr.cmd = NL802154_CMD_SET_SHORT_ADDR;
      netlink_init(&nlmsg, nl802154_family_id, 0, &genlhdr, sizeof(genlhdr));
      netlink_attr(&nlmsg, NL802154_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
      netlink_attr(&nlmsg, NL802154_ATTR_SHORT_ADDR, &shortaddr,
                   sizeof(shortaddr));
      if (netlink_send(&nlmsg, sock_generic) < 0) {
        error = "NL802154_CMD_SET_SHORT_ADDR failed";
        goto fail;
      }
      netlink_device_change(&nlmsg, sock_route, devname, true, 0, &hwaddr,
                            sizeof(hwaddr), 0);
      if (i == 0) {
        netlink_add_device_impl(&nlmsg, "lowpan", "lowpan0", false);
        netlink_done(&nlmsg);
        netlink_attr(&nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
        if (netlink_send(&nlmsg, sock_route) < 0) {
          error = "netlink: adding device lowpan0 type lowpan link wpan0";
          goto fail;
        }
      }
    }
  }
fail:
  close(sock_route);
  close(sock_generic);
  return error;
}

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 < 14; 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 == 0 ? 4000 : 0) +
                                     (call == 3 ? 4000 : 0) +
                                     (call == 12 ? 4000 : 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)
{
  setup_loop();
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    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[7] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    NONFAILING(memcpy((void*)0x20002040, "nilfs2\000", 7));
    NONFAILING(memcpy((void*)0x20000a80, "./file0\000", 8));
    NONFAILING(memcpy(
        (void*)0x20004440,
        "\x78\x9c\xec\xdd\x4f\x6c\x1c\xd5\xfd\x00\xf0\x37\x6b\xaf\x9d\xc4\x26"
        "\x5e\x03\xbf\x1f\x01\x4a\x92\x42\x69\x20\x6d\x9d\xd4\xc9\x81\xde\x82"
        "\x14\xb5\x12\x42\x88\x4b\xef\xa0\x90\x40\x54\x43\xa3\x86\x1e\x40\x44"
        "\x31\x3d\xa5\x52\x0f\x54\x88\x0b\x55\x0f\x54\x70\xab\x94\x1e\x2a\x15"
        "\x54\xa9\x42\x95\x2a\xf5\x0f\x87\x9e\x7b\x42\xed\xa5\x55\x95\x4a\x91"
        "\xb8\x14\x29\x76\x65\xe7\xbd\xf5\xee\x8b\x87\x5d\x8f\xed\xd9\xf5\xee"
        "\xe7\x23\x7d\xf7\xed\xcc\x9b\x9d\xef\x77\xbc\x91\x33\x6f\x3c\xfb\x36"
        "\x00\x63\xab\xb1\xfe\x78\xfa\xf4\xa1\x22\x84\x77\x3e\x7a\xfb\xec\x77"
        "\xae\xae\xfc\x66\x6d\xdd\x91\xf6\x16\x47\xd7\x1f\x8b\xb8\xd4\x0a\x21"
        "\x34\x3b\x96\x8b\x6c\x7f\x9f\xc6\x15\xb7\x6e\xbe\x71\x6e\xad\x5d\xc9"
        "\xda\x22\x2c\xae\x3f\xa6\xfe\xf0\xcc\x8d\xf6\x6b\x67\x42\x08\xcb\xe1"
        "\x68\xf8\x38\xb4\xc2\x91\xe3\xad\xcf\xae\x4d\x3c\x7d\xe1\x83\x77\x3f"
        "\x39\x76\xe5\xd2\x53\x2f\xed\xd2\xe1\x03\x00\xc0\x58\xb9\xfe\xe7\xa5"
        "\xbf\x3d\xfe\xcf\x3f\x7d\x7d\xfe\xf3\xeb\x87\xcf\x84\xe9\xf6\xfa\x74"
        "\x7e\xde\x8a\xcb\x33\xf1\xbc\xff\x64\x3c\xbf\x4f\xe7\xfd\x8d\x10\x66"
        "\x43\x36\x1e\x28\x36\x19\x17\x4c\x85\xee\xd7\x4d\xc4\x68\x64\xdb\x4d"
        "\x64\xdb\x4d\x6e\xe4\xe9\x5a\xce\xf3\x35\xb3\xfd\x34\x4b\xb6\x9b\xea"
        "\x91\x6f\xa2\x63\x5d\x76\x9c\x00\x00\x00\xb0\x67\xa5\x71\x6d\x2b\x14"
        "\x8d\x85\xae\xe5\x46\x63\x61\xe1\xf6\xb8\x7f\xcd\xa7\x73\x53\xc5\xc2"
        "\x2b\x17\x97\x2e\x5c\x1e\x50\xa1\x00\x00\x00\x40\x65\x9f\x5d\x5d\xbf"
        "\xe9\x56\x88\xad\x44\x73\x08\x6a\x10\x42\x08\x21\x84\x10\x42\x08\xb1"
        "\x85\x58\x9d\x1b\xf4\x15\x08\x00\x00\x00\x60\xdc\xa4\x79\x07\xda\xf3"
        "\x83\xe5\x96\xf3\x99\x05\xb6\xa7\xbd\xb7\x56\x7f\xf9\x6f\x3c\xd9\xd8"
        "\xfc\xf5\xb0\x03\xea\xfe\xf7\x2f\xff\xde\xca\xff\xfe\x9b\x7e\xe3\x00"
        "\x00\x50\xdd\xa8\x9e\x4d\xa6\xe3\x4a\xe7\xd1\x69\x1e\x83\x7c\x1e\xc1"
        "\x89\xec\x75\x5b\x3d\xff\x6f\x64\xfb\x99\xdc\x62\x9d\x65\xf3\x0a\xee"
        "\x95\xf9\x06\xcb\xea\xcc\x7f\xae\xc3\xaa\xac\xfe\xad\xbe\x8f\x83\x52"
        "\x56\x7f\x3e\x1f\xe6\xb0\x2a\xab\x3f\x9f\xa7\x73\x58\x95\xd5\x3f\x5d"
        "\x73\x1d\x55\x95\xd5\xbf\xaf\xe6\x3a\xaa\x2a\xab\x7f\x7f\xcd\x75\x54"
        "\x55\x56\xff\x81\x9a\xeb\xa8\xaa\xac\xfe\x99\x9a\xeb\xa8\xaa\xac\xfe"
        "\xd9\x9a\xeb\xa8\xaa\xac\xfe\xbb\x6a\xae\xa3\xaa\xb2\xfa\x0f\xd6\x5c"
        "\x47\x55\x65\xf5\xef\x95\xdb\x6a\xcb\xea\x6f\xd5\x5c\x47\x55\x65\xf5"
        "\xcf\xd7\x5c\x47\x55\x65\xf5\xdf\x5d\x73\x1d\x55\x95\xd5\x7f\x4f\xcd"
        "\x75\x54\x55\x56\xff\xbd\x35\xd7\x31\x28\x0f\xc5\x36\xfd\x1c\x0e\x67"
        "\xfd\x9d\xe3\xe7\x7c\x4c\xb7\x57\xc6\x78\x00\x00\x00\x30\xee\xfe\x6b"
        "\xfe\xbf\xa1\x89\xf5\xeb\x29\x75\xe4\x9a\x1a\xfc\xb1\x8a\x2f\x88\xe9"
        "\x21\xa8\x41\x08\x21\x84\x18\x82\x78\x24\xfd\x81\x6a\x08\x6a\x11\x35"
        "\xc7\xcc\x10\xd4\x20\xc4\x08\xc6\xd5\xc1\x5e\x7e\x00\x00\x00\x00\x86"
        "\x40\xba\xec\x9a\x3e\xf5\xbe\x1a\xa5\xfe\x89\x1e\xfd\x93\x3d\xfa\x9b"
        "\x3d\xfa\xa7\x7a\xf4\x4f\xf7\xe8\x07\x00\x00\x00\x42\xf8\xed\xb5\x0b"
        "\xf7\xbf\x55\x6c\x7c\xce\x7f\xf3\xf9\xf0\xf6\x87\x10\xfa\x9b\x0f\x2f"
        "\xcd\x1b\x95\xe6\x5f\xda\xea\x3c\x46\xf9\x7c\x84\x5b\x9d\x8f\x6f\xbb"
        "\xf3\x9e\x6d\x37\xff\x5e\x99\xb7\x0c\x00\x00\x80\xf1\x52\x7c\xfb\xe3"
        "\x95\xe3\x67\xdf\x7b\x75\xfe\xf3\xeb\x87\xcf\x74\x8c\x7e\x57\xe2\x78"
        "\x37\xcd\x03\x3a\x19\xaf\x0d\x7c\x18\x97\xd3\x7d\x01\xb3\xd9\x72\x91"
        "\xc6\xd0\x67\xba\xf3\x34\x4a\xb6\xcb\xaf\x0f\xdc\x55\xb6\xbf\x67\xb7"
        "\x79\xa0\x00\x00\x00\x30\xc6\xd2\xf8\xbd\x15\x8a\xc6\x42\xc7\xb8\xbb"
        "\x15\x1a\x8d\x85\x85\x8d\xf1\xf8\xa1\xd0\x2c\x2e\x5c\x5c\x3a\x7f\x32"
        "\x2e\xa7\xef\x67\xf9\xe3\x5c\x73\x7a\x6d\xfd\x37\x6b\xae\x1b\x00\x00"
        "\x00\xe8\xdf\xc6\x78\x7f\xf3\xf1\x7f\xfa\x1e\xdf\x43\x61\xaa\x58\x78"
        "\xe5\xe2\xd2\x85\xcb\xb7\x97\x67\xdb\xeb\x9b\x8d\xce\xeb\x02\x73\x1b"
        "\xeb\x8b\xce\xeb\x02\xad\x6c\xfd\x62\xc9\xfa\x53\x71\x39\x7d\x7f\xe7"
        "\x4b\x73\xfb\xd7\xd7\x2f\x9c\xfb\xfe\xd2\x0b\x3b\x7d\xf0\x00\x00\x00"
        "\x30\x26\x2e\xbf\xf6\xfa\xf7\x9e\x5f\x5a\x3a\xff\x03\x4f\x3c\xf1\xc4"
        "\x93\xf6\x93\x41\xff\x66\x02\x00\x00\x76\xda\x07\xff\x78\xfb\x2f\x3f"
        "\x3c\x35\xfb\xbb\xdb\x9f\xff\xdf\x98\xff\x2e\x7d\xfe\xff\x68\x5c\x6e"
        "\xc5\xb9\xfd\xfe\x1a\x37\x48\xf7\x09\xa4\xcf\x01\xdc\xf1\x79\xfd\xe7"
        "\xba\xf3\xcc\x95\x6d\x77\xa9\x7b\xbb\x56\xb6\xdd\x44\x8c\xe9\xac\xee"
        "\x7d\x1d\xfb\x09\x1d\xf3\x0d\xa6\xd7\xcd\x97\xe5\x6b\x75\xef\x67\xaa"
        "\x24\xdf\x4c\x96\x6f\x36\xcb\x97\xcf\x53\x30\x99\x6d\x9f\xf2\x1d\xcc"
        "\xd6\xe7\xf3\x13\xa6\xed\xe6\xb2\xf5\xf9\x3c\x8c\x93\x59\x8e\x22\xcb"
        "\xff\x70\x00\x00\x00\x80\x72\x27\x5e\x7d\xf9\xd2\x89\xcb\xaf\xbd\xfe"
        "\x8d\x8b\x2f\x3f\xff\xe2\xf9\x17\xcf\xbf\x72\xea\xe4\xe2\xb7\x16\x9f"
        "\x58\x9c\x38\xbd\x78\x62\xfd\xbe\xfe\x13\x9d\x77\xf7\x03\x00\x00\x00"
        "\x7b\xd1\xc6\x4d\xbf\x83\xae\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\xc6\x57\x1d\x5f\x27\x36\xe8\x63\x04\x00\x00"
        "\x80\x71\xf7\x9f\xab\x21\x84\x65\x21\x84\x10\x42\x08\x21\x84\x10\x42"
        "\x8c\x72\xac\xae\xe6\xdf\x34\x0f\x00\x00\x00\xb0\xbb\x6e\xdd\x7c\xe3"
        "\x5c\x67\x7b\x87\xe5\x62\x47\xf3\xb5\xf7\xd6\xba\xdd\xac\xc4\xbc\xa9"
        "\xfd\xc3\xa3\x3f\x7f\x74\x2d\xd2\x66\x37\x9e\xec\xbe\x5e\x72\x60\x47"
        "\xab\x61\xdc\xd5\xfd\xef\x5f\xfe\xbd\x95\xff\xfd\x37\x77\x36\xff\xbe"
        "\xf4\xa4\xef\xdf\x7f\x8d\xee\x1d\x9c\xa9\x96\xf7\xab\x3f\xfd\xd7\x63"
        "\x9d\xf9\x1f\x98\xec\x33\x7f\x7e\xfc\xcf\x56\xcb\x7f\x2c\xcb\x7f\x2c"
        "\xf4\x97\x7f\xf5\xbd\x2c\xff\x73\xd5\xf2\x3f\x96\xe5\x3f\xd0\x67\xfe"
        "\x3b\x8e\xff\x52\xb5\xfc\x8f\xc7\xfc\x87\x52\x3d\x8f\xf4\x9b\xbf\xfb"
        "\xfd\x9f\x8e\x6d\x3a\x8e\xfd\x7d\xe6\x3f\x9e\x1d\xff\x0b\xa1\xdf\xfc"
        "\xd9\xf1\xb7\xfa\x4c\x98\xf9\x5a\xcc\x0f\x00\xe3\xa8\x31\xe8\x02\x76"
        "\x49\x3a\x4b\x48\xe7\xd1\x33\x71\x39\x1d\x6f\x3c\xdd\x0c\xf9\xdd\x0f"
        "\x5b\x3d\xff\x6f\x64\xfb\x99\xdc\x76\xe5\xdd\xfb\x4d\xe7\x41\xf7\xc5"
        "\xe5\x74\xbe\x34\x9b\xe5\x4d\xb6\x5a\xff\x4c\xb6\xbf\xbb\x2a\xd6\x99"
        "\xdb\x2b\x77\x95\x94\xd5\xbf\x53\xef\xe3\x6e\x2b\xab\xbf\x59\x73\x1d"
        "\x55\x95\xd5\x3f\x55\x73\x1d\x55\x95\xd5\x3f\x5d\x73\x1d\x55\x95\xd5"
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        "\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\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x46\x47\x63\xfd\xf1\xf4\xe9\x43"
        "\x45\x08\xef\x7c\xf4\xf6\xd9\xb9\x2b\x67\x5f\x5c\x5b\x77\xa4\xbd\xc5"
        "\xd1\xf5\xc7\x22\x2e\xb5\x42\x08\xcd\xf6\xeb\x52\xef\xc6\xf2\xaf\xe2"
        "\x86\xb7\x6e\xbe\x71\x6e\xad\x5d\x89\xed\x6a\x6c\x8b\xb0\x18\x8a\x50"
        "\xb4\xfb\xc3\x33\x37\xda\x99\x66\x42\x08\xcb\xe1\x68\xf8\x38\xb4\xc2"
        "\x91\xe3\xad\xcf\xae\x4d\x3c\x7d\xe1\x83\x77\x3f\x39\x76\xe5\xd2\x53"
        "\x2f\xed\xe2\x8f\x00\x00\x00\x00\x46\xde\xff\x02\x00\x00\xff\xff\x41"
        "\x27\x25\x4e",
        3811));
    NONFAILING(syz_mount_image(/*fs=*/0x20002040, /*dir=*/0x20000a80,
                               /*flags=*/0, /*opts=*/0x20000000, /*chdir=*/5,
                               /*size=*/0xee3, /*img=*/0x20004440));
    break;
  case 1:
    NONFAILING(memcpy((void*)0x20000040, "./file1\000", 8));
    syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul,
            /*flags=O_SYNC|O_NOATIME|O_CREAT|FASYNC|O_RDWR*/ 0x143042ul,
            /*mode=*/0ul);
    break;
  case 2:
    NONFAILING(memcpy((void*)0x20000100, "./file1\000", 8));
    res =
        syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000100ul,
                /*flags=O_NONBLOCK|O_NOATIME|O_LARGEFILE|O_DIRECT|O_CREAT|0x2*/
                0x4c842ul, /*mode=*/0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 3:
    NONFAILING(memcpy((void*)0x200000c0, "hfsplus\000", 8));
    NONFAILING(memcpy(
        (void*)0x200008c0,
        "\023\023w\305\3745\324\024T\325\324\035)\255\032`)"
        "Y\201F\346\276\026nA\255\r\275@T\003<\2373\273\332\202$"
        "\242\363\327r\347cnH\263<\277p\203r\350\361\271\223>"
        "\305\022wC\276\"\006 \236\360-\371\313\362\366\350\200\3238/\000",
        78));
    NONFAILING(
        memcpy((void*)0x20000bc0,
               "\x6e\x6f\x62\x61\x72\x72\x69\x65\x72\x2c\x6e\x6f\x62\x61\x72"
               "\x72\x69\x65\x72\x2c\x63\x72\x65\x61\x74\x6f\x72\x3d\x44\x74"
               "\x66\xf5\x2c\x6e\x6c\x73\x3d\x63\x70\x38\x35\x37\x2c\x75\x6d"
               "\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
               "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x33\x37\x2c\x75\x6d"
               "\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
               "\x30\x30\x30\x30\x30\x30\x30\x30\x36\x37\x34\x35\x2c\x00",
               104));
    NONFAILING(memcpy(
        (void*)0x20000100,
        "\x78\x9c\xec\xdd\x4f\x6c\x1c\x57\x1d\x07\xf0\xef\x6c\x36\xeb\x6c\x90"
        "\x52\xf7\x5f\x1a\x10\x52\xad\x46\xaa\xa0\x11\x89\x9d\x55\x49\x90\x90"
        "\x1a\x10\x42\x39\x44\x28\x82\x4b\xaf\x56\xe2\x34\x56\x36\x69\xe5\xb8"
        "\x28\xad\x10\xd9\x00\x05\x89\x13\x27\xd4\x03\x87\x22\x14\x0e\x3d\x21"
        "\x84\x90\xca\x09\x51\xce\x48\x48\x5c\x38\xf9\x1e\x89\x1b\x87\x1c\x00"
        "\xa3\x99\x9d\x5d\xaf\xed\x8d\x63\x27\xb1\xd7\x6d\x3f\x1f\x69\x3c\xef"
        "\xed\x9b\xf7\xde\x6f\x7e\x9d\x3f\xbb\xb3\x8d\x36\xc0\x67\xd6\xf9\xd7"
        "\x73\xb0\x97\x22\xe7\x4f\x5c\xb8\x55\xd6\x57\xee\x76\xba\x2b\x77\x3b"
        "\xd7\x07\xe5\x24\x53\x49\x1a\x49\xb3\xbf\x4a\xd1\x4e\x8a\x8f\x93\x73"
        "\xe9\x2f\xf9\x7c\xf9\x62\x3d\x5c\xf1\xa0\x79\x5e\xbd\xf7\x51\xd1\x7c"
        "\xff\xc3\x4e\xbf\xd6\xac\x97\x6a\xfb\xc6\x56\xfd\x36\x19\xbb\x65\x2f"
        "\x39\x34\xac\x1c\x48\x32\xd3\x2f\xfe\x67\xdb\xc3\x6e\x1a\xaf\x5a\xaa"
        "\x71\x2e\xad\x8d\xf7\x88\x8a\x61\xdc\x65\xc2\x8e\x0f\x12\x07\x93\xb6"
        "\xba\x49\x6f\xad\xb1\xf1\xd0\xee\xdb\x3f\x6f\x81\x7d\xeb\x76\xff\xbe"
        "\xb9\xc9\x74\x72\x38\xfd\xbb\x6b\xf9\x3e\x20\xf5\xd5\xe1\xe1\x57\x86"
        "\xc9\xdb\xf2\xda\xd4\xdb\xbb\x38\x00\x00\x00\x60\xb7\x8c\xfd\x2c\x3f"
        "\xea\xa9\xfb\xb9\x9f\x5b\x39\xb2\x37\xe1\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\xc0\xa7\x43\xd1\xff\xcd\xc0\xa2\x5e\x1a\x83\xf2\x4c\x8a"
        "\xc1\xef\xff\xb7\x46\x7e\x53\xbf\x35\xe1\x70\x1f\xd3\x7b\x57\xaa\xd5"
        "\x77\x9f\x9a\x74\x20\x00\x00\x00\x00\x00\x00\x00\xf0\x58\x5e\xbc\x9f"
        "\xfb\xb9\x95\x23\x83\xfa\x6a\x51\x7d\xe7\xff\x52\x55\x79\xae\xfa\xfb"
        "\xb9\xbc\x9d\x9b\x59\xc8\x52\x4e\xe6\x56\xe6\xb3\x9c\xe5\x2c\x65\x2e"
        "\xc9\xf4\xc8\x40\xad\x5b\xf3\xcb\xcb\x4b\x73\x9b\x7b\xfe\x32\x65\xcf"
        "\xd5\xd5\xd5\xdb\x75\xcf\xd3\x63\x7b\x9e\x5e\x1f\x57\x6f\x63\xa0\xe3"
        "\xfe\x4f\x83\x4d\x1b\x01\x00\x00\x00\x00\x00\x00\xc0\x67\xd6\x8f\x72"
        "\x7e\xed\xfb\x7f\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\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\xd8\x0f\x8a\xe4\x40\x7f\x55\x2d\xcf\x0d\xca\xd3\x69\x34\x93\x1c\x4a"
        "\xd2\x2a\x66\x86\x9b\xb7\x26\x1a\xec\x13\xf0\xe7\x49\x07\x00\x00\x00"
        "\x00\xbb\xaf\x5d\xaf\x8f\x14\xff\xeb\x17\x56\x8b\xea\x33\xff\xd1\xea"
        "\x73\xff\xa1\xbc\x9d\x1b\x59\xce\x62\x96\xd3\xcd\x42\x2e\x57\xcf\x02"
        "\xfa\x9f\xfa\x1b\x7f\xef\x75\xba\x2b\x77\x3b\xd7\xcb\x65\xf3\xc0\xdf"
        "\xf8\xd7\x8e\xe2\xa8\x46\x4c\xff\xd9\xc3\xf8\x99\x67\xab\x2d\x9e\x1f"
        "\xf6\x38\x9f\x6f\xe7\x7b\x39\x91\x99\x5c\xcc\x52\x16\xf3\xfd\xcc\x67"
        "\x39\x0b\x99\xc9\xb7\xaa\xd2\x7c\x8a\x4c\xd7\x4f\x2f\xa6\x57\xee\xb6"
        "\x33\x88\x75\x73\xbc\xe7\xd6\xd5\x2e\x6e\x8c\xed\xc5\x91\x72\x19\xdf"
        "\xb1\x2a\x92\x76\xae\x64\xb1\x8a\xed\x64\x2e\xb5\x06\xa1\x37\xea\xed"
        "\x8e\x8d\xcc\xf6\xc7\x56\xb2\x61\xc6\x3b\x65\x76\x8a\xd7\x6a\xdb\xcc"
        "\xd1\xe5\x7a\x5d\xee\xd1\x2f\xea\xf5\xfe\x30\x5d\xed\xf9\xc1\x61\x46"
        "\x66\xeb\xdc\x97\xd9\x78\x7a\x34\xef\x9b\x73\xbf\xc3\xe3\x64\xe3\x4c"
        "\x73\x69\x0c\x9f\x41\x3d\xb7\x36\x4b\x59\xdd\x38\xd3\x23\xe5\xfc\x70"
        "\xbd\x2e\x73\xfd\xd3\xdd\xcd\xf9\x0e\x1f\xa5\xad\xcf\x44\xef\xe7\x65"
        "\x6d\x70\xf4\x1d\xdd\x3a\xe7\xc9\x97\xff\xf1\x97\x8b\x57\x1b\x37\xae"
        "\x5d\xbd\x72\xf3\xc4\xfe\x39\x8c\x1e\xd1\xc6\x63\xa2\x33\x92\x89\x17"
        "\xb6\x95\x89\x6e\x99\x89\xde\x63\x64\xe2\xd0\xe3\xc4\xff\xe4\xb4\xea"
        "\x6c\xf4\xaf\xa2\x3b\xbb\x5a\xbe\x54\xf5\x3d\x92\xc5\x7c\x27\x6f\xe6"
        "\x72\x16\x72\x26\xb3\x99\xcb\xd9\xcc\xe6\x6b\x39\x9d\x4e\x4e\x8f\xe4"
        "\xf5\xf9\xad\xf3\x5a\x9d\x6b\x8d\x9d\x9d\x6b\xc7\xbf\x54\x17\xca\x7b"
        "\xd2\xcf\x46\xee\x4d\x7b\x66\xea\x41\x0d\x65\x5e\x9f\x1e\xc9\xeb\xe8"
        "\x95\x6e\xba\x6a\x1b\x7d\x65\x2d\x4b\xcf\x6c\x23\x4b\x45\x2b\xe3\xb3"
        "\xf4\xcf\xb1\xa1\x34\xbf\x50\x17\xca\x39\x7e\x3c\x72\xc7\x99\xbc\x8d"
        "\x99\x98\x1b\xc9\xc4\xb3\x5b\x67\xe2\xd7\xff\x5d\x4d\x72\xb3\x7b\xe3"
        "\xda\xd2\xd5\xf9\xb7\xb6\x39\xdf\xcb\xf5\xba\x3c\x6d\xdf\x5b\x7f\x6d"
        "\xfe\xcd\x13\xd9\xa1\x9d\xab\x77\xb7\x3c\x5e\x9e\x29\xff\x63\xa5\x7f"
        "\xdb\x18\x3d\x3a\xca\xb6\x67\x07\x6d\x1b\xf2\xd5\xaa\xbf\x71\x69\xd6"
        "\x83\xad\x6b\x6b\xa5\x3a\x9f\xfb\x6d\x0f\x3b\x53\xcb\x91\x8e\xde\x19"
        "\x37\x52\xbf\xed\x85\xb1\xb3\x74\xaa\xb6\x63\x23\x6d\xeb\xde\xe5\xe4"
        "\xcd\x74\x87\xef\x42\x00\xd8\xc7\x0e\xbf\x72\xb8\xd5\xbe\xd7\xfe\x5b"
        "\xfb\x83\xf6\x4f\xda\x57\xdb\x17\x0e\x7d\x73\xea\xec\xd4\x17\x5b\x39"
        "\xf8\xd7\xe6\x9f\x0e\xfc\xae\xf1\xdb\xc6\xd7\x8b\x57\xf2\x41\x7e\x98"
        "\x23\x93\x8e\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3e\x0d\x6e\xbe\xf3\xee\xb5"
        "\xf9\x6e\x77\x61\x69\x1f\x16\xd2\x78\xc2\x03\xde\x19\xdb\x34\x48\x45"
        "\xff\x95\xd6\xfe\xd8\xf7\x4f\x6a\x61\x6a\xab\x23\xea\xf7\x49\xb6\xe8"
        "\xde\x9a\x44\xcc\xed\x24\xfb\x22\x75\x69\xee\xc1\x5c\x53\x19\xd3\x74"
        "\x61\xf8\x4a\x3b\x69\x0c\xe3\x49\x72\x6d\x9f\xfc\xc0\x1d\xb0\x1b\x4e"
        "\x2d\x5f\x7f\xeb\xd4\xcd\x77\xde\xfd\xca\xe2\xf5\xf9\x37\x16\xde\x58"
        "\xb8\x71\xfa\xec\x99\xd7\xce\x74\xbe\x3a\x77\xfb\xd4\x95\xc5\xee\xc2"
        "\x6c\xff\xef\xa4\xa3\x04\x76\xc3\xda\xdb\x80\x49\x47\x02\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x6c\xd7\x5e\xfc\xf3\x86\x31\xd3\x16\xbd\x09"
        "\xec\x2b\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\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\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\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\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\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\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\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\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\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"
        "\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\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\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\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\xf0\xc9\x74\xfe\xf5\x1c\xec\xa5\xc8"
        "\xdc\xec\xc9\xd9\xb2\xbe\x72\xb7\xd3\x2d\x97\x41\x79\x6d\xcb\x66\x92"
        "\x46\x92\xe2\x07\x49\xf1\x71\x72\x2e\xfd\x25\xd3\x23\xc3\x15\x0f\x9a"
        "\xe7\xd5\x7b\x1f\xfd\xea\xe5\xf7\x3f\xec\xac\x8d\xd5\x1c\x6c\xdf\xd8"
        "\xd0\xef\x0f\xff\x5e\x5d\xdd\xe1\x5e\xf4\xea\x25\x33\x49\x0e\xd4\xeb"
        "\x87\x9b\xda\xd6\x78\x97\x46\xc6\xeb\xed\x30\xb0\xbe\x62\xb8\x87\x65"
        "\xc2\x8e\x0f\x12\x07\x93\xf6\xff\x00\x00\x00\xff\xff\x1e\x4b\x07\xce",
        1700));
    NONFAILING(syz_mount_image(/*fs=*/0x200000c0, /*dir=*/0x200008c0,
                               /*flags=*/0, /*opts=*/0x20000bc0, /*chdir=*/3,
                               /*size=*/0x6a4, /*img=*/0x20000100));
    break;
  case 4:
    NONFAILING(memcpy((void*)0x20004400, "./bus\000", 6));
    syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20004400ul,
            /*flags=O_NOFOLLOW|O_NOCTTY|O_NOATIME|O_LARGEFILE|O_CREAT|0x3002*/
            0x6b142ul, /*mode=*/0ul);
    break;
  case 5:
    NONFAILING(memcpy((void*)0x20000380, "/dev/loop", 9));
    NONFAILING(*(uint8_t*)0x20000389 = 0x30);
    NONFAILING(*(uint8_t*)0x2000038a = 0);
    NONFAILING(memcpy((void*)0x20000340, "./bus\000", 6));
    syscall(__NR_mount, /*src=*/0x20000380ul, /*dst=*/0x20000340ul,
            /*type=*/0ul, /*flags=MS_BIND*/ 0x1000ul, /*data=*/0ul);
    break;
  case 6:
    NONFAILING(memcpy((void*)0x200005c0, "./bus\000", 6));
    res =
        syscall(__NR_open, /*file=*/0x200005c0ul, /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[1] = res;
    break;
  case 7:
    NONFAILING(*(uint32_t*)0x20000140 = 0x10);
    syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x4c02, /*arg=*/0x20000140ul);
    break;
  case 8:
    NONFAILING(memcpy((void*)0x20000180, "./file0\000", 8));
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000180ul,
                  /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[2] = res;
    break;
  case 9:
    syscall(__NR_getdents64, /*fd=*/r[2], /*ent=*/0ul, /*count=*/0ul);
    break;
  case 10:
    NONFAILING(memcpy((void*)0x20000040, "/dev/mISDNtimer\000", 16));
    res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul,
                  /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[3] = res;
    break;
  case 11:
    res = syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0x80044940,
                  /*arg=*/0x20001b00ul);
    if (res != -1) {
      NONFAILING(r[4] = *(uint64_t*)0x20001c10);
      NONFAILING(r[5] = *(uint64_t*)0x20001c68);
      NONFAILING(r[6] = *(uint64_t*)0x20001c70);
    }
    break;
  case 12:
    NONFAILING(memcpy((void*)0x20000180, "msdos\000", 6));
    NONFAILING(memcpy((void*)0x20000100, ".\000", 2));
    NONFAILING(*(uint16_t*)0x20007980 = r[6]);
    NONFAILING(sprintf((char*)0x20007982, "0x%016llx", (long long)r[5]));
    NONFAILING(memcpy(
        (void*)0x20007994,
        "\x12\xa4\x09\x5a\x2a\xac\x12\xf0\xbf\xcb\x20\x6d\x98\x2e\x44\x06\x63"
        "\x81\x38\x8d\x27\xf1\x40\x02\xd8\xd7\x43\x1d\x39\x47\xf6\x39\x9c\x7f"
        "\xf9\xf5\x19\x3f\xc0\x39\x86\x53\xe5\xa6\x7b\xbb\x31\x9f\x02\xbf\x4a"
        "\xc6\xf6\xcc\xd5\xac\xbf\xe1\x35\x0c\xc3\xa6\xd2\xd4\x8c\xf6\xc0\x89"
        "\xdd\xf6\x71\x71\xff\xb3\xb1\x59\x88\xe7\xb3\x94\xc5\xda\xf3\xe1\x2c"
        "\xa0\x5e\x4d\xbd\xad\x7e\xdd\x45\xf1\x0c\xbc\x29\x6a\x53\xa5\x30\xd4"
        "\xc2\xd2\x03\xee\x65\x0d\x5f\xff\x3a\x9b\x5a\xae\x78\x79\x4f\xe8\x43"
        "\x27\xe5\x08\x17\x2c\xdd\x72\xee\xff\x5a\xf4\xd6\xdb\x93\x79\xbe\xf2"
        "\x0d\xde\x8e\x64\xb9\x1d\x31\xa8\x4c\xe8\xa7\x59\x8b\xb7\x8c\xc8\x51"
        "\x08\x87\x48\x11\xfc\x65\x0f\x05\x20\xa5",
        163));
    NONFAILING(memcpy(
        (void*)0x20007a37,
        "\xf1\xbc\xde\x22\x81\xa8\x43\x92\xf4\xe6\x6f\xf7\xef\x22\xaa\x9a\xf7"
        "\x27\xce\xae\x8a\x8e\xc9\x5f\xc1\xb7\x30\x83\xde\x2d\xe8\x25\xa0\xcb"
        "\x2b\x0b\xe7\x74\xfd\xb3\x36\x50\xd7\xda\xce\x27\xc1\x6b\xc2\x3b\x2f"
        "\x7c\x7f\xb7\x25\x85\x54\x89\x39\x69\x8f\x28\x0d\x13\x8a\xa9\x25\x5a"
        "\x8a\x92\x40\x08\xf8\x47\x7e\x82\xba\x11\xcd\xb1\x1e\xfd\x5c\xa2\xf1"
        "\xab\x04\x9c\xe2\xcc\xc4\x15\xd2\xda\xf8\xda\xc7\x25\x53\x3a\x55\x8d"
        "\x56\x16\x54\xfa\xf5\xe0\x92\x4f\x13\x76\x17\x4f\x37\x4d\x66\x4f\xad"
        "\x4a\x6a\xb2\x4e\xc0\xe8\x22\xe7\xf9\x42\x6e\x8e\x5d\xe1\xfe\x58\x08"
        "\x5a\x0a\xe8\x6f\xd0\x2a\x11\x8b\x93\x65\x96\x18\x34\xd4\x62\x08\xb9"
        "\xfb\x4c\xb1\xa1\xfa\x96\x2a\x8b\x00\x00\xdc\x2e\x31\x93\x79\xea\x1e"
        "\x5a\x07\xae\xb3\xf9\xcd\x4e\x64\x8d\xf4\xdd\x18\xe6\x25\x3e\x7b\x23"
        "\x10\xa7\x8d\x63\xa2\x32\xa2\xa4\x07\x58\x02\x7a\x47\x2e\x7d\x26\x3e"
        "\xf5\x67\xa8\x41\x66\xf2\x6e\xe5\x6e\x70\x1c\x63\xa8\x86\x37\x87\x88"
        "\xa5\x12\xf2\x8e\xde\xc0\x86\xb1\xc0\x82\x3c\x02\x88\x40\xee\xaf\x3f"
        "\x5d\x87\x69\x02\x3c\x01\x21\x86\x14\xf4\xfa\x40\xbe\x98\x92\xe7\xa2"
        "\x85\xac\x63\xf7\xf9\x7a\xaa\x5b\x8e\xcc\x86\xe2\x8c\x61\x93\xbc\x21"
        "\xa2\xb8\x33\xe5\xc9\xc7\x03\xc4\xcf\xa0\x63\xdd\x34\xc2\x45\x70\x6b"
        "\xde\x3d\x7a\xc3\x73\xab\x04\xb6\x2b\x41\x11\xb5\x9e\xab\xd4\x36\xdd"
        "\x97\xe7\x88\xa3\x6e\xf2\x5b\xad\x99\xbe\x2a\xa9\x24\x94\x95\x58\xc8"
        "\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\x00\x00\x00",
        353));
    NONFAILING(sprintf((char*)0x20007b98, "0x%016llx", (long long)-1));
    NONFAILING(*(uint16_t*)0x20007baa = r[4]);
    NONFAILING(sprintf((char*)0x20007bac, "%020llu", (long long)-1));
    NONFAILING(memcpy(
        (void*)0x20007bc0,
        "\x9a\x7f\x40\xad\x4c\x71\x45\x90\x3a\x86\x8b\x90\x20\xe1\xe8\x89\x9e"
        "\xd5\x74\x7d\xb2\x30\x04\xfc\x9d\x24\x89\x00\xab\xca\xa6\xb0\x65\xcf"
        "\x08\x00\x93\x0a\x71\xdc\xd8\xb8\x95\x5d\x93\xc7\x8b\x9d\x4e\x5e\x06"
        "\xd8\xd5\xc9\xac\x9b\x75\xd1\x77\x75\x4d\x6e\xba\x23\xe6\xd2\xbe\x54"
        "\x6c\x0d\xfe\xcd\xf6\x1b\xaf\x73\x29\x50\xa5\x72\x9c\x01\xfb\xdc\x11"
        "\xe3\x6c\xb4\x11\xbe\x20\x0a\x91\x35\x65\x7a\xcd\x97\xd2\x1e\xe4\x6a"
        "\xac\x31\x3e\xbd\xdd\xd9\x26\x5a\xf1\x65\x58\xdd\x3e\x5b\xa4\x83\x66"
        "\x59\xa6\xab\xfe\x08\xaa\xd8\x42\x76\xac\xf9\x49\xbd\xaa\x34\xbd\xf7"
        "\xf7\xb2\xdf\xb2\xfe\x8b\x9d\x6d\x22\x5d\xce\xce\xbe\xb6\xe1\x5f\x64"
        "\x99\x94\x72\x88\x42\xbd\x99\xfc\x94\x89\x7d\x24\x31\x5a\xc2\xd1\x7b"
        "\xf6\xc2\xac\xfb\xfa\x84\x64\xd8\x0f\x36\x30\x4f\x88\xb9\x06\xb7\x8a"
        "\xb3\x59\xbe\x34\x79\xdb\x5b\x0e\x75\x55\xf0\x44\x16\x80\x7c\x22\x02"
        "\xd6\x55\x1f\x24\x25\x44\x0b\xe7\x41\xdb\xe0\x53\xe0\xbf\xeb\x84\x56"
        "\x23\xe7\x22\xa9\x29\x38\x43\xf1\xcf\x0a\x71\x11\x9d\xca\xdf\x7e\x35"
        "\x3a\xf4\xda\x52\xae\xd3\x08\x6d\x6e\x5a\x09\x57\x74\x24\x8b\xe9\xa1"
        "\xb1\x41\x8d\xec\x1c\x03\xa2\xcb\x0e\xce\x08\x40\xeb\xea\xaf\x7b\x67"
        "\x86\x7d\xa4\x59\x43\xb7\x00\xe2\xd6\xda\xd7\x75\xae\x6f\x33\xe5\x5a"
        "\xa8\x6c\xa8\x4c\x33\x6c\x91\xe3\xb7\xd7\x22\x4f\x7a\x9a\x10\xd5\xb4"
        "\x5a\x6c\xe0\x76\x9d\x87\x54\x15\xbe\xa1\x36\xb5\x50\x8e\x5e\x0a\x88"
        "\x29\x07\x92\xda\x3b\x11\xb2\x28\x4a\x3d\x75\x7c\x30\x1c\xec\x78\xb5"
        "\x5d\x3f\xcf\xa0\x73\x61\x5c\xcb\x08\x9f\x66\xc5\xb9\xa5\xc8\x4f\x6c"
        "\x1b\xb7\x8c\x33\x70\xc4\x68\x7e\xab\x26\x07\x11\xfa\x05\x52\x56\x87"
        "\xc7\x70\x9e\x15\xcd\xde\xa0\x61\xf7\x07\x98\xcb\xf9\x40\xad\x92\x9e"
        "\xb8\x0f\x33\xad\x8b\xb4\xfc\xd3\x22\xdd\x05\x58\xf1\x11\xd7\xd0\x13"
        "\x51\x14\x79\x76\xb4\x25\xa2\x7e\x57\x34\x02\x49\x00\x55\x05\x4c\xf3"
        "\xd8\x0b\xeb\xde\x6a\x89\xf3\x08\x61\x70\x63\x37\x40\xf0\x87\x80\xaa"
        "\xc3\xa7\x3f\x17\xea\xed\xa8\xde\xb6\x42\xc2\x88\x79\x62\x59\x6b\x4d"
        "\x78\xc0\xff\xff\xb2\x8d\x0e\x64\x07\x3b\x06\x41\xf8\x9c\xf8\x3a\x69"
        "\xaf\xaa\xea\x03\xba\x60\x70\x83\x8f\xdb\xda\xcc\xb8\x16\x30\xa6\xfd"
        "\xaa\x77\xfc\x10\x14\x60\x13\xb9\xfd\x79\xe9\x65\xa3\x20\xda\xf8\x1c"
        "\x1a\x51\xf0\x32\xa3\xf4\x62\xf2\x74\x0e\x57\x9e\xb1\x16\xca\xd8\x0b"
        "\x4e\x23\x33\x26\xbf\x94\xfe\xa5\x21\x84\x51\x7a\xcc\xf6\x08\xb1\xfb"
        "\xfb\x39\x59\x42\x86\x98\x41\xb9\xca\x0f\x31\x4b\xef\xf6\xb2\xdc\x0a"
        "\x74\xd7\x59\x90\x12\x27\x4b\x24\x77\x5f\x03\x82\xe7\x29\x07\xc1\xf0"
        "\xc5\x71\xb9\x94\xf0\x48\xc0\x26\x6f\xeb\x77\x5d\x89\x3f\xec\x84\xe5"
        "\x73\x3c\xd6\x6a\x96\xcd\x45\xb6\x0f\x63\x74\x3b\x17\xb0\x5d\x99\xc4"
        "\x27\xa2\xd0\x0a\x27\xfe\xf1\x7c\xad\xf1\x28\x05\x9a\x2e\x22\x7b\x80"
        "\x70\x17\x55\xb0\xbc\x70\x6f\x32\x25\x5c\x8c\xd6\x19\xfa\x99\x5c\xc7"
        "\x64\x9f\x28\x33\x73\x61\xa6\x2c\xff\x46\x66\x9f\xa4\xcf\x09\x5a\x2d"
        "\x14\x89\x87\xa9\xfa\xfa\x6e\x1f\xb9\xf5\x9b\x5a\xc5\xff\x10\xa4\xc6"
        "\x2e\x01\x87\xa3\xc7\x5a\x98\x3f\x7f\x52\x11\x14\x2c\x6c\x09\x17\x0a"
        "\x13\xe2\x9c\x20\x44\xe5\x56\x8b\xda\x80\x55\xce\xe4\x72\x2e\x44\x5e"
        "\x83\xea\x01\x30\x7c\x42\xcb\xe6\x3a\x5b\xc5\x29\xe1\x20\x0e\x58\x74"
        "\xf7\x50\x02\x75\xab\xac\xd6\xcc\x0e\x3b\xf8\xfd\x38\xab\x7b\xab\x39"
        "\xf5\x4d\x18\x0d\x60\x89\x2e\x2e\x3a\x71\x3a\x3e\x65\x4c\x89\xb8\xe9"
        "\xba\x44\x74\x90\x99\x91\x84\x45\x14\xc0\x4b\x65\x5c\x66\xcc\xd6\xf2"
        "\xa1\x7e\x29\xff\x69\xd3\x43\xeb\xac\x7a\xc5\xe1\x51\x0a\xd4\xff\x52"
        "\xe6\xa9\x32\xa9\x7b\xb0\xd8\x14\x25\x9d\xa6\x54\x50\x22\x15\x2d\xd6"
        "\x3f\x06\x21\x9a\x1d\x66\xec\x22\x78\xb6\x94\x87\x6e\xd6\x19\x5b\x05"
        "\x43\xb8\xc9\x28\x9b\x84\x38\xe8\xee\x57\xdd\x38\xbc\xdb\x04\x5a\x6f"
        "\xc4\xce\xde\x28\xef\xfa\xa0\x35\x4a\xfb\xd4\x19\x0f\xcb\xcc\xd9\xa0"
        "\xe9\x15\x08\xe4\x39\x9e\x0e\x30\xa0\xbf\xde\xdc\xc1\x94\x54\xb6\xdd"
        "\x7c\x27\x85\xa6\xe4\xfe\x74\xa0\xec\xe1\xd6\x83\xad\x07\xd7\x6e\xaf"
        "\xec\x02\xfb\x0d\x88\xde\xbf\xea\xcd\x35\x31\x41\x31\x85\xda\x0f\xfa"
        "\x4f\xb9\xb5\xe6\xd5\xa9\x16\xf7\xbb\x5d\x51\xef\xc8\xab\x61\xe4\x95"
        "\x3f\xc6\xb2\xd1\xe6\x70\x76\x9f\x3c\xa5\x6d\x51\xb8\x04\xce\xb1\x18"
        "\x27\x8a\xcc\x90\x42\x2e\x1f\x51\xe4\x48\xa2\x7d\x2f\xe4\xf9\x3c\x88"
        "\xcf\x7c\x61\x48\x47\x4b\xf6\x50\x90\x2d\xd6\xdd\x96\x54\x10\x44\x11"
        "\x3d\x24\x4c\xf9\x38\x15\x0e\xc4\x26\xe7\xed\x63\xe1\xf1\x53\xbb\xe3"
        "\x28\xf4\x23\x25\x52\xb1\x04\xc8\xde\xe6\x0b\x0c\x4e\x4c\x25\xf2\x60"
        "\x5e\x97\xcc\x6f\x42\x63\xd3\x2e\x83\x40\xbe\x2d\x16\x71\x37\x68\x23"
        "\x73\xae\x4c\xd5\x01\xfd\xc9\xc5\x35\x9b\x40\xf5\x28\x03\xa5\xe4\xc0"
        "\xe0\x4a\x5d\xe0\x41\x2c\x5c\xbd\x4d\x05\xe6\x13\x5a\x12\x09\xd4\xb2"
        "\xdf\xf5\x0d\x39\xe4\x81\xf1\xd1\xb0\x1e\xd7\x10\x04\xfb\x0c\x18\xe7"
        "\x36\xaf\x8a\xb1\x76\xf8\x33\xa4\x39\xa8\x5c\x91\x32\xe6\xd2\x29\x6f"
        "\x66\x57\x71\xc6\xa2\x84\xea\xdc\x08\xc9\x4f\xfa\x52\x0d\xcc\x37\xfd"
        "\x64\x26\xc1\x52\x36\x46\x99\x51\x4b\x15\xd4\xdf\x67\x32\xff\xf3\x98"
        "\x34\xe8\xba\x29\x68\x8b\x19\xdb\x27\xa9\x70\xd9\xd7\xfb\xee\x97\x3c"
        "\x76\xbe\xe0\x4f\xb6\x16\x49\x63\x96\x9e\xbd\xe0\xf7\x85\x60\x67\x81"
        "\xd6\x37\x26\x73\x6d\x8b\x60\xa7\x13\xd5\xf7\x22\x07\xa2\x3f\x6f\x00"
        "\x42\x0f\xdf\x24\xd1\x4c\x06\x9f\x36\xa7\xe2\x36\x62\x04\x81\xcc\x7a"
        "\x63\x85\x7c\xc1\x35\x5b\xac\x8d\x4f\x9a\x3f\x32\x78\x5a\xd4\xd9\xd8"
        "\x17\x19\x07\x7a\x81\x6b\x33\xb9\x80\x06\xc3\x22\xee\x47\x3a\xa9\xf8"
        "\xf8\x3f\xae\x86\xa4\xd4\x21\x10\x4b\x29\x8a\x9e\x42\x35\x7c\x44\xb7"
        "\x73\xe3\x50\x4b\x3f\x9e\xb5\xb2\x93\x30\x41\x1b\x77\x6b\x78\xfd\xb6"
        "\xdd\x97\x13\xdd\x1a\xee\x0c\xc9\xc7\xee\x8b\xd2\x3a\x50\xd4\xc8\xba"
        "\xba\xf6\xd7\x4b\xc2\x53\x77\x00\x9a\x8c\x57\xc9\x41\xf8\x0e\x58\xac"
        "\x08\xc9\x3a\x27\x56\x56\xcb\xad\x38\x64\xdf\x9e\x79\x13\x05\xd6\x61"
        "\x03\xab\x30\x98\x3b\x07\x55\x3e\xde\x5b\x5d\x5b\x0a\xab\x15\x7f\x80"
        "\x5e\xb6\xc1\x1c\x75\xdd\x7f\x29\x7c\x2c\xc9\x11\x05\x51\x13\x1a\x79"
        "\x71\x64\xde\xc4\x22\xb1\x37\x99\xf1\xc2\x61\x46\x4c\x76\x5a\x62\xc2"
        "\x01\xeb\x9c\x86\x86\xee\xe9\x46\x42\xd5\x9f\x42\x9c\xd1\x37\xcb\xa0"
        "\xd1\xa8\x12\x6d\xcd\xfc\x28\xea\x5c\x20\x15\x26\xc6\x11\x64\xa8\x6f"
        "\x48\x0d\xfd\xe0\xc6\x0f\xdf\x6a\xfd\x3c\xd6\x47\x19\xde\x1d\x89\xb5"
        "\xa3\x62\xe0\x58\x05\x4a\x9d\xb7\x3a\xaf\xfa\xc3\x24\xb0\x4e\x89\x03"
        "\x06\x0e\x1f\x14\xca\x4a\xc3\x1c\x82\x18\x30\x66\xe6\xd5\x81\x68\x5e"
        "\xfb\xe3\x45\x2a\x20\xa6\x65\x16\x6b\x03\x80\x82\x20\x77\x0d\x66\x05"
        "\x19\x71\xb6\x1d\x81\x14\x37\x6e\x22\xa4\x51\x1c\xae\x9f\xdf\x7b\xbe"
        "\xd6\x8b\xb9\xf4\x5b\x57\xee\xe1\xc1\x57\x75\x73\x0e\xf1\x43\x47\x31"
        "\xd7\xb8\x2a\x7c\xbc\xd6\x15\x53\x96\x26\x39\x84\xed\xfc\xea\x62\x19"
        "\x61\x89\xda\x0b\xa9\x90\x8d\x7d\x5e\xf5\x14\xd7\x5a\x3e\x1d\x4a\xe4"
        "\x26\x54\x36\x50\x83\x87\x3f\xc4\xce\x96\x9f\xa4\xfa\xc5\x1d\x64\x0b"
        "\xe8\xd9\x48\xbb\x94\x64\xd1\xa7\xe4\x94\xc8\xdf\x98\xbd\x5a\x56\x9f"
        "\xf7\xfe\x1a\xca\x54\x2c\x34\x61\x01\x48\xa8\xf1\xdc\x9d\x60\xff\x0f"
        "\x76\x12\x70\x57\x7f\x28\x6a\x36\x2f\x32\x16\x41\x84\xff\xce\x3a\xd1"
        "\x32\x63\x7e\x9f\x03\x81\xe9\xce\x76\xa1\x1f\x29\x6f\x9d\x1e\x83\x5c"
        "\xdc\x44\x92\x61\x04\xe1\xdf\x4d\x0a\x28\x2a\x84\xb9\xfb\xc2\x30\x64"
        "\xbf\xca\xb0\xd2\x21\xc6\xe3\x12\x4a\xe8\xba\x60\x22\xe6\x2f\x17\x0d"
        "\xcc\x2d\x65\x5f\x73\xb4\x0f\x83\xfd\x65\xf5\xc7\x05\xbc\x1f\x9e\x8d"
        "\xf1\x3a\xde\xad\xff\x9e\x1f\xe4\x66\x0a\x55\xbe\x7d\xc9\x69\xcf\xff"
        "\xae\xd6\x07\x19\x01\x62\xdc\xd0\x9d\x0c\xd8\x6a\x29\x7b\x22\x14\x2b"
        "\x88\xf0\xeb\x28\xdd\x1a\x45\x15\x2a\x4f\x4f\x2d\xca\x0d\x96\xd3\x9f"
        "\xa5\x94\x34\x90\x40\xf4\x86\xcd\x48\x6a\xf6\x19\xb7\x08\x32\x36\xcf"
        "\x90\x32\x4c\xdd\xc6\xf1\xed\x0f\x6a\x10\x3c\x8d\x93\x6d\x7f\x2f\x31"
        "\xd4\x20\xef\x50\x93\x18\x38\xe6\x67\x21\xbf\xf7\x49\x46\x17\xb6\xb4"
        "\xbc\x38\x5f\x3e\x51\xb3\xf8\x1c\xf5\xd6\x95\x3a\xc7\xfd\xdc\x0f\x34"
        "\x66\x68\x29\x11\xb3\x8b\xc7\xf0\x82\xe0\xc1\x8e\x3a\xe0\xba\xdf\x7f"
        "\x3f\xd3\xe1\x86\xeb\xc2\xba\xb7\x1f\xa2\x6f\x77\xbb\x14\xcd\x97\xe6"
        "\x76\x1c\x93\xc8\xc2\x58\x87\xc0\xef\x1f\x3d\xc1\xd8\xd8\x6c\xe0\xfb"
        "\x73\x19\x0f\x66\xf4\xde\xca\x77\x97\x7e\x8d\x60\x64\xbf\xee\xac\x3f"
        "\xad\x2b\xc5\x04\x88\xc1\x44\xe2\xa1\xa8\x2f\xcc\x1e\x1c\x12\xac\x54"
        "\xbf\x3e\x2d\x46\x8e\x8f\x53\x24\x1e\x4a\x6a\xd9\xe4\x66\x74\x6a\x45"
        "\xb0\x53\x45\x2d\xed\x5c\xaa\x20\x46\x18\x81\xd7\x8d\x82\x35\xe9\x86"
        "\xba\x8b\x77\xe8\x36\x01\x65\x5d\x26\x50\xbf\x1b\x64\xce\x17\xc7\x53"
        "\x14\x21\x6b\x43\xbb\xd1\x10\x1a\x2e\x12\xe5\x75\x25\xbb\x7d\x3b\x13"
        "\x6a\x70\x63\x5b\xda\xc8\xaf\x24\x36\x7a\x24\xce\x2f\xe2\xa7\x2e\xf2"
        "\xb0\xe5\x6f\xf8\xdc\x62\xa8\x29\x46\xf8\x6f\x9b\x6b\x14\x18\xa8\x9b"
        "\x19\x71\x37\x2d\xfe\x7d\x5c\xe2\xe6\x61\x1b\xef\xff\x72\x1f\x04\xa1"
        "\x9b\xce\x7f\x90\xb1\x55\x1a\x4c\xde\xad\x13\x66\x62\xc5\x05\x13\xfd"
        "\xde\x6f\x9d\x4a\x19\x9c\x39\x07\xed\x87\x99\xf2\x31\xf5\x4d\xd8\x34"
        "\x7c\x71\xd8\x29\xff\x8d\xdc\x5d\x96\xb5\xaa\xc2\xfe\x58\x65\x2c\x81"
        "\xff\x7f\x54\xe2\x56\x81\x19\xdf\xf2\x76\x3e\xf4\x35\xaa\x42\x06\x30"
        "\xda\xcc\x7e\x94\x14\x34\x0e\xe8\x68\x8f\x46\xc7\xa8\xab\x96\xd8\x60"
        "\x93\x76\x41\x04\x2b\x3c\xdf\x68\x57\xff\x1d\x2d\x4e\x47\xce\xc1\xf2"
        "\x3e\x65\xfe\x54\x1f\x38\xcb\x96\xb1\x32\x66\x6f\x99\x90\x02\xe8\x9c"
        "\xd1\x89\x6c\xa5\x8c\x2e\x63\xb8\x73\x82\xe1\xa6\xc1\xee\x9a\xfa\x56"
        "\xcf\x3b\xa9\x23\xfa\x9c\x98\x9e\x20\xbf\xf3\x13\xf3\x72\x52\x63\x2f"
        "\xdc\xff\x03\xfb\xdd\x2d\x33\x4e\xe9\x3b\xaf\x75\xc1\xbd\xae\x30\xfe"
        "\xaa\x81\xfb\x2a\xc1\xb6\x3c\x42\xdd\xa0\x6f\x20\xce\x8c\x9d\x00\x3e"
        "\xb3\xef\xed\x79\x31\xde\xf3\x42\xfb\x87\x4f\xce\x92\x76\x3f\x6f\x47"
        "\x7c\x7f\x58\x9b\x75\xd2\x12\x94\x19\xfc\x4c\xb7\xa8\x89\x3a\x1d\x3f"
        "\x94\x53\x3e\xd9\xfd\xf9\xf2\x1f\xc2\x54\xfd\x80\xaa\x74\x75\x08\x33"
        "\xd3\x90\x32\x7a\x21\x07\xe7\x61\x24\x09\x28\xd3\x5a\x36\xc5\xea\xca"
        "\x61\xfd\x84\x81\x16\xb8\xdd\x7e\xc8\x15\x79\x28\xbc\x2d\xd8\x7f\x77"
        "\x56\xaa\x51\x7c\xf6\xa6\x1d\x20\x09\xfd\x4b\xa0\x57\x9c\xa3\xb3\x12"
        "\x9c\xfd\x54\x03\x54\x6f\x5a\xb6\xd0\x57\x57\x99\xa0\x08\xfc\x67\xda"
        "\x96\x58\x42\x76\x36\xd8\xf8\x06\xd9\xb8\xca\xd6\x4a\xee\x43\x8d\x0a"
        "\x9b\x45\x95\x7f\x31\xa5\xaf\xe3\xed\x89\x4a\xdd\x9a\xca\xdf\xd3\x47"
        "\x24\x60\x99\xc6\xff\x0b\x4e\xc6\xf1\x9a\xc6\x15\x57\xda\xf8\x73\x9e"
        "\x52\x81\x85\xab\x14\x68\xca\x72\xd6\xd7\x2e\x4f\x02\x6e\x37\x1e\x54"
        "\x0b\x77\x4b\x65\x76\xdf\x30\x14\xdc\xc9\xe9\x1b\x2c\xd1\xf0\x40\x3a"
        "\x4f\xca\xa6\x62\x7b\x22\x68\x2b\xb5\x4f\x92\x15\x0c\x29\x17\xac\xae"
        "\xe1\x97\x2b\x2b\x03\xbc\x2b\xd3\x7f\xdb\x9e\x73\x52\xc6\x54\xd9\x4e"
        "\xf1\x96\xb7\x22\x9e\x4d\xa5\xee\x62\xb7\xd3\x95\xec\xdd\x51\x77\xf2"
        "\x56\x32\x42\xea\x49\xff\x78\x15\x1a\x4a\x81\x6a\x94\xe8\x9b\x03\xf4"
        "\x1c\x7e\x66\x84\xf8\xbe\x3e\x58\x02\xe9\x33\x8e\x7c\xbd\x3b\x43\xf7"
        "\x08\xc0\x62\xf9\x44\xa5\x9f\x31\xb0\x2c\xa9\xa1\x77\xe6\xb6\x81\xac"
        "\xce\xe8\x78\x5d\x24\x67\xd2\xd7\x86\x36\xbe\x43\x30\xfe\xba\xa3\xf6"
        "\x90\x7d\xb0\x79\x92\xa2\xde\x74\xe4\x59\xf3\xae\x8e\xe6\xad\xae\x20"
        "\xcb\xc7\x5a\xab\xd2\xd5\xd3\x42\x4d\xe0\xdd\xcc\x3d\xdd\x98\x1c\x3a"
        "\x49\x66\xc5\x7f\x8f\xdb\x1c\x42\xdb\x87\x39\x5f\x0b\xc8\x00\xff\x8d"
        "\xdb\x4c\x22\x8a\x7d\x79\x3d\x8a\x99\x78\x85\x49\x4a\x85\x78\xf5\x43"
        "\x3d\x3f\x82\x88\x6e\xa5\x73\x64\x1b\xf1\x60\x65\xef\xbc\x25\x71\x8c"
        "\x88\xf7\x27\x7c\xe0\x4c\x94\xaf\x56\x0d\x8d\xeb\x79\x68\x49\x6f\x84"
        "\x9d\x3f\xad\x78\x74\x12\x72\xb0\x8b\xf7\xae\xc3\xf3\xc7\x77\x42\x8d"
        "\x3b\x8b\x89\x73\x33\xae\x5a\xfb\x68\x23\xaf\x63\xcb\x73\x47\x60\x1e"
        "\xe2\xe8\xd4\xe2\x1b\x21\xa1\x2e\x6d\x42\xf6\x6a\x1a\xac\x26\xd2\x96"
        "\xbc\x68\xa9\x98\xd8\xba\x17\x9e\xd5\xf7\x56\xc2\xef\xd8\xa7\xac\xc0"
        "\xe3\xf0\x80\x93\xbb\x4a\x83\xd3\x7f\x15\xb4\xfe\x07\xc9\x08\x58\x05"
        "\x8a\xd1\xff\x0e\x21\xbb\x7b\xf4\x36\x30\x79\xc5\xd4\x52\xdb\xa5\x97"
        "\x2b\x21\xc8\xf4\x1d\xaf\x6f\x11\xa5\x1d\x32\x1d\x3c\x1d\x54\x41\x90"
        "\x23\x80\x36\xd9\x07\xd9\x65\xff\x46\x9c\xe4\x89\x5e\xb7\x67\x5f\x3e"
        "\x94\xa1\x5f\x83\xb8\x37\xb8\x92\xa4\x03\x90\xd8\x7d\x76\xe9\xb1\x5e"
        "\xda\x02\x36\x62\x99\xd3\xdd\x93\x94\x34\x66\xbc\xee\xb2\xf9\xe4\x65"
        "\xad\xcc\xc0\x8e\x1a\x02\xc3\xac\x01\x81\x59\x31\x62\x7e\xd3\x27\xe0"
        "\xff\xbe\x09\x56\x32\x21\xa3\x65\xb8\x8c\x4f\x24\x49\xbd\x36\x34\x92"
        "\x0d\x5b\xfb\xde\x7c\xdc\x92\xc4\xcb\x16\xa5\x79\xf3\x5f\x07\xda\xfc"
        "\x87\xce\x6c\xe4\xde\x7b\xf9\xe8\xff\x0e\x80\xb8\x1c\xda\xb8\xf2\x16"
        "\x4a\x25\xa0\xa6\x92\x96\x79\xce\x9a\xe0\xdc\x2a\xc7\xed\x41\xa7\x87"
        "\x44\x66\x76\xf0\x91\x59\x75\x51\xdc\x2e\x8c\x05\x42\x24\xba\xc6\x65"
        "\x2b\xba\x5f\xb6\x75\xc0\xb2\xc9\x4d\x2f\xaa\xc1\x60\xf1\x1b\x7b\x96"
        "\xfc\x96\x41\x5a\xca\x8a\x47\xfa\x03\x65\x8b\x8a\xfa\x24\xb6\xbd\x97"
        "\xf7\xdb\xee\xad\x9a\xe5\xf7\xec\x1c\xb0\xd0\x00\x05\x5f\x41\xa5\x04"
        "\x3c\x6c\x4c\x97\x21\x23\x98\xb1\x68\xb5\xcb\x9e\xe6\x50\x72\x6e\xab"
        "\xcc\x31\xb6\x71\x2e\x81\x5f\xda\xae\x77\x88\x53\x50\x88\x4f\xb3\x6d"
        "\x6d\x54\x44\xd5\xe5\x50\x0a\x7d\x63\x6d\x4e\xce\xd1\x4b\x9d\x41\x1c"
        "\x76\x5b\x36\xa4\xbe\x06\xca\x9b\xe2\x96\x5d\x6d\x6c\x06\xc3\xb6\xbc"
        "\xb3\x8b\xab\xeb\x29\x99\xee\x71\x29\x5d\x48\x92\x6b\xf6\xe3\x93\x63"
        "\xfa\xbf\x74\xde\x5e\x57\xaa\x0b\x59\xf9\xdd\xde\xca\x14\x2d\x0c\x50"
        "\xab\x7f\xf1\x98\x19\x6c\x69\xc9\x71\xe6\xab\x59\x12\x20\xf4\xe4\x2d"
        "\x65\x25\xe2\xdb\xd9\x9b\x6c\x57\x94\x9c\x85\x4e\x4e\xe0\xe4\x58\x1f"
        "\x9e\x3e\x16\x0b\x3f\x66\xb0\x1f\x23\xf4\xd0\x47\x2c\x0a\x1f\x30\x78"
        "\x37\xac\x8d\xac\x0a\x25\x7d\x09\xab\x82\x97\x51\x48\xdc\xd7\x64\xfe"
        "\x63\x59\xa5\xf2\x1b\x9c\xbe\x2a\xe7\xb9\xb2\x77\x48\x9a\x8b\x32\x85"
        "\xb8\x28\x9a\x84\xff\x85\x45\x08\xb4\x48\x8f\xfc\xf6\x8f\x47\xec\x7a"
        "\x5c\x18\xa8\xc3\xd0\x6e\x26\xb3\x2f\x75\x4a\xc7\x4e\xa8\xe9\x3a\x55"
        "\x41\x47\xfd\x3b\x3d\xaf\x1f\xbe\x92\x4e\x2e\x38\x9c\xac\x13\xa5\xf8"
        "\x0f\x3a\x21\xdb\xd2\x50\xd3\x91\x7f\x7b\x5a\xcf\xc7\x39\xa6\x3f\x2b"
        "\x3d\x6b\x3f\x09\x9e\xfb\x4b\xe7\xa8\x42\x21\x5c\x89\xfc\x87\xbd\x85"
        "\x50\xd1\x1b\xa2\xa4\xaf\x0f\x11\x1a\xb1\x24\x50\x3b\x26\xfe\xea\xe3"
        "\xbe\x3e\xe2\x41\x68\xdd\x45\x53\xa2\x26\xb9\x16\x8e\xdb\x11\xc3\xe6"
        "\x1b\xc8\x50\xad\xf9\x95\xb4\xd6\xf1\xaa\xce\x6d\xb0\xb9\x1f\x80\x5c"
        "\x3d\x17\x89\xa3\xe6\xb4\x70\xe5\x47\x09\x68\xf4\x29\xd5\xb0\x5c\x8f"
        "\x76\xca\x29\x81\xe3\x7f\x5b\xde\x4a\xd0\x0a\x09\x75\x5c\x76\x77\x4e"
        "\xad\x7d\x93\xf3\xf4\x12\x55\xb1\xd5\x61\x52\xe3\x69\x9b\x13\x3b\x2e"
        "\x0b\x27\x74\x27\xc9\x92\x32\x3d\x1b\x4d\x8c\x43\x84\x34\xe9\xe9\x01"
        "\xdd\xd4\x37\x88\xf8\x0c\xb9\xa9\x75\xe9\xdd\x16\x71\xce\x16\xbe\x5f"
        "\xf8\x03\x3d\x5d\xa8\x24\xf0\x0f\xd7\x8b\x54\x0e\xdb\xcd\x69\xa2\xe9"
        "\xaf\xf0\x3e\x31\xaf\x9a\xfe\xfb\x80\x94\x34\xf5\x2b\x4a\x12\x39\xfd"
        "\xd2\x41\xed\x3a\x26\x82\x58\xad\xdd\xe1\x9d\x17\x24\x15\x5a\x1a\x4c"
        "\x87\x7b\xd5\x9b\x06\x59\xb7\xa7\x86\x88\x6f\x6f\xfc\xb5\x99\x9d\x1f"
        "\x9c\x00\x7d\x61\x50\x20\x92\x6f\x71\x65\xa9\xdd\xd4\xaa\xa3\xc7\xb6"
        "\x31\xd3\x0c\xc9\x51\xe3\x28\x13\x1d\x99\x28\x2a\xc0\x6a\x18\xf8\x83"
        "\x73\x09\x23\x20\xea\x53\x08\xf0\x6c\x37\x6e\x71\x1a\xec\xda\x4c\xd1"
        "\xc2\xb6\x39\xd9\xea\x7a\x26\x13\xd4\xe9\xea\xa9\xa0\xef\x72\x77\x4f"
        "\xde\xc6\x22\xf7\xd1\x31\xb4\x51\x35\xd5\x77\x89\x7b\xf6\x86\xb4\x60"
        "\xa3\x71\x08\x30\x70\x13\x9e\xa5\x44\xbd\xa1\x50\x12\x25\x1d\x6c\x8e"
        "\x71\x63\xc2\x54\x12\x84\x1f\xae\xfb\xa7\x67\x65\x64\x8c\xa7\xcd\x1b"
        "\x42\x34\x03\xa6\x54\xb6\xb5\x75\x45\x88\xae\x6c\x30\x96\x21\x47\x7d"
        "\xb2\x0f\x7c\x92\x36\xaf\x1e\x42\x2e\xbd\x3f\xb6\xd6\xa7\x12\xe7\xa6"
        "\xd0\x0d\x58\x41\x6b\x7d\x65\xa5\x3a\x25\x14\xbf\x51\xbe\xdf\xe9\x20"
        "\x7f\x16\xa4\xd7\x94\x18\x60\x03\x89\xb9\x8e\xa8\xb9\xe0\x6b\x8d\xa7"
        "\x08\xa8\x6f\x19\x1e\x56\x79\x25\xaf\x39\xa0\x9a\xc9\xfd\x79\x02\xe8"
        "\xf8\xe7\x75\x67\xba\xf1\xb7\x5c\x05\xba\x1e\xb7\x08\x9b\x42\x48\x01"
        "\x40\x5a\xfc\x98\x2a\x8d\x79\xc8\x0f\xad\xa1\x84\xa1\xab\x3b\xab\x52"
        "\x6a\x3b\x0a\x5e\x20\xd2\xdc\x6b\xcd\xd2\xc5\xcb\x7c\x49\xf7\x35\xf3"
        "\xe8\xf4\xd3\x6a\x38\x8c\xa8\x05\x87\x6a\xe0\x8f\x0e\x3a\xcc\xa5\xdd"
        "\x86\x4c\x1f\xa1\x55\x20\x68\xbf\x79\x90\x95\x22\x14\x80\x37\x4f\xd2"
        "\xdc\xae\xdd\xb7\x4b\xe9\x34\x70\xef\xf4\xfe\x27\x8e\x19\x0f\x0a\x13"
        "\x1f\x32\x34\x0a\xda\x9c\xca\x51\x8a\xf7\x69\xf4\x29\x43\x87\x5f\x4c"
        "\x57\x07\xbe\xee\x21\x79\x77\x1d\xa2\x1c\xd6\x64\x05\xb9\x97\x36\x48"
        "\xbd\x04\x7a\x51\x6d\x1c\xf9\x02\xfa\x1f\x0f\xcd\xcb\xc3\xf4\xc1\xf2"
        "\x0f\xc2\x2f\x9a\x7e\x9f\x4c\x3a\x52\x57\x63\x99\x60\x4c\x46\xf8\x3e"
        "\xde\x44\xf5\x42\xd0\x6d\x54\xe6\xe8\xa1\xe6\x93\xa2\xcf\xcb\xb1\x6c"
        "\x17\x8d\x1b\xac\xe9\x76\x13\x3e\x72\xcc\x45\x33\xbd\x02\xb1\xc4\xec"
        "\x2c\xc2\x20\x97\x43\x5a\xff\x5a\x68\x2c\xa7\x22\x74\x14\x89\x54\x50"
        "\x83\x15\x60\xfa\x68\x24\x93\xf4\x81\x4c\xe8\xfb\xdb\x19\x0f\x8c\xe2"
        "\xb5\x33\xed\x95\x82\x63\x85\x11\xbd\xa9\x3a\xea\xe5\xd0\x69\x0f\x74"
        "\x5b\x78\x8d\xb6\x22\x86\x4b\xa3\xfb\x60\x95\x2f\x11\x94\x27\xfb\xe6"
        "\x67\x54\xc5\xc0\x38\xc5\xfb\x2c\xb8\x7c\x32\x6d\x65\x86\x2e\x35\x3c"
        "\x14\x95\x0b\xd1\xfa\x7c\x70\xe3\x63\x23\xe9\xcf\x90\xc8\x1f\x62\x75"
        "\xe5\x9c\x79\x26\xac\xac\x15\x60\xa0\xb6\xbb\xc7\xa8\x50\x81\x7f\x2e"
        "\xff\xa1\x9d\x48\x53\x15\xa2\x19\xd4\x9e\x29\x3f\x87\x12\x78\x29\x4d"
        "\x02\x76\x5c\xf7\x2c\xaa\x2f\x43\x8d\xe3\x33\x7e\xd2\x05\xbf\x68\xff"
        "\x6d\xda\xaa\x5e\x4b\x80\xde\x5f\xba\x02\x2d\xfc\xf9\xcf\x07\x4a\x31"
        "\x96\x78\xdf\x11\xeb\x77\xb3\xef\x66\xe5\x12\xb6\x7b\xa5\x18\x22\x65"
        "\xa6\x0e\xaf\x45\x76\x91\xe9\x73\xd2\x3c\xba\xf6\x00\x05\x37\xf8\x86"
        "\x69\x50\x74\xeb\xb6\x16\xf9\xcd\xad\x9d\xe7\xc6\xfe\x9e\xcf\xbd\x13"
        "\xd5\x37\xd6\x4c\x34\xa7\xc9\x0c\xa5\x6b\x50\xe6\x0d\x6a\x70\x67\xe3"
        "\x91\xe6\x35\x61\x79\x3e\xdf\x6e\xd3\xc2\xee\xb8\x55\x59\x09\xa5\x9c"
        "\xe7\x3d\xa1\xf0\x96\xd4\x1f\xb4\x2d\xe4\x44\x94\x12\x83\x24\xa9",
        4096));
    NONFAILING(*(uint8_t*)0x20008bc0 = -1);
    NONFAILING(*(uint16_t*)0x20008bc1 = -1);
    NONFAILING(syz_mount_image(
        /*fs=*/0x20000180, /*dir=*/0x20000100,
        /*flags=MS_I_VERSION|MS_PRIVATE|MS_SYNCHRONOUS|MS_STRICTATIME|MS_REMOUNT|MS_RELATIME|0x240c*/
        0x1a4243c, /*opts=*/0x20007980, /*chdir=*/0, /*size=*/0,
        /*img=*/0x20000000));
    break;
  case 13:
    NONFAILING(*(uint32_t*)0x20006fc0 = 8);
    NONFAILING(memcpy(
        (void*)0x20006fc4,
        "\xb3\x46\xc1\x97\x8c\xd8\xac\x67\x4f\xee\x0e\xf8\x66\xca\x1f\xa3\x81"
        "\x02\x33\x12\xf7\x53\xa3\x64\x98\x27\xff\x93\x1a\xaf\x52\x0e\x0e\xcc"
        "\x65\x75\x04\x00\x03\xfa\xb0\x7e\xb2\x24\x05\xf9\x40\xfc\xb6\x67\xf0"
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        "\xc8\x1a\x08\x28\x27\x21\x94\x59\x3b\xc7\x5c\x2f\xe1\xdd\xc3\x05\x53"
        "\xe4\xf1\x5d\xf1\x0d\xe1\xe6\xa9\x48\x70\x64\x2d\xfd\x8d\xea\x3b\xff"
        "\xd9\xb6\xa2\x3d\xc7\x65\xcc\xc5\x9d\x27\xb0\x7d\xe4\xeb\xe7\x51\x54"
        "\x6a\xfe\x5a\x4b\x9c\x5b\x31\x09\x86\x24\xd9\xfb\xa7\xd2\xa0\x09\x72"
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        "\xdb\xf9\x5b\xf1\x57\x34\x0d\x38\x7d\x0b\xe8\x7c\x37\x57\x31\xfe\xe9"
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        "\xc1\x7e\x8a\x85\xe3\xf9\x62\x62\x0b\xad\x2c\xf5\xf3\x2f\xab\x7f\x4e"
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        "\x2d\xb8\xf0\xb5\xd9\x2a\x0f\xf7\xae\xf1\x13\x22\xec\xa7\x94\x6d\x8d"
        "\xa2\xee\x9d\x6c\xd3\x80\xb1\x53\x5c\x7b\x3a\xd2\x69\xa5\x16\xd8\xc0"
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        "\x3f\xf5\x86\xa5\x2c\x88\x1c\x88\x25\x59\x2f\x3a\x57\xa0\x37\x54\xcf"
        "\xb6\xcc\x88\xb7\x3c\x9a\xa2\xc5\x8a\xe4\x36\x23\xc6\x08\x65\x1d\x19"
        "\xeb\xe3\x78\x2f\x21\xe5\xa5\x61\xdc\x8d\xfa\x17\xea\x20\x78\xea\x59"
        "\xba\x90\xc6\x4e\x2d\x98\x99\x8f\x29\x2d\x0c\x72\xe3\xba\xdf\x3c\x38"
        "\xaf\x4b\x95\x59\x5d\xda\xfb\xe8\x8d\xa0\x10\x41\x9e\xc7\x66\xf1\x4d"
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        "\x2b\xea\x67\xa9\x36\x85\xc3\xcf\x34\xf0\xce\xb0\x42\x96\x17\xe2\x5c"
        "\x7f\xfc\x18\x0d\x56\x80\xc7\x8e\xca\x89\x67\x15\x0f\xb4\xbc\x7d\xc8"
        "\x4e\x87\x2b\x62\x8f\x6d\x55\x9c\x4f\x58\x71\xb9\x02\x35\xf5\x53\x50"
        "\x94\xec\x37\x23\xb1\x35\xbc\xda\x0e\xb1\xef\x9b\x3d\xc8\x90\x44\xd3"
        "\xf6\x94\x25\xaa\x94\x8c\x3a\x00\x6e\x91\xd8\x9e\x75\x29\x6b\xbc\x52"
        "\xc5\x7f\x38\x92\x81\x5c\xe9\x0b\x13\x4a\xb9\x44\x49\x99\x42\xb0\xee"
        "\x39\xfa\x0c\x63\x70\xfa\x3d\x1f\x05\xb8\x73\xdb\xa5\x25\xc4\x7a\x7d"
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        "\x97\x9c\xba\xa4\x30\xed\x25\x7f\x6f\x11\xc7\x94\xb5\xf7\x5a\x36\xd2"
        "\xf3\x2c\xd5\x05\xe4\xf4\xd4\x0e\x41\xe1\xab\xab\x4f\x28\xaa\xfe\x37"
        "\x35\x13\x74\xf8\x05\xd8\xfd\xab\x25\x0e\xfb\x9c\x2a\x44\xa5\x20\xde"
        "\xad\x55\xb1\xfd\x61\xf0\x0b\x2a\x0a\x94\xec\xf7\x56\x3e\x40\xb8\xad"
        "\xd0\x51\x8c\x35\x92\x60\x75\x6a\x05\xc6\xdc\x38\xbf\x49\x6d\xd7\x0a"
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        "\x60\xf8\xb0\x04\xd1\xe7\x03\xa7\xbb\x1c\x41\x23\x1a\x40\xf1\x63\x7e"
        "\xb8\xb0\x06\x9e\x31\x30\x7c\x6e\x61\x6b\x92\xd9\xeb\x75\x1f\xd3\x5b"
        "\xae\xdf\x70\xf1\xfc\x3d\x43\xe1\x2c\x80\xb8\x5d\x5b\xd3\xf8\xfe\xdf"
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        "\x67\xad\x19\x1d\x88\x92\x50\x6b\xc6\x93\xfd\xfb\x05\xc8\x23\xc8\x93"
        "\xe8\x9c\x5d\x17\x11\x9d\xf0\x30\x4e\xb1\x38\xc1\x28\x90\x69\x1f\x87"
        "\xc8\xb6\x0e\x4a\xfa\x50\x5b\x44\xa7\x9f\x09\x56\x4a\x1e\x7b\x78\x6b"
        "\x2b\x28\xcd\x41\xcd\x40\x2b\xef\xff\x2e\x87\xe2\x30\xb8\xf4\xe6\x55"
        "\x1e\x01\x13\x61\xa6\xfc\x2b\x14\xdc\x63\xb6\x27\xd9\x07\x19\x5f\xd8"
        "\x62\x45\x0a\x23\xea\x18\xfa\xea\x53\xba\x7b\x88\x3e\x19\xe1\x12\xf4"
        "\x5e\x5e\xa8\x0d\x78\x9c\xc2\x74\xd0\x20\x6d\xad\x5b\xd1\xd1\x63\xc6"
        "\xbc\x54\xae\x18\x7e\x75\xe4\x3a\x0d\xb5\x68\xbd\x77\xb4\xcf\x13\x04"
        "\x93\x1d\xf9\x82\xcd\xdb\xe1\x51\x18\xa6\x4a\x4f\x73\xd5\x42\x87\xcc"
        "\xb3\x11\x79\xa7\xdc\x42\x8c\x73\x77\xc7\xe7\x5c\x6b\x45\x2a\x25\x39"
        "\xe0\x36\x4f\x2c\xf5\x8b\x04\xe2\x27\xe9\xca\xec\x72\x04\x89\x5e\xf4"
        "\x6c\xf9\x87\xd9\x32\xdd\x59\xe6\x62\x9b\x58\x79\xd2\x66\xd5\x4a\xc0"
        "\x59\xb4\x99\x94\x3f\x42\x71\x1b\x35\xc8\x5c\xe0\xfa\xae\x31\x64\xe0"
        "\xd9\x3b\x64\x77\x2e\x28\xbb\x03\x79\x52\x6d\x67\x64\x02\xf2\x18\x86"
        "\xa9\x3b\xed\xab\x99\xf9\x04\x6f\xfe\x06\x08\xcf\x34\x61\x9e\xcd\xb8"
        "\x21\xcb\xd3\x00\x93\x84\x2c\x4b\x08\x6f\x82\xed\x41\x8a\x62\x7b\xa3"
        "\x3e\x2e\x3c\xe4\xa7\xef\xa7\x60\x1f\x83\x11\xc5\x49\x8c\xf3\x86\x58"
        "\x01\x3d\x38\xac\x6f\x82\x57\xf2\x66\x44\x04\x88\x56\x14\xc8\x8c\xd0"
        "\xbc\x84\x90\x1d\xfc\xea\xeb\x98\x0c\x37\xe3\xdd\x4c\xde\x43\x26\x0c"
        "\xf7\x66\x29\x3b\xd3\xa6\xdf\xa0\x18\x6a\xeb\xda\xa8\xaf\xf0\x86\x68"
        "\xb1\x07\x0c\x26\xab\x60\x41\x75\xae\x1f\x13\xa5\x61\xd3\x13\x7d\xd0"
        "\xd3\x9f\x64\x10\xdb\x5d\xf4\xa0\x10\x17\x34\xf9\x92\x16\x2f\x9b\x03"
        "\x48\x8f\x88\x4e\x05\xdc\x03\x59\x7a\x90\x77\x32\x44\xf8\x8b\x75\x93"
        "\xb4\xe1\xd4\x1d\x29\x46\x0a\x99\x31\x67\xec\x3b\xb0\xa4\x8a\xd5\xf8"
        "\xf8\x68\x2c\x3b\x64\x78\x86\x30\x7a\xc3\xa5\x81\x84\x87\x4a\x3a\x8c"
        "\xa4\xb1\xbd\x9f\xb5\xd7\xde\xb6\xb8\x1d\xe8\xc6\x09\xc0\xf6\x27\x87"
        "\x29\xeb\x61\x5a\xc1\xe2\x82\x5b\x20\x68\xa2\x77\xbc\xc4\x91\xbf\xf0"
        "\x55\xe2\x64\x8d\xa0\x0f\x16\x18\x2f\xcf\x73\x63\x7a\x43\xc4\x48\xf6"
        "\x67\x53\x2c\x08\x8a\xbf\xff\x7b\xd4\x05\x57\x75\x4f\xaf\xcb\x29\x71"
        "\x49\x86\xaa\xc6\x42\x71\xa8\x1e\xb6\x6e\x6a\x67\xf9\x52\x53\x5a\xaa"
        "\x73\xa0\x42\x5e\x8c\x2c\xb2\x78\x32\x0e\xcd\xdc\x2f\x2c\x12\xa3\x9e"
        "\x9f\x25\x73\x8e\x1c\xd4\xa7\x47\x8b\xf9\xd3\x01\xa5\xf2\x91\x00\xac"
        "\xd3\xbb\x9c\x9d\x4f\x3a\xc9\x93\xd6\x3f\x56\x6c\x74\x29\xfd\xe5\x83"
        "\x95\x45\x1f\x64\x2d\x27\xdf\xb3\xc5\x5e\x42\xe4\xb9\x5f\xcb\x0a\xcd"
        "\x3a\x1f\x16\x0d\x18\xd0\xf2\x63\xcf\x30\xb8\x7f\xe5\x50\xab\xe6\xdb"
        "\x89\x00\xd7\x81\xdb\x64\x68\x6d\xeb\x87\xb7\xa9\x41\x55\xc9\x0e\x0f"
        "\xfa\x02\x73\xd3\xb9\xa9\x5c\x47\x3d\xd2\xe7\xa7\x8e\xfd\x30\x2b\x8e"
        "\x6e\xc3\xcf\xb3\xc2\x13\x1f\x1c\x30\x7a\x36\xbb\xc1\x48\x25\x7a\x96"
        "\x53\xa3\xd3\x30\xed\x0e\x32\x4e\x78\xf5\x08\xe3\x5e\x6d\xc5\xcd\x43"
        "\xd4\xdf\xd1\xd3\x4c\xb1\x29\x3b\x51\x25\x4e\x41\x5a\xb1\xb7\xec\x7c"
        "\xf4\x24\x7d\x08\x9e\x1a\x9f\x5f\x38\x94\x22\x7e\xe4\xca\x92\x6d\x24"
        "\xa5\x9e\x9b\x10\x5a\x31\x60\x1d\xcf\x9a\x2f\xdc\x24\x68\x69\x04\xa0"
        "\x23\xeb\x60\x31\x7a\x2f\x8f\xde\x2c\xf1\xcc\x69\x33\x11\x73\xa9\x3e"
        "\x66\x39\x1c\x71\x42\x09\xcc\x8d\xcd\xff\xe3\x77\xf6\x97\x3c\x47\x16"
        "\xd1\x48\xa5\x45\xaf\xd4\x0e\x72\x51\x17\x8c\x23\x28\x61\x29\x72\x06"
        "\xb3\xd5\xfa\x21\x8d\x2a\xce\x14\x63\xe0\x93\xa3\x47\x30\xa2\x7f\x4f"
        "\x35\x77\x82\x6a\x48\x56\x18\x24\x7d\xbb\x6c\xc2\x48\x29\xb4\xeb\xd6"
        "\x7b\xf9\x0b\xd6\x29\x75\x4e\x79\xae\x61\x43\x93\x5b\x59\x8b\x25\x40"
        "\xef\x45\xd6\xd2\x65\xac\x1a\xc3\x41\x07\xa4\x37\x45\xaf\x8e\x75\x14"
        "\xab\x51\x48\x98\xb7\x9a\x8f\x44\xb6\xb7\x76\xc9\x8d\xf4\x4c\x77\xa3"
        "\xc6\x3e\x8e\x14\x14\x20\x9f\x27\xc4\x6d\xfe\x71\xa1\xb1\x23\xac\x79"
        "\x5f\xb5\x4b\xdf\xf1\x5e\x51\xa9\xf8\x4d\x02\x5a\xe8\x6f\x92\xae\xb5"
        "\xff\xa2\x63\x93\x56\xca\x6f\xa5\xd4\x31\x58\x40\xa9\xcb\x36\xdd\x9a"
        "\x10\xc6\xb6\x36\xf7\xc6\x9c\x75\x31\xf9\x06\x07\x78\x45\xd9\x42\x76"
        "\x80\x3f\x3c\xe0\x68\xd0\xeb\x7e\x2d\xbc\x1b\x14\xdb\xc4\x96\x01\xa1"
        "\xe9\xb3\x80\xea\x3e\x37\x8b\xd1\xeb\x42\xac\xb6\xf3\x62\xbe\xdd\x98"
        "\xdc\x36\x99\x2b\x28\xb2\xc0\x00\x33\x4c\x11\xf3\x51\x83\x2e\xa2\x49"
        "\x82\x99\x3f\xac\x27\x8e\x2a\xf2\x34\xff\x35\x32\x25\xb3\xf1\xb7\x0a"
        "\x7c\x27\x45\xda\xc1\xf2\x62\xd4\xd6\xb8\x67\x60\x1d\x15\xe6\x91\xd3"
        "\x84\x71\xd3\x4e\xd9\x2f\x44\x7c\x32\x58\xd5\xdb\x6f\x5f\xc3\x77\xab"
        "\x8e\x58\x78\x1f\x08\x54\x56\x93\xf9\x9b\x51\x19\xc7\xd9\x1e\xc8\x28"
        "\xde\x92\x8c\xb2\x3e\x75\xf0\xd7\xd4\x5a\x08\x1a\xcd\x33\x92\xfc\x41"
        "\x31\xb8\xd2\xa3\xd3\xeb\xce\xd5\xe9\x0e\x7b\x5d\x18\x2a\x8d\x41\x8c"
        "\xe5\x91\x12\x3b\xa6\x9c\xd8\xc8\xbc\x72\xaa\x3a\xfb\xaf\x86\x94\xb0"
        "\xff\xee\xc0\xab\xd8\xbc\x21\x69\x73\x0c\x31\x15\x80\xcb\x5a\x54\xb7"
        "\x86\x54\x6f\xff\x06\x22\x02\x89\x97\x09\x11\x20\x3c\x2e\x37\xab\x03"
        "\xd0\x79\xb7\xc1\x23\xe1\xfc\xce\x53\xd7\x10\x9c\x10\xc6\x25\xb1\xc9"
        "\x4e\x06\xfd\xd7\xd9\xc4\x60\xf7\x9c\x89\x4e\xaf\x2e\xa3\x0c\x2f\xfe"
        "\xef\xc9\x35\x39\xd2\xad\x37\xe3\xcf\xd1\x17\xdb\xd5\xee\xeb\x9b\x0a"
        "\xc2\xf0\x79\x7b\x94\x39\xab\x55\xd5\xfd\x03\xd4\x42\x97\x5b\xe7\x5a"
        "\x47\x73\xa2\x0b\x11\x21\x4f\xd1\xcf\xd8\xa2\xf7\x9d\xdb\x9c\x18\xdc"
        "\x05\x52\x20\x6b\x71\xf5\xe1\xcc\x27\xb4\x51\xbb\xb1\xf6\xd5\x91\x97"
        "\x41\x38\x7d\xd7\xfd\x10\x5a\x4e\xfe\x64\x77\xa0\x61\x15\x53\xe1\x64"
        "\x5c\xa1\xb6\x70\x26\x5e\x4a\xeb\x3b\x59\x7a\xcc\x86\xc8\x87\x21\xa4"
        "\x18\xaf\x75\xbd\xcf\xca\xd5\xc0\x41\x9b\x85\xaa\x34\xfd\xe6\xb9\xdd"
        "\x84\xad\xac\x25\x74\x27\x71\x9f\x2e\xe9\x44\x51\xd0\x93\xdc\xcc\x16"
        "\xc6\x2e\xb8\xb1\xb4\x2b\xd3\x3a\x5d\x8b\x09\x75\xbe\x66\x75\x2f\x22"
        "\x59\x3e\xb0\x5b\x4d\x6e\x52\x15\x40\x3e\x5f\xa9\x3e\xb8\x93\xc4\x77"
        "\x70\xc1\x96\xff\x94\x9f\x54\x02\xe7\x5c\xb8\xb9\xc3\x51\x47\xff\x84"
        "\x95\xb1\x1f\xdf\x3b\x89\x13\xcf\x60\xf9\xba\xc0\x0c\x43\x54\xcb\x43"
        "\x85\x0e\x60\x12\xc3\x64\xe0\x49\xcb\x9c\x7f\x38\xc9\x56\xc6\x7c\xe1"
        "\xe1\x54\x68\xd3\xdf\x9a\xc5\x49\xba\x39\x88\x61\x56\xb4\xb1\xa2\xf3"
        "\x59\xe8\x9d\x34\x7d\x90\xa4\x45\xf8\x08\xc3\xe6\x18\x09\xd2\xfb\xdb"
        "\x3e\x9c\x80\xab\x38\x1c\x58\xbb\x51\x27\xaf\x8e\x9e\x73\x7a\xdf\x95"
        "\xaa\x0a\x8d\x77\x41\x76\xe4\x7c\x93\x5d\x46\x2b\x87\x27\x37\x83\x53"
        "\xa4\x52\x35\x2f\x33\x0a\x03\x38\x4a\x21\x74\xa7\x9b\x80\x25\x70\xfb"
        "\x7b\xe7\x9a\x67\x78\x0f\x92\xf0\x82\xf2\x84\x1c\x56\x53\x27\x7c\x09"
        "\x3b\x57\xfb\x18\xb9\x74\x50\xc9\x3c\xb9\x63\x07\xbb\x53\x5a\x68\xe7"
        "\x62\xb0\xde\x51\x09\x56\x50\x04\x1a\x35\x41\x11\xb0\x28\xcc\x89\xd8"
        "\x2b\xf9\x17\xe8\x69\x2d\x65\xc2\x31\x15\x9c\xf1\x4c\xc5\x05\x67\x89"
        "\x75\x04\x2e\xa3\x7a\xeb\xdf\xb1\x85\xd8\x9c\x26\x94\xe7\x7d\xd0\xf8"
        "\x15\x10\x7f\x97\x67\x20\xde\x64\x01\xed\xc7\xdc\x2e\x07\x2d\x07\xf4"
        "\xc8\x86\x2f\xeb\xfd\xc5\x1e\x25\xbe\x8c\x2e\x52\xf8\x58\xa5\x21\x56"
        "\xb1\x84\x31\xe5\x5b\x83\xa0\x77\xc9\x31\xf5\x69\x25\x65\xfe\x6d\x85"
        "\x69\xd2\x95\x6c\xb7\xfb\xff\x72\x17\xcd\xed\x8c\x3d\x35\x25\x96\xd8"
        "\xb3\xd9\x2e\x51\x38\x10\x65\x83\x2f\x23\x71\x65\x4f\x64\xbc\x74\xd4"
        "\x98\xdb\xa1\x5a\xad\x14\x7e\xa7\x22\xe9\x65\xa7\x16\x5b\xe2\x79\xbb"
        "\x57\xd1\x2c\x3d\x2e\xe8\xb5\x92\x7d\x4c\x35\xca\x93\x0e\x87\x54\x76"
        "\xdf\x28\xbe\x87\x43\xf8\xed\xbc\x70\x85\x4a\x4f\xcc\xa9\x1c\x0d\xa1"
        "\x77\x17\x65\x3d\x1e\xe3\x57\x53\x6a\xd7\xbb\x60\x8d\x8d\x34\x26\xb7"
        "\x51\xcb\x74\x00\x83\x72\x8c\x65\x48\xed\xb2\xfe\xb2\xdc\x96\x36\x8a"
        "\x75\xa6\xdb\xcc\x38\x45\x2b\x3f\x67\x82\xcc\x77\x78\x14\x38\xe7\x93"
        "\xdd\x78\xb5\xee\x3e\x89\xab\xa2\xb6\xa7\xa4\x4d\x6a\x5d\x51\xfe\x55"
        "\xce\x9b\x4e\x98\xa2\x07\x23\x7e\x6d\x49\xe8\x61\xf7\x84\x88\x93\x3b"
        "\x94\x99\x93\xae\x23\x20\x32\x26\xf2\x05\xd1\x4b\xd4\xa1\xa1\x48\x1d"
        "\x12\xd6\x4f\xec\xe5\x6d\x01\xa8\x5a\x8d\xfc\xf7\x38\xbf\x68\x10\x78"
        "\xab\xc5\xd5\xfd\x7b\x1c\xe3\x7d\x8d\x22\xf0\x79\x2c\xe7\x07\xe9\x42"
        "\xee\xf6\xdd\xa6\x4c\xb9\xdc\x8f\x5b\xd6\x7e\x5f\x1d\x67\x84\x04\x05"
        "\x05\x23\xd5\x2e\x4f\x74\x65\x80\x3b\x11\x6e\x92\xae\x9a\x0f\x15\x47"
        "\xb5\xfc\x70\x6c\x3f\xd5\x4f\x26\x40\x50\x53\x9a\x81\xd5\xdb\xbc\x3d"
        "\x50\x3f\x93\xd6\x08\x3d\xa6\x33\x6f\xfe\x87\xcb\x11\xeb\xe1\x4a\x0a"
        "\x00\x24\x79\x5d\x3b\x7c\x62\x36\x16\x0b\xef\x88\x2b\x7d\x1d\x6d\x28"
        "\xff\x6b\x15\xff\xe5\xb6\x8a\x3d\x0e\x98\x18\x88\x01\x55\x0c\x3e\xc6"
        "\x29\xaa\xe6\x6c\x7b\x8d\x91\xf3\x4b\x10\x10\xac\x3a\x55\xa5\x86\xe8"
        "\x15\x33\x2a\xa5\xe3\xfc\xb1\xb1\x0e\xb8\x84\xce\xe4\x7d\xc9\xfc\x49"
        "\x2b\x8b\xe7\xc5\x36\xd8\xa3\x63\x96\xbf\xa3\xff\xe5\x9c\xed\x46\xe9"
        "\x1c\x31\x15\x3f\x9c\x03\xab\x55\xbb\x0e\x6a\x94\xdf\x06\x45\x6a\x16"
        "\x25\x3b\xf0\x95\x05\xc1\xa7\x81\xf4\x18\x25\xc0\xd1\x60\xb2\x6d\x64"
        "\x24\x81\xbd\xad\xf6\x01\x6f\xc3\xac\x88\xa3\x7f\x8c\x07\xdd\xfc\x37"
        "\x72\x26\x57\x9f\xc0\x51\x95\xc2\xf2\xe7\x28\x7d\x0b\x01\x11\xff\xd5"
        "\xb2\x79\x16\x26\x0c\x6a\x4c\xb9\x4d\x2a\x89\x24\xf0\x26\xd6\xd1\x7b"
        "\x28\x15\x0f\x9a\x0e\x59\x15\x9c\x29\x7f\xfd\xf7\x72\x1f\x59\xcf\x88"
        "\x87\x3d\xb5\x57\xf0\x00\x38\x39\xd0\xb4\x9e\xf9\xb4\x83\xe3\x1f\xa2"
        "\xb6\x3e\xc0\x1a\x60\xaf\xc0\x98\xe2\xb5\x3f\x66\xc2\xce\x45\xd6\x0d"
        "\x5b\x55\x27\xef\x63\x91\x86\x16\xa8\x07\x9b\x46\xbe\xa8\xb1\xf7\x7f"
        "\x75\x1b\xbf\xa1\x81\xdb\xc7\x9b\xec\x45\xb7\xdd\x0f\x85\x03\x7e\x36"
        "\x29\x2f\xf1\x18\xae\xa4\x64\x3b\x1b\xed\xcf\x80\xe1\x21\x6b\x78\xb2"
        "\x2b\xde\x89\x7a\x4a\x03\x59\x90\x3d\x44\x13\xe4\x50\xb2\xac\x09\x6a"
        "\xed\x1d\x90\xd3\x8c\x13\x08\x82\x96\xb3\xb9\x6f\x39\x85\x86\xf1\x99"
        "\x49\xc9\x22\xaf\x9d\x71\xf6\xb7\x59\x4a\x7d\x96\x16\x0d\xea\x11\x3d"
        "\xe4\x15\xa6\x41\x73\xd1\x88\xef\xe6\x33\x4e\x5d\x82\xbe\xac\x1b\x34"
        "\x5a\x90\x0e\x16\xe9\xa8\x3d\xf2\xc8\x53\x33\x77\x97\xc0\x3e\x47\xf4"
        "\xfe\x9a\xd9\x38\x29\x01\xaa\xc1\xb1\x9e\x87\x25\xec\xb1\x32\x82\x98"
        "\xff\xda\xce\x6d\xe1\x3b\x8b\x3a\x90\x7b\x6c\x9b\x9f\xf9\x1f\x39\xb0"
        "\x5c\x11\x3d\x2e\x33\x40\x51\x3c\x6d\xc8\x96\x44\xf7\xa4\x6c\x1a\x1b"
        "\x1a\xc9\x79\xc2\x76\x7c\xb1\x23\x4f\x26\x0e\xe0\xcf\xd7\x76\x11\x83"
        "\x48\x3e\xde\x5f\x14\xbe\x68\xfe\x96\xe4\x61\x13\x99\x96\x02\xa3\x0a"
        "\xc1\x54\x55\x76\x1d\xda\xd0\x8d\xb0\x61\x66\x91\xd4\xea\xd5\x47\x0e"
        "\x11\x33\xe0\x6c\xff\x94\x4e\xa2\x96\x21\xb3\xf3\xc7\x50\xd2\x7b\xc1"
        "\xaa\xda\xbd\x2d\x63\x49\x11\xb7\x1c\x6b\x49\x7b\xfb\x5b\x61\xf4\xf9"
        "\x2e\x8d\x7b\x1a\xf5\x35\xdc\x5a\xb8\x4a\x4f\xb8\x59\x94\xf7\x9e\xdc"
        "\xec\x76\xc3\x19\x2f\x7e\xd3\xff\x5b\x54\x56\x30\x88\xd4\x5b\x00\xfa"
        "\x53\x0c\xac\x7e\x3a\x9f\x1e\x90\x22\x22\xd7\x11\x6e\xd7\xfe\x12\xc5"
        "\x6b\x08\x6e\xe5\x51\xc8\x63\x76\xf7\xc2\x48\x18\xe9\x74\x87\xda\x59"
        "\xde\x53\x9e\xcb\xe5\xfa\xa6\xb7\x1c\xa5\xc9\x01\x24\x36\xf6\xf3\x30"
        "\x6f\x98\xf0\x63\xff\xf1\x0b\x78\x8c\x34\x06\xba\xe6\x56\xa0\xc1\x19"
        "\x7a\x8b\x49\x16\x40\xfb\x9d\x99\xdb\xc8\x7e\x59\x5d\xa7\x37\x09\x57"
        "\xb0\xbc\xc6\x25\x21\xd9\x30\x69\x70\xe5\xc1\x5b\x76\x02\xd6\x3d\x2d"
        "\xab\x88\xd7\xe7\xd0\x41\x89\xac\x16\xbd\xdc\x4e\x4e\x96\x98\x9e\xfe"
        "\x25\x90\xcd\x1a\x7e\xf2\xe8\xc6\x8f\x35\x02\x55\xb1\xd3\x23\xc4\x1d"
        "\xad\x0e\xc3\x4b\xe6\xb7\x0f\x35\xb9\x36\xc4\xe0\x70\x82\x8b\x32\x50"
        "\xf3\xbe\x2c\x10\x81\x19\x7b\x97\xc0\x3d\x6d\xf8\xfc\x01\xec\xb5\xae"
        "\x87\xf3\x94\x9a\x6e\x7e\x53\x48\x05\xdb\x4e\x78\x39\xd5\x87\x97",
        4096));
    NONFAILING(*(uint16_t*)0x20007fc4 = 0x1000);
    syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20006fc0ul, /*len=*/0x1006ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  setup_sysctl();
  setup_cgroups();
  const char* reason;
  (void)reason;
  if ((reason = setup_binfmt_misc()))
    printf("the reproducer may not work as expected: binfmt_misc setup failed: "
           "%s\n",
           reason);
  if ((reason = setup_usb()))
    printf("the reproducer may not work as expected: USB injection setup "
           "failed: %s\n",
           reason);
  if ((reason = setup_802154()))
    printf("the reproducer may not work as expected: 802154 injection setup "
           "failed: %s\n",
           reason);
  install_segv_handler();
  use_temporary_dir();
  do_sandbox_none();
  return 0;
}