// https://syzkaller.appspot.com/bug?id=6ff79a13ea188e28f1d76ce8093f6b3c24530a0a
// 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 <rdma/rdma_netlink.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/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_bpf
#define __NR_bpf 321
#endif
#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 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;
  if (size > 0)
    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 unsigned int queue_count = 2;

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_attr(nlmsg, IFLA_NUM_TX_QUEUES, &queue_count, sizeof(queue_count));
  netlink_attr(nlmsg, IFLA_NUM_RX_QUEUES, &queue_count, sizeof(queue_count));
  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_attr(nlmsg, IFLA_NUM_TX_QUEUES, &queue_count, sizeof(queue_count));
  netlink_attr(nlmsg, IFLA_NUM_RX_QUEUES, &queue_count, sizeof(queue_count));
  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 struct nlmsg nlmsg;

#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 netlink_add_rxe(void)
{
  if (access("/dev/infiniband/uverbs0", F_OK) == 0)
    return;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    return;
  int rdma = socket(AF_NETLINK, SOCK_RAW, NETLINK_RDMA);
  if (rdma == -1) {
    close(sock);
    return;
  }
  netlink_add_device(&nlmsg, sock, "dummy", "rxe_eth0");
  netlink_add_addr4(&nlmsg, sock, "rxe_eth0", "172.20.20.170");
  netlink_add_addr6(&nlmsg, sock, "rxe_eth0", "fe80::aa");
  uint8_t macaddr[ETH_ALEN] = {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa};
  netlink_device_change(&nlmsg, sock, "rxe_eth0", true, 0, macaddr, ETH_ALEN,
                        NULL);
  uint16_t type = RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_NEWLINK);
  netlink_init(&nlmsg, type, 0, NULL, 0);
  netlink_attr(&nlmsg, RDMA_NLDEV_ATTR_DEV_NAME, "rxe0", 5);
  netlink_attr(&nlmsg, RDMA_NLDEV_ATTR_LINK_TYPE, "rxe", 4);
  netlink_attr(&nlmsg, RDMA_NLDEV_ATTR_NDEV_NAME, "rxe_eth0", 9);
  int err = netlink_send_ext(&nlmsg, rdma, 0, NULL, false);
  if (err < 0) {
  }
  close(rdma);
  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);
  netlink_add_rxe();
}

#define SIZEOF_IO_URING_SQE 64
#define SIZEOF_IO_URING_CQE 16

#define IORING_SETUP_SQE128 (1U << 10)
#define IORING_SETUP_CQE32 (1U << 11)

struct io_sqring_offsets {
  uint32_t head;
  uint32_t tail;
  uint32_t ring_mask;
  uint32_t ring_entries;
  uint32_t flags;
  uint32_t dropped;
  uint32_t array;
  uint32_t resv1;
  uint64_t user_addr;
};

struct io_cqring_offsets {
  uint32_t head;
  uint32_t tail;
  uint32_t ring_mask;
  uint32_t ring_entries;
  uint32_t overflow;
  uint32_t cqes;
  uint32_t flags;
  uint32_t resv1;
  uint64_t user_addr;
};

struct io_uring_params {
  uint32_t sq_entries;
  uint32_t cq_entries;
  uint32_t flags;
  uint32_t sq_thread_cpu;
  uint32_t sq_thread_idle;
  uint32_t features;
  uint32_t resv[4];
  struct io_sqring_offsets sq_off;
  struct io_cqring_offsets cq_off;
};

static long io_uring_sqe_size(struct io_uring_params* params)
{
  return SIZEOF_IO_URING_SQE << !!(params->flags & IORING_SETUP_SQE128);
}

static long io_uring_cqe_size(struct io_uring_params* params)
{
  return SIZEOF_IO_URING_CQE << !!(params->flags & IORING_SETUP_CQE32);
}

#define IORING_OFF_SQ_RING 0ULL
#define IORING_OFF_SQES 0x10000000ULL
static long syz_io_uring_setup(volatile long a0, volatile long a1,
                               volatile long a2, volatile long a3,
                               volatile long a4)
{
  uint32_t entries = (uint32_t)a0;
  struct io_uring_params* setup_params = (struct io_uring_params*)a1;
  void** ring_params_ptr_out = (void**)a2;
  void** ring_ptr_out = (void**)a3;
  void** sqes_ptr_out = (void**)a4;
  uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params);
  *ring_params_ptr_out = (void*)setup_params;
  uint32_t sq_ring_sz =
      setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t);
  uint32_t cq_ring_sz =
      setup_params->cq_off.cqes +
      setup_params->cq_entries * io_uring_cqe_size(setup_params);
  uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz;
  *ring_ptr_out =
      mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE,
           fd_io_uring, IORING_OFF_SQ_RING);
  uint32_t sqes_sz = setup_params->sq_entries * io_uring_sqe_size(setup_params);
  *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE,
                       MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES);
  uint32_t* array =
      (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array);
  for (uint32_t index = 0; index < setup_params->sq_entries; index++)
    array[index] = index;
  return fd_io_uring;
}

static long syz_ublk_setup_io_uring(volatile long a0, volatile long a1,
                                    volatile long a2, volatile long a3,
                                    volatile long a4)
{
  struct io_uring_params* params = (struct io_uring_params*)a1;
  params->flags |= IORING_SETUP_SQE128 | IORING_SETUP_CQE32;
  return syz_io_uring_setup(a0, (long)params, a2, a3, a4);
}

#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_RDONLY);
  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");
  } else if (strncmp(fs, "gfs2", 4) == 0 &&
             (strstr(opts, "errors=panic") || strstr(opts, "debug"))) {
    strcat(opts, ",errors=withdraw");
  }
  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) {
    if (chdir(target) == -1) {
      err = errno;
      close(res);
      res = -1;
    }
  }

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

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

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

static void setup_fusectl()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, "stats=global")) {
    if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
    }
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  if (getppid() == 1)
    exit(1);
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  sandbox_common();
  drop_caps();
  initialize_netdevices_init();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_netdevices();
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

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

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

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

static void setup_loop()
{
  setup_cgroups_loop();
}

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

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  setup_cgroups_test();
  write_file("/proc/self/oom_score_adj", "1000");
  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) &&
      errno != EBUSY) {
    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::/proc/thread-self/cwd/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;
}

#define FUSE_MIN_READ_BUFFER 8192
enum fuse_opcode {
  FUSE_LOOKUP = 1,
  FUSE_FORGET = 2,
  FUSE_GETATTR = 3,
  FUSE_SETATTR = 4,
  FUSE_READLINK = 5,
  FUSE_SYMLINK = 6,
  FUSE_MKNOD = 8,
  FUSE_MKDIR = 9,
  FUSE_UNLINK = 10,
  FUSE_RMDIR = 11,
  FUSE_RENAME = 12,
  FUSE_LINK = 13,
  FUSE_OPEN = 14,
  FUSE_READ = 15,
  FUSE_WRITE = 16,
  FUSE_STATFS = 17,
  FUSE_RELEASE = 18,
  FUSE_FSYNC = 20,
  FUSE_SETXATTR = 21,
  FUSE_GETXATTR = 22,
  FUSE_LISTXATTR = 23,
  FUSE_REMOVEXATTR = 24,
  FUSE_FLUSH = 25,
  FUSE_INIT = 26,
  FUSE_OPENDIR = 27,
  FUSE_READDIR = 28,
  FUSE_RELEASEDIR = 29,
  FUSE_FSYNCDIR = 30,
  FUSE_GETLK = 31,
  FUSE_SETLK = 32,
  FUSE_SETLKW = 33,
  FUSE_ACCESS = 34,
  FUSE_CREATE = 35,
  FUSE_INTERRUPT = 36,
  FUSE_BMAP = 37,
  FUSE_DESTROY = 38,
  FUSE_IOCTL = 39,
  FUSE_POLL = 40,
  FUSE_NOTIFY_REPLY = 41,
  FUSE_BATCH_FORGET = 42,
  FUSE_FALLOCATE = 43,
  FUSE_READDIRPLUS = 44,
  FUSE_RENAME2 = 45,
  FUSE_LSEEK = 46,
  FUSE_COPY_FILE_RANGE = 47,
  FUSE_SETUPMAPPING = 48,
  FUSE_REMOVEMAPPING = 49,
  FUSE_SYNCFS = 50,
  FUSE_TMPFILE = 51,
  FUSE_STATX = 52,
  CUSE_INIT = 4096,
  CUSE_INIT_BSWAP_RESERVED = 1048576,
  FUSE_INIT_BSWAP_RESERVED = 436207616,
};
struct fuse_in_header {
  uint32_t len;
  uint32_t opcode;
  uint64_t unique;
  uint64_t nodeid;
  uint32_t uid;
  uint32_t gid;
  uint32_t pid;
  uint32_t padding;
};
struct fuse_out_header {
  uint32_t len;
  uint32_t error;
  uint64_t unique;
};
struct syz_fuse_req_out {
  struct fuse_out_header* init;
  struct fuse_out_header* lseek;
  struct fuse_out_header* bmap;
  struct fuse_out_header* poll;
  struct fuse_out_header* getxattr;
  struct fuse_out_header* lk;
  struct fuse_out_header* statfs;
  struct fuse_out_header* write;
  struct fuse_out_header* read;
  struct fuse_out_header* open;
  struct fuse_out_header* attr;
  struct fuse_out_header* entry;
  struct fuse_out_header* dirent;
  struct fuse_out_header* direntplus;
  struct fuse_out_header* create_open;
  struct fuse_out_header* ioctl;
  struct fuse_out_header* statx;
};
static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr,
                              struct fuse_out_header* out_hdr)
{
  if (!out_hdr) {
    return -1;
  }
  out_hdr->unique = in_hdr->unique;
  if (write(fd, out_hdr, out_hdr->len) == -1) {
    return -1;
  }
  return 0;
}
static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1,
                                         volatile long a2, volatile long a3)
{
  struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3;
  struct fuse_out_header* out_hdr = NULL;
  char* buf = (char*)a1;
  int buf_len = (int)a2;
  int fd = (int)a0;
  if (!req_out) {
    return -1;
  }
  if (buf_len < FUSE_MIN_READ_BUFFER) {
    return -1;
  }
  int ret = read(fd, buf, buf_len);
  if (ret == -1) {
    return -1;
  }
  if ((size_t)ret < sizeof(struct fuse_in_header)) {
    return -1;
  }
  const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf;
  if (in_hdr->len > (uint32_t)ret) {
    return -1;
  }
  switch (in_hdr->opcode) {
  case FUSE_GETATTR:
  case FUSE_SETATTR:
    out_hdr = req_out->attr;
    break;
  case FUSE_LOOKUP:
  case FUSE_SYMLINK:
  case FUSE_LINK:
  case FUSE_MKNOD:
  case FUSE_MKDIR:
    out_hdr = req_out->entry;
    break;
  case FUSE_OPEN:
  case FUSE_OPENDIR:
    out_hdr = req_out->open;
    break;
  case FUSE_STATFS:
    out_hdr = req_out->statfs;
    break;
  case FUSE_RMDIR:
  case FUSE_RENAME:
  case FUSE_RENAME2:
  case FUSE_FALLOCATE:
  case FUSE_SETXATTR:
  case FUSE_REMOVEXATTR:
  case FUSE_FSYNCDIR:
  case FUSE_FSYNC:
  case FUSE_SETLKW:
  case FUSE_SETLK:
  case FUSE_ACCESS:
  case FUSE_FLUSH:
  case FUSE_RELEASE:
  case FUSE_RELEASEDIR:
  case FUSE_UNLINK:
  case FUSE_DESTROY:
    out_hdr = req_out->init;
    if (!out_hdr) {
      return -1;
    }
    out_hdr->len = sizeof(struct fuse_out_header);
    break;
  case FUSE_READ:
    out_hdr = req_out->read;
    break;
  case FUSE_READDIR:
    out_hdr = req_out->dirent;
    break;
  case FUSE_READDIRPLUS:
    out_hdr = req_out->direntplus;
    break;
  case FUSE_INIT:
    out_hdr = req_out->init;
    break;
  case FUSE_LSEEK:
    out_hdr = req_out->lseek;
    break;
  case FUSE_GETLK:
    out_hdr = req_out->lk;
    break;
  case FUSE_BMAP:
    out_hdr = req_out->bmap;
    break;
  case FUSE_POLL:
    out_hdr = req_out->poll;
    break;
  case FUSE_GETXATTR:
  case FUSE_LISTXATTR:
    out_hdr = req_out->getxattr;
    break;
  case FUSE_WRITE:
  case FUSE_COPY_FILE_RANGE:
    out_hdr = req_out->write;
    break;
  case FUSE_FORGET:
  case FUSE_BATCH_FORGET:
    return 0;
  case FUSE_CREATE:
    out_hdr = req_out->create_open;
    break;
  case FUSE_IOCTL:
    out_hdr = req_out->ioctl;
    break;
  case FUSE_STATX:
    out_hdr = req_out->statx;
    break;
  default:
    return -1;
  }
  return fuse_send_response(fd, in_hdr, out_hdr);
}

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();
      close_fds();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$ext4 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 74 34 00} (length 0x5)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x210000 (8 bytes)
  //    opts: ptr[in, fs_options[ext4_options]] {
  //      fs_options[ext4_options] {
  //        elems: array[fs_opt_elem[ext4_options]] {
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              user_xattr: buffer: {75 73 65 72 5f 78 61 74 74 72} (length
  //              0xa)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noquota: buffer: {6e 6f 71 75 6f 74 61} (length 0x7)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              dioread_nolock: buffer: {64 69 6f 72 65 61 64 5f 6e 6f 6c 6f
  //              63 6b} (length 0xe)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              jqfmt_vfsv1: buffer: {6a 71 66 6d 74 3d 76 66 73 76 31}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              debug_want_extra_isize: fs_opt["debug_want_extra_isize",
  //              fmt[hex, int32]] {
  //                name: buffer: {64 65 62 75 67 5f 77 61 6e 74 5f 65 78 74 72
  //                61 5f 69 73 69 7a 65} (length 0x16) eq: const = 0x3d (1
  //                bytes) val: int32 = 0x70 (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              max_dir_size_kb: fs_opt["max_dir_size_kb", fmt[hex, int32]] {
  //                name: buffer: {6d 61 78 5f 64 69 72 5f 73 69 7a 65 5f 6b 62}
  //                (length 0xf) eq: const = 0x3d (1 bytes) val: int32 = 0x7b1
  //                (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              stripe: fs_opt["stripe", fmt[hex, int32]] {
  //                name: buffer: {73 74 72 69 70 65} (length 0x6)
  //                eq: const = 0x3d (1 bytes)
  //                val: int32 = 0x20 (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              bsdgroups: buffer: {62 73 64 67 72 6f 75 70 73} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              max_batch_time: fs_opt["max_batch_time", fmt[hex, int32]] {
  //                name: buffer: {6d 61 78 5f 62 61 74 63 68 5f 74 69 6d 65}
  //                (length 0xe) eq: const = 0x3d (1 bytes) val: int32 = 0x3fe
  //                (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              user_xattr: buffer: {75 73 65 72 5f 78 61 74 74 72} (length
  //              0xa)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noinit_itable: buffer: {6e 6f 69 6e 69 74 5f 69 74 61 62 6c
  //              65} (length 0xd)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x3 (1 bytes)
  //    size: len = 0x589 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x589)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000000040, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x200000000200, "./file1\000", 8));
  NONFAILING(memcpy((void*)0x200000000280, "user_xattr", 10));
  NONFAILING(*(uint8_t*)0x20000000028a = 0x2c);
  NONFAILING(memcpy((void*)0x20000000028b, "noquota", 7));
  NONFAILING(*(uint8_t*)0x200000000292 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000293, "dioread_nolock", 14));
  NONFAILING(*(uint8_t*)0x2000000002a1 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000002a2, "jqfmt=vfsv1", 11));
  NONFAILING(*(uint8_t*)0x2000000002ad = 0x2c);
  NONFAILING(memcpy((void*)0x2000000002ae, "debug_want_extra_isize", 22));
  NONFAILING(*(uint8_t*)0x2000000002c4 = 0x3d);
  NONFAILING(sprintf((char*)0x2000000002c5, "0x%016llx", (long long)0x70));
  NONFAILING(*(uint8_t*)0x2000000002d7 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000002d8, "max_dir_size_kb", 15));
  NONFAILING(*(uint8_t*)0x2000000002e7 = 0x3d);
  NONFAILING(sprintf((char*)0x2000000002e8, "0x%016llx", (long long)0x7b1));
  NONFAILING(*(uint8_t*)0x2000000002fa = 0x2c);
  NONFAILING(memcpy((void*)0x2000000002fb, "stripe", 6));
  NONFAILING(*(uint8_t*)0x200000000301 = 0x3d);
  NONFAILING(sprintf((char*)0x200000000302, "0x%016llx", (long long)0x20));
  NONFAILING(*(uint8_t*)0x200000000314 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000315, "bsdgroups", 9));
  NONFAILING(*(uint8_t*)0x20000000031e = 0x2c);
  NONFAILING(memcpy((void*)0x20000000031f, "max_batch_time", 14));
  NONFAILING(*(uint8_t*)0x20000000032d = 0x3d);
  NONFAILING(sprintf((char*)0x20000000032e, "0x%016llx", (long long)0x3fe));
  NONFAILING(*(uint8_t*)0x200000000340 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000341, "user_xattr", 10));
  NONFAILING(*(uint8_t*)0x20000000034b = 0x2c);
  NONFAILING(memcpy((void*)0x20000000034c, "noinit_itable", 13));
  NONFAILING(*(uint8_t*)0x200000000359 = 0x2c);
  NONFAILING(*(uint8_t*)0x20000000035a = 0);
  NONFAILING(memcpy(
      (void*)0x2000000083c0,
      "\x78\x9c\xec\xdd\xcd\x6b\x1c\xe5\x1f\x00\xf0\xef\x6c\x76\xfb\xfe\xfb\x35"
      "\x85\x52\xac\x88\x14\x7a\xb0\x52\xbb\x69\x12\x5f\x2a\x78\xa8\x47\xd1\x62"
      "\x41\x3d\xd7\x90\x6c\x43\xc9\xa6\x5b\xb2\x9b\xd2\xc4\x82\xed\xc1\x5e\xbc"
      "\x48\x11\x44\x2c\x88\x77\xbd\x7b\xf0\x50\xbc\x78\xf4\xaf\x28\x68\xa1\x48"
      "\x09\x0a\x7a\x59\x99\xcd\x6c\xb2\x69\x36\xc9\x66\xb3\x31\x69\xf7\xf3\x81"
      "\x49\x9e\x67\x66\x76\x9f\x79\xe6\x99\xef\xc3\x33\xfb\xec\x32\x01\xf4\xad"
      "\x13\xe9\x9f\x5c\xc4\xf1\x88\xf8\x22\x89\x38\xdc\xb2\x2d\x1f\xd9\xc6\x13"
      "\x8b\xfb\x2d\x3c\xbe\x39\x9e\x2e\x49\xd4\xeb\x1f\xfc\x91\x44\x92\xad\x6b"
      "\xee\x9f\x64\xff\x0f\x66\x99\xe7\x22\xe2\xe7\xcf\x22\x4e\xe7\x56\x97\x5b"
      "\x9d\x9b\x9f\x1a\x2b\x97\x4b\x33\x59\x7e\xa8\x36\x7d\x6d\xa8\x3a\x37\x7f"
      "\xe6\xca\xf4\xd8\x64\x69\xb2\x74\x75\x64\x74\xf4\xdc\x6b\xa3\x23\x6f\xbe"
      "\xf1\x7a\xcf\xea\xfa\xf2\xc5\xbf\xbe\x7e\xff\xfe\x3b\xe7\x3e\x3f\xb9\xf0"
      "\xd5\x0f\x0f\x8f\xdc\x4d\xe2\x7c\x1c\xca\xb6\xb5\xd6\x63\x53\xf6\xae\xc8"
      "\xdd\x6a\xcd\x9c\xa8\xd7\xb3\x73\x52\x88\xf3\x4f\xbc\x6c\xb8\xab\xc2\x76"
      "\xaf\x64\xa7\x0f\x80\xae\x0c\x64\x71\x5e\x88\x88\xe3\x85\xc3\x85\x66\xd4"
      "\x03\xcf\xbe\x4f\x23\xa2\x0e\xf4\xa9\x64\x93\xf1\xbf\x57\x7f\x01\xcf\x88"
      "\xe6\x38\xa0\x79\x6f\xdf\xf5\x7d\xf0\x53\xea\xd1\xdb\x8b\x37\x40\xab\xeb"
      "\x9f\x5f\xfc\x6c\x24\xf6\x35\xee\x8d\x0e\x2c\x24\x2b\xee\x8c\xd2\xfb\xdd"
      "\xc1\x1e\x94\x9f\x96\xf1\xe3\xef\xf7\xee\xa6\x4b\x6c\xe5\x73\x08\x80\x4d"
      "\xba\x75\x3b\x22\xce\xe6\xf3\xab\xfb\xbf\x24\xeb\xff\xba\x77\xb6\x83\x7d"
      "\x9e\x2c\x43\xff\x07\xff\x9d\xfb\xe9\xf8\xe7\x95\x76\xe3\x9f\xdc\xd2\xf8"
      "\x27\xda\x8c\x7f\x0e\xb6\x89\xdd\x6e\x6c\x1c\xff\xb9\x87\x3d\x28\x66\x4d"
      "\xe9\xf8\xef\xad\xb6\xe3\xdf\xa5\x49\xab\xc1\x81\x2c\xf7\xbf\xc6\x98\xaf"
      "\x90\x5c\xbe\x52\x2e\xa5\x7d\xdb\xff\x23\xe2\x54\x14\xf6\xa6\xf9\xf5\xe6"
      "\x73\xce\x2d\x3c\xa8\xaf\xb5\xad\x75\xfc\x97\x2e\x69\xf9\xcd\xb1\x60\x76"
      "\x1c\x0f\xf3\x2b\xe7\x98\x62\x62\xac\x36\xb6\x95\x3a\xb7\x7a\x74\x3b\xe2"
      "\xf9\xb6\xe3\xdf\x64\xa9\xfd\x93\x36\xed\x9f\x9e\x8f\x8f\x3a\x2c\xe3\x58"
      "\xe9\xde\x8b\x6b\x6d\xdb\xb8\xfe\xdb\xab\xfe\x5d\xc4\x4b\x6d\xdb\x7f\x79"
      "\x46\x2b\x59\x7f\x7e\x72\xa8\x71\x3d\x0c\x35\xaf\x8a\xd5\xfe\xbc\x73\xec"
      "\xd7\xb5\xca\x6f\x5f\xff\x5f\x7e\xda\x86\xaa\xb6\x95\xb6\xff\x81\xf5\xeb"
      "\x3f\x98\xb4\xce\xd7\x56\x37\x5f\xc6\xb7\xfb\xfe\x29\xad\xb5\xad\xdb\xeb"
      "\x7f\x4f\xf2\x61\x23\xbd\x27\x5b\x77\x63\xac\x56\x9b\x19\x8e\xd8\x93\xbc"
      "\xb7\x7a\xfd\xc8\xf2\x6b\x9b\xf9\xe6\xfe\x69\xfd\x4f\x9d\x5c\xbf\xff\x6b"
      "\x77\xfd\xef\x8f\x88\x8f\x3b\xac\xff\x9d\xa3\xdf\xbf\xd0\x7d\xfd\xb7\x57"
      "\x5a\xff\x89\x4d\xb5\xff\xe6\x13\x0f\xde\xfd\xe4\x9b\xb5\xca\xef\xac\xfd"
      "\x5f\x6d\xa4\x4e\x65\x6b\x3a\xe9\xff\x3a\x3d\xc0\xad\x9c\x3b\x00\x00\x00"
      "\x00\x00\x00\xd8\x6d\x72\x11\x71\x28\x92\x5c\x31\xf6\x65\xe9\x5c\xae\x58"
      "\x5c\xfc\x7e\xc7\xd1\x38\x90\x2b\x57\xaa\xb5\xd3\x97\x2b\xb3\x57\x27\xa2"
      "\xf1\x5b\xd9\xc1\x28\xe4\x9a\x33\xdd\x87\x5b\xbe\x0f\x31\x9c\x7d\x1f\xb6"
      "\x99\x1f\x79\x22\x3f\x1a\x11\x47\x22\xe2\xcb\x81\xfd\x8d\x7c\x71\xbc\x52"
      "\x9e\xd8\xe9\xca\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\xc0\x2e\x71\x70\xe9\xf7\xff\xb1\xe2\xf7\xff\xa9\xdf\x06\x76\xfa\xe8"
      "\x80\x6d\x97\x5f\x7c\xfe\x37\xd0\x87\x36\x7c\xe4\x7f\x2f\x9e\xf4\x04\xec"
      "\x4a\x1b\xc6\x3f\xf0\xcc\x12\xff\xd0\xbf\xc4\x3f\xf4\x2f\xf1\x0f\x7d\xa9"
      "\x31\xc5\x27\xfe\xa1\x7f\x89\x7f\xe8\x5f\xe2\x1f\xfa\x97\xf8\x07\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x80\x9e\xba\x78\xe1\x42\xba\xd4\x17\x1e\xdf\x1c\x4f\xf3\x13\xd7\xe7\x66"
      "\xa7\x2a\xd7\xcf\x4c\x94\xaa\x53\xc5\xe9\xd9\xf1\xe2\x78\x65\xe6\x5a\x71"
      "\xb2\x52\x99\x2c\x97\x8a\xe3\x95\xe9\x8d\xde\xaf\x5c\xa9\x5c\x1b\x1e\x89"
      "\xd9\x1b\x43\xb5\x52\xb5\x36\x54\x9d\x9b\xbf\x34\x5d\x99\xbd\x5a\xbb\x74"
      "\x65\x7a\x6c\xb2\x74\xa9\xe4\x39\xe3\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xb0\x5a\x75\x6e\x7e\x6a\xac\x5c\x2e\xcd\xf4\x20"
      "\x51\x28\x97\x4b\xb9\x88\xe8\x64\xe7\x88\x1e\x15\xfa\xd4\x25\xfe\xde\xf2"
      "\xfb\xa4\xed\x76\x2b\xdf\xd9\x79\xde\x9e\x44\x12\xcb\x6b\xf2\xbb\xe2\xac"
      "\x4a\xf4\x3a\xb1\xd3\x3d\x13\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x2c\xfb\x37\x00\x00\xff\xff\x31\x4c\x32\xa4",
      1417));
  NONFAILING(syz_mount_image(/*fs=*/0x200000000040, /*dir=*/0x200000000200,
                             /*flags=MS_POSIXACL|MS_RELATIME*/ 0x210000,
                             /*opts=*/0x200000000280, /*chdir=*/3,
                             /*size=*/0x589, /*img=*/0x2000000083c0));
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: nil
  //    flags: open_flags = 0x143041 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0ul,
          /*flags=O_SYNC|O_NOATIME|O_CREAT|FASYNC|O_WRONLY*/ 0x143041,
          /*mode=*/0);
  //  syz_fuse_handle_req arguments: [
  //    fd: fd_fuse (resource)
  //    buf: nil
  //    len: bytesize = 0x0 (8 bytes)
  //    res: nil
  //  ]
  NONFAILING(syz_fuse_handle_req(/*fd=*/-1, /*buf=*/0, /*len=*/0, /*res=*/0));
  //  bpf$BPF_GET_MAP_INFO arguments: [
  //    cmd: const = 0xf (8 bytes)
  //    arg: nil
  //    size: len = 0x0 (8 bytes)
  //  ]
  syscall(__NR_bpf, /*cmd=*/0xful, /*arg=*/0ul, /*size=*/0ul);
  //  write$uinput_user_dev arguments: [
  //    fd: fd_uinput (resource)
  //    data: ptr[in, uinput_user_dev] {
  //      uinput_user_dev {
  //        name: buffer: {73 79 7a 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} (length 0x50) id:
  //        input_id {
  //          bustype: int16 = 0x807 (2 bytes)
  //          vendor: int16 = 0x83 (2 bytes)
  //          product: int16 = 0x6 (2 bytes)
  //          version: int16 = 0xfffa (2 bytes)
  //        }
  //        ff_effects_max: int32 = 0x2000001d (4 bytes)
  //        absmax: array[int32] {
  //          int32 = 0x8000 (4 bytes)
  //          int32 = 0xc95a (4 bytes)
  //          int32 = 0x12 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x80 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x7f (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x49 (4 bytes)
  //          int32 = 0x39cc191b (4 bytes)
  //          int32 = 0x5f (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0xffff2d37 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x46 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x8 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x3c5b (4 bytes)
  //          int32 = 0x90 (4 bytes)
  //          int32 = 0x24 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0xffffffff (4 bytes)
  //          int32 = 0x1f461e2c (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0xe661 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0xffff0001 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x4c74 (4 bytes)
  //          int32 = 0x80000000 (4 bytes)
  //          int32 = 0x242 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0xe (4 bytes)
  //          int32 = 0x1000 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x41 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0xffffffff (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x8 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x8000005 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0xb (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0x40 (4 bytes)
  //        }
  //        absmin: array[int32] {
  //          int32 = 0x10000007 (4 bytes)
  //          int32 = 0xffff (4 bytes)
  //          int32 = 0x8000012d (4 bytes)
  //          int32 = 0x8000 (4 bytes)
  //          int32 = 0x10 (4 bytes)
  //          int32 = 0xfffffff3 (4 bytes)
  //          int32 = 0x129432e6 (4 bytes)
  //          int32 = 0xcd (4 bytes)
  //          int32 = 0x40c (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x2bf (4 bytes)
  //          int32 = 0x6c9 (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0xfffffffc (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0xeb (4 bytes)
  //          int32 = 0x5573 (4 bytes)
  //          int32 = 0xe (4 bytes)
  //          int32 = 0x312 (4 bytes)
  //          int32 = 0x78 (4 bytes)
  //          int32 = 0xea4 (4 bytes)
  //          int32 = 0x10 (4 bytes)
  //          int32 = 0xda7a (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x8000 (4 bytes)
  //          int32 = 0x2009 (4 bytes)
  //          int32 = 0x400 (4 bytes)
  //          int32 = 0x401 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x5f2e (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x10000008 (4 bytes)
  //          int32 = 0xfffffffc (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x8000 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0xfe000000 (4 bytes)
  //          int32 = 0xffff (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x7f (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x43 (4 bytes)
  //          int32 = 0x42 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //        }
  //        absfuzz: array[int32] {
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0xfffffffe (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x8d2 (4 bytes)
  //          int32 = 0x8 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x7fff (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0xb (4 bytes)
  //          int32 = 0x20004 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x8 (4 bytes)
  //          int32 = 0x83 (4 bytes)
  //          int32 = 0x4000003 (4 bytes)
  //          int32 = 0x20000009 (4 bytes)
  //          int32 = 0x3e7 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0xd (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x6d01 (4 bytes)
  //          int32 = 0x8005 (4 bytes)
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0x800000 (4 bytes)
  //          int32 = 0x200 (4 bytes)
  //          int32 = 0x80 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x2950bfaf (4 bytes)
  //          int32 = 0x1000 (4 bytes)
  //          int32 = 0xa2 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0xac8 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x7ff (4 bytes)
  //          int32 = 0xfffffff9 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x1c (4 bytes)
  //          int32 = 0x120000 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x8003 (4 bytes)
  //          int32 = 0xa2ed (4 bytes)
  //          int32 = 0x404 (4 bytes)
  //          int32 = 0x25 (4 bytes)
  //        }
  //        absflat: array[int32] {
  //          int32 = 0x9 (4 bytes)
  //          int32 = 0xbb31 (4 bytes)
  //          int32 = 0x296 (4 bytes)
  //          int32 = 0xb (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x938 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0xce7 (4 bytes)
  //          int32 = 0x53f53804 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0xa (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x101 (4 bytes)
  //          int32 = 0x10000 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x207fff (4 bytes)
  //          int32 = 0xffff (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x148 (4 bytes)
  //          int32 = 0x60a7 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0xffffffff (4 bytes)
  //          int32 = 0x80000000 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x8 (4 bytes)
  //          int32 = 0xc8 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0xfffff000 (4 bytes)
  //          int32 = 0x10003 (4 bytes)
  //          int32 = 0x3 (4 bytes)
  //          int32 = 0x7e (4 bytes)
  //          int32 = 0x20100 (4 bytes)
  //          int32 = 0x9602 (4 bytes)
  //          int32 = 0xc639 (4 bytes)
  //          int32 = 0x20000002 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0x50080 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0x8 (4 bytes)
  //          int32 = 0x1000 (4 bytes)
  //          int32 = 0xa21 (4 bytes)
  //          int32 = 0xc (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //          int32 = 0xce3 (4 bytes)
  //          int32 = 0x6c1b (4 bytes)
  //          int32 = 0x8000 (4 bytes)
  //          int32 = 0x6 (4 bytes)
  //          int32 = 0x5 (4 bytes)
  //          int32 = 0xb1e (4 bytes)
  //          int32 = 0x1 (4 bytes)
  //          int32 = 0x200 (4 bytes)
  //          int32 = 0xffff3441 (4 bytes)
  //          int32 = 0x7 (4 bytes)
  //        }
  //      }
  //    }
  //    len: len = 0x45c (8 bytes)
  //  ]
  NONFAILING(
      memcpy((void*)0x200000000400,
             "syz0\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
             "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
             "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
             "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
             "\000\000\000\000\000\000\000\000\000\000\000\000\000",
             80));
  NONFAILING(*(uint16_t*)0x200000000450 = 0x807);
  NONFAILING(*(uint16_t*)0x200000000452 = 0x83);
  NONFAILING(*(uint16_t*)0x200000000454 = 6);
  NONFAILING(*(uint16_t*)0x200000000456 = 0xfffa);
  NONFAILING(*(uint32_t*)0x200000000458 = 0x2000001d);
  NONFAILING(*(uint32_t*)0x20000000045c = 0x8000);
  NONFAILING(*(uint32_t*)0x200000000460 = 0xc95a);
  NONFAILING(*(uint32_t*)0x200000000464 = 0x12);
  NONFAILING(*(uint32_t*)0x200000000468 = 9);
  NONFAILING(*(uint32_t*)0x20000000046c = 0x80);
  NONFAILING(*(uint32_t*)0x200000000470 = 2);
  NONFAILING(*(uint32_t*)0x200000000474 = 3);
  NONFAILING(*(uint32_t*)0x200000000478 = 0x7f);
  NONFAILING(*(uint32_t*)0x20000000047c = 6);
  NONFAILING(*(uint32_t*)0x200000000480 = 0x49);
  NONFAILING(*(uint32_t*)0x200000000484 = 0x39cc191b);
  NONFAILING(*(uint32_t*)0x200000000488 = 0x5f);
  NONFAILING(*(uint32_t*)0x20000000048c = 9);
  NONFAILING(*(uint32_t*)0x200000000490 = 5);
  NONFAILING(*(uint32_t*)0x200000000494 = 0xffff2d37);
  NONFAILING(*(uint32_t*)0x200000000498 = 3);
  NONFAILING(*(uint32_t*)0x20000000049c = 0x46);
  NONFAILING(*(uint32_t*)0x2000000004a0 = 4);
  NONFAILING(*(uint32_t*)0x2000000004a4 = 0);
  NONFAILING(*(uint32_t*)0x2000000004a8 = 4);
  NONFAILING(*(uint32_t*)0x2000000004ac = 8);
  NONFAILING(*(uint32_t*)0x2000000004b0 = 2);
  NONFAILING(*(uint32_t*)0x2000000004b4 = 4);
  NONFAILING(*(uint32_t*)0x2000000004b8 = 0x3c5b);
  NONFAILING(*(uint32_t*)0x2000000004bc = 0x90);
  NONFAILING(*(uint32_t*)0x2000000004c0 = 0x24);
  NONFAILING(*(uint32_t*)0x2000000004c4 = 9);
  NONFAILING(*(uint32_t*)0x2000000004c8 = -1);
  NONFAILING(*(uint32_t*)0x2000000004cc = 0x1f461e2c);
  NONFAILING(*(uint32_t*)0x2000000004d0 = 2);
  NONFAILING(*(uint32_t*)0x2000000004d4 = 0xe661);
  NONFAILING(*(uint32_t*)0x2000000004d8 = 4);
  NONFAILING(*(uint32_t*)0x2000000004dc = 6);
  NONFAILING(*(uint32_t*)0x2000000004e0 = 0xffff0001);
  NONFAILING(*(uint32_t*)0x2000000004e4 = 2);
  NONFAILING(*(uint32_t*)0x2000000004e8 = 0x4c74);
  NONFAILING(*(uint32_t*)0x2000000004ec = 0x80000000);
  NONFAILING(*(uint32_t*)0x2000000004f0 = 0x242);
  NONFAILING(*(uint32_t*)0x2000000004f4 = 0);
  NONFAILING(*(uint32_t*)0x2000000004f8 = 0xe);
  NONFAILING(*(uint32_t*)0x2000000004fc = 0x1000);
  NONFAILING(*(uint32_t*)0x200000000500 = 4);
  NONFAILING(*(uint32_t*)0x200000000504 = 7);
  NONFAILING(*(uint32_t*)0x200000000508 = 7);
  NONFAILING(*(uint32_t*)0x20000000050c = 1);
  NONFAILING(*(uint32_t*)0x200000000510 = 7);
  NONFAILING(*(uint32_t*)0x200000000514 = 0);
  NONFAILING(*(uint32_t*)0x200000000518 = 0x41);
  NONFAILING(*(uint32_t*)0x20000000051c = 3);
  NONFAILING(*(uint32_t*)0x200000000520 = 6);
  NONFAILING(*(uint32_t*)0x200000000524 = 6);
  NONFAILING(*(uint32_t*)0x200000000528 = -1);
  NONFAILING(*(uint32_t*)0x20000000052c = 5);
  NONFAILING(*(uint32_t*)0x200000000530 = 0);
  NONFAILING(*(uint32_t*)0x200000000534 = 8);
  NONFAILING(*(uint32_t*)0x200000000538 = 0);
  NONFAILING(*(uint32_t*)0x20000000053c = 5);
  NONFAILING(*(uint32_t*)0x200000000540 = 0);
  NONFAILING(*(uint32_t*)0x200000000544 = 0x8000005);
  NONFAILING(*(uint32_t*)0x200000000548 = 6);
  NONFAILING(*(uint32_t*)0x20000000054c = 0xb);
  NONFAILING(*(uint32_t*)0x200000000550 = 4);
  NONFAILING(*(uint32_t*)0x200000000554 = 1);
  NONFAILING(*(uint32_t*)0x200000000558 = 0x40);
  NONFAILING(*(uint32_t*)0x20000000055c = 0x10000007);
  NONFAILING(*(uint32_t*)0x200000000560 = 0xffff);
  NONFAILING(*(uint32_t*)0x200000000564 = 0x8000012d);
  NONFAILING(*(uint32_t*)0x200000000568 = 0x8000);
  NONFAILING(*(uint32_t*)0x20000000056c = 0x10);
  NONFAILING(*(uint32_t*)0x200000000570 = 0xfffffff3);
  NONFAILING(*(uint32_t*)0x200000000574 = 0x129432e6);
  NONFAILING(*(uint32_t*)0x200000000578 = 0xcd);
  NONFAILING(*(uint32_t*)0x20000000057c = 0x40c);
  NONFAILING(*(uint32_t*)0x200000000580 = 9);
  NONFAILING(*(uint32_t*)0x200000000584 = 0x2bf);
  NONFAILING(*(uint32_t*)0x200000000588 = 0x6c9);
  NONFAILING(*(uint32_t*)0x20000000058c = 1);
  NONFAILING(*(uint32_t*)0x200000000590 = 0xfffffffc);
  NONFAILING(*(uint32_t*)0x200000000594 = 3);
  NONFAILING(*(uint32_t*)0x200000000598 = 0);
  NONFAILING(*(uint32_t*)0x20000000059c = 7);
  NONFAILING(*(uint32_t*)0x2000000005a0 = 0xeb);
  NONFAILING(*(uint32_t*)0x2000000005a4 = 0x5573);
  NONFAILING(*(uint32_t*)0x2000000005a8 = 0xe);
  NONFAILING(*(uint32_t*)0x2000000005ac = 0x312);
  NONFAILING(*(uint32_t*)0x2000000005b0 = 0x78);
  NONFAILING(*(uint32_t*)0x2000000005b4 = 0xea4);
  NONFAILING(*(uint32_t*)0x2000000005b8 = 0x10);
  NONFAILING(*(uint32_t*)0x2000000005bc = 0xda7a);
  NONFAILING(*(uint32_t*)0x2000000005c0 = 4);
  NONFAILING(*(uint32_t*)0x2000000005c4 = 0x8000);
  NONFAILING(*(uint32_t*)0x2000000005c8 = 0x2009);
  NONFAILING(*(uint32_t*)0x2000000005cc = 0x400);
  NONFAILING(*(uint32_t*)0x2000000005d0 = 0x401);
  NONFAILING(*(uint32_t*)0x2000000005d4 = 6);
  NONFAILING(*(uint32_t*)0x2000000005d8 = 7);
  NONFAILING(*(uint32_t*)0x2000000005dc = 4);
  NONFAILING(*(uint32_t*)0x2000000005e0 = 5);
  NONFAILING(*(uint32_t*)0x2000000005e4 = 5);
  NONFAILING(*(uint32_t*)0x2000000005e8 = 0x5f2e);
  NONFAILING(*(uint32_t*)0x2000000005ec = 4);
  NONFAILING(*(uint32_t*)0x2000000005f0 = 0);
  NONFAILING(*(uint32_t*)0x2000000005f4 = 2);
  NONFAILING(*(uint32_t*)0x2000000005f8 = 2);
  NONFAILING(*(uint32_t*)0x2000000005fc = 9);
  NONFAILING(*(uint32_t*)0x200000000600 = 4);
  NONFAILING(*(uint32_t*)0x200000000604 = 9);
  NONFAILING(*(uint32_t*)0x200000000608 = 0x10000008);
  NONFAILING(*(uint32_t*)0x20000000060c = 0xfffffffc);
  NONFAILING(*(uint32_t*)0x200000000610 = 6);
  NONFAILING(*(uint32_t*)0x200000000614 = 7);
  NONFAILING(*(uint32_t*)0x200000000618 = 0x8000);
  NONFAILING(*(uint32_t*)0x20000000061c = 0);
  NONFAILING(*(uint32_t*)0x200000000620 = 0xfe000000);
  NONFAILING(*(uint32_t*)0x200000000624 = 0xffff);
  NONFAILING(*(uint32_t*)0x200000000628 = 2);
  NONFAILING(*(uint32_t*)0x20000000062c = 0x7f);
  NONFAILING(*(uint32_t*)0x200000000630 = 5);
  NONFAILING(*(uint32_t*)0x200000000634 = 3);
  NONFAILING(*(uint32_t*)0x200000000638 = 3);
  NONFAILING(*(uint32_t*)0x20000000063c = 9);
  NONFAILING(*(uint32_t*)0x200000000640 = 1);
  NONFAILING(*(uint32_t*)0x200000000644 = 7);
  NONFAILING(*(uint32_t*)0x200000000648 = 3);
  NONFAILING(*(uint32_t*)0x20000000064c = 2);
  NONFAILING(*(uint32_t*)0x200000000650 = 0x43);
  NONFAILING(*(uint32_t*)0x200000000654 = 0x42);
  NONFAILING(*(uint32_t*)0x200000000658 = 2);
  NONFAILING(*(uint32_t*)0x20000000065c = 7);
  NONFAILING(*(uint32_t*)0x200000000660 = 3);
  NONFAILING(*(uint32_t*)0x200000000664 = 0);
  NONFAILING(*(uint32_t*)0x200000000668 = 4);
  NONFAILING(*(uint32_t*)0x20000000066c = 0xfffffffe);
  NONFAILING(*(uint32_t*)0x200000000670 = 9);
  NONFAILING(*(uint32_t*)0x200000000674 = 0x8d2);
  NONFAILING(*(uint32_t*)0x200000000678 = 8);
  NONFAILING(*(uint32_t*)0x20000000067c = 5);
  NONFAILING(*(uint32_t*)0x200000000680 = 0x7fff);
  NONFAILING(*(uint32_t*)0x200000000684 = 0);
  NONFAILING(*(uint32_t*)0x200000000688 = 5);
  NONFAILING(*(uint32_t*)0x20000000068c = 0xb);
  NONFAILING(*(uint32_t*)0x200000000690 = 0x20004);
  NONFAILING(*(uint32_t*)0x200000000694 = 5);
  NONFAILING(*(uint32_t*)0x200000000698 = 5);
  NONFAILING(*(uint32_t*)0x20000000069c = 0);
  NONFAILING(*(uint32_t*)0x2000000006a0 = 9);
  NONFAILING(*(uint32_t*)0x2000000006a4 = 5);
  NONFAILING(*(uint32_t*)0x2000000006a8 = 8);
  NONFAILING(*(uint32_t*)0x2000000006ac = 0x83);
  NONFAILING(*(uint32_t*)0x2000000006b0 = 0x4000003);
  NONFAILING(*(uint32_t*)0x2000000006b4 = 0x20000009);
  NONFAILING(*(uint32_t*)0x2000000006b8 = 0x3e7);
  NONFAILING(*(uint32_t*)0x2000000006bc = 9);
  NONFAILING(*(uint32_t*)0x2000000006c0 = 5);
  NONFAILING(*(uint32_t*)0x2000000006c4 = 2);
  NONFAILING(*(uint32_t*)0x2000000006c8 = 2);
  NONFAILING(*(uint32_t*)0x2000000006cc = 3);
  NONFAILING(*(uint32_t*)0x2000000006d0 = 0xd);
  NONFAILING(*(uint32_t*)0x2000000006d4 = 4);
  NONFAILING(*(uint32_t*)0x2000000006d8 = 0x6d01);
  NONFAILING(*(uint32_t*)0x2000000006dc = 0x8005);
  NONFAILING(*(uint32_t*)0x2000000006e0 = 9);
  NONFAILING(*(uint32_t*)0x2000000006e4 = 0x800000);
  NONFAILING(*(uint32_t*)0x2000000006e8 = 0x200);
  NONFAILING(*(uint32_t*)0x2000000006ec = 0x80);
  NONFAILING(*(uint32_t*)0x2000000006f0 = 3);
  NONFAILING(*(uint32_t*)0x2000000006f4 = 4);
  NONFAILING(*(uint32_t*)0x2000000006f8 = 0x2950bfaf);
  NONFAILING(*(uint32_t*)0x2000000006fc = 0x1000);
  NONFAILING(*(uint32_t*)0x200000000700 = 0xa2);
  NONFAILING(*(uint32_t*)0x200000000704 = 7);
  NONFAILING(*(uint32_t*)0x200000000708 = 5);
  NONFAILING(*(uint32_t*)0x20000000070c = 5);
  NONFAILING(*(uint32_t*)0x200000000710 = 5);
  NONFAILING(*(uint32_t*)0x200000000714 = 0xac8);
  NONFAILING(*(uint32_t*)0x200000000718 = 7);
  NONFAILING(*(uint32_t*)0x20000000071c = 2);
  NONFAILING(*(uint32_t*)0x200000000720 = 3);
  NONFAILING(*(uint32_t*)0x200000000724 = 0x7ff);
  NONFAILING(*(uint32_t*)0x200000000728 = 0xfffffff9);
  NONFAILING(*(uint32_t*)0x20000000072c = 4);
  NONFAILING(*(uint32_t*)0x200000000730 = 1);
  NONFAILING(*(uint32_t*)0x200000000734 = 2);
  NONFAILING(*(uint32_t*)0x200000000738 = 3);
  NONFAILING(*(uint32_t*)0x20000000073c = 6);
  NONFAILING(*(uint32_t*)0x200000000740 = 0x1c);
  NONFAILING(*(uint32_t*)0x200000000744 = 0x120000);
  NONFAILING(*(uint32_t*)0x200000000748 = 3);
  NONFAILING(*(uint32_t*)0x20000000074c = 0x8003);
  NONFAILING(*(uint32_t*)0x200000000750 = 0xa2ed);
  NONFAILING(*(uint32_t*)0x200000000754 = 0x404);
  NONFAILING(*(uint32_t*)0x200000000758 = 0x25);
  NONFAILING(*(uint32_t*)0x20000000075c = 9);
  NONFAILING(*(uint32_t*)0x200000000760 = 0xbb31);
  NONFAILING(*(uint32_t*)0x200000000764 = 0x296);
  NONFAILING(*(uint32_t*)0x200000000768 = 0xb);
  NONFAILING(*(uint32_t*)0x20000000076c = 5);
  NONFAILING(*(uint32_t*)0x200000000770 = 0x938);
  NONFAILING(*(uint32_t*)0x200000000774 = 6);
  NONFAILING(*(uint32_t*)0x200000000778 = 6);
  NONFAILING(*(uint32_t*)0x20000000077c = 0);
  NONFAILING(*(uint32_t*)0x200000000780 = 5);
  NONFAILING(*(uint32_t*)0x200000000784 = 0xce7);
  NONFAILING(*(uint32_t*)0x200000000788 = 0x53f53804);
  NONFAILING(*(uint32_t*)0x20000000078c = 0);
  NONFAILING(*(uint32_t*)0x200000000790 = 0xa);
  NONFAILING(*(uint32_t*)0x200000000794 = 5);
  NONFAILING(*(uint32_t*)0x200000000798 = 3);
  NONFAILING(*(uint32_t*)0x20000000079c = 0x101);
  NONFAILING(*(uint32_t*)0x2000000007a0 = 0x10000);
  NONFAILING(*(uint32_t*)0x2000000007a4 = 6);
  NONFAILING(*(uint32_t*)0x2000000007a8 = 0x207fff);
  NONFAILING(*(uint32_t*)0x2000000007ac = 0xffff);
  NONFAILING(*(uint32_t*)0x2000000007b0 = 2);
  NONFAILING(*(uint32_t*)0x2000000007b4 = 2);
  NONFAILING(*(uint32_t*)0x2000000007b8 = 5);
  NONFAILING(*(uint32_t*)0x2000000007bc = 1);
  NONFAILING(*(uint32_t*)0x2000000007c0 = 2);
  NONFAILING(*(uint32_t*)0x2000000007c4 = 0x148);
  NONFAILING(*(uint32_t*)0x2000000007c8 = 0x60a7);
  NONFAILING(*(uint32_t*)0x2000000007cc = 6);
  NONFAILING(*(uint32_t*)0x2000000007d0 = 6);
  NONFAILING(*(uint32_t*)0x2000000007d4 = -1);
  NONFAILING(*(uint32_t*)0x2000000007d8 = 0x80000000);
  NONFAILING(*(uint32_t*)0x2000000007dc = 5);
  NONFAILING(*(uint32_t*)0x2000000007e0 = 8);
  NONFAILING(*(uint32_t*)0x2000000007e4 = 0xc8);
  NONFAILING(*(uint32_t*)0x2000000007e8 = 7);
  NONFAILING(*(uint32_t*)0x2000000007ec = 0xfffff000);
  NONFAILING(*(uint32_t*)0x2000000007f0 = 0x10003);
  NONFAILING(*(uint32_t*)0x2000000007f4 = 3);
  NONFAILING(*(uint32_t*)0x2000000007f8 = 0x7e);
  NONFAILING(*(uint32_t*)0x2000000007fc = 0x20100);
  NONFAILING(*(uint32_t*)0x200000000800 = 0x9602);
  NONFAILING(*(uint32_t*)0x200000000804 = 0xc639);
  NONFAILING(*(uint32_t*)0x200000000808 = 0x20000002);
  NONFAILING(*(uint32_t*)0x20000000080c = 4);
  NONFAILING(*(uint32_t*)0x200000000810 = 6);
  NONFAILING(*(uint32_t*)0x200000000814 = 1);
  NONFAILING(*(uint32_t*)0x200000000818 = 0x50080);
  NONFAILING(*(uint32_t*)0x20000000081c = 5);
  NONFAILING(*(uint32_t*)0x200000000820 = 8);
  NONFAILING(*(uint32_t*)0x200000000824 = 0x1000);
  NONFAILING(*(uint32_t*)0x200000000828 = 0xa21);
  NONFAILING(*(uint32_t*)0x20000000082c = 0xc);
  NONFAILING(*(uint32_t*)0x200000000830 = 7);
  NONFAILING(*(uint32_t*)0x200000000834 = 0xce3);
  NONFAILING(*(uint32_t*)0x200000000838 = 0x6c1b);
  NONFAILING(*(uint32_t*)0x20000000083c = 0x8000);
  NONFAILING(*(uint32_t*)0x200000000840 = 6);
  NONFAILING(*(uint32_t*)0x200000000844 = 5);
  NONFAILING(*(uint32_t*)0x200000000848 = 0xb1e);
  NONFAILING(*(uint32_t*)0x20000000084c = 1);
  NONFAILING(*(uint32_t*)0x200000000850 = 0x200);
  NONFAILING(*(uint32_t*)0x200000000854 = 0xffff3441);
  NONFAILING(*(uint32_t*)0x200000000858 = 7);
  syscall(__NR_write, /*fd=*/(intptr_t)-1, /*data=*/0x200000000400ul,
          /*len=*/0x45cul);
  //  mmap arguments: [
  //    addr: VMA[0xb36000]
  //    len: len = 0xb36000 (4 bytes)
  //    prot: mmap_prot = 0x2 (8 bytes)
  //    flags: mmap_flags = 0x28011 (8 bytes)
  //    fd: fd (resource)
  //    offset: intptr = 0x0 (8 bytes)
  //  ]
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0xb36000,
          /*prot=PROT_WRITE*/ 2ul,
          /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  //  syz_ublk_setup_io_uring arguments: [
  //    entries: int32 = 0x6dd9 (4 bytes)
  //    params: ptr[inout, io_uring_params] {
  //      io_uring_params {
  //        sq_entries: int32 = 0x0 (4 bytes)
  //        cq_entries: int32 = 0x74d0 (4 bytes)
  //        flags: io_uring_setup_flags = 0x40 (4 bytes)
  //        sq_thread_cpu: int32 = 0x2 (4 bytes)
  //        sq_thread_idle: int32 = 0x3d (4 bytes)
  //        features: int32 = 0x0 (4 bytes)
  //        wq_fd: fd_io_uring (resource)
  //        resv: buffer: {00 00 00 00 00 00 00 00 00 00 00 00} (length 0xc)
  //        sq_off: io_sqring_offsets {
  //          head: int32 = 0x0 (4 bytes)
  //          tail: int32 = 0x0 (4 bytes)
  //          ring_mask: int32 = 0x0 (4 bytes)
  //          ring_entries: int32 = 0x0 (4 bytes)
  //          flags: int32 = 0x0 (4 bytes)
  //          dropped: int32 = 0x0 (4 bytes)
  //          array: int32 = 0x0 (4 bytes)
  //          resv1: int32 = 0x0 (4 bytes)
  //          user_addr: int64 = 0x0 (8 bytes)
  //        }
  //        cq_off: io_cqring_offsets {
  //          head: int32 = 0x0 (4 bytes)
  //          tail: int32 = 0x0 (4 bytes)
  //          ring_mask: int32 = 0x0 (4 bytes)
  //          ring_entries: int32 = 0x0 (4 bytes)
  //          overflow: int32 = 0x0 (4 bytes)
  //          cqes: int32 = 0x0 (4 bytes)
  //          flags: int32 = 0x0 (4 bytes)
  //          resv1: int32 = 0x0 (4 bytes)
  //          user_addr: int64 = 0x0 (8 bytes)
  //        }
  //      }
  //    }
  //    ring_params_ptr: nil
  //    ring_ptr: nil
  //    sqes_ptr: nil
  //  ]
  //  returns fd_io_uring
  NONFAILING(*(uint32_t*)0x200000000244 = 0x74d0);
  NONFAILING(*(uint32_t*)0x200000000248 = 0x40);
  NONFAILING(*(uint32_t*)0x20000000024c = 2);
  NONFAILING(*(uint32_t*)0x200000000250 = 0x3d);
  NONFAILING(*(uint32_t*)0x200000000258 = -1);
  NONFAILING(memset((void*)0x20000000025c, 0, 12));
  NONFAILING(syz_ublk_setup_io_uring(
      /*entries=*/0x6dd9, /*params=*/0x200000000240, /*ring_params_ptr=*/0,
      /*ring_ptr=*/0, /*sqes_ptr=*/0));
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  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);
  install_segv_handler();
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}