// https://syzkaller.appspot.com/bug?id=3decf6091df2b1c514270c36e111076d7db1b5ce
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <sched.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.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/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/veth.h>

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

struct csum_inet {
  uint32_t acc;
};

static void csum_inet_init(struct csum_inet* csum)
{
  csum->acc = 0;
}

static void csum_inet_update(struct csum_inet* csum, const uint8_t* data,
                             size_t length)
{
  if (length == 0)
    return;
  size_t i = 0;
  for (; i < length - 1; i += 2)
    csum->acc += *(uint16_t*)&data[i];
  if (length & 1)
    csum->acc += le16toh((uint16_t)data[length - 1]);
  while (csum->acc > 0xffff)
    csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}

static uint16_t csum_inet_digest(struct csum_inet* csum)
{
  return ~csum->acc;
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[4096];
};

static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
                         const void* data, int size)
{
  memset(nlmsg, 0, sizeof(*nlmsg));
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_type = typ;
  hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
  memcpy(hdr + 1, data, size);
  nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}

static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
                         int size)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_len = sizeof(*attr) + size;
  attr->nla_type = typ;
  if (size > 0)
    memcpy(attr + 1, data, size);
  nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}

static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
                            int* reply_len, bool dofail)
{
  if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
    exit(1);
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
  struct sockaddr_nl addr;
  memset(&addr, 0, sizeof(addr));
  addr.nl_family = AF_NETLINK;
  ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                     (struct sockaddr*)&addr, sizeof(addr));
  if (n != (ssize_t)hdr->nlmsg_len) {
    if (dofail)
      exit(1);
    return -1;
  }
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (n < 0) {
    if (dofail)
      exit(1);
    return -1;
  }
  if (n < (ssize_t)sizeof(struct nlmsghdr)) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type != NLMSG_ERROR) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  errno = -((struct nlmsgerr*)(hdr + 1))->error;
  return -errno;
}

static int netlink_send(struct nlmsg* nlmsg, int sock)
{
  return netlink_send_ext(nlmsg, sock, 0, NULL, true);
}

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                                         NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

static void netlink_device_change(struct nlmsg* nlmsg, int sock,
                                  const char* name, bool up, const char* master,
                                  const void* mac, int macsize,
                                  const char* new_name)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  hdr.ifi_index = if_nametoindex(name);
  netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
  if (new_name)
    netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
  if (master) {
    int ifindex = if_nametoindex(master);
    netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
  }
  if (macsize)
    netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
                            const void* addr, int addrsize)
{
  struct ifaddrmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
  hdr.ifa_scope = RT_SCOPE_UNIVERSE;
  hdr.ifa_index = if_nametoindex(dev);
  netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
  netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
  return netlink_send(nlmsg, sock);
}

static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in_addr in_addr;
  inet_pton(AF_INET, addr, &in_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
  if (err < 0) {
  }
}

static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, addr, &in6_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
  if (err < 0) {
  }
}

static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
                              const void* addr, int addrsize, const void* mac,
                              int macsize)
{
  struct ndmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ndm_ifindex = if_nametoindex(name);
  hdr.ndm_state = NUD_PERMANENT;
  netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, NDA_DST, addr, addrsize);
  netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static struct nlmsg nlmsg;

static int tunfd = -1;

#define TUN_IFACE "syz_tun"
#define LOCAL_MAC 0xaaaaaaaaaaaa
#define REMOTE_MAC 0xaaaaaaaaaabb
#define LOCAL_IPV4 "172.20.20.170"
#define REMOTE_IPV4 "172.20.20.187"
#define LOCAL_IPV6 "fe80::aa"
#define REMOTE_IPV6 "fe80::bb"

#define IFF_NAPI 0x0010

static void initialize_tun(void)
{
  tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
  if (tunfd == -1) {
    printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
    printf("otherwise fuzzing or reproducing might not work as intended\n");
    return;
  }
  const int kTunFd = 200;
  if (dup2(tunfd, kTunFd) < 0)
    exit(1);
  close(tunfd);
  tunfd = kTunFd;
  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    exit(1);
  }
  char sysctl[64];
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE);
  write_file(sysctl, "0");
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE);
  write_file(sysctl, "0");
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4);
  netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6);
  uint64_t macaddr = REMOTE_MAC;
  struct in_addr in_addr;
  inet_pton(AF_INET, REMOTE_IPV4, &in_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr),
                    &macaddr, ETH_ALEN);
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr),
                    &macaddr, ETH_ALEN);
  macaddr = LOCAL_MAC;
  netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN,
                        NULL);
  close(sock);
}

static long syz_emit_ethernet(volatile long a0, volatile long a1,
                              volatile long a2)
{
  if (tunfd < 0)
    return (uintptr_t)-1;
  uint32_t length = a0;
  char* data = (char*)a1;
  return write(tunfd, data, length);
}

static void setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/newroot/syz-inputs", 0700))
    exit(1);
  if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL,
            bind_mount_flags | MS_RDONLY, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

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

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

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

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

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

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

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

void loop(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memset((void*)0x2000000003c0, 187, 6);
  memset((void*)0x2000000003c6, 170, 5);
  *(uint8_t*)0x2000000003cb = 0xbb;
  *(uint16_t*)0x2000000003cc = htobe16(0x86dd);
  STORE_BY_BITMASK(uint8_t, , 0x2000000003ce, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x2000000003ce, 6, 4, 4);
  memcpy((void*)0x2000000003cf, "\x12\x2d\x92", 3);
  *(uint16_t*)0x2000000003d2 = htobe16(0x380);
  *(uint8_t*)0x2000000003d4 = 0x3a;
  *(uint8_t*)0x2000000003d5 = -1;
  *(uint8_t*)0x2000000003d6 = 0xfe;
  *(uint8_t*)0x2000000003d7 = 0x80;
  memset((void*)0x2000000003d8, 0, 13);
  *(uint8_t*)0x2000000003e5 = 0xbb;
  *(uint8_t*)0x2000000003e6 = -1;
  *(uint8_t*)0x2000000003e7 = 2;
  memset((void*)0x2000000003e8, 0, 13);
  *(uint8_t*)0x2000000003f5 = 1;
  *(uint8_t*)0x2000000003f6 = 0x86;
  *(uint8_t*)0x2000000003f7 = 0;
  *(uint16_t*)0x2000000003f8 = htobe16(0);
  *(uint8_t*)0x2000000003fa = 0;
  *(uint8_t*)0x2000000003fb = 0xa6;
  *(uint16_t*)0x2000000003fc = 0;
  *(uint32_t*)0x2000000003fe = 0;
  *(uint32_t*)0x200000000402 = 0;
  *(uint8_t*)0x200000000406 = 3;
  *(uint8_t*)0x200000000407 = 0xa;
  memcpy((void*)0x200000000408,
         "\xa7\x8c\xe5\x40\x06\x59\x80\x80\xa8\x03\x00\x37\x00\x40\x23\x49\x3b"
         "\x87\xaa\xfa\xff\xff\xff\xff\xff\xff\xff\x23\x73\x24\x72\xee\xfa\x45"
         "\xad\x96\x57\x92\x69\x74\x8e\x25\x4c\x1e\x4a\x8a\x8b\x3f\x0a\xb0\xc4"
         "\x30\xd3\xbe\x27\xdf\x3e\x34\x06\x6d\x42\xca\x0a\x5c\x15\xb3\x7a\xda"
         "\xc1\x50\x84\xdb\xaf\x73\x6b\x41\xe5\xaf\x18\x02",
         80);
  *(uint8_t*)0x200000000458 = 0;
  *(uint8_t*)0x200000000459 = 1;
  memcpy((void*)0x20000000045a,
         "\x00\x00\x00\x05\x00\x00\x00\x00\x26\x00\x04\x00", 12);
  *(uint8_t*)0x200000000466 = 0x18;
  *(uint8_t*)0x200000000467 = 0x18;
  memcpy(
      (void*)0x200000000468,
      "\xfe\x90\x6d\x26\xef\xe3\x93\x93\xfe\x08\xf7\x3e\xab\xc5\x97\x7b\x11\x90"
      "\xa3\xa6\xad\x83\x38\xf1\x51\x1c\xdd\x10\xc3\x5d\x8f\x6d\xe7\x9f\xc7\xfd"
      "\x17\x5f\x75\x64\x9f\xa3\x68\xa3\x2c\x82\x9a\xf0\x2d\x7f\x44\xd9\x23\x24"
      "\xa7\x05\x1e\x46\x0a\x13\xdd\xde\x25\xa5\xb8\x5b\x9d\x93\x09\x14\x62\x5d"
      "\x8a\x04\x9b\x4c\xf0\xd1\x29\x80\x6a\x61\x0a\xd8\x47\x7a\x24\x99\xa9\xa0"
      "\x52\x7f\x75\xb6\x55\xa6\x65\x3d\x03\x63\xa9\x79\xac\xf9\x3f\x88\xee\xa0"
      "\x7d\x68\x42\x3e\x90\x28\x04\x09\xde\x16\x57\x27\x5f\x71\x6a\x2b\xf2\x91"
      "\x5d\x17\x83\xe8\xeb\x47\x7b\x0d\x11\x70\xf0\xec\xbd\xef\x4c\x23\xe1\xb7"
      "\x6e\x9a\xb3\xd2\xfb\xe4\xb3\x44\x38\xd2\xa7\x75\x77\xed\xd0\xeb\xed\x96"
      "\x82\xb8\x51\xb3\x80\xae\x0c\xab\x28\x2a\xf9\xd7\xeb\xe6\x68\x17\x77\x04"
      "\xc5\xfd\x46\x98\xc9\x34\xde\x47\x31\xf3\xf6\x1e\xff\xc9\x78",
      195);
  *(uint8_t*)0x20000000052b = 0;
  *(uint8_t*)0x20000000052c = 0x1d;
  memcpy(
      (void*)0x20000000052d,
      "\x06\xaa\x85\x61\x61\x77\xc4\x1b\xc9\x43\xaf\xcb\x84\x61\x97\x55\x40\x39"
      "\x46\xb0\x73\x0a\x18\xd5\xc3\x8c\xf7\xdc\xad\x83\x0f\x2d\xc8\x67\x4b\x87"
      "\xba\x8b\x58\xf8\x1e\xce\x27\x97\x5c\xc3\x9e\x59\x5e\x9a\xf9\x0b\x4f\xe9"
      "\x2a\x38\xd2\x55\x51\xc2\xd9\xeb\xfc\x5d\xfc\x5a\x2a\x50\x1b\x7e\x48\x3d"
      "\xe3\xf8\x08\x89\x5c\x5f\x4a\x1a\x23\x67\xbc\x59\x1d\xd8\xb0\x94\x82\x2f"
      "\xf0\xde\xa0\x7c\x9a\x1f\x64\x3c\x82\x2a\x18\xb7\x9f\x7c\x5e\xba\x31\xfb"
      "\x68\xb2\xd7\x34\xa6\x67\x1e\x27\x18\x2a\xee\x96\xf2\x4a\x4a\x5c\xf3\x90"
      "\xda\xb2\x3b\x50\x0b\x0c\x02\x72\x47\x96\x11\xe4\xf7\xf4\x29\x9e\xc4\xd9"
      "\x26\xd4\x43\x36\x7b\x10\x51\x85\xe6\xec\xd9\x60\x2b\xa9\x53\x92\x34\x3e"
      "\x9b\xbd\x04\x7e\xf6\xbc\x1b\xa4\x23\x99\x90\x7c\xcd\x0a\x56\x2d\xb2\x12"
      "\xba\xa3\x9e\xb8\x16\x4e\x24\x00\x69\xf6\x56\xd3\xa0\x5f\xec\xf8\x94\x22"
      "\x2a\x14\x11\x23\xf5\xac\x01\x00\x00\x00\x00\x00\x00\x00\x90\xaa\x23\x5a"
      "\x67\x06\x70\xff\xc5\xdc\x49\xdf\xb5\x8d\x00\x00\x00\x00\x00\x00\x00",
      233);
  *(uint8_t*)0x200000000616 = 0x19;
  *(uint8_t*)0x200000000617 = 0xb;
  memcpy(
      (void*)0x200000000618,
      "\x17\xdc\xea\x46\x80\x5d\x48\x09\xc2\x05\x47\x40\x6b\x18\x90\x1b\x0a\xef"
      "\xf0\x4c\x03\x00\xf3\xc7\x5d\xc2\xd2\x27\xa8\x3b\x89\x48\x3b\x10\x84\x74"
      "\x34\x75\x67\x15\x45\xe6\x5e\xb2\xe9\xac\x94\x6a\x3f\x0e\x2b\xc4\x61\x9f"
      "\x91\x39\x4c\x02\xbc\xfb\xbb\x7d\x71\x13\x85\x37\xd6\x8e\x2d\x2c\x63\x93"
      "\xa9\xf3\xbe\xcd\x1a\x9f\x51\xa9\x48\xb5\xb3\x03\xf4\xf0\x03",
      87);
  *(uint8_t*)0x20000000066f = 0x21;
  *(uint8_t*)0x200000000670 = 7;
  memcpy((void*)0x200000000671,
         "\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x88\x79\xe6\x64\x85\x20\x1a\x00"
         "\x15\xca\x83\x74\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00",
         55);
  *(uint8_t*)0x2000000006a8 = 0;
  *(uint8_t*)0x2000000006a9 = 0x14;
  memcpy((void*)0x2000000006aa,
         "\x5e\x14\xf0\xe7\xe7\x2d\x42\xcf\xb3\xf2\x7f\xaf\xb6\x08\x45\xf9\x0b"
         "\x6d\xfc\x2e\x37\xbc\x87\xc6\x90\x5b\xbc\x94\xd3\x3e\x1e\xa7\x1a\x28"
         "\x10\x5f\x54\x3e\x86\x8a\x8a\x53\xb3\x60\xa9\xd3\x3e\x2b\x1e\x26\xeb"
         "\x1d\x18\x06\x5d\xaa\x76\x28\xcf\x9e\xf0\x83\x61\x1c\x9f\x6a\xe2\xe1"
         "\xeb\x3d\x8b\xf9\xc6\xab\x26\x42\xc4\x80\x82\x88\xe6\x2a\xfb\xf0\x32"
         "\x69\xf1\xf9\x8a\xea\x6a\xb3\xbe\xb5\xfd\xc5\xfd\xaa\xbc\x2c\x67\x6d"
         "\x88\x00\x87\x1a\x6a\xa5\x41\x55\xde\xa2\xd9\x95\xcb\x22\xc9\x92\x4e"
         "\x0a\xd3\x8c\x69\x67\x05\x2c\xc7\x78\x6d\x77\x9b\x83\x53\xaa\xc3\x3a"
         "\x57\xd7\x9b\x05\x61\x3a\x12\x32\x8f\x61\x12\x90\x17\xfa\x63\x2d\xbf"
         "\x04\x54\x21\x88\xb1\x96\xe2\x13\x40\x8c",
         163);
  *(uint8_t*)0x20000000074d = 3;
  *(uint8_t*)0x20000000074e = 5;
  memcpy((void*)0x20000000074f,
         "\xd5\x17\x00\x00\xdc\xe9\x67\x4a\x36\xda\x01\x8d\xff\x16\xe7\x0b\x8b"
         "\x14\xc4\xb7\xa9\x4f\xe1\x8e\x88\x60\x5a\xa6\xbe\x1a\x02\xa3\x26\xa6"
         "\xbc\xe6\x5f\x81\xed",
         39);
  struct csum_inet csum_1;
  csum_inet_init(&csum_1);
  csum_inet_update(&csum_1, (const uint8_t*)0x2000000003d6, 16);
  csum_inet_update(&csum_1, (const uint8_t*)0x2000000003e6, 16);
  uint32_t csum_1_chunk_2 = 0x80030000;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_2, 4);
  uint32_t csum_1_chunk_3 = 0x3a000000;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_3, 4);
  csum_inet_update(&csum_1, (const uint8_t*)0x2000000003f6, 896);
  *(uint16_t*)0x2000000003f8 = csum_inet_digest(&csum_1);
  syz_emit_ethernet(/*len=*/0x3b6, /*packet=*/0x2000000003c0, /*frags=*/0);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  do_sandbox_none();
  return 0;
}