// https://syzkaller.appspot.com/bug?id=e1fe69e08e3147dc5d293aeae5df783281cc04b2
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

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

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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 thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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

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

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

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

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

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

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

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

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

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

static void netlink_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 struct nlmsg nlmsg;

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

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

#define NL802154_CMD_SET_SHORT_ADDR 11
#define NL802154_ATTR_IFINDEX 3
#define NL802154_ATTR_SHORT_ADDR 10

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

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 8; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      event_timedwait(&th->done, 50);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    res = syscall(__NR_socket, /*domain=*/0xaul, /*type=*/3ul, /*proto=*/2);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    memcpy((void*)0x20000b00,
           "raw\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",
           32);
    *(uint32_t*)0x20000b20 = 8;
    *(uint32_t*)0x20000b24 = 3;
    *(uint32_t*)0x20000b28 = 0x428;
    *(uint32_t*)0x20000b2c = 0xd0;
    *(uint32_t*)0x20000b30 = -1;
    *(uint32_t*)0x20000b34 = -1;
    *(uint32_t*)0x20000b38 = 0;
    *(uint32_t*)0x20000b3c = -1;
    *(uint32_t*)0x20000b40 = 0x358;
    *(uint32_t*)0x20000b44 = -1;
    *(uint32_t*)0x20000b48 = -1;
    *(uint32_t*)0x20000b4c = 0x358;
    *(uint32_t*)0x20000b50 = -1;
    *(uint32_t*)0x20000b54 = 3;
    *(uint64_t*)0x20000b58 = 0;
    *(uint8_t*)0x20000b60 = 0xfc;
    *(uint8_t*)0x20000b61 = 0;
    memset((void*)0x20000b62, 0, 13);
    *(uint8_t*)0x20000b6f = 0;
    *(uint8_t*)0x20000b70 = -1;
    *(uint8_t*)0x20000b71 = 2;
    memset((void*)0x20000b72, 0, 13);
    *(uint8_t*)0x20000b7f = 1;
    *(uint32_t*)0x20000b80 = htobe32(0);
    *(uint32_t*)0x20000b84 = htobe32(0);
    *(uint32_t*)0x20000b88 = htobe32(0);
    *(uint32_t*)0x20000b8c = htobe32(0);
    *(uint32_t*)0x20000b90 = htobe32(0);
    *(uint32_t*)0x20000b94 = htobe32(0);
    *(uint32_t*)0x20000b98 = htobe32(0);
    *(uint32_t*)0x20000b9c = htobe32(0);
    memcpy((void*)0x20000ba0, "veth0_macvtap\000\000\000", 16);
    memcpy((void*)0x20000bb0, "dvmrp1\000\000\000\000\000\000\000\000\000\000",
           16);
    *(uint8_t*)0x20000bc0 = 0;
    *(uint8_t*)0x20000bd0 = 0;
    *(uint16_t*)0x20000be0 = 0;
    *(uint8_t*)0x20000be2 = 0;
    *(uint8_t*)0x20000be3 = 0;
    *(uint8_t*)0x20000be4 = 0;
    *(uint32_t*)0x20000be8 = 0;
    *(uint16_t*)0x20000bec = 0xa8;
    *(uint16_t*)0x20000bee = 0xd0;
    *(uint32_t*)0x20000bf0 = 0;
    *(uint64_t*)0x20000bf8 = 0;
    *(uint64_t*)0x20000c00 = 0;
    *(uint16_t*)0x20000c08 = 0x28;
    memcpy((void*)0x20000c0a,
           "NFQUEUE\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000c27 = 0;
    *(uint16_t*)0x20000c28 = 0;
    *(uint8_t*)0x20000c30 = 0xfe;
    *(uint8_t*)0x20000c31 = 0x80;
    memset((void*)0x20000c32, 0, 13);
    *(uint8_t*)0x20000c3f = 0xbb;
    memset((void*)0x20000c40, 0, 10);
    memset((void*)0x20000c4a, 255, 2);
    *(uint8_t*)0x20000c4c = 0xac;
    *(uint8_t*)0x20000c4d = 0x14;
    *(uint8_t*)0x20000c4e = 0x14;
    *(uint8_t*)0x20000c4f = 0;
    *(uint32_t*)0x20000c50 = htobe32(0);
    *(uint32_t*)0x20000c54 = htobe32(0);
    *(uint32_t*)0x20000c58 = htobe32(0);
    *(uint32_t*)0x20000c5c = htobe32(0);
    *(uint32_t*)0x20000c60 = htobe32(0);
    *(uint32_t*)0x20000c64 = htobe32(0);
    *(uint32_t*)0x20000c68 = htobe32(0);
    *(uint32_t*)0x20000c6c = htobe32(0);
    memcpy((void*)0x20000c70,
           "wg1\000\000\000\000\000\000\000\000\000\000\000\000\000", 16);
    memcpy((void*)0x20000c80,
           "gre0\000\000\000\000\000\000\000\000\000\000\000\000", 16);
    *(uint8_t*)0x20000c90 = 0;
    *(uint8_t*)0x20000ca0 = 0;
    *(uint16_t*)0x20000cb0 = 0;
    *(uint8_t*)0x20000cb2 = 0;
    *(uint8_t*)0x20000cb3 = 0;
    *(uint8_t*)0x20000cb4 = 0;
    *(uint32_t*)0x20000cb8 = 0;
    *(uint16_t*)0x20000cbc = 0x258;
    *(uint16_t*)0x20000cbe = 0x288;
    *(uint32_t*)0x20000cc0 = 0;
    *(uint64_t*)0x20000cc8 = 0;
    *(uint64_t*)0x20000cd0 = 0;
    *(uint16_t*)0x20000cd8 = 0x58;
    memcpy((void*)0x20000cda,
           "hashlimit\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000cf7 = 1;
    memcpy((void*)0x20000cf8, "pim6reg\000\000\000\000\000\000\000\000\000",
           16);
    *(uint32_t*)0x20000d08 = 0;
    *(uint32_t*)0x20000d0c = 0;
    *(uint32_t*)0x20000d10 = 5;
    *(uint32_t*)0x20000d14 = 0;
    *(uint32_t*)0x20000d18 = 0;
    *(uint32_t*)0x20000d1c = 7;
    *(uint32_t*)0x20000d20 = 0x3ff;
    *(uint8_t*)0x20000d24 = 0;
    *(uint8_t*)0x20000d25 = 0;
    *(uint64_t*)0x20000d28 = 0;
    *(uint16_t*)0x20000d30 = 0x158;
    memcpy((void*)0x20000d32,
           "hashlimit\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000d4f = 3;
    memcpy(
        (void*)0x20000d50,
        "wg1\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\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"
        "\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\000\000\000\000\000\000\000\000\000"
        "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000",
        255);
    *(uint64_t*)0x20000e50 = 3;
    *(uint64_t*)0x20000e58 = 0;
    *(uint32_t*)0x20000e60 = 0x41;
    *(uint32_t*)0x20000e64 = 0;
    *(uint32_t*)0x20000e68 = 0;
    *(uint32_t*)0x20000e6c = 0x1000;
    *(uint32_t*)0x20000e70 = 6;
    *(uint32_t*)0x20000e74 = 3;
    *(uint8_t*)0x20000e78 = 0;
    *(uint8_t*)0x20000e79 = 0;
    *(uint64_t*)0x20000e80 = 0;
    *(uint16_t*)0x20000e88 = 0x30;
    memcpy((void*)0x20000e8a,
           "CONNMARK\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000ea7 = 1;
    *(uint32_t*)0x20000ea8 = 0;
    *(uint32_t*)0x20000eac = 0;
    *(uint32_t*)0x20000eb0 = 0;
    *(uint8_t*)0x20000eb4 = 0;
    memset((void*)0x20000eb8, 0, 136);
    *(uint32_t*)0x20000f40 = 0;
    *(uint16_t*)0x20000f44 = 0xa8;
    *(uint16_t*)0x20000f46 = 0xd0;
    *(uint32_t*)0x20000f48 = 0;
    *(uint64_t*)0x20000f50 = 0;
    *(uint64_t*)0x20000f58 = 0;
    *(uint16_t*)0x20000f60 = 0x28;
    memset((void*)0x20000f62, 0, 29);
    *(uint8_t*)0x20000f7f = 7;
    *(uint32_t*)0x20000f80 = 0xfffffffe;
    syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*opt=*/0x40,
            /*val=*/0x20000b00ul, /*len=*/0x488ul);
    break;
  case 2:
    memcpy((void*)0x20000240, "erspan0\000\000\000\000\000\000\000\000\000",
           16);
    *(uint64_t*)0x20000250 = 0;
    syscall(__NR_ioctl, /*fd=*/-1, /*cmd=*/0x89f3, /*arg=*/0x20000240ul);
    break;
  case 3:
    syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 4:
    memcpy((void*)0x20000000,
           "\x8f\xed\xcb\x79\x07\x00\x98\x75\xf3\x75\x38\xe4\x86\xdd\x63\x17"
           "\xce\x62\x03\xc2\x3c\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x87\x5a"
           "\x65\x96\x9f\xf5\x7b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
           "\x00\x00\xac\x14\x14\xaa\x2c",
           55);
    syscall(__NR_write, /*fd=*/-1, /*buf=*/0x20000000ul, /*len=*/0xfdeful);
    break;
  case 5:
    *(uint32_t*)0x20000140 = 6;
    *(uint32_t*)0x20000144 = 3;
    *(uint64_t*)0x20000148 = 0x20000680;
    memcpy(
        (void*)0x20000680,
        "\x18\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x95",
        17);
    *(uint64_t*)0x20000150 = 0;
    *(uint32_t*)0x20000158 = 0;
    *(uint32_t*)0x2000015c = 0;
    *(uint64_t*)0x20000160 = 0;
    *(uint32_t*)0x20000168 = 0;
    *(uint32_t*)0x2000016c = 0;
    memset((void*)0x20000170, 0, 16);
    *(uint32_t*)0x20000180 = 0;
    *(uint32_t*)0x20000184 = 0x25;
    *(uint32_t*)0x20000188 = -1;
    *(uint32_t*)0x2000018c = 8;
    *(uint64_t*)0x20000190 = 0;
    *(uint32_t*)0x20000198 = 0;
    *(uint32_t*)0x2000019c = 0x10;
    *(uint64_t*)0x200001a0 = 0;
    *(uint32_t*)0x200001a8 = 0;
    *(uint32_t*)0x200001ac = 0;
    *(uint32_t*)0x200001b0 = 0;
    *(uint32_t*)0x200001b4 = 0;
    *(uint64_t*)0x200001b8 = 0;
    *(uint64_t*)0x200001c0 = 0;
    *(uint32_t*)0x200001c8 = 0x10;
    *(uint32_t*)0x200001cc = 0;
    *(uint32_t*)0x200001d0 = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000140ul, /*size=*/0x90ul);
    break;
  case 6:
    *(uint32_t*)0x20000480 = 6;
    *(uint32_t*)0x20000484 = 3;
    *(uint64_t*)0x20000488 = 0x20000680;
    *(uint64_t*)0x20000490 = 0x200002c0;
    memcpy((void*)0x200002c0, "syzkaller\000", 10);
    *(uint32_t*)0x20000498 = 0;
    *(uint32_t*)0x2000049c = 0;
    *(uint64_t*)0x200004a0 = 0;
    *(uint32_t*)0x200004a8 = 0;
    *(uint32_t*)0x200004ac = 0;
    memset((void*)0x200004b0, 0, 16);
    *(uint32_t*)0x200004c0 = 0;
    *(uint32_t*)0x200004c4 = 0x25;
    *(uint32_t*)0x200004c8 = -1;
    *(uint32_t*)0x200004cc = 8;
    *(uint64_t*)0x200004d0 = 0;
    *(uint32_t*)0x200004d8 = 0;
    *(uint32_t*)0x200004dc = 0x10;
    *(uint64_t*)0x200004e0 = 0;
    *(uint32_t*)0x200004e8 = 0;
    *(uint32_t*)0x200004ec = 0;
    *(uint32_t*)0x200004f0 = 0;
    *(uint32_t*)0x200004f4 = 0;
    *(uint64_t*)0x200004f8 = 0;
    *(uint64_t*)0x20000500 = 0;
    *(uint32_t*)0x20000508 = 0x10;
    *(uint32_t*)0x2000050c = 0;
    *(uint32_t*)0x20000510 = 0;
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000480ul, /*size=*/0x90ul);
    if (res != -1)
      r[1] = res;
    break;
  case 7:
    *(uint32_t*)0x20000600 = r[1];
    *(uint32_t*)0x20000604 = 5;
    *(uint32_t*)0x20000608 = 0xb68;
    *(uint32_t*)0x2000060c = 0;
    *(uint64_t*)0x20000610 = 0x20000000;
    memset((void*)0x20000000, 37, 1);
    *(uint64_t*)0x20000618 = 0;
    *(uint32_t*)0x20000620 = 0xd01;
    *(uint32_t*)0x20000624 = 0;
    *(uint32_t*)0x20000628 = 0;
    *(uint32_t*)0x2000062c = 0;
    *(uint64_t*)0x20000630 = 0;
    *(uint64_t*)0x20000638 = 0;
    *(uint32_t*)0x20000640 = 2;
    *(uint32_t*)0x20000644 = 0;
    *(uint32_t*)0x20000648 = 0;
    syscall(__NR_bpf, /*cmd=*/0xaul, /*arg=*/0x20000600ul, /*size=*/0x48ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  if ((reason = setup_802154()))
    printf("the reproducer may not work as expected: 802154 injection setup "
           "failed: %s\n",
           reason);
  loop();
  return 0;
}