// https://syzkaller.appspot.com/bug?id=1108a8ef04002c926deaf3f231d7be6f3bec5ac7
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <net/if.h>
#include <netinet/in.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

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

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

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

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

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

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

const int kInitNetNsFd = 239;

static long syz_init_net_socket(volatile long domain, volatile long type,
                                volatile long proto)
{
  return syscall(__NR_socket, domain, type, proto);
}

static long syz_genetlink_get_family_id(volatile long name,
                                        volatile long sock_arg)
{
  bool dofail = false;
  int fd = sock_arg;
  if (fd < 0) {
    dofail = true;
    fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
    if (fd == -1) {
      return -1;
    }
  }
  struct nlmsg nlmsg_tmp;
  int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, dofail);
  if ((int)sock_arg < 0)
    close(fd);
  if (ret < 0) {
    return -1;
  }
  return ret;
}

uint64_t r[6] = {0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0,
                 0xffffffffffffffff, 0x0};

int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  intptr_t res = 0;
  res = -1;
  res = syz_init_net_socket(0x10, 3, 0x10);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000180, "nl802154\000", 9);
  res = -1;
  res = syz_genetlink_get_family_id(0x20000180, -1);
  if (res != -1)
    r[1] = res;
  *(uint64_t*)0x20000800 = 0;
  *(uint32_t*)0x20000808 = 0;
  *(uint64_t*)0x20000810 = 0x200007c0;
  *(uint64_t*)0x200007c0 = 0x20000740;
  *(uint32_t*)0x20000740 = 0x54;
  *(uint16_t*)0x20000744 = r[1];
  *(uint16_t*)0x20000746 = 1;
  *(uint32_t*)0x20000748 = 0x70bd2a;
  *(uint32_t*)0x2000074c = 0x25dfdbfb;
  *(uint8_t*)0x20000750 = 7;
  *(uint8_t*)0x20000751 = 0;
  *(uint16_t*)0x20000752 = 0;
  *(uint16_t*)0x20000754 = 0xc;
  *(uint16_t*)0x20000756 = 0x17;
  *(uint64_t*)0x20000758 = 0;
  *(uint16_t*)0x20000760 = 8;
  *(uint16_t*)0x20000762 = 1;
  *(uint32_t*)0x20000764 = 3;
  *(uint16_t*)0x20000768 = 0xa;
  *(uint16_t*)0x2000076a = 4;
  memcpy((void*)0x2000076c, "wpan4\000", 6);
  *(uint16_t*)0x20000774 = 8;
  *(uint16_t*)0x20000776 = 1;
  *(uint32_t*)0x20000778 = 0;
  *(uint16_t*)0x2000077c = 8;
  *(uint16_t*)0x2000077e = 1;
  *(uint32_t*)0x20000780 = 2;
  *(uint16_t*)0x20000784 = 8;
  *(uint16_t*)0x20000786 = 3;
  *(uint32_t*)0x20000788 = 0;
  *(uint16_t*)0x2000078c = 8;
  *(uint16_t*)0x2000078e = 5;
  *(uint32_t*)0x20000790 = 1;
  *(uint64_t*)0x200007c8 = 0x54;
  *(uint64_t*)0x20000818 = 1;
  *(uint64_t*)0x20000820 = 0;
  *(uint64_t*)0x20000828 = 0;
  *(uint32_t*)0x20000830 = 0x14;
  syscall(__NR_sendmsg, r[0], 0x20000800ul, 0x800ul);
  res = -1;
  res = syz_init_net_socket(0x10, 3, 0x10);
  if (res != -1)
    r[2] = res;
  memcpy((void*)0x20000040, "nl802154\000", 9);
  res = -1;
  res = syz_genetlink_get_family_id(0x20000040, -1);
  if (res != -1)
    r[3] = res;
  res = -1;
  res = syz_init_net_socket(0x10, 3, 0x10);
  if (res != -1)
    r[4] = res;
  memcpy((void*)0x200002c0, "wpan4\000\000\000\000\000\000\000\000\000\000\000",
         16);
  res = syscall(__NR_ioctl, r[2], 0x8933, 0x200002c0ul);
  if (res != -1)
    r[5] = *(uint32_t*)0x200002d0;
  *(uint64_t*)0x20000640 = 0;
  *(uint32_t*)0x20000648 = 0;
  *(uint64_t*)0x20000650 = 0x20000600;
  *(uint64_t*)0x20000600 = 0x20000300;
  *(uint32_t*)0x20000300 = 0x198;
  *(uint16_t*)0x20000304 = r[3];
  *(uint16_t*)0x20000306 = 1;
  *(uint32_t*)0x20000308 = 0;
  *(uint32_t*)0x2000030c = 0;
  *(uint8_t*)0x20000310 = 0x17;
  *(uint8_t*)0x20000311 = 0;
  *(uint16_t*)0x20000312 = 0;
  *(uint16_t*)0x20000314 = 8;
  *(uint16_t*)0x20000316 = 3;
  *(uint32_t*)0x20000318 = r[5];
  *(uint16_t*)0x2000031c = 0x4c;
  STORE_BY_BITMASK(uint16_t, , 0x2000031e, 0x25, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000031f, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000031f, 1, 7, 1);
  *(uint16_t*)0x20000320 = 0x24;
  *(uint16_t*)0x20000322 = 3;
  memcpy((void*)0x20000324,
         "\x00\x50\x78\xfd\xc3\x94\xf6\xcc\xfc\x65\x4f\xc3\xd3\x42\xd7\x8a\x5b"
         "\x6e\xe8\xb7\x87\x1c\x52\x1d\x77\xa0\xcd\x0d\xbf\x92\xc9\x4c",
         32);
  *(uint16_t*)0x20000344 = 5;
  *(uint16_t*)0x20000346 = 2;
  *(uint8_t*)0x20000348 = 0x81;
  *(uint16_t*)0x2000034c = 0x14;
  *(uint16_t*)0x2000034e = 4;
  memcpy((void*)0x20000350,
         "\xe2\x1f\x3e\x3d\x8b\x37\x73\x4b\x26\xc9\x8f\x00\x1c\x84\x02\x72",
         16);
  *(uint16_t*)0x20000360 = 5;
  *(uint16_t*)0x20000362 = 2;
  *(uint8_t*)0x20000364 = 1;
  *(uint16_t*)0x20000368 = 0xc0;
  STORE_BY_BITMASK(uint16_t, , 0x2000036a, 0x25, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000036b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000036b, 1, 7, 1);
  *(uint16_t*)0x2000036c = 0x18;
  STORE_BY_BITMASK(uint16_t, , 0x2000036e, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000036f, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000036f, 1, 7, 1);
  *(uint16_t*)0x20000370 = 0x14;
  STORE_BY_BITMASK(uint16_t, , 0x20000372, 3, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000373, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000373, 1, 7, 1);
  *(uint16_t*)0x20000374 = 6;
  *(uint16_t*)0x20000376 = 3;
  *(uint16_t*)0x20000378 = 0xaaa2;
  *(uint16_t*)0x2000037c = 6;
  *(uint16_t*)0x2000037e = 1;
  *(uint16_t*)0x20000380 = -1;
  *(uint16_t*)0x20000384 = 0x14;
  *(uint16_t*)0x20000386 = 4;
  memcpy((void*)0x20000388,
         "\xe1\xb9\xe6\xfe\x0a\xc3\x55\x09\x93\xe6\x23\xa6\x88\x39\x57\x38",
         16);
  *(uint16_t*)0x20000398 = 0x14;
  *(uint16_t*)0x2000039a = 4;
  memcpy((void*)0x2000039c,
         "\x99\xe4\x31\x8c\xb1\x0e\x6b\x2b\x84\x7b\x65\x34\x2f\x83\xe9\x94",
         16);
  *(uint16_t*)0x200003ac = 0x24;
  *(uint16_t*)0x200003ae = 3;
  memcpy((void*)0x200003b0,
         "\x50\x55\x55\xaa\xb7\x2a\x56\x1f\xc1\xd9\x98\x5e\xc4\xd7\x1c\x3d\xd3"
         "\x4b\x5c\xee\xbd\xcf\x92\x4e\x4f\x72\x89\x5a\xfd\xa8\x3e\x31",
         32);
  *(uint16_t*)0x200003d0 = 0x58;
  STORE_BY_BITMASK(uint16_t, , 0x200003d2, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003d3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003d3, 1, 7, 1);
  *(uint16_t*)0x200003d4 = 5;
  *(uint16_t*)0x200003d6 = 2;
  *(uint8_t*)0x200003d8 = 3;
  *(uint16_t*)0x200003dc = 0xc;
  *(uint16_t*)0x200003de = 5;
  *(uint64_t*)0x200003e0 = 0xfffffffffffff5e0;
  *(uint16_t*)0x200003e8 = 0xc;
  *(uint16_t*)0x200003ea = 5;
  *(uint64_t*)0x200003ec = 2;
  *(uint16_t*)0x200003f4 = 0xc;
  *(uint16_t*)0x200003f6 = 5;
  *(uint64_t*)0x200003f8 = 3;
  *(uint16_t*)0x20000400 = 5;
  *(uint16_t*)0x20000402 = 2;
  *(uint8_t*)0x20000404 = 0;
  *(uint16_t*)0x20000408 = 0xc;
  *(uint16_t*)0x2000040a = 5;
  *(uint64_t*)0x2000040c = 0x4c7ad8ef;
  *(uint16_t*)0x20000414 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x20000416, 3, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000417, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000417, 1, 7, 1);
  *(uint16_t*)0x20000418 = 6;
  *(uint16_t*)0x2000041a = 1;
  *(uint16_t*)0x2000041c = 1;
  *(uint16_t*)0x20000420 = 5;
  *(uint16_t*)0x20000422 = 2;
  *(uint8_t*)0x20000424 = 2;
  *(uint16_t*)0x20000428 = 0x70;
  STORE_BY_BITMASK(uint16_t, , 0x2000042a, 0x25, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000042b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000042b, 1, 7, 1);
  *(uint16_t*)0x2000042c = 0x50;
  STORE_BY_BITMASK(uint16_t, , 0x2000042e, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000042f, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000042f, 1, 7, 1);
  *(uint16_t*)0x20000430 = 0xc;
  *(uint16_t*)0x20000432 = 5;
  *(uint64_t*)0x20000434 = 0x8001;
  *(uint16_t*)0x2000043c = 8;
  *(uint16_t*)0x2000043e = 4;
  *(uint32_t*)0x20000440 = 0x100;
  *(uint16_t*)0x20000444 = 8;
  *(uint16_t*)0x20000446 = 4;
  *(uint32_t*)0x20000448 = 3;
  *(uint16_t*)0x2000044c = 5;
  *(uint16_t*)0x2000044e = 2;
  *(uint8_t*)0x20000450 = 1;
  *(uint16_t*)0x20000454 = 8;
  *(uint16_t*)0x20000456 = 4;
  *(uint32_t*)0x20000458 = 0x101;
  *(uint16_t*)0x2000045c = 8;
  *(uint16_t*)0x2000045e = 1;
  *(uint32_t*)0x20000460 = 2;
  *(uint16_t*)0x20000464 = 8;
  *(uint16_t*)0x20000466 = 1;
  *(uint32_t*)0x20000468 = 2;
  *(uint16_t*)0x2000046c = 8;
  *(uint16_t*)0x2000046e = 4;
  *(uint32_t*)0x20000470 = 6;
  *(uint16_t*)0x20000474 = 8;
  *(uint16_t*)0x20000476 = 4;
  *(uint32_t*)0x20000478 = 0xfff;
  *(uint16_t*)0x2000047c = 5;
  *(uint16_t*)0x2000047e = 2;
  *(uint8_t*)0x20000480 = 0;
  *(uint16_t*)0x20000484 = 0x14;
  *(uint16_t*)0x20000486 = 4;
  memcpy((void*)0x20000488,
         "\xcc\x68\xf8\xe4\xeb\x2c\x81\x1a\x7b\x41\x6d\xbd\xec\xa3\x88\x6d",
         16);
  *(uint64_t*)0x20000608 = 0x198;
  *(uint64_t*)0x20000658 = 1;
  *(uint64_t*)0x20000660 = 0;
  *(uint64_t*)0x20000668 = 0;
  *(uint32_t*)0x20000670 = 0x40840;
  syscall(__NR_sendmsg, r[4], 0x20000640ul, 0x8000ul);
  return 0;
}