// https://syzkaller.appspot.com/bug?id=dc6352b92862eb79373fe03fdf9af5928753e057
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.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/netlink.h>

static long syz_genetlink_get_family_id(volatile long name)
{
  char buf[512] = {0};
  struct nlmsghdr* hdr = (struct nlmsghdr*)buf;
  struct genlmsghdr* genlhdr = (struct genlmsghdr*)NLMSG_DATA(hdr);
  struct nlattr* attr = (struct nlattr*)(genlhdr + 1);
  hdr->nlmsg_len =
      sizeof(*hdr) + sizeof(*genlhdr) + sizeof(*attr) + GENL_NAMSIZ;
  hdr->nlmsg_type = GENL_ID_CTRL;
  hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
  genlhdr->cmd = CTRL_CMD_GETFAMILY;
  attr->nla_type = CTRL_ATTR_FAMILY_NAME;
  attr->nla_len = sizeof(*attr) + GENL_NAMSIZ;
  strncpy((char*)(attr + 1), (char*)name, GENL_NAMSIZ);
  struct iovec iov = {hdr, hdr->nlmsg_len};
  struct sockaddr_nl addr = {0};
  addr.nl_family = AF_NETLINK;
  int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (fd == -1) {
    return -1;
  }
  struct msghdr msg = {&addr, sizeof(addr), &iov, 1, NULL, 0, 0};
  if (sendmsg(fd, &msg, 0) == -1) {
    close(fd);
    return -1;
  }
  ssize_t n = recv(fd, buf, sizeof(buf), 0);
  close(fd);
  if (n <= 0) {
    return -1;
  }
  if (hdr->nlmsg_type != GENL_ID_CTRL) {
    return -1;
  }
  for (; (char*)attr < buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID)
      return *(uint16_t*)(attr + 1);
  }
  return -1;
}

uint64_t r[2] = {0xffffffffffffffff, 0x0};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  res = syscall(__NR_socket, 0x10, 3, 0x10);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000640, "TIPCv2\000", 7);
  res = syz_genetlink_get_family_id(0x20000640);
  if (res != -1)
    r[1] = res;
  *(uint64_t*)0x20000000 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint64_t*)0x20000010 = 0x200000c0;
  *(uint64_t*)0x200000c0 = 0x20000100;
  *(uint32_t*)0x20000100 = 0x6c;
  *(uint16_t*)0x20000104 = r[1];
  *(uint16_t*)0x20000106 = 1;
  *(uint32_t*)0x20000108 = 0;
  *(uint32_t*)0x2000010c = 0;
  *(uint8_t*)0x20000110 = 3;
  *(uint8_t*)0x20000111 = 0;
  *(uint16_t*)0x20000112 = 0;
  *(uint16_t*)0x20000114 = 0x58;
  *(uint16_t*)0x20000116 = 1;
  *(uint16_t*)0x20000118 = 0x10;
  *(uint16_t*)0x2000011a = 1;
  memcpy((void*)0x2000011c, "udp:syz0\000", 9);
  *(uint16_t*)0x20000128 = 0x44;
  *(uint16_t*)0x2000012a = 4;
  *(uint16_t*)0x2000012c = 0x20;
  *(uint16_t*)0x2000012e = 1;
  *(uint16_t*)0x20000130 = 0xa;
  *(uint16_t*)0x20000132 = htobe16(0);
  *(uint32_t*)0x20000134 = htobe32(0);
  *(uint8_t*)0x20000138 = -1;
  *(uint8_t*)0x20000139 = 3;
  *(uint8_t*)0x2000013a = 0;
  *(uint8_t*)0x2000013b = 0;
  *(uint8_t*)0x2000013c = 0;
  *(uint8_t*)0x2000013d = 0;
  *(uint8_t*)0x2000013e = 0;
  *(uint8_t*)0x2000013f = 0;
  *(uint8_t*)0x20000140 = 0;
  *(uint8_t*)0x20000141 = 0;
  *(uint8_t*)0x20000142 = 0;
  *(uint8_t*)0x20000143 = 0;
  *(uint8_t*)0x20000144 = 0;
  *(uint8_t*)0x20000145 = 0;
  *(uint8_t*)0x20000146 = 0;
  *(uint8_t*)0x20000147 = 1;
  *(uint32_t*)0x20000148 = 0;
  *(uint16_t*)0x2000014c = 0x20;
  *(uint16_t*)0x2000014e = 2;
  *(uint16_t*)0x20000150 = 0xa;
  *(uint16_t*)0x20000152 = htobe16(0);
  *(uint32_t*)0x20000154 = htobe32(0);
  *(uint8_t*)0x20000158 = -1;
  *(uint8_t*)0x20000159 = 1;
  *(uint8_t*)0x2000015a = 0;
  *(uint8_t*)0x2000015b = 0;
  *(uint8_t*)0x2000015c = 0;
  *(uint8_t*)0x2000015d = 0;
  *(uint8_t*)0x2000015e = 0;
  *(uint8_t*)0x2000015f = 0;
  *(uint8_t*)0x20000160 = 0;
  *(uint8_t*)0x20000161 = 0;
  *(uint8_t*)0x20000162 = 0;
  *(uint8_t*)0x20000163 = 0;
  *(uint8_t*)0x20000164 = 0;
  *(uint8_t*)0x20000165 = 0;
  *(uint8_t*)0x20000166 = 0;
  *(uint8_t*)0x20000167 = 1;
  *(uint32_t*)0x20000168 = 0;
  *(uint64_t*)0x200000c8 = 0x6c;
  *(uint64_t*)0x20000018 = 1;
  *(uint64_t*)0x20000020 = 0;
  *(uint64_t*)0x20000028 = 0;
  *(uint32_t*)0x20000030 = 0;
  syscall(__NR_sendmsg, r[0], 0x20000000, 0);
  return 0;
}