


Q: Given the following code slice:
```
CWE-787___CVE-2024-36946.c___1-21___6.c_vul.c
1 void rtm_phonet_notify(int event, struct net_device *dev, u8 dst)
3 	struct sk_buff *skb;
6 	skb = nlmsg_new(NLMSG_ALIGN(sizeof(struct ifaddrmsg)) +

```
which has a vulnerability among CWE-787 and among lines:
```
6 	skb = nlmsg_new(NLMSG_ALIGN(sizeof(struct ifaddrmsg)) +
```
Please generate five possible patches for the vulnerability.
A: The patch can be done in two steps.
Step 1. 