Based on the provided code slice and the specified vulnerability types (CWE-416: Use After Free and CWE-787: Out-of-bounds Write) between lines 37 and 44, I'll provide five possible patches to address the potential vulnerabilities:

Patch 1: Add bounds checking before memcpy
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		if (build_lbl_len <= skb->len - sizeof(struct edl_event_hdr) - 1) {
38 			memcpy(build_label, edl->data + 1, build_lbl_len);
39 			*(build_label + build_lbl_len) = '\0';
40 		} else {
41 			bt_dev_err(hdev, "Invalid build label length");
42 			err = -EINVAL;
43 			goto out;
44 		}
45 	}
```

Patch 2: Use strlcpy instead of memcpy
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		strlcpy(build_label, (char *)(edl->data + 1), min(build_lbl_len + 1, QCA_FW_BUILD_VER_LEN));
38 	}
```

Patch 3: Copy data before freeing skb
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		memcpy(build_label, edl->data + 1, build_lbl_len);
38 		*(build_label + build_lbl_len) = '\0';
39 	}
40 
41 	hci_set_fw_info(hdev, "%s", build_label);
42 
43 	kfree_skb(skb);
44 	return err;
```

Patch 4: Use skb_copy_bits to safely copy data
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		if (skb_copy_bits(skb, sizeof(struct edl_event_hdr) + 1, build_label, build_lbl_len) == 0) {
38 			*(build_label + build_lbl_len) = '\0';
39 		} else {
40 			bt_dev_err(hdev, "Failed to copy build label");
41 			err = -EINVAL;
42 			goto out;
43 		}
44 	}
```

Patch 5: Use a temporary buffer and validate before copying
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		char temp_label[QCA_FW_BUILD_VER_LEN];
38 		if (skb_copy_bits(skb, sizeof(struct edl_event_hdr) + 1, temp_label, build_lbl_len) == 0) {
39 			memcpy(build_label, temp_label, build_lbl_len);
40 			*(build_label + build_lbl_len) = '\0';
41 		} else {
42 			bt_dev_err(hdev, "Failed to copy build label");
43 			err = -EINVAL;
44 			goto out;
45 		}
46 	}
```

These patches aim to address potential buffer overflow issues and use-after-free vulnerabilities by adding additional checks, using safer functions, or changing the order of operations.