Thank you for providing the code snippet and identifying the vulnerability. The issue appears to be a potential buffer overflow (CWE-125) in the memcpy operation on line 37. Here are five possible patches to address this vulnerability:

Patch 1: Add a bounds check before the memcpy operation
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		build_lbl_len = min_t(int, build_lbl_len, QCA_FW_BUILD_VER_LEN - 1);
38 		memcpy(build_label, edl->data + 1, build_lbl_len);
39 		*(build_label + build_lbl_len) = '\0';
40 	}
```

Patch 2: Use strncpy instead of memcpy
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		strncpy(build_label, edl->data + 1, QCA_FW_BUILD_VER_LEN - 1);
38 		build_label[QCA_FW_BUILD_VER_LEN - 1] = '\0';
39 	}
```

Patch 3: Use strlcpy for safer string copying
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		strlcpy(build_label, edl->data + 1, QCA_FW_BUILD_VER_LEN);
38 	}
```

Patch 4: Implement a custom safe_memcpy function
```
static inline void safe_memcpy(void *dest, const void *src, size_t n, size_t dest_size) {
    size_t safe_n = (n < dest_size) ? n : dest_size;
    memcpy(dest, src, safe_n);
}

// In the main function:
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		safe_memcpy(build_label, edl->data + 1, build_lbl_len, QCA_FW_BUILD_VER_LEN - 1);
38 		*(build_label + min_t(int, build_lbl_len, QCA_FW_BUILD_VER_LEN - 1)) = '\0';
39 	}
```

Patch 5: Use snprintf for formatting and bounds checking
```
36 	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
37 		snprintf(build_label, QCA_FW_BUILD_VER_LEN, "%.*s", build_lbl_len, edl->data + 1);
38 	}
```

Each of these patches aims to prevent buffer overflow by ensuring that the copy operation does not exceed the bounds of the destination buffer. The choice of patch depends on the specific requirements and coding standards of the project.