C中的空闲内存问题删除了链表中的某些值

#include <stdio.h>
#include <stdlib.h>

// 定义链表节点结构
typedef struct Node {
    int data;
    struct Node* next;
} Node;

// 删除链表中的某些值
void deleteValues(Node** head, int value) {
    Node* current = *head;
    Node* prev = NULL;

    while (current != NULL) {
        if (current->data == value) {
            if (prev == NULL) {
                // 如果需要删除的节点是头节点
                *head = current->next;
            } else {
                // 如果需要删除的节点不是头节点
                prev->next = current->next;
            }
            Node* temp = current;
            current = current->next;
            free(temp); // 释放节点内存
        } else {
            prev = current;
            current = current->next;
        }
    }
}

// 打印链表
void printList(Node* head) {
    Node* current = head;
    while (current != NULL) {
        printf("%d ", current->data);
        current = current->next;
    }
    printf("\n");
}

int main() {
    // 创建链表
    Node* head = (Node*)malloc(sizeof(Node));
    Node* second = (Node*)malloc(sizeof(Node));
    Node* third = (Node*)malloc(sizeof(Node));

    head->data = 1;
    head->next = second;
    second->data = 2;
    second->next = third;
    third->data = 3;
    third->next = NULL;

    printf("原始链表：");
    printList(head);

    int valueToDelete = 2;
    deleteValues(&head, valueToDelete);

    printf("删除值为 %d 后的链表：", valueToDelete);
    printList(head);

    // 释放链表内存
    Node* current = head;
    while (current != NULL) {
        Node* temp = current;
        current = current->next;
        free(temp);
    }

    return 0;
}