[Add] 新增“内存访问越界”导致内核报错：Segmentation fault

01-Debug/01-Panic/test_ps.c

@@ -20,6 +20,31 @@ static int trigger_oops(void)
     return 0;
 }
 
+static int trigger_oob(void) {
+    char *buffer;
+    int *out_of_bounds;
+
+    printk(KERN_INFO "Out-of-bounds memory access test module loaded\n");
+
+    // Allocate a small buffer
+//    buffer = kmalloc(256, GFP_KERNEL);
+    buffer = vmalloc(PAGE_SIZE * 2);
+    if (!buffer) {
+        printk(KERN_ERR "Failed to allocate memory\n");
+        return -ENOMEM;
+    }
+
+    // Attempt to access memory out of bounds
+    out_of_bounds = (int *)(buffer + PAGE_SIZE * 3); // Move pointer to the end of the buffer
+    *out_of_bounds = 0; // This should cause an out-of-bounds write
+
+    printk(KERN_INFO "Out-of-bounds Ofst[%lu] memory access performed\n", 256 + PAGE_SIZE);
+
+    kfree(buffer);
+
+    return 0;
+}
+
 static int trigger_oom(void)
 {
     void *memory = NULL;
@@ -122,6 +147,8 @@ static int trigger_init(void) {
         trigger_rcu();
     else if (test_type == 3)
         trigger_deadlock();
+    else if (test_type == 4)
+        trigger_oob();
 
     return 0;           // 加载模块不应该有返回值，但这里返回0避免编译警告。
 }

Makefile

@@ -24,7 +24,7 @@ INSTALL_DIR  ?= $(LOCAL_DIR)/__install
 #*******************************************************************************
 MULTI_CORES ?= $(shell grep -c ^processor /proc/cpuinfo)
 
-SUB_DIRS := 01-Debug/
+SUB_DIRS := spi 01-Debug
 
 #*******************************************************************************
 # Compile configure