From c4510ef554ef4441f5fdd654536b7805c2f1057a Mon Sep 17 00:00:00 2001
From: gaoyang3513 <gaoyang3513@163.com>
Date: Mon, 14 Oct 2024 15:53:47 +0800
Subject: [PATCH] =?UTF-8?q?[Add]=20=E6=96=B0=E5=A2=9E=E2=80=9C=E5=86=85?=
 =?UTF-8?q?=E5=AD=98=E8=AE=BF=E9=97=AE=E8=B6=8A=E7=95=8C=E2=80=9D=E5=AF=BC?=
 =?UTF-8?q?=E8=87=B4=E5=86=85=E6=A0=B8=E6=8A=A5=E9=94=99=EF=BC=9ASegmentat?=
 =?UTF-8?q?ion=20fault?=
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---
 01-Debug/01-Panic/test_ps.c | 27 +++++++++++++++++++++++++++
 Makefile                    |  2 +-
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/01-Debug/01-Panic/test_ps.c b/01-Debug/01-Panic/test_ps.c
index b70c4c948..e016bba68 100644
--- a/01-Debug/01-Panic/test_ps.c
+++ b/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。
 }
diff --git a/Makefile b/Makefile
index 3d4b7d55a..ca710d2dd 100644
--- a/Makefile
+++ b/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