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-rw-r--r--lib/test_kasan.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index c1efb1b61017..c32f3b0048dc 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -138,6 +138,71 @@ static noinline void __init kmalloc_oob_16(void)
kfree(ptr2);
}
+static noinline void __init kmalloc_oob_memset_2(void)
+{
+ char *ptr;
+ size_t size = 8;
+
+ pr_info("out-of-bounds in memset2\n");
+ ptr = kmalloc(size, GFP_KERNEL);
+ if (!ptr) {
+ pr_err("Allocation failed\n");
+ return;
+ }
+
+ memset(ptr+7, 0, 2);
+ kfree(ptr);
+}
+
+static noinline void __init kmalloc_oob_memset_4(void)
+{
+ char *ptr;
+ size_t size = 8;
+
+ pr_info("out-of-bounds in memset4\n");
+ ptr = kmalloc(size, GFP_KERNEL);
+ if (!ptr) {
+ pr_err("Allocation failed\n");
+ return;
+ }
+
+ memset(ptr+5, 0, 4);
+ kfree(ptr);
+}
+
+
+static noinline void __init kmalloc_oob_memset_8(void)
+{
+ char *ptr;
+ size_t size = 8;
+
+ pr_info("out-of-bounds in memset8\n");
+ ptr = kmalloc(size, GFP_KERNEL);
+ if (!ptr) {
+ pr_err("Allocation failed\n");
+ return;
+ }
+
+ memset(ptr+1, 0, 8);
+ kfree(ptr);
+}
+
+static noinline void __init kmalloc_oob_memset_16(void)
+{
+ char *ptr;
+ size_t size = 16;
+
+ pr_info("out-of-bounds in memset16\n");
+ ptr = kmalloc(size, GFP_KERNEL);
+ if (!ptr) {
+ pr_err("Allocation failed\n");
+ return;
+ }
+
+ memset(ptr+1, 0, 16);
+ kfree(ptr);
+}
+
static noinline void __init kmalloc_oob_in_memset(void)
{
char *ptr;
@@ -264,6 +329,10 @@ static int __init kmalloc_tests_init(void)
kmalloc_oob_krealloc_less();
kmalloc_oob_16();
kmalloc_oob_in_memset();
+ kmalloc_oob_memset_2();
+ kmalloc_oob_memset_4();
+ kmalloc_oob_memset_8();
+ kmalloc_oob_memset_16();
kmalloc_uaf();
kmalloc_uaf_memset();
kmalloc_uaf2();