1 files changed, 22 insertions, 0 deletions

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index ef1a3ac1397e..2724f86c4cef 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -472,6 +472,26 @@ static noinline void __init use_after_scope_test(void)
         p[1023] = 1;
 }
 
+static noinline void __init kasan_alloca_oob_left(void)
+{
+        volatile int i = 10;
+        char alloca_array[i];
+        char *p = alloca_array - 1;
+
+        pr_info("out-of-bounds to left on alloca\n");
+        *(volatile char *)p;
+}
+
+static noinline void __init kasan_alloca_oob_right(void)
+{
+        volatile int i = 10;
+        char alloca_array[i];
+        char *p = alloca_array + i;
+
+        pr_info("out-of-bounds to right on alloca\n");
+        *(volatile char *)p;
+}
+
 static int __init kmalloc_tests_init(void)
 {
         /*
@@ -502,6 +522,8 @@ static int __init kmalloc_tests_init(void)
         memcg_accounted_kmem_cache();
         kasan_stack_oob();
         kasan_global_oob();
+        kasan_alloca_oob_left();
+        kasan_alloca_oob_right();
         ksize_unpoisons_memory();
         copy_user_test();
         use_after_scope_test();