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-rw-r--r--lib/test_kasan.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index d85f25c65b0a..b63b367a94e8 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -693,6 +693,22 @@ static noinline void __init kasan_bitops(void)
kfree(bits);
}
+static noinline void __init kmalloc_double_kzfree(void)
+{
+ char *ptr;
+ size_t size = 16;
+
+ pr_info("double-free (kzfree)\n");
+ ptr = kmalloc(size, GFP_KERNEL);
+ if (!ptr) {
+ pr_err("Allocation failed\n");
+ return;
+ }
+
+ kzfree(ptr);
+ kzfree(ptr);
+}
+
static int __init kmalloc_tests_init(void)
{
/*
@@ -735,6 +751,7 @@ static int __init kmalloc_tests_init(void)
kasan_memcmp();
kasan_strings();
kasan_bitops();
+ kmalloc_double_kzfree();
kasan_restore_multi_shot(multishot);