[PATCH] kunit: print a message before triggering a NULL dereference

From: Dan Carpenter
Date: Fri Sep 05 2025 - 06:35:22 EST


Print a message so that people reading dmesg know that these NULL
dereferences are not a bug, but instead a deliberate part of
the testing.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
lib/kunit/kunit-test.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/lib/kunit/kunit-test.c b/lib/kunit/kunit-test.c
index 8c01eabd4eaf..a8b6e16f4465 100644
--- a/lib/kunit/kunit-test.c
+++ b/lib/kunit/kunit-test.c
@@ -119,6 +119,8 @@ static void kunit_test_null_dereference(void *data)
struct kunit *test = data;
int *null = NULL;

+ pr_info("Triggering deliberate NULL derefence.\n");
+
*null = 0;

KUNIT_FAIL(test, "This line should never be reached\n");
--
2.47.2