[v4,15/15] kasan: don't run tests when KASAN is not enabled
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Message ID 25bd4fb5cae7b421d806a1f33fb633edd313f0c7.1610733117.git.andreyknvl@google.com
State In Next
Commit 3451d01e3d4a54c164c688456aae6c276445f078
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Series
  • kasan: HW_TAGS tests support and fixes
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Commit Message

Andrey Konovalov Jan. 15, 2021, 5:52 p.m. UTC
Don't run KASAN tests when it's disabled with kasan.mode=off to avoid
corrupting kernel memory.

Link: https://linux-review.googlesource.com/id/I6447af436a69a94bfc35477f6bf4e2122948355e
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch
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diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 4ba7461210fd..d16ec9e66806 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -47,6 +47,11 @@  static bool multishot;
  */
 static int kasan_test_init(struct kunit *test)
 {
+	if (!kasan_enabled()) {
+		kunit_err(test, "can't run KASAN tests with KASAN disabled");
+		return -1;
+	}
+
 	multishot = kasan_save_enable_multi_shot();
 	hw_set_tagging_report_once(false);
 	return 0;