The patch titled
Subject: kasan: don't run tests when KASAN is not enabled
has been added to the -mm tree. Its filename is
kasan-dont-run-tests-when-kasan-is-not-enabled.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kasan-dont-run-tests-when-kasan-is-not-enabled.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kasan-dont-run-tests-when-kasan-is-not-enabled.patch
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------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: kasan: don't run tests when KASAN is not enabled
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
Link: https://lkml.kernel.org/r/25bd4fb5cae7b421d806a1f33fb633edd313f0c7.1610733117.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Reviewed-by: Marco Elver <elver@xxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Branislav Rankov <Branislav.Rankov@xxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Evgenii Stepanov <eugenis@xxxxxxxxxx>
Cc: Kevin Brodsky <kevin.brodsky@xxxxxxx>
Cc: Peter Collingbourne <pcc@xxxxxxxxxx>
Cc: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/test_kasan.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/lib/test_kasan.c~kasan-dont-run-tests-when-kasan-is-not-enabled
+++ a/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;
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
kasan-fix-hw_tags-boot-parameters.patch
kasan-prefix-global-functions-with-kasan_.patch
kasan-clarify-hw_tags-impact-on-tbi.patch
kasan-clean-up-comments-in-tests.patch
kasan-add-macros-to-simplify-checking-test-constraints.patch
kasan-add-match-all-tag-tests.patch
kasan-arm64-allow-using-kunit-tests-with-hw_tags-mode.patch
kasan-rename-config_test_kasan_module.patch
kasan-add-compiler-barriers-to-kunit_expect_kasan_fail.patch
kasan-adapt-kmalloc_uaf2-test-to-hw_tags-mode.patch
kasan-fix-memory-corruption-in-kasan_bitops_tags-test.patch
kasan-move-_ret_ip_-to-inline-wrappers.patch
kasan-fix-bug-detection-via-ksize-for-hw_tags-mode.patch
kasan-add-proper-page-allocator-tests.patch
kasan-add-a-test-for-kmem_cache_alloc-free_bulk.patch
kasan-dont-run-tests-when-kasan-is-not-enabled.patch
