path: root/lib/Kconfig.kasan
diff options
authorPatricia Alfonso <>2020-10-13 16:55:06 -0700
committerLinus Torvalds <>2020-10-13 18:38:32 -0700
commit73228c7ecc5e40c0851c4703c5ec6ed38123e989 (patch)
tree2741051bf644b501f2c8ba39ebaa975f3b2c7b20 /lib/Kconfig.kasan
parent83c4e7a0363bdb8104f510370907161623e31086 (diff)
KASAN: port KASAN Tests to KUnit
Transfer all previous tests for KASAN to KUnit so they can be run more easily. Using kunit_tool, developers can run these tests with their other KUnit tests and see "pass" or "fail" with the appropriate KASAN report instead of needing to parse each KASAN report to test KASAN functionalities. All KASAN reports are still printed to dmesg. Stack tests do not work properly when KASAN_STACK is enabled so those tests use a check for "if IS_ENABLED(CONFIG_KASAN_STACK)" so they only run if stack instrumentation is enabled. If KASAN_STACK is not enabled, KUnit will print a statement to let the user know this test was not run with KASAN_STACK enabled. copy_user_test and kasan_rcu_uaf cannot be run in KUnit so there is a separate test file for those tests, which can be run as before as a module. [ v14] Link: Signed-off-by: Patricia Alfonso <> Signed-off-by: David Gow <> Signed-off-by: Andrew Morton <> Tested-by: Andrey Konovalov <> Reviewed-by: Brendan Higgins <> Reviewed-by: Andrey Konovalov <> Reviewed-by: Dmitry Vyukov <> Cc: Andrey Ryabinin <> Cc: Ingo Molnar <> Cc: Juri Lelli <> Cc: Peter Zijlstra <> Cc: Shuah Khan <> Cc: Vincent Guittot <> Link: Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'lib/Kconfig.kasan')
1 files changed, 17 insertions, 5 deletions
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 033a5bc67ac4..542a9c18398e 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -166,12 +166,24 @@ config KASAN_VMALLOC
for KASAN to detect more sorts of errors (and to support vmapped
stacks), but at the cost of higher memory usage.
-config TEST_KASAN
- tristate "Module for testing KASAN for bug detection"
- depends on m
+ tristate "KUnit-compatible tests of KASAN bug detection capabilities" if !KUNIT_ALL_TESTS
+ depends on KASAN && KUNIT
- This is a test module doing various nasty things like
- out of bounds accesses, use after free. It is useful for testing
+ This is a KUnit test suite doing various nasty things like
+ out of bounds and use after free accesses. It is useful for testing
kernel debugging features like KASAN.
+ For more information on KUnit and unit tests in general, please refer
+ to the KUnit documentation in Documentation/dev-tools/kunit
+ tristate "KUnit-incompatible tests of KASAN bug detection capabilities"
+ depends on m && KASAN
+ help
+ This is a part of the KASAN test suite that is incompatible with
+ KUnit. Currently includes tests that do bad copy_from/to_user
+ accesses.
endif # KASAN