Re: [PATCH v6 3/4] kunit: Taint the kernel when KUnit tests are run

From: Shuah Khan
Date: Fri Jul 08 2022 - 16:22:27 EST


On 7/7/22 10:48 PM, David Gow wrote:
Make KUnit trigger the new TAINT_TEST taint when any KUnit test is run.
Due to KUnit tests not being intended to run on production systems, and
potentially causing problems (or security issues like leaking kernel
addresses), the kernel's state should not be considered safe for
production use after KUnit tests are run.

This both marks KUnit modules as test modules using MODULE_INFO() and
manually taints the kernel when tests are run (which catches builtin
tests).

Acked-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Tested-by: Daniel Latypov <dlatypov@xxxxxxxxxx>
Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Signed-off-by: David Gow <davidgow@xxxxxxxxxx>
---

No changes since v5:
https://lore.kernel.org/linux-kselftest/20220702040959.3232874-3-davidgow@xxxxxxxxxx/

No changes since v4:
https://lore.kernel.org/linux-kselftest/20220701084744.3002019-3-davidgow@xxxxxxxxxx/


David, Brendan, Andrew,

Just confirming the status of these patches. I applied v4 1/3 and v4 3/4
to linux-kselftest kunit for 5.20-rc1.

I am seeing v5 and v6 now. Andrew applied v5 looks like. Would you like
me to drop the two I applied? Do we have to refresh with v6?

thanks,
-- Shuah