diff options
| author | David Gow <davidgow@google.com> | 2022-07-01 10:47:41 +0200 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2022-07-02 00:38:35 +0200 |
| commit | 2852ca7fba9f77b204f0fe953b31fadd0057c936 (patch) | |
| tree | f1115190292206c03e129a4b5c579e976ff9d03c /Documentation/admin-guide | |
| parent | Linux 5.19-rc1 (diff) | |
| download | linux-2852ca7fba9f77b204f0fe953b31fadd0057c936.tar.xz linux-2852ca7fba9f77b204f0fe953b31fadd0057c936.zip | |
panic: Taint kernel if tests are run
Most in-kernel tests (such as KUnit tests) are not supposed to run on
production systems: they may do deliberately illegal things to trigger
errors, and have security implications (for example, KUnit assertions
will often deliberately leak kernel addresses).
Add a new taint type, TAINT_TEST to signal that a test has been run.
This will be printed as 'N' (originally for kuNit, as every other
sensible letter was taken.)
This should discourage people from running these tests on production
systems, and to make it easier to tell if tests have been run
accidentally (by loading the wrong configuration, etc.)
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/tainted-kernels.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/admin-guide/tainted-kernels.rst b/Documentation/admin-guide/tainted-kernels.rst index ceeed7b0798d..7d80e8c307d1 100644 --- a/Documentation/admin-guide/tainted-kernels.rst +++ b/Documentation/admin-guide/tainted-kernels.rst @@ -100,6 +100,7 @@ Bit Log Number Reason that got the kernel tainted 15 _/K 32768 kernel has been live patched 16 _/X 65536 auxiliary taint, defined for and used by distros 17 _/T 131072 kernel was built with the struct randomization plugin + 18 _/N 262144 an in-kernel test has been run === === ====== ======================================================== Note: The character ``_`` is representing a blank in this table to make reading |