Kees Cook
d46e58ef77
lkdtm/bugs: Check that a per-task stack canary exists
...
Introduce REPORT_STACK_CANARY to check for differing stack canaries
between two processes (i.e. that an architecture is correctly implementing
per-task stack canaries), using the task_struct canary as the hint to
locate in the stack. Requires that one of the processes being tested
not be pid 1.
Cc: Ard Biesheuvel <ardb@kernel.org >
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Signed-off-by: Kees Cook <keescook@chromium.org >
Link: https://lore.kernel.org/r/20211022223826.330653-3-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
2021-10-25 09:13:46 +02:00
Kees Cook
c75be56e35
lkdtm/bugs: Add ARRAY_BOUNDS to selftests
...
Add CONFIG hints about why the ARRAY_BOUNDS test might fail, and
similarly include the CONFIGs needed to pass the ARRAY_BOUNDS test via
the selftests, and add to selftests.
Cc: kernelci@groups.io
Suggested-by: Guillaume Tucker <guillaume.tucker@collabora.com >
Signed-off-by: Kees Cook <keescook@chromium.org >
Link: https://lore.kernel.org/r/20210818174855.2307828-2-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
2021-08-18 22:28:51 +02:00
Kees Cook
37a0ca7f3e
lkdtm/heap: Add init_on_alloc tests
...
Add SLAB and page allocator tests for init_on_alloc. Testing for
init_on_free was already happening via the poisoning tests.
Signed-off-by: Kees Cook <keescook@chromium.org >
Link: https://lore.kernel.org/r/20210623203936.3151093-10-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
2021-06-24 15:32:08 +02:00
Kees Cook
b61ce4d81b
selftests/lkdtm: Enable various testable CONFIGs
...
Add a handful of LKDTM-testable features that depend on certain CONFIGs
so that they are visible in logs for CI systems that run the selftests.
Others could be added, but may be seen as having too high a trade-off
for general testing.
Cc: kernelci@groups.io
Suggested-by: Guillaume Tucker <guillaume.tucker@collabora.com >
Signed-off-by: Kees Cook <keescook@chromium.org >
Link: https://lore.kernel.org/r/20210623203936.3151093-9-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
2021-06-24 15:32:08 +02:00
Kees Cook
46d1a0f03d
selftests/lkdtm: Add tests for LKDTM targets
...
This adds a basic framework for running all the "safe" LKDTM tests. This
will allow easy introspection into any selftest logs to examine the
results of most LKDTM tests.
Signed-off-by: Kees Cook <keescook@chromium.org >
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org >
2020-01-10 14:50:28 -07:00
