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Age	Commit message (Collapse)	Author
2022-11-22	kunit/fortify: Validate __alloc_size attribute results	Kees Cook
	Validate the effect of the __alloc_size attribute on allocators. If the compiler doesn't support __builtin_dynamic_object_size(), skip the associated tests. (For GCC, just remove the "--make_options" line below...) $ ./tools/testing/kunit/kunit.py run --arch x86_64 \ --kconfig_add CONFIG_FORTIFY_SOURCE=y \ --make_options LLVM=1 fortify ... [15:16:30] ================== fortify (10 subtests) =================== [15:16:30] [PASSED] known_sizes_test [15:16:30] [PASSED] control_flow_split_test [15:16:30] [PASSED] alloc_size_kmalloc_const_test [15:16:30] [PASSED] alloc_size_kmalloc_dynamic_test [15:16:30] [PASSED] alloc_size_vmalloc_const_test [15:16:30] [PASSED] alloc_size_vmalloc_dynamic_test [15:16:30] [PASSED] alloc_size_kvmalloc_const_test [15:16:30] [PASSED] alloc_size_kvmalloc_dynamic_test [15:16:30] [PASSED] alloc_size_devm_kmalloc_const_test [15:16:30] [PASSED] alloc_size_devm_kmalloc_dynamic_test [15:16:30] ===================== [PASSED] fortify ===================== [15:16:30] ============================================================ [15:16:30] Testing complete. Ran 10 tests: passed: 10 [15:16:31] Elapsed time: 8.348s total, 0.002s configuring, 6.923s building, 1.075s running For earlier GCC prior to version 12, the dynamic tests will be skipped: [15:18:59] ================== fortify (10 subtests) =================== [15:18:59] [PASSED] known_sizes_test [15:18:59] [PASSED] control_flow_split_test [15:18:59] [PASSED] alloc_size_kmalloc_const_test [15:18:59] [SKIPPED] alloc_size_kmalloc_dynamic_test [15:18:59] [PASSED] alloc_size_vmalloc_const_test [15:18:59] [SKIPPED] alloc_size_vmalloc_dynamic_test [15:18:59] [PASSED] alloc_size_kvmalloc_const_test [15:18:59] [SKIPPED] alloc_size_kvmalloc_dynamic_test [15:18:59] [PASSED] alloc_size_devm_kmalloc_const_test [15:18:59] [SKIPPED] alloc_size_devm_kmalloc_dynamic_test [15:18:59] ===================== [PASSED] fortify ===================== [15:18:59] ============================================================ [15:18:59] Testing complete. Ran 10 tests: passed: 6, skipped: 4 [15:18:59] Elapsed time: 11.965s total, 0.002s configuring, 10.540s building, 1.068s running Cc: David Gow <davidgow@google.com> Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
2022-09-14	fortify: Adjust KUnit test for modular build	Kees Cook
	A much better "unknown size" string pointer is available directly from struct test, so use that instead of a global that isn't shared with modules. Reported-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/lkml/YyCOHOchVuE/E7vS@dev-arch.thelio-3990X Fixes: 875bfd5276f3 ("fortify: Add KUnit test for FORTIFY_SOURCE internals") Cc: linux-hardening@vger.kernel.org Build-tested-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2022-09-07	fortify: Add KUnit test for FORTIFY_SOURCE internals	Kees Cook
	Add lib/fortify_kunit.c KUnit test for checking the expected behavioral characteristics of FORTIFY_SOURCE internals. Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Tom Rix <trix@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: "Steven Rostedt (Google)" <rostedt@goodmis.org> Cc: Yury Norov <yury.norov@gmail.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Sander Vanheule <sander@svanheule.net> Cc: linux-hardening@vger.kernel.org Cc: llvm@lists.linux.dev Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Kees Cook <keescook@chromium.org>