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authorKees Cook <keescook@chromium.org>2020-12-15 20:46:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 22:46:18 -0800
commitd0a3ac549f389c1511a4df0d7638536305205d20 (patch)
tree31a2ecbcc540c42e8e813b33f8dc3b3d828d036f /lib
parent79791378a1bc9e218462211742e48e375371e8c5 (diff)
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ubsan: enable for all*config builds
With UBSAN_OBJECT_SIZE disabled for GCC, only UBSAN_ALIGNMENT remained a noisy UBSAN option. Disable it for COMPILE_TEST so the rest of UBSAN can be used for full all*config builds or other large combinations. [sfr@canb.auug.org.au: add .data..Lubsan_data*/.data..Lubsan_type* sections explicitly] Link: https://lkml.kernel.org/r/20201208230157.42c42789@canb.auug.org.au Link: https://lore.kernel.org/lkml/CAHk-=wgXW=YLxGN0QVpp-1w5GDd2pf1W-FqY15poKzoVfik2qA@mail.gmail.com/ Link: https://lkml.kernel.org/r/20201203004437.389959-6-keescook@chromium.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: George Popescu <georgepope@android.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Marco Elver <elver@google.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Oberparleiter <oberpar@linux.ibm.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.ubsan3
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan
index 6e8b67d4b0d9..fa78f0f3c1dc 100644
--- a/lib/Kconfig.ubsan
+++ b/lib/Kconfig.ubsan
@@ -130,7 +130,6 @@ config UBSAN_ENUM
config UBSAN_SANITIZE_ALL
bool "Enable instrumentation for the entire kernel"
depends on ARCH_HAS_UBSAN_SANITIZE_ALL
- depends on !COMPILE_TEST
default y
help
This option activates instrumentation for the entire kernel.
@@ -142,7 +141,7 @@ config UBSAN_SANITIZE_ALL
config UBSAN_ALIGNMENT
bool "Enable checks for pointers alignment"
default !HAVE_EFFICIENT_UNALIGNED_ACCESS
- depends on !UBSAN_TRAP
+ depends on !UBSAN_TRAP && !COMPILE_TEST
depends on $(cc-option,-fsanitize=alignment)
help
This option enables the check of unaligned memory accesses.