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init/Kconfig: lower GCC version check for -Warray-bounds

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We continue to see false positives from -Warray-bounds even in GCC 10,
which is getting reported in a few places[1] still:

security/security.c:811:2: warning: `memcpy' offset 32 is out of the bounds [0, 0] [-Warray-bounds]

Lower the GCC version check from 11 to 10.

Link: https://lkml.kernel.org/r/20240223170824.work.768-kees@kernel.org
Reported-by: Lu Yao <yaolu@kylinos.cn>
Closes: https://lore.kernel.org/lkml/20240117014541.8887-1-yaolu@kylinos.cn/
Link: https://lore.kernel.org/linux-next/65d84438.620a0220.7d171.81a7@mx.google.com [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Marc Aurèle La France <tsi@tuyoix.net>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kees Cook 2024-02-23 09:08:27 -08:00 committed by Andrew Morton
parent fc0c8f9089
commit 3e00f5802f
1 changed files with 3 additions and 3 deletions
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6
init/Kconfig
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@ -876,14 +876,14 @@ config CC_IMPLICIT_FALLTHROUGH
default "-Wimplicit-fallthrough=5" if CC_IS_GCC && $(cc-option,-Wimplicit-fallthrough=5) default "-Wimplicit-fallthrough=5" if CC_IS_GCC && $(cc-option,-Wimplicit-fallthrough=5)
default "-Wimplicit-fallthrough" if CC_IS_CLANG && $(cc-option,-Wunreachable-code-fallthrough) default "-Wimplicit-fallthrough" if CC_IS_CLANG && $(cc-option,-Wunreachable-code-fallthrough)
# Currently, disable gcc-11+ array-bounds globally. # Currently, disable gcc-10+ array-bounds globally.
# It's still broken in gcc-13, so no upper bound yet. # It's still broken in gcc-13, so no upper bound yet.
config GCC11_NO_ARRAY_BOUNDS config GCC10_NO_ARRAY_BOUNDS
def_bool y def_bool y
config CC_NO_ARRAY_BOUNDS config CC_NO_ARRAY_BOUNDS
bool bool
default y if CC_IS_GCC && GCC_VERSION >= 110000 && GCC11_NO_ARRAY_BOUNDS default y if CC_IS_GCC && GCC_VERSION >= 100000 && GCC10_NO_ARRAY_BOUNDS
# Currently, disable -Wstringop-overflow for GCC globally. # Currently, disable -Wstringop-overflow for GCC globally.
config GCC_NO_STRINGOP_OVERFLOW config GCC_NO_STRINGOP_OVERFLOW