From ed2b548f1017586c44f50654ef9febb42d491f31 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 6 Mar 2025 20:19:09 -0800 Subject: ubsan/overflow: Rework integer overflow sanitizer option to turn on everything Since we're going to approach integer overflow mitigation a type at a time, we need to enable all of the associated sanitizers, and then opt into types one at a time. Rename the existing "signed wrap" sanitizer to just the entire topic area: "integer wrap". Enable the implicit integer truncation sanitizers, with required callbacks and tests. Notably, this requires features (currently) only available in Clang, so we can depend on the cc-option tests to determine availability instead of doing version tests. Link: https://lore.kernel.org/r/20250307041914.937329-1-kees@kernel.org Signed-off-by: Kees Cook --- kernel/configs/hardening.config | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel') diff --git a/kernel/configs/hardening.config b/kernel/configs/hardening.config index 3fabb8f55ef6..dd7c32fb5ac1 100644 --- a/kernel/configs/hardening.config +++ b/kernel/configs/hardening.config @@ -46,7 +46,7 @@ CONFIG_UBSAN_BOUNDS=y # CONFIG_UBSAN_SHIFT is not set # CONFIG_UBSAN_DIV_ZERO is not set # CONFIG_UBSAN_UNREACHABLE is not set -# CONFIG_UBSAN_SIGNED_WRAP is not set +# CONFIG_UBSAN_INTEGER_WRAP is not set # CONFIG_UBSAN_BOOL is not set # CONFIG_UBSAN_ENUM is not set # CONFIG_UBSAN_ALIGNMENT is not set -- cgit v1.2.3