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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id q13sm13041500pjq.10.2021.08.27.09.30.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Aug 2021 09:30:18 -0700 (PDT) From: Kees Cook To: linux-kernel@vger.kernel.org Cc: Kees Cook , Arnd Bergmann , Masahiro Yamada , linux-kbuild@vger.kernel.org, "Gustavo A . R . Silva" , Rasmus Villemoes , Keith Packard , Dan Williams , Daniel Vetter , clang-built-linux@googlegroups.com, linux-hardening@vger.kernel.org Subject: [PATCH v3 4/5] Makefile: Enable -Warray-bounds Date: Fri, 27 Aug 2021 09:30:14 -0700 Message-Id: <20210827163015.3141722-5-keescook@chromium.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210827163015.3141722-1-keescook@chromium.org> References: <20210827163015.3141722-1-keescook@chromium.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1113; h=from:subject; bh=oefMcHZzjrqvoOMjUB7suXN8EJKiDU2oIYgtW+uUBtg=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBhKRMXaFIio04DmLvoRaIim4FnyDX46vN/W1R6TAc9 7X8LHOKJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYSkTFwAKCRCJcvTf3G3AJkHDEA CS1lNg3ppEL752ZcERsA8g+c+eYjHTxh15ZTmzUnEtLj6BwMfdbA4/x1xXrjYx1Bg3dJBsGFGhhpQt ozHruyY7Oo7N981nkjQ17v62G45VttSUW0Da9NH4LAmLVzsxHD0eNX4PVE5ZDbGbbH6eE5CrpdTzRJ iNUg4Bto8WHejlPUM/iWswUDI35C38Ckinp80US2/WBXEd2+4PmvnF2qkZGkmZ65WqzLdDZRh3LGu2 HBBxun0qKGvwYwui7oSaKwzCgWZKOkedPVBzfLc3xYcVrLu5swuJmTPLb7YT5WXPH2HdZI7FYqB/Py PjJtQhMrIn2yB8i83VdeCbOZ1IV70o6Eo7mSwFigYSWvtQnG3RZroi9sq1Agy027oHBW07Rvv/umF1 JhVtAHQtTEGjfr3kW89UTaY4HfFsD1JF4oi+CR12uO9+ci9R0DYPRkBFqjL2Y27danaiOyoY2u7yTx mZ6JPA0BHivZtZe/u+uSimSgojZF3B50suFMGmwa7kF/oonGQDz6IrnMy3twHYH7wzin56Vaj8oVVw B+4BrvUOeXYtj8To2ctra/tgAK26O/YGcMht6SuqX/ErTpO7QbpHL2fFyYf1kbmbIJc6vgwVesrVHg iqwNiKHwsWkpf7q4OjGMI+O6JX7fdDBcHhG2QRelqvzBoga7Vkav4a26D+iw== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org With the recent fixes for flexible arrays and expanded FORTIFY_SOURCE coverage, it is now possible to enable -Warray-bounds. Since both GCC and Clang include -Warray-bounds in -Wall, we just need to stop disabling it. Cc: Arnd Bergmann Cc: Masahiro Yamada Cc: linux-kbuild@vger.kernel.org Co-developed-by: Gustavo A. R. Silva Signed-off-by: Gustavo A. R. Silva Signed-off-by: Kees Cook --- Makefile | 1 - 1 file changed, 1 deletion(-) diff --git a/Makefile b/Makefile index e4f5895badb5..8e7e73a642e2 100644 --- a/Makefile +++ b/Makefile @@ -995,7 +995,6 @@ KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) # We'll want to enable this eventually, but it's not going away for 5.7 at least KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) -KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) # Another good warning that we'll want to enable eventually -- 2.30.2