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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id d18sm1812151pgk.24.2021.08.25.22.05.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Aug 2021 22:05:00 -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 v2 4/5] Makefile: Enable -Warray-bounds Date: Wed, 25 Aug 2021 22:04:57 -0700 Message-Id: <20210826050458.1540622-5-keescook@chromium.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210826050458.1540622-1-keescook@chromium.org> References: <20210826050458.1540622-1-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/cbcAmAcsmYgBhJyD5aFIio04DmLvoRaIim4FnyDX46vN/W1R6TAc9 7X8LHOKJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYScg+QAKCRCJcvTf3G3AJnbVD/ 99uKUWved0lEF54nU1F7qKRM+Mv7siWIawdByX70YCMH1LpDZs6ja7HAHyb5nY0zJbQwGopcJsFn11 yntizr+UNLRhKE+CI5hmHijdbpaXrvNxCaSJF+DAkyEjqlmlAHSm1FWzX2ffYiEMhJTdPUebBpDVYr xwj4co1+92cPTQZg9VaD5UN55j9gc46QTYRsyvBl2jxtW8DPSVTWy7vaCya9Bn4TY5evml2nwFt3p+ sf7fn9Y1rf8xHpOEa+gNVbFst4tZ3KV9UupkpsSLi7+VLwDm9g2fwhma1aWdrtuO3q7iBbKEs3Y2Qq ans0Np+r32K3v5Pm7PYx8VDN9zn0LvK9Oc4Gsm6blZyPCqulPENZid0NeFXBICff4z2MgWn+UR4fyJ EqSn/aDYwWG6PjKkkfVr4NZr/olZHzwEhpaqReNAWzV01WUSmo+cmq3LIR7SslJXMiPM9F33KwApfq guhvH6SLi67EfhowGkIyFpDil1Keh+khqje+ZsIJgTqAhiBF72scXtqvP73hNT6w3M5x46LZyRLDbN TjvGaYP/k4JRtFdZYCxLFFVDov+8nlgA09DuTuePiFy68KyvBo1pZPZSNJejo1N5DSu5ll3PmckN+A IwAMOP/e2UwotUVUgDM95mAQA/ypXqzU/BhSxY9MkQfLOT5IAjW2i5ByugJw== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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