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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id f5sm640523pfe.79.2021.06.23.13.39.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Jun 2021 13:39:45 -0700 (PDT) From: Kees Cook To: Greg Kroah-Hartman Cc: Kees Cook , stable@vger.kernel.org, Guillaume Tucker , David Laight , Arnd Bergmann , linux-kernel@vger.kernel.org, kernelci@groups.io, linux-kselftest@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH 4/9] lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE Date: Wed, 23 Jun 2021 13:39:31 -0700 Message-Id: <20210623203936.3151093-5-keescook@chromium.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210623203936.3151093-1-keescook@chromium.org> References: <20210623203936.3151093-1-keescook@chromium.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=821; h=from:subject; bh=Ug1zxBYqfqGVjk6HZPE+S2IQ++k8iErOOapO5olSeEg=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBg05wGnJvmDSLi1MPOx05nkNSD/27SmvDUPYKaSZ+b ABK1bYKJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYNOcBgAKCRCJcvTf3G3AJhiJEA Ciux3+IGOay7Jw49WbIkgIv0TxSZgcO90q+vD3qxYri5Kve5Gl362F2aW0FCOlOtxfzOnGmC53o+vL mnCazUpoqn0dW/Y15W4dfOo+HoN5/Afr2nMEj2cwPYh7e2v3kQ2/JK4gaqP9mMDegUGCvWynQbQq54 md3YCttGo14SuaAMF9Wgo60xgxde5gIvQadm2WfvXU0BLyeZBBQb/iHJb8A06PBRzIBP06Nu+NmVVS 4gjNsMrbg6ltVcNDZ67UJ4sjzuFEP2hO+bd3d6/D/d7os59xJd11AHlpBYfk1gCBMC4wl/ZHgbOsaY ew49zKobbo1qt1K8F7Yct3U3IZZ9e2Ny/XCdM/rQMR0KlGYK/LXREO8mEubV2DBQzQidihoy2cFwBk 5gEjXn+w2QmsY5GXkuCXxsRXVw90q9IyT0Qt6kyJ44vqmTKpUFpcarqthBP1/2nXx243B73YaVCB12 6nd+koQb1m5NQNvzwZ8i/jObt5py/ucSDlpCVQ/PCl3NUt9sRB0S8MRNKXxgEJuNMGGs/BUSoYK5AE 51LAiLpudvJPuDuLgHUfzx1Ig+tAVem+P/7WoryLM/rDXtXqsXoyyHzBPcZGczV6nPm7xCwdkviySP adfzxjhgaQrqToXPyTkus9c6NYZDhVyUcK6oihTYUAjfRzEQc+F7f3grbaNA== 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 When built under CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS, this test is expected to fail (i.e. not trip an exception). Fixes: 46d1a0f03d66 ("selftests/lkdtm: Add tests for LKDTM targets") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook --- drivers/misc/lkdtm/bugs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c index 0e8254d0cf0b..9ff02bdf3153 100644 --- a/drivers/misc/lkdtm/bugs.c +++ b/drivers/misc/lkdtm/bugs.c @@ -161,6 +161,9 @@ void lkdtm_UNALIGNED_LOAD_STORE_WRITE(void) if (*p == 0) val = 0x87654321; *p = val; + + if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) + pr_err("XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS\n"); } void lkdtm_SOFTLOCKUP(void) -- 2.30.2