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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=aHaqAGqhe3K0FS7ZJWcfKrDk8FNnWGrH4p9dPgIlLEI=; b=K6zVYc3HCZCQ3hx6m8HqMSj2i82Th4S5878X0x3G+NBXJgE6y1lJiJbYQHvMDk7ILP DDz+6hOuTlBRWbery0WXECd1eZpGyg1ZeRquHdGllz341cpSm0Ie3mp+NSKHRuhrFZwN Xy595MIP2iWDVqtNsPjZOh5tOP90hlX9qIQsHkG3exrYHjRervPBEHgDy5aEx4775OBW Zr14SEkgP56RCnPJeZFNh6nenzCcC3ST5Z81DJQLFwDc6un8YYOgppt6/4sLrrPAqbLd 6ouY/PNYMwfVZF2dF6QMm3sYwwxrXnMT0yAMMSux1uqCJrExy6SKjMX2P8WJE2NqsQZe UmhQ== X-Gm-Message-State: AOAM5309+jlWBKl7WKkzDDIf2TGD2phZRbgxKT16cRHbb8F/0zx6rAOd 8lOthz1Qv27/KwHzeRCT9O65wXNEYfT6FYmn X-Google-Smtp-Source: ABdhPJxLHS3PMbQxWIVzTKDBezKc6BJJRo1SnHumrFYMTaLxEK2aJwvkr072kiNzKD7DB3HQx9ZzMqtnLJ81bKYi X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:7220:84ff:fe09:7e9d]) (user=andreyknvl job=sendgmr) by 2002:a05:600c:2053:: with SMTP id p19mr2326483wmg.50.1601593895081; Thu, 01 Oct 2020 16:11:35 -0700 (PDT) Date: Fri, 2 Oct 2020 01:10:22 +0200 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog Subject: [PATCH v4 21/39] kasan, arm64: don't allow SW_TAGS with ARM64_MTE From: Andrey Konovalov To: Dmitry Vyukov , Vincenzo Frascino , Catalin Marinas , kasan-dev@googlegroups.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201001_191139_180830_A8F113DE X-CRM114-Status: GOOD ( 13.03 ) X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-7.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:44a listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_MED DKIMwl.org - Medium trust sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marco Elver , Elena Petrova , Andrey Konovalov , Kevin Brodsky , Will Deacon , Branislav Rankov , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko , linux-arm-kernel@lists.infradead.org, Andrey Ryabinin , Andrew Morton , Evgenii Stepanov Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Software tag-based KASAN provides its own tag checking machinery that can conflict with MTE. Don't allow enabling software tag-based KASAN when MTE is enabled. Signed-off-by: Andrey Konovalov Signed-off-by: Vincenzo Frascino Reviewed-by: Catalin Marinas --- Change-Id: Icd29bd0c6b1d3d7a0ee3d50c20490f404d34fc97 --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e7450fbd0aa7..e875db8e1c86 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -131,7 +131,7 @@ config ARM64 select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) - select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN + select HAVE_ARCH_KASAN_SW_TAGS if (HAVE_ARCH_KASAN && !ARM64_MTE) select HAVE_ARCH_KGDB select HAVE_ARCH_MMAP_RND_BITS select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT