From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 03 Dec 2014 02:58:59 +0100 (CET) Received: from mailapp01.imgtec.com ([195.59.15.196]:32737 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27007993AbaLCB6dH-65d (ORCPT ); Wed, 3 Dec 2014 02:58:33 +0100 Received: from KLMAIL01.kl.imgtec.org (unknown [192.168.5.35]) by Websense Email Security Gateway with ESMTPS id 5296958809A26; Wed, 3 Dec 2014 01:58:26 +0000 (GMT) Received: from KLMAIL02.kl.imgtec.org (10.40.60.222) by KLMAIL01.kl.imgtec.org (192.168.5.35) with Microsoft SMTP Server (TLS) id 14.3.195.1; Wed, 3 Dec 2014 01:58:27 +0000 Received: from hhmail02.hh.imgtec.org (10.100.10.20) by klmail02.kl.imgtec.org (10.40.60.222) with Microsoft SMTP Server (TLS) id 14.3.195.1; Wed, 3 Dec 2014 01:58:27 +0000 Received: from BAMAIL02.ba.imgtec.org (10.20.40.28) by hhmail02.hh.imgtec.org (10.100.10.20) with Microsoft SMTP Server (TLS) id 14.3.210.2; Wed, 3 Dec 2014 01:58:26 +0000 Received: from [127.0.1.1] (192.168.65.146) by bamail02.ba.imgtec.org (10.20.40.28) with Microsoft SMTP Server (TLS) id 14.3.174.1; Tue, 2 Dec 2014 17:58:24 -0800 Subject: [PATCH v3 3/3] MIPS: set stack/data protection as non-executable From: Leonid Yegoshin To: , , , , , , , , , , , , , , , , , , , , , , , , , , Date: Tue, 2 Dec 2014 17:58:24 -0800 Message-ID: <20141203015824.13886.74616.stgit@linux-yegoshin> In-Reply-To: <20141203015537.13886.50830.stgit@linux-yegoshin> References: <20141203015537.13886.50830.stgit@linux-yegoshin> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.65.146] Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 44551 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: Leonid.Yegoshin@imgtec.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips This is a last step of 3 patches which shift FPU emulation out of stack into protected area. So, it disables a default executable stack. Additionally, it sets a default data area non-executable protection. Signed-off-by: Leonid Yegoshin --- arch/mips/include/asm/page.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 3be81803595d..d49ba81cb4ed 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -230,7 +230,7 @@ extern int __virt_addr_valid(const volatile void *kaddr); #define virt_addr_valid(kaddr) \ __virt_addr_valid((const volatile void *) (kaddr)) -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ +#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) #define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE) From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailapp01.imgtec.com ([195.59.15.196]:32737 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27007993AbaLCB6dH-65d (ORCPT ); Wed, 3 Dec 2014 02:58:33 +0100 Subject: [PATCH v3 3/3] MIPS: set stack/data protection as non-executable From: Leonid Yegoshin Date: Tue, 2 Dec 2014 17:58:24 -0800 Message-ID: <20141203015824.13886.74616.stgit@linux-yegoshin> In-Reply-To: <20141203015537.13886.50830.stgit@linux-yegoshin> References: <20141203015537.13886.50830.stgit@linux-yegoshin> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-subscribe: List-owner: List-post: List-archive: To: linux-mips@linux-mips.org, Zubair.Kakakhel@imgtec.com, geert+renesas@glider.be, david.daney@cavium.com, peterz@infradead.org, paul.gortmaker@windriver.com, davidlohr@hp.com, macro@linux-mips.org, chenhc@lemote.com, cl@linux.com, mingo@kernel.org, richard@nod.at, zajec5@gmail.com, james.hogan@imgtec.com, keescook@chromium.org, tj@kernel.org, alex@alex-smith.me.uk, pbonzini@redhat.com, blogic@openwrt.org, paul.burton@imgtec.com, qais.yousef@imgtec.com, linux-kernel@vger.kernel.org, ralf@linux-mips.org, markos.chandras@imgtec.com, dengcheng.zhu@imgtec.com, manuel.lauss@gmail.com, lars.persson@axis.com Message-ID: <20141203015824.Zb9Q7klkk5GPjTPExks5mesZz_F4aqNHRy_dtY5aVEA@z> This is a last step of 3 patches which shift FPU emulation out of stack into protected area. So, it disables a default executable stack. Additionally, it sets a default data area non-executable protection. Signed-off-by: Leonid Yegoshin --- arch/mips/include/asm/page.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 3be81803595d..d49ba81cb4ed 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -230,7 +230,7 @@ extern int __virt_addr_valid(const volatile void *kaddr); #define virt_addr_valid(kaddr) \ __virt_addr_valid((const volatile void *) (kaddr)) -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ +#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) #define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE)