From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Sat, 04 Oct 2014 05:18:17 +0200 (CEST) Received: from mailapp01.imgtec.com ([195.59.15.196]:54223 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27009702AbaJDDRsu1O4Z (ORCPT ); Sat, 4 Oct 2014 05:17:48 +0200 Received: from KLMAIL01.kl.imgtec.org (unknown [192.168.5.35]) by Websense Email Security Gateway with ESMTPS id 22612B49C5AD2; Sat, 4 Oct 2014 04:17:41 +0100 (IST) 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; Sat, 4 Oct 2014 04:17:42 +0100 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; Sat, 4 Oct 2014 04:17:41 +0100 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 14.3.195.1; Sat, 4 Oct 2014 04:17:41 +0100 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; Fri, 3 Oct 2014 20:17:39 -0700 Subject: [PATCH 3/3] MIPS: set stack/data protection as non-executable To: , , , , , , , , , , , , , , , , , , , , , , From: Leonid Yegoshin Date: Fri, 3 Oct 2014 20:17:39 -0700 Message-ID: <20141004031739.28569.12863.stgit@linux-yegoshin> In-Reply-To: <20141004030438.28569.85536.stgit@linux-yegoshin> References: <20141004030438.28569.85536.stgit@linux-yegoshin> User-Agent: StGit/0.15 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: 42951 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 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 3be8180..d49ba81 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]:54223 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27009702AbaJDDRsu1O4Z (ORCPT ); Sat, 4 Oct 2014 05:17:48 +0200 Subject: [PATCH 3/3] MIPS: set stack/data protection as non-executable From: Leonid Yegoshin Date: Fri, 3 Oct 2014 20:17:39 -0700 Message-ID: <20141004031739.28569.12863.stgit@linux-yegoshin> In-Reply-To: <20141004030438.28569.85536.stgit@linux-yegoshin> References: <20141004030438.28569.85536.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, david.daney@cavium.com, peterz@infradead.org, paul.gortmaker@windriver.com, davidlohr@hp.com, macro@linux-mips.org, chenhc@lemote.com, zajec5@gmail.com, james.hogan@imgtec.com, keescook@chromium.org, alex@alex-smith.me.uk, tglx@linutronix.de, blogic@openwrt.org, jchandra@broadcom.com, paul.burton@imgtec.com, qais.yousef@imgtec.com, linux-kernel@vger.kernel.org, ralf@linux-mips.org, markos.chandras@imgtec.com, manuel.lauss@gmail.com, akpm@linux-foundation.org, lars.persson@axis.com Message-ID: <20141004031739.c9OYuPiiab_m8auEPi5iWH1zVlvdV-KTArLeBTNw7HU@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 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 3be8180..d49ba81 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)