From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <18706.51381.987014.370948@cargo.ozlabs.ibm.com> Date: Thu, 6 Nov 2008 21:36:37 +1100 From: Paul Mackerras To: Andreas Schwab Subject: Re: [PATCH] Fix msr check in compat_sys_swapcontext In-Reply-To: References: <18706.16317.759662.855430@cargo.ozlabs.ibm.com> Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Andreas Schwab writes: > Paul Mackerras writes: > > > we need to use get_user, not __get_user, since we haven't done an > > access_ok() check on the address. > > The address is always ok since its a compat pointer, see do_setcontext. OK, since it's inside a CONFIG_PPC64 block. I'll add a paragraph to the patch description pointing that out. Paul.