From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: Re: [PATCH] pinctrl: samsung: Suppress unbinding to prevent theoretical attacks Date: Thu, 26 May 2016 11:08:42 +0200 Message-ID: References: <1463464926-17482-1-git-send-email-k.kozlowski@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Received: from mail-oi0-f46.google.com ([209.85.218.46]:35853 "EHLO mail-oi0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752689AbcEZJIn (ORCPT ); Thu, 26 May 2016 05:08:43 -0400 Received: by mail-oi0-f46.google.com with SMTP id j1so114668797oih.3 for ; Thu, 26 May 2016 02:08:43 -0700 (PDT) In-Reply-To: <1463464926-17482-1-git-send-email-k.kozlowski@samsung.com> Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Krzysztof Kozlowski Cc: Tomasz Figa , Sylwester Nawrocki , Kukjin Kim , "linux-arm-kernel@lists.infradead.org" , linux-samsung-soc , "linux-gpio@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Marek Szyprowski , Bartlomiej Zolnierkiewicz On Tue, May 17, 2016 at 8:02 AM, Krzysztof Kozlowski wrote: > Although unbinding a pinctrl driver requires root privileges but it > still might be used theoretically in certain attacks (by triggering NULL > pointer exception or memory corruption). Patch applied with Javier's review tag. I suspect this kind of patch should be done to a few GPIO controller :/ Yours, Linus Walleij