From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AC62C282C5 for ; Thu, 24 Jan 2019 19:21:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ECBF0218D2 for ; Thu, 24 Jan 2019 19:21:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548357701; bh=qG1/cHiAxBwgGnjg3q1aPn0MjvfJ9DkF/0zqWGTApbk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=VBMWr0Dnn70x8w5kNR2KUbP9NREWmbLfLiOgN2Ozy9QEmdj897ueMClnNM0XWbc3D EkzELApqXwb8X29ChzZe1ScL06tDh6QGZNDgfSCFAhDN0NqayK9fDDPVqH4oU5rTsw lleBzD8XehnqIJGlIFOvBRXkX7hR8fCIY7ozUXag= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729033AbfAXTVi (ORCPT ); Thu, 24 Jan 2019 14:21:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:45928 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726049AbfAXTVi (ORCPT ); Thu, 24 Jan 2019 14:21:38 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1F8E2218CD; Thu, 24 Jan 2019 19:21:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548357697; bh=qG1/cHiAxBwgGnjg3q1aPn0MjvfJ9DkF/0zqWGTApbk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TsmIL7s58ILdZMeEnNwg1OxSnZMPmhNbwgFQZUb3EOSrhz0OhsBIawGuQZaLqC84r 3mdDcN40PM4P2s2r0mgNrbvgxfVd3ZgIn1dNMBLmFwsThmzvCOEJdudK2JVOwx2ED2 2FGR84VyF26wsvSCHHRcIL2D+w4iKqZzmUm+E2pA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andreas Larsson , "David S. Miller" , Guenter Roeck Subject: [PATCH 3.18 01/52] sparc32: Fix inverted invalid_frame_pointer checks on sigreturns Date: Thu, 24 Jan 2019 20:19:25 +0100 Message-Id: <20190124190141.127425024@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190124190140.879495253@linuxfoundation.org> References: <20190124190140.879495253@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andreas Larsson commit 07b5ab3f71d318e52c18cc3b73c1d44c908aacfa upstream. Signed-off-by: Andreas Larsson Signed-off-by: David S. Miller Cc: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- arch/sparc/kernel/signal_32.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -89,7 +89,7 @@ asmlinkage void do_sigreturn(struct pt_r sf = (struct signal_frame __user *) regs->u_regs[UREG_FP]; /* 1. Make sure we are not getting garbage from the user */ - if (!invalid_frame_pointer(sf, sizeof(*sf))) + if (invalid_frame_pointer(sf, sizeof(*sf))) goto segv_and_exit; if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP])) @@ -150,7 +150,7 @@ asmlinkage void do_rt_sigreturn(struct p synchronize_user_stack(); sf = (struct rt_signal_frame __user *) regs->u_regs[UREG_FP]; - if (!invalid_frame_pointer(sf, sizeof(*sf))) + if (invalid_frame_pointer(sf, sizeof(*sf))) goto segv; if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))