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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 AC9D5C5518A for ; Wed, 22 Apr 2020 11:03:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 833A72076E for ; Wed, 22 Apr 2020 11:03:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587553402; bh=6aBwVWkpgvenD+Eks1k1FUa5VQnfnIQFKzB25qLtDu4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BPizgpz5m1yf/0vgZuyjewH9GDzouQzENAM+KNf6KBwuhk2k7jB5x2HeUqnSR9iR1 Hyk9zeWpbpZPBn1XM+/DN79Blou1/Zcz8ygY4m/E5JJox5zgjNH08gtVq0TDojY2+4 bOsZr+y5Urz5CC/ujuh6xsRaEBpIz3m5q4H9zlXA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732467AbgDVLDV (ORCPT ); Wed, 22 Apr 2020 07:03:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:47100 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726597AbgDVKAE (ORCPT ); Wed, 22 Apr 2020 06:00:04 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.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 1E1DA2077D; Wed, 22 Apr 2020 10:00:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587549604; bh=6aBwVWkpgvenD+Eks1k1FUa5VQnfnIQFKzB25qLtDu4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vUxMVxfHR0QyE443TyCa/m8X+BZLmNyZsDWlYAheNONk1CWFN6cowt/ZrgOM4OLR6 T/FVZDt2y+emb+fWd9Vt47bcp6Anv5LyihevsCSpfg7QHTe/YSI+ua/plI8Bmjs7Jl 3fU7zwb67g6N957egBRJ+ZIKYQZ143mFLmTbViDU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Thomas Gleixner , Frederic Weisbecker , Alexandre Chartre , Andy Lutomirski Subject: [PATCH 4.4 032/100] x86/entry/32: Add missing ASM_CLAC to general_protection entry Date: Wed, 22 Apr 2020 11:56:02 +0200 Message-Id: <20200422095028.574173221@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200422095022.476101261@linuxfoundation.org> References: <20200422095022.476101261@linuxfoundation.org> User-Agent: quilt/0.66 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 From: Thomas Gleixner commit 3d51507f29f2153a658df4a0674ec5b592b62085 upstream. All exception entry points must have ASM_CLAC right at the beginning. The general_protection entry is missing one. Fixes: e59d1b0a2419 ("x86-32, smap: Add STAC/CLAC instructions to 32-bit kernel entry") Signed-off-by: Thomas Gleixner Reviewed-by: Frederic Weisbecker Reviewed-by: Alexandre Chartre Reviewed-by: Andy Lutomirski Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20200225220216.219537887@linutronix.de Signed-off-by: Greg Kroah-Hartman --- arch/x86/entry/entry_32.S | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1071,6 +1071,7 @@ ENTRY(int3) END(int3) ENTRY(general_protection) + ASM_CLAC pushl $do_general_protection jmp error_code END(general_protection)