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=-11.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,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 20089C04AAC for ; Mon, 20 May 2019 12:16:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E9F3620863 for ; Mon, 20 May 2019 12:16:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558354583; bh=GV2YVUH8HKMj4chMjjgTEuLD9Qveafzk1fUnzvnwZyQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=V4sJ25sBrCzgT/61Tw9TZC/cqVCoW437aBEfrPMhR3bMC1K1vMsfhGToqn60PDdoA iieZjwIT5IUemU1206SOYL7t+e680FEeGyumDjiuUo3ddZvJKbc1NdZUz6nPuD7yGn KWD1+aV6xGVAnwef/A0UTgqDE3oid64EUEitSvX4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732921AbfETMQW (ORCPT ); Mon, 20 May 2019 08:16:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:57026 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732845AbfETMQS (ORCPT ); Mon, 20 May 2019 08:16:18 -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 8981620815; Mon, 20 May 2019 12:16:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558354578; bh=GV2YVUH8HKMj4chMjjgTEuLD9Qveafzk1fUnzvnwZyQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dFLa5QmnGEqZR71GddF+ue3LuX1YIsnyqi3rPb7/1twjcrtoHj9PCIfHPcEqMQnLs WLwQXpObdYFPa7+LaEB1BGhmbqLc24q0OfGJMFqj5IzPdvXX3ql0BsJrt/pqEcq8Nj 9kl/YPkq4je/G/9fW73j0C6NYq8A+Ir5Es4ulWZU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Ondrej=20Mosn=C3=A1=C4=8Dek?= , Daniel Axtens , Michael Ellerman , Herbert Xu Subject: [PATCH 4.9 13/44] crypto: vmx - fix copy-paste error in CTR mode Date: Mon, 20 May 2019 14:14:02 +0200 Message-Id: <20190520115232.605785186@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190520115230.720347034@linuxfoundation.org> References: <20190520115230.720347034@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: Daniel Axtens commit dcf7b48212c0fab7df69e84fab22d6cb7c8c0fb9 upstream. The original assembly imported from OpenSSL has two copy-paste errors in handling CTR mode. When dealing with a 2 or 3 block tail, the code branches to the CBC decryption exit path, rather than to the CTR exit path. This leads to corruption of the IV, which leads to subsequent blocks being corrupted. This can be detected with libkcapi test suite, which is available at https://github.com/smuellerDD/libkcapi Reported-by: Ondrej Mosnáček Fixes: 5c380d623ed3 ("crypto: vmx - Add support for VMS instructions by ASM") Cc: stable@vger.kernel.org Signed-off-by: Daniel Axtens Tested-by: Michael Ellerman Tested-by: Ondrej Mosnacek Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/vmx/aesp8-ppc.pl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/crypto/vmx/aesp8-ppc.pl +++ b/drivers/crypto/vmx/aesp8-ppc.pl @@ -1815,7 +1815,7 @@ Lctr32_enc8x_three: stvx_u $out1,$x10,$out stvx_u $out2,$x20,$out addi $out,$out,0x30 - b Lcbc_dec8x_done + b Lctr32_enc8x_done .align 5 Lctr32_enc8x_two: @@ -1827,7 +1827,7 @@ Lctr32_enc8x_two: stvx_u $out0,$x00,$out stvx_u $out1,$x10,$out addi $out,$out,0x20 - b Lcbc_dec8x_done + b Lctr32_enc8x_done .align 5 Lctr32_enc8x_one: