From patchwork Mon Sep 9 14:16:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= X-Patchwork-Id: 13797173 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BC6ACECE57A for ; Mon, 9 Sep 2024 14:20:41 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1snfCy-0001VR-Fj; Mon, 09 Sep 2024 10:17:36 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snfCr-0000nC-2H for qemu-devel@nongnu.org; Mon, 09 Sep 2024 10:17:29 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snfCo-0003MY-CW for qemu-devel@nongnu.org; Mon, 09 Sep 2024 10:17:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1725891441; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YFAkaiR0fjrqA2GqckLaPVwtf3hYK4UWq/V1KGW3Uok=; b=M/G1ur00LpdsMBswe7sC2e+pjhAfh8jJayA0WgLw2WMgMVhT6Yi9q6ylEnaBxkIaUCpVoU 4AoRCxm3NhDcPqqJ8uNUf72wIU4nQJB/gltnECuDrJk3o4tDItR870QFmGq5mE5fCuqdhk nU818fNm/5trsc7Oa5AGLZNKwqk1IQI= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-244-IVSuy0fjOkCAaptoHpqThw-1; Mon, 09 Sep 2024 10:17:20 -0400 X-MC-Unique: IVSuy0fjOkCAaptoHpqThw-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DF5F91944DDF; Mon, 9 Sep 2024 14:17:18 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.42.28.212]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id CBEFC1956054; Mon, 9 Sep 2024 14:17:13 +0000 (UTC) From: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Hyman Huang , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , =?utf-8?q?Marc?= =?utf-8?q?-Andr=C3=A9_Lureau?= , Eric Blake , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Hanna Reitz , qemu-block@nongnu.org, qemu-stable@nongnu.org, Laurent Vivier , Thomas Huth , Paolo Bonzini , Kevin Wolf , Markus Armbruster , Peter Maydell Subject: [PULL 06/10] crypto: avoid leak of ctx when bad cipher mode is given Date: Mon, 9 Sep 2024 15:16:31 +0100 Message-ID: <20240909141635.1459701-7-berrange@redhat.com> In-Reply-To: <20240909141635.1459701-1-berrange@redhat.com> References: <20240909141635.1459701-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.141, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Fixes: Coverity CID 1546884 Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Daniel P. Berrangé --- crypto/cipher-nettle.c.inc | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/crypto/cipher-nettle.c.inc b/crypto/cipher-nettle.c.inc index 42b39e18a2..766de036ba 100644 --- a/crypto/cipher-nettle.c.inc +++ b/crypto/cipher-nettle.c.inc @@ -734,16 +734,19 @@ static QCryptoCipher *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, #ifdef CONFIG_CRYPTO_SM4 case QCRYPTO_CIPHER_ALG_SM4: { - QCryptoNettleSm4 *ctx = g_new0(QCryptoNettleSm4, 1); + QCryptoNettleSm4 *ctx; + const QCryptoCipherDriver *drv; switch (mode) { case QCRYPTO_CIPHER_MODE_ECB: - ctx->base.driver = &qcrypto_nettle_sm4_driver_ecb; + drv = &qcrypto_nettle_sm4_driver_ecb; break; default: goto bad_cipher_mode; } + ctx = g_new0(QCryptoNettleSm4, 1); + ctx->base.driver = drv; sm4_set_encrypt_key(&ctx->key[0], key); sm4_set_decrypt_key(&ctx->key[1], key);