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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 44FAEC433E0 for ; Fri, 10 Jul 2020 06:21:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 218E52078B for ; Fri, 10 Jul 2020 06:21:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594362110; bh=ZfGuUxZZz6RO0lR3A8MY930nkonafEsFNdUgcMffvf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Ypmd0a+cWEYtwbZD2mT5/2IdBXTpviEZ3rzmJmHZpljJk/DPBhgOeouGdlPoWLe0z OFmXdjkmp5xF3mQ+dDmduBzFME5CaV9TgOHf0uK5WtkluGq6g86cSAmmXfoxIuivjj QB644qVp7bI7SFBHiAUh5shAxf0ZedJ42ncS34yY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725851AbgGJGVt (ORCPT ); Fri, 10 Jul 2020 02:21:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:38992 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725943AbgGJGVr (ORCPT ); Fri, 10 Jul 2020 02:21:47 -0400 Received: from sol.hsd1.ca.comcast.net (c-107-3-166-239.hsd1.ca.comcast.net [107.3.166.239]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 14F95207DF; Fri, 10 Jul 2020 06:21:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594362107; bh=ZfGuUxZZz6RO0lR3A8MY930nkonafEsFNdUgcMffvf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wIsdsI/gGx17laq0eBSQr0FYWwfvIU0NZkm/oiDSG5KnznyM/1ezomhmzPurcAjdh EL3IEZjkdrp+Gv9k9BRMv/jUqbkpNFjUH2ixOGHCOqnwlBp7u2+ZDlQgW3Rcmsri2f Mp5djDLN+H2hzx1+Mg1rgMbgY5b5ot1vNT57O564= From: Eric Biggers To: Mikulas Patocka , linux-crypto@vger.kernel.org Cc: dm-devel@redhat.com Subject: [PATCH v2 7/7] dm-crypt: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY Date: Thu, 9 Jul 2020 23:20:42 -0700 Message-Id: <20200710062042.113842-8-ebiggers@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200710062042.113842-1-ebiggers@kernel.org> References: <20200710062042.113842-1-ebiggers@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Mikulas Patocka Don't use crypto drivers that have the flag CRYPTO_ALG_ALLOCATES_MEMORY set. These drivers allocate memory and thus they are unsuitable for block I/O processing. Signed-off-by: Mikulas Patocka --- drivers/md/dm-crypt.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 000ddfab5ba0..7268faacbdf3 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -421,7 +421,8 @@ static int crypt_iv_lmk_ctr(struct crypt_config *cc, struct dm_target *ti, return -EINVAL; } - lmk->hash_tfm = crypto_alloc_shash("md5", 0, 0); + lmk->hash_tfm = crypto_alloc_shash("md5", 0, + CRYPTO_ALG_ALLOCATES_MEMORY); if (IS_ERR(lmk->hash_tfm)) { ti->error = "Error initializing LMK hash"; return PTR_ERR(lmk->hash_tfm); @@ -583,7 +584,8 @@ static int crypt_iv_tcw_ctr(struct crypt_config *cc, struct dm_target *ti, return -EINVAL; } - tcw->crc32_tfm = crypto_alloc_shash("crc32", 0, 0); + tcw->crc32_tfm = crypto_alloc_shash("crc32", 0, + CRYPTO_ALG_ALLOCATES_MEMORY); if (IS_ERR(tcw->crc32_tfm)) { ti->error = "Error initializing CRC32 in TCW"; return PTR_ERR(tcw->crc32_tfm); @@ -770,7 +772,8 @@ static int crypt_iv_elephant_ctr(struct crypt_config *cc, struct dm_target *ti, struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; int r; - elephant->tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0); + elephant->tfm = crypto_alloc_skcipher("ecb(aes)", 0, + CRYPTO_ALG_ALLOCATES_MEMORY); if (IS_ERR(elephant->tfm)) { r = PTR_ERR(elephant->tfm); elephant->tfm = NULL; @@ -2090,7 +2093,8 @@ static int crypt_alloc_tfms_skcipher(struct crypt_config *cc, char *ciphermode) return -ENOMEM; for (i = 0; i < cc->tfms_count; i++) { - cc->cipher_tfm.tfms[i] = crypto_alloc_skcipher(ciphermode, 0, 0); + cc->cipher_tfm.tfms[i] = crypto_alloc_skcipher(ciphermode, 0, + CRYPTO_ALG_ALLOCATES_MEMORY); if (IS_ERR(cc->cipher_tfm.tfms[i])) { err = PTR_ERR(cc->cipher_tfm.tfms[i]); crypt_free_tfms(cc); @@ -2116,7 +2120,8 @@ static int crypt_alloc_tfms_aead(struct crypt_config *cc, char *ciphermode) if (!cc->cipher_tfm.tfms) return -ENOMEM; - cc->cipher_tfm.tfms_aead[0] = crypto_alloc_aead(ciphermode, 0, 0); + cc->cipher_tfm.tfms_aead[0] = crypto_alloc_aead(ciphermode, 0, + CRYPTO_ALG_ALLOCATES_MEMORY); if (IS_ERR(cc->cipher_tfm.tfms_aead[0])) { err = PTR_ERR(cc->cipher_tfm.tfms_aead[0]); crypt_free_tfms(cc); @@ -2603,7 +2608,7 @@ static int crypt_ctr_auth_cipher(struct crypt_config *cc, char *cipher_api) return -ENOMEM; strncpy(mac_alg, start, end - start); - mac = crypto_alloc_ahash(mac_alg, 0, 0); + mac = crypto_alloc_ahash(mac_alg, 0, CRYPTO_ALG_ALLOCATES_MEMORY); kfree(mac_alg); if (IS_ERR(mac)) -- 2.27.0