From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A2B61D12EA; Tue, 8 Oct 2024 12:15:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728389717; cv=none; b=A0QtyIA4uiXUuliRjL1xe2GSrsiE2iWHRw5V6x9zaYtqzKS0dYPXtuPcIrCrd1z28Akkepgu9GjgTuLRuykO7nmvst+m5lRqEzuly5mfCkHSWbNpEa5xOa+LLFZ64ZhF9x+HQTe8tO3Wch7FDQK5ucKViZ2ti0gppIhskmiOCEo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728389717; c=relaxed/simple; bh=jvfbHStrSapmaECERHARljlu/PzXO/+c5ljIbTH/4kA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=naGfFLKjutQ8/X9wx/Cwvq2sq6vCiVe+KgMLScWyztJxSoKoJDaIUzYpPrAzwSy1leb7b3DzTzA4ogacOfL2bvYLTiuRVyks8zugq33vreevolVihGXntSwgjYERyRJOR+zHl2iYmXw3WDRjtv7dciEied6ZwwcK66b8yJeULRw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=rFfY0kxY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="rFfY0kxY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DACEDC4CEC7; Tue, 8 Oct 2024 12:15:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1728389717; bh=jvfbHStrSapmaECERHARljlu/PzXO/+c5ljIbTH/4kA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rFfY0kxYD7aZfmCyWh3OofjBA/WZA56ny/dcrNFsFDVc5+7WoVKR5u5GpTA3roefE uBkf5KTLvTQIY3XppagEh1AGsBsyXTuXhut//dBUPxJOPcF9865GoXPeu5GgAA6ePB D2k9GbmEKv0sTyVBZ4CcBIS/O+4qc2pHYKJ6EIvY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Herbert Xu , Sasha Levin Subject: [PATCH 6.10 075/482] crypto: octeontx - Fix authenc setkey Date: Tue, 8 Oct 2024 14:02:18 +0200 Message-ID: <20241008115651.257794308@linuxfoundation.org> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241008115648.280954295@linuxfoundation.org> References: <20241008115648.280954295@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Herbert Xu [ Upstream commit 311eea7e37c4c0b44b557d0c100860a03b4eab65 ] Use the generic crypto_authenc_extractkeys helper instead of custom parsing code that is slightly broken. Also fix a number of memory leaks by moving memory allocation from setkey to init_tfm (setkey can be called multiple times over the life of a tfm). Finally accept all hash key lengths by running the digest over extra-long keys. Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- .../crypto/marvell/octeontx/otx_cptvf_algs.c | 261 +++++++----------- 1 file changed, 93 insertions(+), 168 deletions(-) diff --git a/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c b/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c index 3c5d577d8f0d5..0a1b85ad0057f 100644 --- a/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c +++ b/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include "otx_cptvf.h" @@ -66,6 +65,8 @@ static struct cpt_device_table ae_devices = { .count = ATOMIC_INIT(0) }; +static struct otx_cpt_sdesc *alloc_sdesc(struct crypto_shash *alg); + static inline int get_se_device(struct pci_dev **pdev, int *cpu_num) { int count, ret = 0; @@ -509,44 +510,61 @@ static int cpt_aead_init(struct crypto_aead *tfm, u8 cipher_type, u8 mac_type) ctx->cipher_type = cipher_type; ctx->mac_type = mac_type; + switch (ctx->mac_type) { + case OTX_CPT_SHA1: + ctx->hashalg = crypto_alloc_shash("sha1", 0, 0); + break; + + case OTX_CPT_SHA256: + ctx->hashalg = crypto_alloc_shash("sha256", 0, 0); + break; + + case OTX_CPT_SHA384: + ctx->hashalg = crypto_alloc_shash("sha384", 0, 0); + break; + + case OTX_CPT_SHA512: + ctx->hashalg = crypto_alloc_shash("sha512", 0, 0); + break; + } + + if (IS_ERR(ctx->hashalg)) + return PTR_ERR(ctx->hashalg); + + crypto_aead_set_reqsize_dma(tfm, sizeof(struct otx_cpt_req_ctx)); + + if (!ctx->hashalg) + return 0; + /* * When selected cipher is NULL we use HMAC opcode instead of * FLEXICRYPTO opcode therefore we don't need to use HASH algorithms * for calculating ipad and opad */ if (ctx->cipher_type != OTX_CPT_CIPHER_NULL) { - switch (ctx->mac_type) { - case OTX_CPT_SHA1: - ctx->hashalg = crypto_alloc_shash("sha1", 0, - CRYPTO_ALG_ASYNC); - if (IS_ERR(ctx->hashalg)) - return PTR_ERR(ctx->hashalg); - break; - - case OTX_CPT_SHA256: - ctx->hashalg = crypto_alloc_shash("sha256", 0, - CRYPTO_ALG_ASYNC); - if (IS_ERR(ctx->hashalg)) - return PTR_ERR(ctx->hashalg); - break; + int ss = crypto_shash_statesize(ctx->hashalg); - case OTX_CPT_SHA384: - ctx->hashalg = crypto_alloc_shash("sha384", 0, - CRYPTO_ALG_ASYNC); - if (IS_ERR(ctx->hashalg)) - return PTR_ERR(ctx->hashalg); - break; + ctx->ipad = kzalloc(ss, GFP_KERNEL); + if (!ctx->ipad) { + crypto_free_shash(ctx->hashalg); + return -ENOMEM; + } - case OTX_CPT_SHA512: - ctx->hashalg = crypto_alloc_shash("sha512", 0, - CRYPTO_ALG_ASYNC); - if (IS_ERR(ctx->hashalg)) - return PTR_ERR(ctx->hashalg); - break; + ctx->opad = kzalloc(ss, GFP_KERNEL); + if (!ctx->opad) { + kfree(ctx->ipad); + crypto_free_shash(ctx->hashalg); + return -ENOMEM; } } - crypto_aead_set_reqsize_dma(tfm, sizeof(struct otx_cpt_req_ctx)); + ctx->sdesc = alloc_sdesc(ctx->hashalg); + if (!ctx->sdesc) { + kfree(ctx->opad); + kfree(ctx->ipad); + crypto_free_shash(ctx->hashalg); + return -ENOMEM; + } return 0; } @@ -602,8 +620,7 @@ static void otx_cpt_aead_exit(struct crypto_aead *tfm) kfree(ctx->ipad); kfree(ctx->opad); - if (ctx->hashalg) - crypto_free_shash(ctx->hashalg); + crypto_free_shash(ctx->hashalg); kfree(ctx->sdesc); } @@ -699,7 +716,7 @@ static inline void swap_data64(void *buf, u32 len) *dst = cpu_to_be64p(src); } -static int copy_pad(u8 mac_type, u8 *out_pad, u8 *in_pad) +static int swap_pad(u8 mac_type, u8 *pad) { struct sha512_state *sha512; struct sha256_state *sha256; @@ -707,22 +724,19 @@ static int copy_pad(u8 mac_type, u8 *out_pad, u8 *in_pad) switch (mac_type) { case OTX_CPT_SHA1: - sha1 = (struct sha1_state *) in_pad; + sha1 = (struct sha1_state *)pad; swap_data32(sha1->state, SHA1_DIGEST_SIZE); - memcpy(out_pad, &sha1->state, SHA1_DIGEST_SIZE); break; case OTX_CPT_SHA256: - sha256 = (struct sha256_state *) in_pad; + sha256 = (struct sha256_state *)pad; swap_data32(sha256->state, SHA256_DIGEST_SIZE); - memcpy(out_pad, &sha256->state, SHA256_DIGEST_SIZE); break; case OTX_CPT_SHA384: case OTX_CPT_SHA512: - sha512 = (struct sha512_state *) in_pad; + sha512 = (struct sha512_state *)pad; swap_data64(sha512->state, SHA512_DIGEST_SIZE); - memcpy(out_pad, &sha512->state, SHA512_DIGEST_SIZE); break; default: @@ -732,55 +746,53 @@ static int copy_pad(u8 mac_type, u8 *out_pad, u8 *in_pad) return 0; } -static int aead_hmac_init(struct crypto_aead *cipher) +static int aead_hmac_init(struct crypto_aead *cipher, + struct crypto_authenc_keys *keys) { struct otx_cpt_aead_ctx *ctx = crypto_aead_ctx_dma(cipher); - int state_size = crypto_shash_statesize(ctx->hashalg); int ds = crypto_shash_digestsize(ctx->hashalg); int bs = crypto_shash_blocksize(ctx->hashalg); - int authkeylen = ctx->auth_key_len; + int authkeylen = keys->authkeylen; u8 *ipad = NULL, *opad = NULL; - int ret = 0, icount = 0; + int icount = 0; + int ret; - ctx->sdesc = alloc_sdesc(ctx->hashalg); - if (!ctx->sdesc) - return -ENOMEM; + if (authkeylen > bs) { + ret = crypto_shash_digest(&ctx->sdesc->shash, keys->authkey, + authkeylen, ctx->key); + if (ret) + return ret; + authkeylen = ds; + } else + memcpy(ctx->key, keys->authkey, authkeylen); - ctx->ipad = kzalloc(bs, GFP_KERNEL); - if (!ctx->ipad) { - ret = -ENOMEM; - goto calc_fail; - } + ctx->enc_key_len = keys->enckeylen; + ctx->auth_key_len = authkeylen; - ctx->opad = kzalloc(bs, GFP_KERNEL); - if (!ctx->opad) { - ret = -ENOMEM; - goto calc_fail; - } + if (ctx->cipher_type == OTX_CPT_CIPHER_NULL) + return keys->enckeylen ? -EINVAL : 0; - ipad = kzalloc(state_size, GFP_KERNEL); - if (!ipad) { - ret = -ENOMEM; - goto calc_fail; + switch (keys->enckeylen) { + case AES_KEYSIZE_128: + ctx->key_type = OTX_CPT_AES_128_BIT; + break; + case AES_KEYSIZE_192: + ctx->key_type = OTX_CPT_AES_192_BIT; + break; + case AES_KEYSIZE_256: + ctx->key_type = OTX_CPT_AES_256_BIT; + break; + default: + /* Invalid key length */ + return -EINVAL; } - opad = kzalloc(state_size, GFP_KERNEL); - if (!opad) { - ret = -ENOMEM; - goto calc_fail; - } + memcpy(ctx->key + authkeylen, keys->enckey, keys->enckeylen); - if (authkeylen > bs) { - ret = crypto_shash_digest(&ctx->sdesc->shash, ctx->key, - authkeylen, ipad); - if (ret) - goto calc_fail; - - authkeylen = ds; - } else { - memcpy(ipad, ctx->key, authkeylen); - } + ipad = ctx->ipad; + opad = ctx->opad; + memcpy(ipad, ctx->key, authkeylen); memset(ipad + authkeylen, 0, bs - authkeylen); memcpy(opad, ipad, bs); @@ -798,7 +810,7 @@ static int aead_hmac_init(struct crypto_aead *cipher) crypto_shash_init(&ctx->sdesc->shash); crypto_shash_update(&ctx->sdesc->shash, ipad, bs); crypto_shash_export(&ctx->sdesc->shash, ipad); - ret = copy_pad(ctx->mac_type, ctx->ipad, ipad); + ret = swap_pad(ctx->mac_type, ipad); if (ret) goto calc_fail; @@ -806,25 +818,9 @@ static int aead_hmac_init(struct crypto_aead *cipher) crypto_shash_init(&ctx->sdesc->shash); crypto_shash_update(&ctx->sdesc->shash, opad, bs); crypto_shash_export(&ctx->sdesc->shash, opad); - ret = copy_pad(ctx->mac_type, ctx->opad, opad); - if (ret) - goto calc_fail; - - kfree(ipad); - kfree(opad); - - return 0; + ret = swap_pad(ctx->mac_type, opad); calc_fail: - kfree(ctx->ipad); - ctx->ipad = NULL; - kfree(ctx->opad); - ctx->opad = NULL; - kfree(ipad); - kfree(opad); - kfree(ctx->sdesc); - ctx->sdesc = NULL; - return ret; } @@ -832,57 +828,15 @@ static int otx_cpt_aead_cbc_aes_sha_setkey(struct crypto_aead *cipher, const unsigned char *key, unsigned int keylen) { - struct otx_cpt_aead_ctx *ctx = crypto_aead_ctx_dma(cipher); - struct crypto_authenc_key_param *param; - int enckeylen = 0, authkeylen = 0; - struct rtattr *rta = (void *)key; - int status = -EINVAL; - - if (!RTA_OK(rta, keylen)) - goto badkey; - - if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM) - goto badkey; - - if (RTA_PAYLOAD(rta) < sizeof(*param)) - goto badkey; - - param = RTA_DATA(rta); - enckeylen = be32_to_cpu(param->enckeylen); - key += RTA_ALIGN(rta->rta_len); - keylen -= RTA_ALIGN(rta->rta_len); - if (keylen < enckeylen) - goto badkey; + struct crypto_authenc_keys authenc_keys; + int status; - if (keylen > OTX_CPT_MAX_KEY_SIZE) - goto badkey; - - authkeylen = keylen - enckeylen; - memcpy(ctx->key, key, keylen); - - switch (enckeylen) { - case AES_KEYSIZE_128: - ctx->key_type = OTX_CPT_AES_128_BIT; - break; - case AES_KEYSIZE_192: - ctx->key_type = OTX_CPT_AES_192_BIT; - break; - case AES_KEYSIZE_256: - ctx->key_type = OTX_CPT_AES_256_BIT; - break; - default: - /* Invalid key length */ - goto badkey; - } - - ctx->enc_key_len = enckeylen; - ctx->auth_key_len = authkeylen; - - status = aead_hmac_init(cipher); + status = crypto_authenc_extractkeys(&authenc_keys, key, keylen); if (status) goto badkey; - return 0; + status = aead_hmac_init(cipher, &authenc_keys); + badkey: return status; } @@ -891,36 +845,7 @@ static int otx_cpt_aead_ecb_null_sha_setkey(struct crypto_aead *cipher, const unsigned char *key, unsigned int keylen) { - struct otx_cpt_aead_ctx *ctx = crypto_aead_ctx_dma(cipher); - struct crypto_authenc_key_param *param; - struct rtattr *rta = (void *)key; - int enckeylen = 0; - - if (!RTA_OK(rta, keylen)) - goto badkey; - - if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM) - goto badkey; - - if (RTA_PAYLOAD(rta) < sizeof(*param)) - goto badkey; - - param = RTA_DATA(rta); - enckeylen = be32_to_cpu(param->enckeylen); - key += RTA_ALIGN(rta->rta_len); - keylen -= RTA_ALIGN(rta->rta_len); - if (enckeylen != 0) - goto badkey; - - if (keylen > OTX_CPT_MAX_KEY_SIZE) - goto badkey; - - memcpy(ctx->key, key, keylen); - ctx->enc_key_len = enckeylen; - ctx->auth_key_len = keylen; - return 0; -badkey: - return -EINVAL; + return otx_cpt_aead_cbc_aes_sha_setkey(cipher, key, keylen); } static int otx_cpt_aead_gcm_aes_setkey(struct crypto_aead *cipher, -- 2.43.0