From c3b894155f7698c1e5a0a796527258f38e07179a Mon Sep 17 00:00:00 2001 From: Sunil Kumar Kori Date: Thu, 5 Apr 2018 14:05:49 +0530 Subject: [PATCH] crypto/dpaa2_sec: improve error handling Fixed as reported by NXP's internal coverity. Also part of dpdk coverity. Coverity issue: 268331 Coverity issue: 268333 Fixes: 8d1f3a5d751b ("crypto/dpaa2_sec: support crypto operation") Cc: stable@dpdk.org Signed-off-by: Sunil Kumar Kori Acked-by: Akhil Goyal --- drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 27 ++++++++++++++++++--- 1 file changed, 23 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c index c484e367ca..58cbce8685 100644 --- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c +++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c @@ -1630,7 +1630,7 @@ dpaa2_sec_auth_init(struct rte_cryptodev *dev, { struct dpaa2_sec_dev_private *dev_priv = dev->data->dev_private; struct alginfo authdata; - unsigned int bufsize, i; + int bufsize, i; struct ctxt_priv *priv; struct sec_flow_context *flc; @@ -1726,6 +1726,10 @@ dpaa2_sec_auth_init(struct rte_cryptodev *dev, bufsize = cnstr_shdsc_hmac(priv->flc_desc[DESC_INITFINAL].desc, 1, 0, &authdata, !session->dir, session->digest_length); + if (bufsize < 0) { + DPAA2_SEC_ERR("Crypto: Invalid buffer length"); + goto error_out; + } flc->word1_sdl = (uint8_t)bufsize; flc->word2_rflc_31_0 = lower_32_bits( @@ -1756,7 +1760,7 @@ dpaa2_sec_aead_init(struct rte_cryptodev *dev, struct dpaa2_sec_aead_ctxt *ctxt = &session->ext_params.aead_ctxt; struct dpaa2_sec_dev_private *dev_priv = dev->data->dev_private; struct alginfo aeaddata; - unsigned int bufsize, i; + int bufsize, i; struct ctxt_priv *priv; struct sec_flow_context *flc; struct rte_crypto_aead_xform *aead_xform = &xform->aead; @@ -1847,6 +1851,11 @@ dpaa2_sec_aead_init(struct rte_cryptodev *dev, priv->flc_desc[0].desc, 1, 0, &aeaddata, session->iv.length, session->digest_length); + if (bufsize < 0) { + DPAA2_SEC_ERR("Crypto: Invalid buffer length"); + goto error_out; + } + flc->word1_sdl = (uint8_t)bufsize; flc->word2_rflc_31_0 = lower_32_bits( (size_t)&(((struct dpaa2_sec_qp *) @@ -1876,7 +1885,7 @@ dpaa2_sec_aead_chain_init(struct rte_cryptodev *dev, struct dpaa2_sec_aead_ctxt *ctxt = &session->ext_params.aead_ctxt; struct dpaa2_sec_dev_private *dev_priv = dev->data->dev_private; struct alginfo authdata, cipherdata; - unsigned int bufsize, i; + int bufsize, i; struct ctxt_priv *priv; struct sec_flow_context *flc; struct rte_crypto_cipher_xform *cipher_xform; @@ -2068,6 +2077,10 @@ dpaa2_sec_aead_chain_init(struct rte_cryptodev *dev, ctxt->auth_only_len, session->digest_length, session->dir); + if (bufsize < 0) { + DPAA2_SEC_ERR("Crypto: Invalid buffer length"); + goto error_out; + } } else { DPAA2_SEC_ERR("Hash before cipher not supported"); goto error_out; @@ -2159,7 +2172,7 @@ dpaa2_sec_set_ipsec_session(struct rte_cryptodev *dev, struct ipsec_encap_pdb encap_pdb; struct ipsec_decap_pdb decap_pdb; struct alginfo authdata, cipherdata; - unsigned int bufsize; + int bufsize; struct sec_flow_context *flc; PMD_INIT_FUNC_TRACE(); @@ -2349,6 +2362,12 @@ dpaa2_sec_set_ipsec_session(struct rte_cryptodev *dev, 1, 0, &decap_pdb, &cipherdata, &authdata); } else goto out; + + if (bufsize < 0) { + DPAA2_SEC_ERR("Crypto: Invalid buffer length"); + goto out; + } + flc->word1_sdl = (uint8_t)bufsize; /* Enable the stashing control bit */ -- 2.20.1