mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-29 01:16:26 -05:00
84 lines
2.8 KiB
Diff
84 lines
2.8 KiB
Diff
From be632ce97422dfe533944186e2f4420b87b87ad5 Mon Sep 17 00:00:00 2001
|
|
From: Oleg Matcovschi <omatcovschi@google.com>
|
|
Date: Wed, 9 Aug 2017 23:18:19 -0700
|
|
Subject: [PATCH] crypto: msm: Fix several race condition issues in crypto
|
|
drivers
|
|
|
|
Check areq before referencing, replace xchg to automic_xchg and
|
|
verify return values of set key during SHA operations.
|
|
|
|
Bug: 37284397
|
|
Signed-off-by: Brahmaji K <bkomma@codeaurora.org>
|
|
Signed-off-by: Paresh Purabhiya <ppurab@codeaurora.org>
|
|
Change-Id: I98a9541a1d3a8c8d5e974348c76b92da1d5102e6
|
|
---
|
|
drivers/crypto/msm/qce50.c | 4 ++++
|
|
drivers/crypto/msm/qcrypto.c | 14 ++++++++++----
|
|
2 files changed, 14 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/drivers/crypto/msm/qce50.c b/drivers/crypto/msm/qce50.c
|
|
index 0e017b3c0c3ff..6bd9d56b13566 100644
|
|
--- a/drivers/crypto/msm/qce50.c
|
|
+++ b/drivers/crypto/msm/qce50.c
|
|
@@ -2055,6 +2055,10 @@ static int _sha_complete(struct qce_device *pce_dev)
|
|
uint32_t status;
|
|
|
|
areq = (struct ahash_request *) pce_dev->areq;
|
|
+ if (!areq) {
|
|
+ pr_err("sha operation error. areq is NULL\n");
|
|
+ return -ENXIO;
|
|
+ }
|
|
qce_dma_unmap_sg(pce_dev->pdev, areq->src, pce_dev->src_nents,
|
|
DMA_TO_DEVICE);
|
|
memcpy(digest, (char *)(&pce_dev->ce_sps.result->auth_iv[0]),
|
|
diff --git a/drivers/crypto/msm/qcrypto.c b/drivers/crypto/msm/qcrypto.c
|
|
index 04b28a58e38bd..e64d1dd51cb5f 100644
|
|
--- a/drivers/crypto/msm/qcrypto.c
|
|
+++ b/drivers/crypto/msm/qcrypto.c
|
|
@@ -3514,6 +3514,7 @@ static int _sha1_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
|
|
unsigned int len)
|
|
{
|
|
struct qcrypto_sha_ctx *sha_ctx = crypto_tfm_ctx(&tfm->base);
|
|
+ int ret = 0;
|
|
memset(&sha_ctx->authkey[0], 0, SHA1_BLOCK_SIZE);
|
|
if (len <= SHA1_BLOCK_SIZE) {
|
|
memcpy(&sha_ctx->authkey[0], key, len);
|
|
@@ -3521,16 +3522,19 @@ static int _sha1_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
|
|
} else {
|
|
sha_ctx->alg = QCE_HASH_SHA1;
|
|
sha_ctx->diglen = SHA1_DIGEST_SIZE;
|
|
- _sha_hmac_setkey(tfm, key, len);
|
|
+ ret = _sha_hmac_setkey(tfm, key, len);
|
|
+ if (ret)
|
|
+ pr_err("SHA1 hmac setkey failed\n");
|
|
sha_ctx->authkey_in_len = SHA1_BLOCK_SIZE;
|
|
}
|
|
- return 0;
|
|
+ return ret;
|
|
}
|
|
|
|
static int _sha256_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
|
|
unsigned int len)
|
|
{
|
|
struct qcrypto_sha_ctx *sha_ctx = crypto_tfm_ctx(&tfm->base);
|
|
+ int ret = 0;
|
|
|
|
memset(&sha_ctx->authkey[0], 0, SHA256_BLOCK_SIZE);
|
|
if (len <= SHA256_BLOCK_SIZE) {
|
|
@@ -3539,11 +3543,13 @@ static int _sha256_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
|
|
} else {
|
|
sha_ctx->alg = QCE_HASH_SHA256;
|
|
sha_ctx->diglen = SHA256_DIGEST_SIZE;
|
|
- _sha_hmac_setkey(tfm, key, len);
|
|
+ ret = _sha_hmac_setkey(tfm, key, len);
|
|
+ if (ret)
|
|
+ pr_err("SHA256 hmac setkey failed\n");
|
|
sha_ctx->authkey_in_len = SHA256_BLOCK_SIZE;
|
|
}
|
|
|
|
- return 0;
|
|
+ return ret;
|
|
}
|
|
|
|
static int _sha_hmac_init_ihash(struct ahash_request *req,
|