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authorGiovanni Cabiddu <giovanni.cabiddu@intel.com>2020-06-29 18:16:18 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2020-07-09 18:25:15 +1000
commitb185a68710e074eeaffb595a31f9bb617c2aa890 (patch)
treee5891f17ca017245bf87e6468f99cd83aea56f2d /drivers/crypto/qat
parent528f776df67c440361b2847b4da400d8754bf030 (diff)
crypto: qat - validate xts key
Validate AES-XTS key using the function xts_verify_key() to prevent malformed keys. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/qat')
-rw-r--r--drivers/crypto/qat/qat_common/qat_algs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c
index 6bea6f868395..11f36eafda0c 100644
--- a/drivers/crypto/qat/qat_common/qat_algs.c
+++ b/drivers/crypto/qat/qat_common/qat_algs.c
@@ -995,6 +995,12 @@ static int qat_alg_skcipher_ctr_setkey(struct crypto_skcipher *tfm,
static int qat_alg_skcipher_xts_setkey(struct crypto_skcipher *tfm,
const u8 *key, unsigned int keylen)
{
+ int ret;
+
+ ret = xts_verify_key(tfm, key, keylen);
+ if (ret)
+ return ret;
+
return qat_alg_skcipher_setkey(tfm, key, keylen,
ICP_QAT_HW_CIPHER_XTS_MODE);
}