[v3,2/4] crypto: qat - validate xts key

Message ID 20200629171620.2989-3-giovanni.cabiddu@intel.com
State Superseded
Headers show
Series
  • crypto: qat - fixes to aes xts
Related show

Commit Message

Giovanni Cabiddu June 29, 2020, 5:16 p.m.
Validate AES-XTS key using the function xts_verify_key() to prevent
malformed keys.

Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
---
 drivers/crypto/qat/qat_common/qat_algs.c | 6 ++++++
 1 file changed, 6 insertions(+)

Patch

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);
 }