diff options
| -rw-r--r-- | lib/rsa/rsa-verify.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/rsa/rsa-verify.c b/lib/rsa/rsa-verify.c index 1d95cfbdee..9605c37639 100644 --- a/lib/rsa/rsa-verify.c +++ b/lib/rsa/rsa-verify.c @@ -215,6 +215,8 @@ out: * @msg_len: Message length * @hash: Pointer to the expected hash * @hash_len: Length of the hash + * + * Return: 0 if padding is correct, non-zero otherwise */ int padding_pss_verify(struct image_sign_info *info, const uint8_t *msg, int msg_len, @@ -234,6 +236,9 @@ int padding_pss_verify(struct image_sign_info *info, uint8_t leftmost_mask; struct checksum_algo *checksum = info->checksum; + if (db_len <= 0) + return -EINVAL; + /* first, allocate everything */ db_mask = malloc(db_len); db = malloc(db_len); |