diff options
Diffstat (limited to 'crypto/sm2')
| -rw-r--r-- | crypto/sm2/sm2_crypt.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/sm2/sm2_crypt.c b/crypto/sm2/sm2_crypt.c index 1188abfc6b..00055a4e51 100644 --- a/crypto/sm2/sm2_crypt.c +++ b/crypto/sm2/sm2_crypt.c @@ -294,6 +294,10 @@ int sm2_decrypt(const EC_KEY *key, C2 = sm2_ctext->C2->data; C3 = sm2_ctext->C3->data; msg_len = sm2_ctext->C2->length; + if (*ptext_len < (size_t)msg_len) { + SM2err(SM2_F_SM2_DECRYPT, SM2_R_BUFFER_TOO_SMALL); + goto done; + } ctx = BN_CTX_new(); if (ctx == NULL) { |