diff options
Diffstat (limited to 'src/libcrypto.c')
| -rw-r--r-- | src/libcrypto.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/libcrypto.c b/src/libcrypto.c index b3792264..e9f519ec 100644 --- a/src/libcrypto.c +++ b/src/libcrypto.c @@ -713,8 +713,12 @@ aes_ctr_encrypt(struct ssh_cipher_struct *cipher, } static void aes_ctr_cleanup(struct ssh_cipher_struct *cipher){ - explicit_bzero(cipher->aes_key, sizeof(*cipher->aes_key)); - SAFE_FREE(cipher->aes_key); + if (cipher != NULL) { + if (cipher->aes_key != NULL) { + explicit_bzero(cipher->aes_key, sizeof(*cipher->aes_key)); + } + SAFE_FREE(cipher->aes_key); + } } #endif /* HAVE_OPENSSL_EVP_AES_CTR */ |