Fix return paths with missing EVP_CIPHER_CTX_cleanup() calls.

ok doug@

3 files changed, 12 insertions, 13 deletions

diff --git a/src/lib/libcrypto/cms/cms_pwri.c b/src/lib/libcrypto/cms/cms_pwri.c
index 89f7925938..11509e3c11 100644
--- a/src/lib/libcrypto/cms/cms_pwri.c
+++ b/src/lib/libcrypto/cms/cms_pwri.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: cms_pwri.c,v 1.8 2014/10/22 13:02:04 jsing Exp $ */
+/* $OpenBSD: cms_pwri.c,v 1.9 2015/05/15 11:00:14 jsg Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project.
  */
@@ -332,14 +332,14 @@ cms_RecipientInfo_pwri_crypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri,
 
         if (!pwri->pass) {
                 CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, CMS_R_NO_PASSWORD);
-                return 0;
+                goto err;
         }
         algtmp = pwri->keyEncryptionAlgorithm;
 
         if (!algtmp || OBJ_obj2nid(algtmp->algorithm) != NID_id_alg_PWRI_KEK) {
                 CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,
                     CMS_R_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM);
-                return 0;
+                goto err;
         }
 
         if (algtmp->parameter->type == V_ASN1_SEQUENCE) {
@@ -350,7 +350,7 @@ cms_RecipientInfo_pwri_crypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri,
         if (kekalg == NULL) {
                 CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,
                     CMS_R_INVALID_KEY_ENCRYPTION_PARAMETER);
-                return 0;
+                goto err;
         }
 
         kekcipher = EVP_get_cipherbyobj(kekalg->algorithm);
diff --git a/src/lib/libcrypto/pem/pvkfmt.c b/src/lib/libcrypto/pem/pvkfmt.c
index 2009c9db80..025381bcc0 100644
--- a/src/lib/libcrypto/pem/pvkfmt.c
+++ b/src/lib/libcrypto/pem/pvkfmt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pvkfmt.c,v 1.12 2014/10/22 13:02:04 jsing Exp $ */
+/* $OpenBSD: pvkfmt.c,v 1.13 2015/05/15 11:00:14 jsg Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2005.
  */
@@ -731,17 +731,16 @@ do_PVK_body(const unsigned char **in, unsigned int saltlen,
                         inlen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
                 if (inlen <= 0) {
                         PEMerr(PEM_F_DO_PVK_BODY, PEM_R_BAD_PASSWORD_READ);
-                        return NULL;
+                        goto err;
                 }
                 enctmp = malloc(keylen + 8);
                 if (!enctmp) {
                         PEMerr(PEM_F_DO_PVK_BODY, ERR_R_MALLOC_FAILURE);
-                        return NULL;
+                        goto err;
                 }
                 if (!derive_pvk_key(keybuf, p, saltlen, (unsigned char *)psbuf,
                     inlen)) {
-                        free(enctmp);
-                        return NULL;
+                        goto err;
                 }
                 p += saltlen;
                 /* Copy BLOBHEADER across, decrypt rest */
@@ -749,8 +748,7 @@ do_PVK_body(const unsigned char **in, unsigned int saltlen,
                 p += 8;
                 if (keylen < 8) {
                         PEMerr(PEM_F_DO_PVK_BODY, PEM_R_PVK_TOO_SHORT);
-                        free(enctmp);
-                        return NULL;
+                        goto err;
                 }
                 inlen = keylen - 8;
                 q = enctmp + 8;
diff --git a/src/lib/libcrypto/pkcs12/p12_decr.c b/src/lib/libcrypto/pkcs12/p12_decr.c
index 13be237b4c..4cccf43d3f 100644
--- a/src/lib/libcrypto/pkcs12/p12_decr.c
+++ b/src/lib/libcrypto/pkcs12/p12_decr.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: p12_decr.c,v 1.14 2015/02/14 12:43:07 miod Exp $ */
+/* $OpenBSD: p12_decr.c,v 1.15 2015/05/15 11:00:14 jsg Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 1999.
  */
@@ -77,9 +77,10 @@ PKCS12_pbe_crypt(X509_ALGOR *algor, const char *pass, int passlen,
         /* Decrypt data */
         if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen,
             algor->parameter, &ctx, en_de)) {
+                out = NULL;
                 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,
                     PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR);
-                return NULL;
+                goto err;
         }
 
         if (!(out = malloc(inlen + EVP_CIPHER_CTX_block_size(&ctx)))) {