Fix memleak in EVP_DigestSignFinal/VerifyFinal.
@@ -123,8 +123,12 @@ int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
} else {
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
- if (tmp_ctx == NULL || !EVP_MD_CTX_copy_ex(tmp_ctx, ctx))
+ if (tmp_ctx == NULL)
return 0;
+ if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
+ EVP_MD_CTX_free(tmp_ctx);
+ return 0;
+ }
if (sctx)
r = tmp_ctx->pctx->pmeth->signctx(tmp_ctx->pctx,
sigret, siglen, tmp_ctx);
@@ -178,8 +182,12 @@ int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
} else {
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
- if (tmp_ctx == NULL || !EVP_MD_CTX_copy_ex(tmp_ctx, ctx))
+ if (tmp_ctx == NULL)
return -1;
+ if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
+ EVP_MD_CTX_free(tmp_ctx);
+ return -1;
+ }
if (vctx) {
r = tmp_ctx->pctx->pmeth->verifyctx(tmp_ctx->pctx,
sig, siglen, tmp_ctx);
