X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fp5_crpt.c;h=7ecfa8dad97a43615c2b6b13049ac18ecbb832b8;hp=9c6e07b706ef07c8b8427141c3e5a535cc21d2b5;hb=0eab41fb78cf4d7c76e563fd677ab6c32fc28bb0;hpb=2e5975285e2b65261ce780fa3f5744277b66db34

diff --git a/crypto/evp/p5_crpt.c b/crypto/evp/p5_crpt.c
index 9c6e07b706..7ecfa8dad9 100644
--- a/crypto/evp/p5_crpt.c
+++ b/crypto/evp/p5_crpt.c
@@ -81,6 +81,7 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
 	int saltlen, iter;
 	unsigned char *salt;
 	const unsigned char *pbuf;
+	int mdsize;
 
 	/* Extract useful info from parameter */
 	if (param == NULL || param->type != V_ASN1_SEQUENCE ||
@@ -109,9 +110,12 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
 	EVP_DigestUpdate(&ctx, salt, saltlen);
 	PBEPARAM_free(pbe);
 	EVP_DigestFinal_ex(&ctx, md_tmp, NULL);
+	mdsize = EVP_MD_size(md);
+	if (mdsize < 0)
+	    return 0;
 	for (i = 1; i < iter; i++) {
 		EVP_DigestInit_ex(&ctx, md, NULL);
-		EVP_DigestUpdate(&ctx, md_tmp, EVP_MD_size(md));
+		EVP_DigestUpdate(&ctx, md_tmp, mdsize);
 		EVP_DigestFinal_ex (&ctx, md_tmp, NULL);
 	}
 	EVP_MD_CTX_cleanup(&ctx);