1 files changed, 8 insertions, 4 deletions
diff --git a/freebsd/crypto/openssl/crypto/asn1/a_digest.c b/freebsd/crypto/openssl/crypto/asn1/a_digest.c
index 6c3fc0ea..fbbe17f7 100644
--- a/freebsd/crypto/openssl/crypto/asn1/a_digest.c
+++ b/freebsd/crypto/openssl/crypto/asn1/a_digest.c
@@ -25,18 +25,22 @@
 int ASN1_digest(i2d_of_void *i2d, const EVP_MD *type, char *data,
                 unsigned char *md, unsigned int *len)
 {
-    int i;
+    int inl;
     unsigned char *str, *p;
 
-    i = i2d(data, NULL);
-    if ((str = OPENSSL_malloc(i)) == NULL) {
+    inl = i2d(data, NULL);
+    if (inl <= 0) {
+        ASN1err(ASN1_F_ASN1_DIGEST, ERR_R_INTERNAL_ERROR);
+        return 0;
+    }
+    if ((str = OPENSSL_malloc(inl)) == NULL) {
         ASN1err(ASN1_F_ASN1_DIGEST, ERR_R_MALLOC_FAILURE);
         return 0;
     }
     p = str;
     i2d(data, &p);
 
-    if (!EVP_Digest(str, i, md, len, type, NULL)) {
+    if (!EVP_Digest(str, inl, md, len, type, NULL)) {
         OPENSSL_free(str);
         return 0;
     }