1 files changed, 13 insertions, 6 deletions

diff --git a/src/lib/libcrypto/ec/eck_prn.c b/src/lib/libcrypto/ec/eck_prn.c
index 9bf05bb38c..598b83835f 100644
--- a/src/lib/libcrypto/ec/eck_prn.c
+++ b/src/lib/libcrypto/ec/eck_prn.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: eck_prn.c,v 1.23 2023/07/02 13:48:47 tb Exp $ */
+/* $OpenBSD: eck_prn.c,v 1.24 2023/07/02 14:53:18 tb Exp $ */
 /*
  * Written by Nils Larsch for the OpenSSL project.
  */
@@ -203,7 +203,9 @@ ecpk_print_explicit_parameters(BIO *bp, const EC_GROUP *group, int off)
         BIGNUM *p, *a, *b, *order, *cofactor;
         BIGNUM *gen = NULL;
         const EC_POINT *generator;
-        const unsigned char *conversion, *seed;
+        const char *conversion_form;
+        char *conversion = NULL;
+        const unsigned char *seed;
         size_t seed_len;
         unsigned char *buffer = NULL;
         size_t buf_len, i;
@@ -286,13 +288,17 @@ ecpk_print_explicit_parameters(BIO *bp, const EC_GROUP *group, int off)
                 goto err;
 
         if (form == POINT_CONVERSION_COMPRESSED)
-                conversion = "Generator (compressed):";
+                conversion_form = "compressed";
         else if (form == POINT_CONVERSION_UNCOMPRESSED)
-                conversion = "Generator (uncompressed):";
+                conversion_form = "compressed";
         else if (form == POINT_CONVERSION_HYBRID)
-                conversion = "Generator (hybrid):";
+                conversion_form = "hybrid";
         else
-                conversion = "Generator (unknown):";
+                conversion_form = "unknown";
+        if (asprintf(&conversion, "Generator (%s):", conversion_form) == -1) {
+                conversion = NULL;
+                goto err;
+        }
         if (!ASN1_bn_print(bp, conversion, gen, buffer, off))
                 goto err;
 
@@ -311,6 +317,7 @@ err:
         BN_CTX_end(ctx);
         BN_CTX_free(ctx);
         free(buffer);
+        free(conversion);
 
         return ret;
 }