Double free in i2o_ECPublicKey

PR: 3338

diff --git a/crypto/ec/ec_asn1.c b/crypto/ec/ec_asn1.c
index ae555398594b8e6c02bd554015853000efeff744..0fb5c1407625f86c1754f496ba2e4f7abcdf97fc 100644 (file)
--- a/crypto/ec/ec_asn1.c
+++ b/crypto/ec/ec_asn1.c
@@ -1419,8 +1419,11 @@ int i2o_ECPublicKey(EC_KEY *a, unsigned char **out)
                                *out, buf_len, NULL))
                {
                ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_EC_LIB);
-               OPENSSL_free(*out);
-               *out = NULL;
+               if (new_buffer)
+                       {
+                       OPENSSL_free(*out);
+                       *out = NULL;
+                       }
                return 0;
                }
        if (!new_buffer)