coverity 1484912: Null pointer dereferences (NULL_RETURNS)

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15425)

diff --git a/crypto/evp/evp_fetch.c b/crypto/evp/evp_fetch.c
index e71d827d4b898b75990e65a62532396d7d6857e5..f628eb2faebc6215b433568dfd72ac95636a2bc2 100644 (file)
--- a/crypto/evp/evp_fetch.c
+++ b/crypto/evp/evp_fetch.c
@@ -504,6 +504,9 @@ char *evp_get_global_properties_str(OSSL_LIB_CTX *libctx, int loadconfig)
     char *propstr = NULL;
     size_t sz;
 
+    if (plp == NULL)
+        return OPENSSL_strdup("");
+
     sz = ossl_property_list_to_string(libctx, *plp, NULL, 0);
     if (sz == 0) {
         ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);