File openssh-8.1p1-gsissh-fix-openSUSE_Leap_15.2.patch of Package gsi-openssh

diff -Nur openssh-8.1p1.orig/auth2-gss.c openssh-8.1p1/auth2-gss.c
--- openssh-8.1p1.orig/auth2-gss.c	2020-04-30 17:38:45.264928880 +0200
+++ openssh-8.1p1/auth2-gss.c	2020-04-30 17:42:13.245790659 +0200
@@ -73,7 +73,7 @@
 		fatal("%s: %s", __func__, ssh_err(r));
 
 	if ((b = sshbuf_new()) == NULL)
-		fatal("%s: sshbuf_new failed", __func__);
+		fatal("%s: sshbuf_new failed for b", __func__);
 
 	mic.value = p;
 	mic.length = len;
@@ -85,6 +85,9 @@
 		fatal("%s: sshbuf_mutable_ptr failed", __func__);
 	gssbuf.length = sshbuf_len(b);
 
+	if ((b2 = sshbuf_new()) == NULL)
+		fatal("%s: sshbuf_new failed for b2", __func__);
+
 	/* client may have used empty username to determine target
 	   name from GSSAPI context */
 	ssh_gssapi_buildmic(b2, "", authctxt->service, "gssapi-keyex");