From b2b6599f873bd28008d8d26c073122ce363e9876 Mon Sep 17 00:00:00 2001
From: Nicolas Williams <nico@twosigma.com>
Date: Tue, 15 Sep 2020 11:26:06 -0500
Subject: [PATCH] krb5: Fix NULL deref on ENOMEM in fkt_add_entry(2)

---
 lib/krb5/keytab_file.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/krb5/keytab_file.c b/lib/krb5/keytab_file.c
index c6beae947..e5ab569a5 100644
--- a/lib/krb5/keytab_file.c
+++ b/lib/krb5/keytab_file.c
@@ -582,6 +582,10 @@ fkt_add_entry(krb5_context context,
 	    return ret;
 	}
 	sp = krb5_storage_stdio_from_fd(fd, "wb+");
+        if (sp == NULL) {
+            (void) close(fd);
+            return ret;
+        }
 	krb5_storage_set_eof_code(sp, KRB5_KT_END);
 	ret = krb5_ret_int8(sp, &pvno);
 	if(ret) {