From: Joseph Sutton <josephsutton@catalyst.net.nz>
Date: Fri, 11 Aug 2023 00:15:05 +0000 (+1200)
Subject: s4:kdc: Ensure that we don’t dereference a NULL pointer
X-Git-Tag: tevent-0.16.0~972
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e6b78ef7f7ef2d9fc16aee3f7edfc31163fdf284;p=thirdparty%2Fsamba.git

s4:kdc: Ensure that we don’t dereference a NULL pointer

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
---

diff --git a/source4/kdc/ad_claims.c b/source4/kdc/ad_claims.c
index 15b2efdf26f..714f5484af5 100644
--- a/source4/kdc/ad_claims.c
+++ b/source4/kdc/ad_claims.c
@@ -689,6 +689,10 @@ static NTSTATUS encode_claims_set(TALLOC_CTX *mem_ctx,
 	struct CLAIMS_SET_METADATA *metadata = NULL;
 	struct CLAIMS_SET_METADATA_NDR *metadata_ndr = NULL;
 
+	if (claims_blob == NULL) {
+		return NT_STATUS_INVALID_PARAMETER_3;
+	}
+
 	tmp_ctx = talloc_new(mem_ctx);
 	if (tmp_ctx == NULL) {
 		return NT_STATUS_NO_MEMORY;