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-rw-r--r--source4/libcli/security/dom_sid.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/source4/libcli/security/dom_sid.c b/source4/libcli/security/dom_sid.c
index 646a513df5..b5ced9fcc2 100644
--- a/source4/libcli/security/dom_sid.c
+++ b/source4/libcli/security/dom_sid.c
@@ -157,6 +157,11 @@ struct dom_sid *dom_sid_dup(TALLOC_CTX *mem_ctx, const struct dom_sid *dom_sid)
{
struct dom_sid *ret;
int i;
+
+ if (!dom_sid) {
+ return NULL;
+ }
+
ret = talloc(mem_ctx, struct dom_sid);
if (!ret) {
return NULL;