santa-driver: fix off-by-one bug in externalMethod

google · Apr 7, 2020 · 4e405be · 4e405be
1 parent 854a7c2
commit 4e405be
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Source/santa_driver/SantaDriverClient.cc b/Source/santa_driver/SantaDriverClient.cc
@@ -293,7 +293,7 @@ IOReturn SantaDriverClient::externalMethod(
     { &SantaDriverClient::filemod_prefix_filter_reset, 0, 0, 0, 0 },
   };
 
-  if (selector > static_cast<UInt32>(kSantaUserClientNMethods)) {
+  if (selector >= static_cast<UInt32>(kSantaUserClientNMethods)) {
     return kIOReturnBadArgument;
   }