================
@@ -369,6 +380,9 @@ ProgramStateRef 
UnixAPIMisuseChecker::EnsureGetdelimBufferAndSizeCorrect(
 
 void UnixAPIMisuseChecker::CheckGetDelim(CheckerContext &C,
                                          const CallEvent &Call) const {
+  if (Call.getNumArgs() < 2)
+    return;
----------------
steakhal wrote:

Why don't we check `!= 4` here? By judging the function name we should only 
accept the `getdelim` function that has 4 parameters (thus arguments).

https://github.com/llvm/llvm-project/pull/145229
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