binja: fix crash in binja feature extraction when MLIL is unavailable. Fix https://github.com/mandiant/capa/issues/2714

CHANGELOG.md

@@ -31,6 +31,8 @@
 
 ### Bug Fixes
 
+- binja: fix a crash during feature extraction when the MLIL is unavaiable @xusheng6 #2714 
+
 ### capa Explorer Web
 
 ### capa Explorer IDA Pro plugin

capa/features/extractors/binja/function.py

@@ -19,7 +19,6 @@ from binaryninja import (
     Function,
     BinaryView,
     SymbolType,
-    ILException,
     RegisterValueType,
     VariableSourceType,
     LowLevelILOperation,
@@ -192,9 +191,8 @@ def extract_stackstring(fh: FunctionHandle):
     if bv is None:
         return
 
-    try:
     mlil = func.mlil
-    except ILException:
+    if mlil is None:
         return
 
     for block in mlil.basic_blocks: