From 0aa59111df23b38da487e4e9f9a22bd457b128a2 Mon Sep 17 00:00:00 2001
From: Mike Auty <mike.auty@gmail.com>
Date: Thu, 19 Aug 2021 23:06:55 +0100
Subject: [PATCH] Generic: YaraScanner fail on no rules

---
 volatility3/framework/plugins/yarascan.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/volatility3/framework/plugins/yarascan.py b/volatility3/framework/plugins/yarascan.py
index 3ca436210..86a7426a5 100644
--- a/volatility3/framework/plugins/yarascan.py
+++ b/volatility3/framework/plugins/yarascan.py
@@ -26,6 +26,8 @@ class YaraScanner(interfaces.layers.ScannerInterface):
     # yara.Rules isn't exposed, so we can't type this properly
     def __init__(self, rules) -> None:
         super().__init__()
+        if rules is None:
+            raise ValueError("No rules provided to YaraScanner")
         self._rules = rules
 
     def __call__(self, data: bytes, data_offset: int) -> Iterable[Tuple[int, str, str, bytes]]: