From f17629a4eb4d183fbec7d83ca0cf74107b04889a Mon Sep 17 00:00:00 2001
From: Willi Ballenthin <wballenthin@hex-rays.com>
Date: Wed, 22 Apr 2026 09:47:14 +0300
Subject: [PATCH] fix: freeze/__init__.py: NO_ADDRESS < NO_ADDRESS returns True

Closes #3025
---
 CHANGELOG.md                     | 2 ++
 capa/features/freeze/__init__.py | 2 +-
 tests/test_freeze_static.py      | 5 +++++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1f6ac984..fd1cd9aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,6 +36,8 @@
 
 - fix: base_extractor.py: __metaclass__ is Python 2 syntax, ignored in Py3 @williballenthin #3024
 
+- fix: freeze/__init__.py: NO_ADDRESS < NO_ADDRESS returns True @williballenthin #3025
+
 ### capa Explorer Web
 
 ### capa Explorer IDA Pro plugin
diff --git a/capa/features/freeze/__init__.py b/capa/features/freeze/__init__.py
index 57df23b2..5ea45253 100644
--- a/capa/features/freeze/__init__.py
+++ b/capa/features/freeze/__init__.py
@@ -173,7 +173,7 @@ class Address(HashableModel):
             return self.type < other.type
 
         if self.type is AddressType.NO_ADDRESS:
-            return True
+            return False
 
         else:
             assert self.type == other.type
diff --git a/tests/test_freeze_static.py b/tests/test_freeze_static.py
index 00cb02be..16003fce 100644
--- a/tests/test_freeze_static.py
+++ b/tests/test_freeze_static.py
@@ -165,6 +165,11 @@ def test_serialize_features():
     roundtrip_feature(capa.features.insn.Property("System.IO.FileInfo::Length"))
 
 
+def test_no_address_lt_irreflexivity():
+    no_addr = capa.features.freeze.Address.from_capa(capa.features.address.NO_ADDRESS)
+    assert not (no_addr < no_addr)
+
+
 def test_freeze_sample(tmpdir, z9324d_extractor):
     # tmpdir fixture handles cleanup
     o = tmpdir.mkdir("capa").join("test.frz").strpath