From 9c7f865b6d92f45c761663cbbc8e696fc5ae4c64 Mon Sep 17 00:00:00 2001
From: Alaeddine Mesbahi <alaeddine.mesbahi@ostorlab.dev>
Date: Wed, 21 Aug 2024 11:08:03 +0100
Subject: [PATCH] Fix crash in nmap OS crash.

---
 agent/nmap_agent.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/agent/nmap_agent.py b/agent/nmap_agent.py
index e1bcf9bd..799de9a9 100644
--- a/agent/nmap_agent.py
+++ b/agent/nmap_agent.py
@@ -381,6 +381,13 @@ def _emit_fingerprints(
                     if isinstance(os_match, list):
                         if len(os_match) > 0:
                             os_match_highest = os_match[0]
+                            if (
+                                isinstance(os_match_highest, list)
+                                and len(os_match_highest) > 0
+                            ):
+                                os_match_highest = os_match_highest[0]
+                            else:
+                                continue
                         else:
                             continue
                     elif isinstance(os_match, dict):