From c87e1084b6cca5ea44951e1fbddd3eeb4b213b2a Mon Sep 17 00:00:00 2001
From: Ollrogge <nils-ollrogge@outlook.de>
Date: Thu, 14 Mar 2024 19:04:29 +0100
Subject: [PATCH] LibELF: Prevent negative index when determining dynamic
 symbol count

---
 Userland/Libraries/LibELF/DynamicObject.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Userland/Libraries/LibELF/DynamicObject.cpp b/Userland/Libraries/LibELF/DynamicObject.cpp
index efa7ef683e..849507fe6d 100644
--- a/Userland/Libraries/LibELF/DynamicObject.cpp
+++ b/Userland/Libraries/LibELF/DynamicObject.cpp
@@ -242,6 +242,11 @@ void DynamicObject::parse()
         }
     }
 
+    if (highest_chain_idx < num_omitted_symbols) {
+        m_symbol_count = 0;
+        return;
+    }
+
     size_t amount_symbols = highest_chain_idx;
     u32 const* last_chain = &chains[highest_chain_idx - num_omitted_symbols];
     while ((*(last_chain++) & 1) == 0) {