LibELF: Prevent negative index when determining dynamic symbol count

2026-01-04 15:45:25 +00:00 · 2024-03-14 19:04:29 +01:00
parent a90e876667
commit c87e1084b6
1 changed files with 5 additions and 0 deletions
--- 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) {