From 73ee7aa3a108dfa617cd70d3d4c5a0698ed8c7e2 Mon Sep 17 00:00:00 2001
From: Jeremy Rifkin <51220084+jeremy-rifkin@users.noreply.github.com>
Date: Tue, 28 Jan 2025 22:21:43 -0600
Subject: [PATCH] Don't try to load string table if strtab_link is SHN_UNDEF or
 the symbol table is empty

---
 src/binary/elf.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/binary/elf.cpp b/src/binary/elf.cpp
index 62f1f0f..173ba2b 100644
--- a/src/binary/elf.cpp
+++ b/src/binary/elf.cpp
@@ -91,7 +91,11 @@ namespace detail {
     std::string elf::lookup_symbol(frame_ptr pc) {
         // TODO: Also search the SHT_DYNSYM at some point, maybe
         auto symtab_ = get_symtab();
-        if(symtab_.is_error()) {
+        if(
+            symtab_.is_error()
+            || symtab_.unwrap_value().strtab_link == SHN_UNDEF
+            || symtab_.unwrap_value().entries.empty()
+        ) {
             return "";
         }
         auto& symtab = symtab_.unwrap_value();