diff --git a/src/core/libraries/kernel/process.cpp b/src/core/libraries/kernel/process.cpp
index 3a747bf16..58628867a 100644
--- a/src/core/libraries/kernel/process.cpp
+++ b/src/core/libraries/kernel/process.cpp
@@ -75,6 +75,9 @@ s32 PS4_SYSV_ABI sceKernelLoadStartModule(const char* moduleFileName, size_t arg
 s32 PS4_SYSV_ABI sceKernelDlsym(s32 handle, const char* symbol, void** addrp) {
     auto* linker = Common::Singleton<Core::Linker>::Instance();
     auto* module = linker->GetModule(handle);
+    if (module == nullptr) {
+        return ORBIS_KERNEL_ERROR_ESRCH;
+    }
     *addrp = module->FindByName(symbol);
     if (*addrp == nullptr) {
         return ORBIS_KERNEL_ERROR_ESRCH;
diff --git a/src/core/linker.h b/src/core/linker.h
index 357b39664..9c07400c4 100644
--- a/src/core/linker.h
+++ b/src/core/linker.h
@@ -83,7 +83,10 @@ public:
     }
 
     Module* GetModule(s32 index) const {
-        return m_modules.at(index).get();
+        if (index >= 0 || index < m_modules.size()) {
+            return m_modules.at(index).get();
+        }
+        return nullptr;
     }
 
     u32 FindByName(const std::filesystem::path& name) const {