diff --git a/src/backend/x64/exception_handler_posix.cpp b/src/backend/x64/exception_handler_posix.cpp
index e1a3b190..86b89f59 100644
--- a/src/backend/x64/exception_handler_posix.cpp
+++ b/src/backend/x64/exception_handler_posix.cpp
@@ -35,6 +35,7 @@ struct CodeBlockInfo {
 class SigHandler {
 public:
     SigHandler();
+    ~SigHandler();
 
     void AddCodeBlock(CodeBlockInfo info);
     void RemoveCodeBlock(u64 rip);
@@ -48,6 +49,8 @@ private:
 
     bool supports_fast_mem = true;
 
+    void* signal_stack_memory = nullptr;
+
     std::vector<CodeBlockInfo> code_block_infos;
     std::mutex code_block_infos_mutex;
 
@@ -62,8 +65,10 @@ SigHandler sig_handler;
 SigHandler::SigHandler() {
     constexpr size_t signal_stack_size = std::max(SIGSTKSZ, 2 * 1024 * 1024);
 
+    signal_stack_memory = std::malloc(signal_stack_size);
+
     stack_t signal_stack;
-    signal_stack.ss_sp = std::malloc(signal_stack_size);
+    signal_stack.ss_sp = signal_stack_memory;
     signal_stack.ss_size = signal_stack_size;
     signal_stack.ss_flags = 0;
     if (sigaltstack(&signal_stack, nullptr) != 0) {
@@ -91,6 +96,10 @@ SigHandler::SigHandler() {
 #endif
 }
 
+SigHandler::~SigHandler() {
+    std::free(signal_stack_memory);
+}
+
 void SigHandler::AddCodeBlock(CodeBlockInfo cbi) {
     std::lock_guard<std::mutex> guard(code_block_infos_mutex);
     if (auto iter = FindCodeBlockInfo(cbi.code_begin); iter != code_block_infos.end()) {