From c10585ff2be9a931f853ab722ed207639214de7c Mon Sep 17 00:00:00 2001
From: Seonghyun Oh <seonghyunoh@gmail.com>
Date: Sat, 1 Aug 2026 20:05:51 +0900
Subject: [PATCH] Defer AnchoredSetVariable bucket allocation

---
 src/anchored_set_variable.cc | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/anchored_set_variable.cc b/src/anchored_set_variable.cc
index 4c81dab412..a0ae7d08b6 100644
--- a/src/anchored_set_variable.cc
+++ b/src/anchored_set_variable.cc
@@ -31,9 +31,7 @@ namespace modsecurity {
 AnchoredSetVariable::AnchoredSetVariable(Transaction *t,
     const std::string &name)
     : m_transaction(t),
-    m_name(name) {
-        reserve(10);
-    }
+    m_name(name) { }
 
 
 AnchoredSetVariable::~AnchoredSetVariable() {
@@ -52,6 +50,9 @@ void AnchoredSetVariable::unset() {
 
 void AnchoredSetVariable::set(const std::string &key,
     const std::string &value, size_t offset, size_t len) {
+    if (empty()) {
+        reserve(10);
+    }
     VariableValue *var = new VariableValue(&m_name, &key, &value);
     var->addOrigin(len, offset);
     emplace(key, var);
@@ -60,6 +61,9 @@ void AnchoredSetVariable::set(const std::string &key,
 
 void AnchoredSetVariable::set(const std::string &key,
     const std::string &value, size_t offset) {
+    if (empty()) {
+        reserve(10);
+    }
     VariableValue *var = new VariableValue(&m_name, &key, &value);
     var->addOrigin(value.size(), offset);
     emplace(key, var);