From 13bca933d9304e18b0491a631cad33e25d42d529 Mon Sep 17 00:00:00 2001
From: Samiul Sk <9149283+kernelshard@users.noreply.github.com>
Date: Sat, 25 Jul 2026 22:03:28 +0530
Subject: [PATCH] fix(context): fix data race on c.Keys in Copy

---
 context.go      |  3 +--
 context_test.go | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/context.go b/context.go
index 1dc730e3..62281f3d 100644
--- a/context.go
+++ b/context.go
@@ -132,9 +132,8 @@ func (c *Context) Copy() *Context {
 	cp.handlers = nil
 	cp.fullPath = c.fullPath
 
-	cKeys := c.Keys
 	c.mu.RLock()
-	cp.Keys = maps.Clone(cKeys)
+	cp.Keys = maps.Clone(c.Keys)
 	c.mu.RUnlock()
 
 	cParams := c.Params
diff --git a/context_test.go b/context_test.go
index e8d305e4..68c474cc 100644
--- a/context_test.go
+++ b/context_test.go
@@ -776,6 +776,29 @@ func TestContextCopyNilErrorsAndAccepted(t *testing.T) {
 	assert.Nil(t, cp.Accepted)
 }
 
+func TestContextCopyRace(t *testing.T) {
+	c := &Context{}
+
+	var wg sync.WaitGroup
+	wg.Add(2)
+
+	go func() {
+		defer wg.Done()
+		for range 1000 {
+			c.Set("foo", "bar")
+		}
+	}()
+
+	go func() {
+		defer wg.Done()
+		for range 1000 {
+			c.Copy()
+		}
+	}()
+
+	wg.Wait()
+}
+
 func TestContextHandlerName(t *testing.T) {
 	c, _ := CreateTestContext(httptest.NewRecorder())
 	c.handlers = HandlersChain{func(c *Context) {}, handlerNameTest}