3 files changed, 21 insertions, 1 deletions
diff --git a/src/cmd/link/internal/loader/loader.go b/src/cmd/link/internal/loader/loader.go
index 2d386c0c65..9ab55643f6 100644
--- a/src/cmd/link/internal/loader/loader.go
+++ b/src/cmd/link/internal/loader/loader.go
@@ -2464,10 +2464,11 @@ var blockedLinknames = map[string][]string{
 	// Experimental features
 	"runtime.goroutineLeakGC":    {"runtime/pprof"},
 	"runtime.goroutineleakcount": {"runtime/pprof"},
+	"runtime.freegc":             {}, // disallow all packages
 	// Others
 	"net.newWindowsFile":                   {"net"},              // pushed from os
 	"testing/synctest.testingSynctestTest": {"testing/synctest"}, // pushed from testing
-	"runtime.addmoduledata":                {},                   // disallow all package
+	"runtime.addmoduledata":                {},                   // disallow all packages
 }
 
 // check if a linkname reference to symbol s from pkg is allowed
diff --git a/src/cmd/link/link_test.go b/src/cmd/link/link_test.go
index 31822d21f3..6ab1246c81 100644
--- a/src/cmd/link/link_test.go
+++ b/src/cmd/link/link_test.go
@@ -1616,6 +1616,7 @@ func TestCheckLinkname(t *testing.T) {
 		// pull linkname of a builtin symbol is not ok
 		{"builtin.go", false},
 		{"addmoduledata.go", false},
+		{"freegc.go", false},
 		// legacy bad linkname is ok, for now
 		{"fastrand.go", true},
 		{"badlinkname.go", true},
diff --git a/src/cmd/link/testdata/linkname/freegc.go b/src/cmd/link/testdata/linkname/freegc.go
new file mode 100644
index 0000000000..390063f8e9
--- /dev/null
+++ b/src/cmd/link/testdata/linkname/freegc.go
@@ -0,0 +1,18 @@
+// Copyright 2025 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Linkname runtime.freegc is not allowed.
+
+package main
+
+import (
+	_ "unsafe"
+)
+
+//go:linkname freegc runtime.freegc
+func freegc()
+
+func main() {
+	freegc()
+}