From dbc0a150802cb8aaa38ca14f29d71868a227a5e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Fri, 23 Oct 2026 05:05:56 +0200
Subject: [PATCH] Maker: fix stack UAF of dynamic_linker_path in
 Step.Compile.appendModuleFlags()

closes https://codeberg.org/ziglang/zig/issues/37377
---
 lib/compiler/Maker/Step/Compile.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/compiler/Maker/Step/Compile.zig b/lib/compiler/Maker/Step/Compile.zig
index 8c6ab5fe30c55becc28af17276c89b3f4baca121..1652bb1510fa7a3e05275c06295285f0b4fe51d6 100644
--- a/lib/compiler/Maker/Step/Compile.zig
+++ b/lib/compiler/Maker/Step/Compile.zig
@@ -1303,7 +1303,7 @@ fn appendModuleFlags(
             if (query.dynamic_linker) |*dynamic_linker| {
                 if (dynamic_linker.get()) |dynamic_linker_path| {
                     zig_args.appendAssumeCapacity("--dynamic-linker");
-                    zig_args.appendAssumeCapacity(dynamic_linker_path);
+                    zig_args.appendAssumeCapacity(try arena.dupe(u8, dynamic_linker_path));
                 } else {
                     zig_args.appendAssumeCapacity("--no-dynamic-linker");
                 }
-- 
2.54.0