From 65eddc925c3c032e2bf5540b42568b29e58c7928 Mon Sep 17 00:00:00 2001
From: Andreas Kling <andreas@ladybird.org>
Date: Wed, 10 Jun 2026 00:23:38 +0200
Subject: [PATCH] Meta: Enable stack clash protection on Linux

Pass -fstack-clash-protection for Linux builds. This asks the
compiler to probe large stack allocations incrementally so they cannot
skip over stack guard pages.
---
 Meta/CMake/compile_options.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Meta/CMake/compile_options.cmake b/Meta/CMake/compile_options.cmake
index 00f0926236..aa5e581bba 100644
--- a/Meta/CMake/compile_options.cmake
+++ b/Meta/CMake/compile_options.cmake
@@ -199,6 +199,7 @@ endif()
 
 if (LINUX)
     add_cxx_compile_definitions(_FILE_OFFSET_BITS=64)
+    add_cxx_compile_options(-fstack-clash-protection)
     add_cxx_link_option_if_supported(LINKER:-z,relro)
     add_cxx_link_option_if_supported(LINKER:-z,now)
 endif()