From 50b8fd1ff95f6011c981546b07999ef52335869b Mon Sep 17 00:00:00 2001
From: Ashish SHUKLA <ashish.is@lostca.se>
Date: Sat, 20 Dec 2025 00:33:06 +0000
Subject: [PATCH] jool: Unbreak with linux kernel >= 6.18

Courtesy: https://gitlab.alpinelinux.org/alpine/aports/-/commit/039d64c4c48ab3533c46e012a7e218ce40a5aa9d
---
 pkgs/os-specific/linux/jool/default.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/os-specific/linux/jool/default.nix b/pkgs/os-specific/linux/jool/default.nix
index 0af71b24ac95..b9694444867a 100644
--- a/pkgs/os-specific/linux/jool/default.nix
+++ b/pkgs/os-specific/linux/jool/default.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch,
   kernel,
   kernelModuleMakeFlags,
   nixosTests,
@@ -16,6 +17,13 @@ stdenv.mkDerivation {
 
   src = sourceAttrs.src;
 
+  patches = lib.optionals (lib.versionAtLeast kernel.version "6.18.0") [
+    (fetchpatch {
+      url = "https://gitlab.alpinelinux.org/alpine/aports/-/raw/3.23-stable/community/jool-modules-lts/kernel-6.18.patch";
+      hash = "sha256-EtV95YaOzPU3e/8NQvUtAH/RWiV16djeKrnvSgYybCQ=";
+    })
+  ];
+
   nativeBuildInputs = kernel.moduleBuildDependencies;
   hardeningDisable = [ "pic" ];