linuxPackages: build by kernel's stdenv

pkgs/os-specific/linux/kernel/manual-config.nix

@@ -82,7 +82,8 @@ let
         (isModular || (config.isDisabled "FIRMWARE_IN_KERNEL"));
     in (optionalAttrs isModular { outputs = [ "out" "dev" ]; }) // {
       passthru = {
-        inherit version modDirVersion config kernelPatches configfile moduleBuildDependencies;
+        inherit version modDirVersion config kernelPatches configfile
+          moduleBuildDependencies stdenv;
       };
 
       inherit src;

pkgs/top-level/all-packages.nix

@@ -13052,6 +13052,7 @@ with pkgs;
     callPackage = newScope self;
 
     inherit kernel;
+    inherit (kernel) stdenv; # in particular, use the same compiler by default
 
     acpi_call = callPackage ../os-specific/linux/acpi-call {};