diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index e7c212cb6e6fe..e3ae987f43b42 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -11,6 +11,7 @@
 
 # Configuration
 { lib, stdenv, version
+, rustAvailable
 
 , features ? {}
 }:
@@ -33,10 +34,8 @@ let
   kernelSupportsRust = lib.versionAtLeast version "6.7";
 
   # Currently only enabling Rust by default on kernel 6.12+,
-  # which actually has features that use Rust that we want,
-  # and only on x86_64, because of a nixpkgs rustc issue:
-  # https://github.com/NixOS/nixpkgs/pull/315121#issuecomment-2135805876
-  defaultRust = lib.versionAtLeast version "6.12" && stdenv.hostPlatform.isx86_64;
+  # which actually has features that use Rust that we want.
+  defaultRust = lib.versionAtLeast version "6.12" && rustAvailable;
   withRust = (forceRust || defaultRust) && kernelSupportsRust;
 
   options = {
@@ -641,7 +640,10 @@ let
       NFS_V4_1              = yes;  # NFSv4.1 client support
       NFS_V4_2              = yes;
       NFS_V4_SECURITY_LABEL = yes;
-      NFS_LOCALIO           = whenAtLeast "6.12" yes;
+
+      # Fails with
+      # `fs/nfs/localio.o: relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `nfs_to' which may bind externally can not be used when making a shared object; recompile with -fPIC`
+      NFS_LOCALIO           = lib.mkIf (!stdenv.hostPlatform.isAarch64) (whenAtLeast "6.12" yes);
 
       CIFS_XATTR        = yes;
       CIFS_POSIX        = option yes;
diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix
index fdfc782352266..49c9594f8f7f0 100644
--- a/pkgs/os-specific/linux/kernel/generic.nix
+++ b/pkgs/os-specific/linux/kernel/generic.nix
@@ -108,6 +108,11 @@ let
 
   commonStructuredConfig = import ./common-config.nix {
     inherit lib stdenv version;
+    rustAvailable =
+      lib.any (lib.meta.platformMatch stdenv.hostPlatform) rustc.targetPlatforms
+      && lib.all (p: !lib.meta.platformMatch stdenv.hostPlatform p) rustc.badTargetPlatforms
+      # Known to be broken: https://lore.kernel.org/lkml/31885EDD-EF6D-4EF1-94CA-276BA7A340B7@kernel.org/T/
+      && !(stdenv.hostPlatform.isRiscV && stdenv.cc.isGNU);
 
     features = kernelFeatures; # Ensure we know of all extra patches, etc.
   };