diff --git a/nixos/tests/kernel-generic.nix b/nixos/tests/kernel-generic.nix
index 3e74554de339..82d9118c6fb1 100644
--- a/nixos/tests/kernel-generic.nix
+++ b/nixos/tests/kernel-generic.nix
@@ -31,6 +31,7 @@ let
       linux_5_10_hardened
       linux_5_15_hardened
       linux_6_1_hardened
+      linux_6_3_hardened
 
       linux_testing;
   };
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 893605c0bfcc..7696f660ac93 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -27449,6 +27449,8 @@ with pkgs;
   linux_5_15_hardened = linuxKernel.kernels.linux_5_15_hardened;
   linuxPackages_6_1_hardened = linuxKernel.packages.linux_6_1_hardened;
   linux_6_1_hardened = linuxKernel.kernels.linux_6_1_hardened;
+  linuxPackages_6_3_hardened = linuxKernel.packages.linux_6_3_hardened;
+  linux_6_3_hardened = linuxKernel.kernels.linux_6_3_hardened;
 
   # Hardkernel (Odroid) kernels.
   linuxPackages_hardkernel_latest = linuxKernel.packageAliases.linux_hardkernel_latest;
diff --git a/pkgs/top-level/linux-kernels.nix b/pkgs/top-level/linux-kernels.nix
index d2ea00125a7c..3f448f4cdeb0 100644
--- a/pkgs/top-level/linux-kernels.nix
+++ b/pkgs/top-level/linux-kernels.nix
@@ -276,6 +276,7 @@ in {
     linux_5_10_hardened = hardenedKernelFor kernels.linux_5_10 { };
     linux_5_15_hardened = hardenedKernelFor kernels.linux_5_15 { };
     linux_6_1_hardened = hardenedKernelFor kernels.linux_6_1 { };
+    linux_6_3_hardened = hardenedKernelFor kernels.linux_6_3 { };
 
   } // lib.optionalAttrs config.allowAliases {
     linux_4_9 = throw "linux 4.9 was removed because it will reach its end of life within 22.11";
@@ -622,6 +623,7 @@ in {
     linux_5_10_hardened = recurseIntoAttrs (packagesFor kernels.linux_5_10_hardened);
     linux_5_15_hardened = recurseIntoAttrs (packagesFor kernels.linux_5_15_hardened);
     linux_6_1_hardened = recurseIntoAttrs (packagesFor kernels.linux_6_1_hardened);
+    linux_6_3_hardened = recurseIntoAttrs (packagesFor kernels.linux_6_3_hardened);
 
     linux_zen = recurseIntoAttrs (packagesFor kernels.linux_zen);
     linux_lqx = recurseIntoAttrs (packagesFor kernels.linux_lqx);