diff --git a/pkgs/os-specific/linux/kernel/linux-3.17.nix b/pkgs/os-specific/linux/kernel/linux-3.17.nix
index cc77f4409db9..8963f006da1c 100644
--- a/pkgs/os-specific/linux/kernel/linux-3.17.nix
+++ b/pkgs/os-specific/linux/kernel/linux-3.17.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchurl, ... } @ args:
 
 import ./generic.nix (args // rec {
-  version = "3.17.4";
+  version = "3.17.6";
   # Remember to update grsecurity!
   extraMeta.branch = "3.17";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v3.x/linux-${version}.tar.xz";
-    sha256 = "0ayh9y58iv38h76jl2r77856af2cazzkwcdhjqmccibajjf42maa";
+    sha256 = "0z4xai2m8s6zd4mkxsa8dw2ny378y6p9l835z4xj8xwgl30hjaa1";
   };
 
   features.iwlwifi = true;
diff --git a/pkgs/os-specific/linux/kernel/patches.nix b/pkgs/os-specific/linux/kernel/patches.nix
index e4892cf8c9f4..09f15e696bb8 100644
--- a/pkgs/os-specific/linux/kernel/patches.nix
+++ b/pkgs/os-specific/linux/kernel/patches.nix
@@ -67,10 +67,10 @@ rec {
     };
 
   grsecurity_unstable = grsecPatch
-    { kversion  = "3.17.4";
-      revision  = "201412040017";
+    { kversion  = "3.17.6";
+      revision  = "201412071639";
       branch    = "test";
-      sha256    = "1mzqsqc8b4zbjy53vvvy7zl4gbzk7462ljr5x4jvah1mb08i5dmp";
+      sha256    = "182pr7whmr62bbbpn9dwcmmvvx68dbrkv33cb1dz7d29an7mx67w";
     };
 
   grsec_fix_path =