diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index a48d2d466e22..4cfc548f952d 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -173,7 +173,7 @@ let
       DAMON_VADDR = whenAtLeast "5.15" yes;
       DAMON_PADDR = whenAtLeast "5.16" yes;
       DAMON_SYSFS = whenAtLeast "5.18" yes;
-      DAMON_DBGFS = whenAtLeast "5.15" yes;
+      DAMON_DBGFS = whenBetween "5.15" "6.9" yes;
       DAMON_RECLAIM = whenAtLeast "5.16" yes;
       DAMON_LRU_SORT = whenAtLeast "6.0" yes;
       # Support recovering from memory failures on systems with ECC and MCA recovery.
@@ -577,7 +577,7 @@ let
       EXT4_FS_SECURITY  = yes;
       EXT4_ENCRYPTION   = whenOlder "5.1" yes;
 
-      NTFS_FS            = whenAtLeast "5.15" no;
+      NTFS_FS            = whenBetween "5.15" "6.9" no;
       NTFS3_LZX_XPRESS   = whenAtLeast "5.15" yes;
       NTFS3_FS_POSIX_ACL = whenAtLeast "5.15" yes;
 
@@ -728,7 +728,8 @@ let
       X86_USER_SHADOW_STACK = whenAtLeast "6.6" yes;
 
       # Mitigate straight line speculation at the cost of some file size
-      SLS = whenAtLeast "5.17" yes;
+      SLS = whenBetween "5.17" "6.9" yes;
+      MITIGATION_SLS = whenAtLeast "6.9" yes;
     };
 
     microcode = {
diff --git a/pkgs/os-specific/linux/kernel/kernels-org.json b/pkgs/os-specific/linux/kernel/kernels-org.json
index b9207f0ac2f5..053916a551a0 100644
--- a/pkgs/os-specific/linux/kernel/kernels-org.json
+++ b/pkgs/os-specific/linux/kernel/kernels-org.json
@@ -1,7 +1,7 @@
 {
     "testing": {
-        "version": "6.8-rc7",
-        "hash": "sha256:0q9isgv6lxzrmb4idl0spxv2l7fsk3nn4cdq0vdw9c8lyzrh5yy0"
+        "version": "6.9-rc1",
+        "hash": "sha256:05hi2vfmsjwl5yhqmy4h5a954090nv48z9gabhvh16xlaqlfh8nz"
     },
     "6.1": {
         "version": "6.1.82",
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
index 188ca24100b1..337594115fa6 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
@@ -6,7 +6,7 @@
 , ... } @ args:
 
 let
-  version = "5.10.211-rt103"; # updated by ./update-rt.sh
+  version = "5.10.213-rt105"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
@@ -17,14 +17,14 @@ in buildLinux (args // {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
-    sha256 = "1cir36s369fl6s46x16xnjg0wdlnkipsp2zhz11m9d3z205hly1s";
+    sha256 = "105df7w6m5a3fngi6ajqs5qblaq4lbxsgcppllrk7v1r68i31kw4";
   };
 
   kernelPatches = let rt-patch = {
     name = "rt";
     patch = fetchurl {
       url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "07br63p90gwmijxq8ad7iyi4d3fkm6jwwl2s2k1549bbaldchbk6";
+      sha256 = "1q5kz3mfvwb4fd5i2mbklsa6gifb8g3wbq0wi2478q097dvmb6gi";
     };
   }; in [ rt-patch ] ++ kernelPatches;
 
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix b/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
index 16a23b6b139c..6547a8e5e509 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
@@ -6,7 +6,7 @@
 , ... } @ args:
 
 let
-  version = "6.1.80-rt26"; # updated by ./update-rt.sh
+  version = "6.1.82-rt27"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
@@ -18,14 +18,14 @@ in buildLinux (args // {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v6.x/linux-${kversion}.tar.xz";
-    sha256 = "0wdnyy7m9kfkl98id0gm6jzp4aa0hfy6gfkb4k4cg1wbpfpcm3jn";
+    sha256 = "01pcrcjp5mifjjmfz7j1jb8nhq8nkxspavxmv1l7d1qnskcx4l6i";
   };
 
   kernelPatches = let rt-patch = {
     name = "rt";
     patch = fetchurl {
       url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "0w47ii5xhsbnkmgzlgg18ljwdms88scbzhqlw0qv3lnldicykg0p";
+      sha256 = "03mj6p9z5c2hzdl46479gb9x41papq91g86yyc61fv8hj8kxgysc";
     };
   }; in [ rt-patch ] ++ kernelPatches;
 
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix b/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix
index 4ff7e1c54b04..d84f95ccbc1f 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-6.6.nix
@@ -6,7 +6,7 @@
 , ... } @ args:
 
 let
-  version = "6.6.21-rt26"; # updated by ./update-rt.sh
+  version = "6.6.22-rt27"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
@@ -18,14 +18,14 @@ in buildLinux (args // {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v6.x/linux-${kversion}.tar.xz";
-    sha256 = "0mz420w99agr7jv1jgqfr4fjhzbv005xif086sqx556s900l62zf";
+    sha256 = "1x52c6ywmspp3naishzsknhy7i0b7mv9baxx25a0y987cjsygqr3";
   };
 
   kernelPatches = let rt-patch = {
     name = "rt";
     patch = fetchurl {
       url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "1sh2jkm3h52a5dkc72xgrw1kz1faw1kzhpbqg64gsxbivmxfvf21";
+      sha256 = "01n9khj51xf8dj2hhxhlkha4f8hwf6w5marc227ljm9w5hlza12g";
     };
   }; in [ rt-patch ] ++ kernelPatches;
 
diff --git a/pkgs/top-level/linux-kernels.nix b/pkgs/top-level/linux-kernels.nix
index 4cfba7c9c724..01f26e8287d3 100644
--- a/pkgs/top-level/linux-kernels.nix
+++ b/pkgs/top-level/linux-kernels.nix
@@ -214,8 +214,6 @@ in {
         kernelPatches = [
           kernelPatches.bridge_stp_helper
           kernelPatches.request_key_helper
-          kernelPatches.rust_1_75
-          kernelPatches.rust_1_76
         ];
       };
       latest = packageAliases.linux_latest.kernel;