kernelmptcp: 0.91.3 -> 0.92.1

pkgs/os-specific/linux/kernel/linux-mptcp.nix

···
 { stdenv, hostPlatform, fetchurl, perl, buildLinux, ... } @ args:
 
 import ./generic.nix (args // rec {
-  mptcpVersion = "0.91.3";
-  modDirVersion = "4.1.38";
+  mptcpVersion = "0.92.1";
+  modDirVersion = "4.4.83";
   version = "${modDirVersion}-mptcp_v${mptcpVersion}";
 
   extraMeta = {
-    branch = "4.1";
-    maintainers = [ stdenv.lib.maintainers.layus ];
+    branch = "4.4";
+    maintainers = with stdenv.lib.maintainers; [ teto layus ];
   };
 
   src = fetchurl {
     url = "https://github.com/multipath-tcp/mptcp/archive/v${mptcpVersion}.tar.gz";
-    sha256 = "0vqjnkzcbbvyq24w3cryfmw7hhws1xqkkxqcv71szkbqqs6mcr14";
+    sha256 = "1afjqmxq9p5gyr6r607bx3mqpnx451kfpwlffzxwgdwnf93alngz";
   };
 
   extraConfig = ''

pkgs/os-specific/linux/kernel/patches.nix

···
 
   cpu-cgroup-v2 = import ./cpu-cgroup-v2-patches;
 
-  DCCP_double_free_vulnerability_CVE-2017-6074 = rec
-    { name = "DCCP_double_free_vulnerability_CVE-2017-6074.patch";
-      patch = fetchpatch {
-        inherit name;
-        url = "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/?id=5edabca9d4cff7f1f2b68f0bac55ef99d9798ba4";
-        sha256 = "10dmv3d3gj8rvj9h40js4jh8xbr5wyaqiy0kd819mya441mj8ll2";
-      };
-    };
-
   tag_hardened = rec {
     name = "tag-hardened";
     patch = ./tag-hardened.patch;

pkgs/top-level/all-packages.nix

···
     };
   };
 
+  # linux mptcp is based on the 4.4 kernel
   linux_mptcp = callPackage ../os-specific/linux/kernel/linux-mptcp.nix {
     kernelPatches =
       [ kernelPatches.bridge_stp_helper
         kernelPatches.p9_fixes
-        kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
+        kernelPatches.cpu-cgroup-v2."4.4"
       ]
       ++ lib.optionals ((platform.kernelArch or null) == "mips")
       [ kernelPatches.mips_fpureg_emu