add patch fixing icmp6_send nullpointer kernel panic

PKGBUILD

@@ -6,7 +6,7 @@ pkgbase=linux               # Build stock -ARCH kernel
 #pkgbase=linux-custom       # Build kernel with a different name
 _srcname=linux-4.8
 pkgver=4.8.12
-pkgrel=2
+pkgrel=3
 arch=('i686' 'x86_64')
 url="https://www.kernel.org/"
 license=('GPL2')
@@ -24,6 +24,7 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         'linux.preset'
         'change-default-console-loglevel.patch'
         fix_race_condition_in_packet_set_ring.diff
+        net_handle_no_dst_on_skb_in_icmp6_send.patch
         )
 
 sha256sums=('3e9150065f193d3d94bcf46a1fe9f033c7ef7122ab71d75a7fb5a2f0c9a7e11a'
@@ -35,7 +36,8 @@ sha256sums=('3e9150065f193d3d94bcf46a1fe9f033c7ef7122ab71d75a7fb5a2f0c9a7e11a'
             '834bd254b56ab71d73f59b3221f056c72f559553c04718e350ab2a3e2991afe0'
             'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65'
             '1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99'
-            'ad1ee95f906f88d31fcdb9273cd08e02e8eda177449f0c98dc1bff8cbf1483c2')
+            'ad1ee95f906f88d31fcdb9273cd08e02e8eda177449f0c98dc1bff8cbf1483c2'
+            'b595a1588bafb3d732841cd1b73633970706914f57f2d215c9f1494212d13989')
 validpgpkeys=(
               'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
               '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
@@ -53,6 +55,9 @@ prepare() {
   # https://marc.info/?l=linux-netdev&m=148054660230570&w=2
   patch -p1 -i "${srcdir}/fix_race_condition_in_packet_set_ring.diff"
 
+  # https://bugzilla.kernel.org/show_bug.cgi?id=189851
+  patch -p1 -i "${srcdir}/net_handle_no_dst_on_skb_in_icmp6_send.patch"
+
   # add latest fixes from stable queue, if needed
   # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
 
@@ -151,7 +156,7 @@ _package() {
   mv "${pkgdir}/lib" "${pkgdir}/usr/"
 
   # add vmlinux
-  install -D -m644 vmlinux "${pkgdir}/usr/lib/modules/${_kernver}/build/vmlinux" 
+  install -D -m644 vmlinux "${pkgdir}/usr/lib/modules/${_kernver}/build/vmlinux"
 }
 
 _package-headers() {
@@ -255,7 +260,7 @@ _package-headers() {
   # add objtool for external module building and enabled VALIDATION_STACK option
   if [ -f tools/objtool/objtool ];  then
       mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/tools/objtool"
-      cp -a tools/objtool/objtool ${pkgdir}/usr/lib/modules/${_kernver}/build/tools/objtool/ 
+      cp -a tools/objtool/objtool ${pkgdir}/usr/lib/modules/${_kernver}/build/tools/objtool/
   fi
 
   chown -R root.root "${pkgdir}/usr/lib/modules/${_kernver}/build"
@@ -275,7 +280,7 @@ _package-headers() {
 
   # remove unneeded architectures
   rm -rf "${pkgdir}"/usr/lib/modules/${_kernver}/build/arch/{alpha,arc,arm,arm26,arm64,avr32,blackfin,c6x,cris,frv,h8300,hexagon,ia64,m32r,m68k,m68knommu,metag,mips,microblaze,mn10300,openrisc,parisc,powerpc,ppc,s390,score,sh,sh64,sparc,sparc64,tile,unicore32,um,v850,xtensa}
-  
+
   # remove a files already in linux-docs package
   rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.recursion-issue-01"
   rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.recursion-issue-02"