diff --git a/PKGBUILD b/PKGBUILD
index c8ba750..9e687bd 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -4,8 +4,8 @@
 pkgbase=linux               # Build stock -ARCH kernel
 #pkgbase=linux-custom       # Build kernel with a different name
 _srcname=linux-4.12
-pkgver=4.12.8
-pkgrel=2
+pkgver=4.12.9
+pkgrel=1
 arch=('i686' 'x86_64')
 url="https://www.kernel.org/"
 license=('GPL2')
@@ -17,7 +17,6 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         "https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.sign"
         'bonding-require-speed-duplex-only-for-802.3ad-alb-an.patch'
         'bonding-ratelimit-failed-speed-duplex-update-warning.patch'
-        'mm-Revert-x86_64-and-arm64-ELF_ET_DYN_BASE-base.patch'
         # the main kernel config files
         'config.i686' 'config.x86_64'
         # pacman hook for initramfs regeneration
@@ -27,11 +26,10 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
 
 sha256sums=('a45c3becd4d08ce411c14628a949d08e2433d8cdeca92036c7013980e93858ab'
             'SKIP'
-            '32b860911a3bafd5cd5bc813a427c90fad6eafdf607fa64e1b763b16ab605636'
+            '32c5df9c032d039d17cee0397b74583000053089e1c2fdfdc77acc2edc2d2e76'
             'SKIP'
             '48e0505438bb4ccc7a0e050a896122b490e8f1b1446aa3833841a9d4d7853d68'
             'fc606711a922638d5cc4358f47f69f554d9e6eab1cec91f0b49f00911f399722'
-            'b830ce777543c0edd20a77d70f204c095f2429bb37151cd4a8c9dfae2af8d51a'
             'df55887a43dcbb6bd35fd2fb1ec841427b6ea827334c0880cbc256d4f042a7a1'
             'bf84528c592d1841bba0662242f0339a24a1de384c31f28248631e8be9446586'
             '834bd254b56ab71d73f59b3221f056c72f559553c04718e350ab2a3e2991afe0'
@@ -57,11 +55,7 @@ prepare() {
   # https://bugzilla.kernel.org/show_bug.cgi?id=196547
   patch -Np1 -i ../bonding-ratelimit-failed-speed-duplex-update-warning.patch
   patch -Np1 -i ../bonding-require-speed-duplex-only-for-802.3ad-alb-an.patch
-
-  # https://github.com/google/sanitizers/issues/837
-  # https://patchwork.kernel.org/patch/9886105/
-  patch -Np1 -i ../mm-Revert-x86_64-and-arm64-ELF_ET_DYN_BASE-base.patch
-
+  
   cat "${srcdir}/config.${CARCH}" > ./.config
 
   if [ "${_kernelname}" != "" ]; then
diff --git a/mm-Revert-x86_64-and-arm64-ELF_ET_DYN_BASE-base.patch b/mm-Revert-x86_64-and-arm64-ELF_ET_DYN_BASE-base.patch
deleted file mode 100644
index bf089e0..0000000
--- a/mm-Revert-x86_64-and-arm64-ELF_ET_DYN_BASE-base.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
-index acae781f7359..3288c2b36731 100644
---- a/arch/arm64/include/asm/elf.h
-+++ b/arch/arm64/include/asm/elf.h
-@@ -114,10 +114,10 @@
- 
- /*
-  * This is the base location for PIE (ET_DYN with INTERP) loads. On
-- * 64-bit, this is raised to 4GB to leave the entire 32-bit address
-+ * 64-bit, this is above 4GB to leave the entire 32-bit address
-  * space open for things that want to use the area for 32-bit pointers.
-  */
--#define ELF_ET_DYN_BASE		0x100000000UL
-+#define ELF_ET_DYN_BASE		(2 * TASK_SIZE_64 / 3)
- 
- #ifndef __ASSEMBLY__
- 
-diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
-index 1c18d83d3f09..9aeb91935ce0 100644
---- a/arch/x86/include/asm/elf.h
-+++ b/arch/x86/include/asm/elf.h
-@@ -247,11 +247,11 @@ extern int force_personality32;
- 
- /*
-  * This is the base location for PIE (ET_DYN with INTERP) loads. On
-- * 64-bit, this is raised to 4GB to leave the entire 32-bit address
-+ * 64-bit, this is above 4GB to leave the entire 32-bit address
-  * space open for things that want to use the area for 32-bit pointers.
-  */
- #define ELF_ET_DYN_BASE		(mmap_is_ia32() ? 0x000400000UL : \
--						  0x100000000UL)
-+						  (TASK_SIZE / 3 * 2))
- 
- /* This yields a mask that user programs can use to figure out what
-    instruction set this CPU supports.  This could be done in user space,