diff --git a/.SRCINFO b/.SRCINFO
index 352dcb4..14b7c44 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,7 +1,7 @@
 pkgbase = nvidia-340xx
 	pkgdesc = NVIDIA drivers for linux, 340xx legacy branch
 	pkgver = 340.108
-	pkgrel = 5
+	pkgrel = 6
 	url = https://www.nvidia.com/
 	arch = x86_64
 	license = custom
@@ -11,13 +11,15 @@ pkgbase = nvidia-340xx
 	conflicts = nvidia
 	options = !strip
 	source = https://us.download.nvidia.com/XFree86/Linux-x86_64/340.108/NVIDIA-Linux-x86_64-340.108-no-compat32.run
-	source = 01-unfuck-for-340.108-build-fix.patch
-	source = 02-unfuck-for-5.5.x.patch
-	source = fix_multi_core_build.patch
+	source = 01-fix_multi_core_build.patch
+	source = 02-unfuck-for-340.108-build-fix.patch
+	source = 03-unfuck-for-5.5.x.patch
+	source = 04-fix_message_in_dmesg.patch
 	sha256sums = 995d44fef587ff5284497a47a95d71adbee0c13020d615e940ac928f180f5b77
+	sha256sums = 82d14e9e6ec47c345d225d9f398238b7254cd5ae581c70e8521b9157ec747890
 	sha256sums = 2b7e3ef24846a40f4492e749be946e4f7f70ebed054bc2c9079f6cbdcbfabe57
 	sha256sums = c28d65854dd03e6a9e00d79fa0ca3521c11b2c198882bbd50870c8e71d18d765
-	sha256sums = 82d14e9e6ec47c345d225d9f398238b7254cd5ae581c70e8521b9157ec747890
+	sha256sums = 7f90e80be6338f6fc902d257d8ceb09e89b40d008f7a3ad9fe82833cd5b89316
 
 pkgname = nvidia-340xx
 	pkgdesc = NVIDIA drivers for linux, 340xx legacy branch
diff --git a/fix_multi_core_build.patch b/01-fix_multi_core_build.patch
similarity index 100%
rename from fix_multi_core_build.patch
rename to 01-fix_multi_core_build.patch
diff --git a/01-unfuck-for-340.108-build-fix.patch b/02-unfuck-for-340.108-build-fix.patch
similarity index 100%
rename from 01-unfuck-for-340.108-build-fix.patch
rename to 02-unfuck-for-340.108-build-fix.patch
diff --git a/02-unfuck-for-5.5.x.patch b/03-unfuck-for-5.5.x.patch
similarity index 100%
rename from 02-unfuck-for-5.5.x.patch
rename to 03-unfuck-for-5.5.x.patch
diff --git a/04-fix_message_in_dmesg.patch b/04-fix_message_in_dmesg.patch
new file mode 100644
index 0000000..f3d7090
--- /dev/null
+++ b/04-fix_message_in_dmesg.patch
@@ -0,0 +1,51 @@
+Patch by vova7890
+> vova7890 commented on 2020-03-19 01:01
+> I'm facing this message in dmesg: Bad or missing usercopy whitelist?
+> Kernel memory exposure attempt detected from SLUB object 'nvidia_stack_t'
+> A little search and I had portback this patch to 340xx.
+> Can you please add this? https://zvova7890.com.ua/s/ed9JJG8KyQKQQBx
+--
+vova7890 commented on 2020-03-19 01:01
+diff -Naur a/nv.c b/nv.c
+--- a/nv.c	2019-12-12 00:04:24.000000000 +0200
++++ b/nv.c	2020-03-19 04:21:13.923750900 +0200
+@@ -752,7 +752,7 @@
+     NV_SPIN_LOCK_INIT(&km_lock);
+ #endif
+
+-    NV_KMEM_CACHE_CREATE(nv_stack_t_cache, NV_STACK_CACHE_STR, nv_stack_t);
++    NV_KMEM_CACHE_CREATE_USERCOPY(nv_stack_t_cache, NV_STACK_CACHE_STR, nv_stack_t);
+     if (nv_stack_t_cache == NULL)
+     {
+         nv_printf(NV_DBG_ERRORS, "NVRM: stack cache allocation failed!\n");
+diff -Naur a/nv-linux.h b/nv-linux.h
+--- a/nv-linux.h	2019-12-12 00:04:24.000000000 +0200
++++ b/nv-linux.h	2020-03-19 04:21:13.927084233 +0200
+@@ -762,9 +762,27 @@
+         kmem_cache = kmem_cache_create(name, sizeof(type),      \
+                         0, 0, NULL);                            \
+     }
++#define NV_KMEM_CACHE_CREATE_FULL(name, size, align, flags, ctor) \
++     kmem_cache_create(name, size, align, flags, ctor)
+ #else
+ #error "NV_KMEM_CACHE_CREATE_ARGUMENT_COUNT value unrecognized!"
+ #endif
++
++#define NV_KMEM_CACHE_CREATE_FULL_USERCOPY(name, size, align, flags, useroffset, usersize, ctor) \
++     kmem_cache_create_usercopy(name, size, align, flags, useroffset, usersize, ctor);
++
++#ifdef SLAB_USERCOPY
++#define NV_KMEM_CACHE_CREATE_USERCOPY(kmem_cache, name, type)    \
++    {                                                            \
++        kmem_cache = NV_KMEM_CACHE_CREATE_FULL(name, sizeof(type), 0, SLAB_USERCOPY, NULL); \
++    }
++#else
++#define NV_KMEM_CACHE_CREATE_USERCOPY(kmem_cache, name, type)    \
++    {                                                            \
++        kmem_cache = NV_KMEM_CACHE_CREATE_FULL_USERCOPY(name, sizeof(type), 0, 0, 0, sizeof(type), NULL); \
++    }
++#endif
++
+ #define NV_KMEM_CACHE_DESTROY(kmem_cache)                       \
+     {                                                           \
+         kmem_cache_destroy(kmem_cache);                         \
diff --git a/PKGBUILD b/PKGBUILD
index f0099bd..061ec50 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -6,7 +6,7 @@
 pkgbase=nvidia-340xx
 pkgname=(nvidia-340xx nvidia-340xx-dkms)
 pkgver=340.108
-pkgrel=5
+pkgrel=6
 pkgdesc="NVIDIA drivers for linux, 340xx legacy branch"
 arch=('x86_64')
 url="https://www.nvidia.com/"
@@ -17,14 +17,16 @@ options=(!strip)
 # seems manjaro is keeping this current
 # https://gitlab.manjaro.org/packages?utf8=%E2%9C%93&filter=nvidia-340xx
 source=("https://us.download.nvidia.com/XFree86/Linux-x86_64/${pkgver}/NVIDIA-Linux-x86_64-${pkgver}-no-compat32.run"
-  01-unfuck-for-340.108-build-fix.patch
-  02-unfuck-for-5.5.x.patch
-  fix_multi_core_build.patch
+  01-fix_multi_core_build.patch
+  02-unfuck-for-340.108-build-fix.patch
+  03-unfuck-for-5.5.x.patch
+  04-fix_message_in_dmesg.patch
 )
 sha256sums=('995d44fef587ff5284497a47a95d71adbee0c13020d615e940ac928f180f5b77'
+            '82d14e9e6ec47c345d225d9f398238b7254cd5ae581c70e8521b9157ec747890'
             '2b7e3ef24846a40f4492e749be946e4f7f70ebed054bc2c9079f6cbdcbfabe57'
             'c28d65854dd03e6a9e00d79fa0ca3521c11b2c198882bbd50870c8e71d18d765'
-            '82d14e9e6ec47c345d225d9f398238b7254cd5ae581c70e8521b9157ec747890')
+            '7f90e80be6338f6fc902d257d8ceb09e89b40d008f7a3ad9fe82833cd5b89316')
 _pkg="NVIDIA-Linux-x86_64-${pkgver}-no-compat32"
 
 # default is 'linux' substitute custom name here