diff --git a/srcpkgs/linux4.0/files/i386-dotconfig b/srcpkgs/linux4.0/files/i386-dotconfig
index 178c944b886..f70e3c870c5 100644
--- a/srcpkgs/linux4.0/files/i386-dotconfig
+++ b/srcpkgs/linux4.0/files/i386-dotconfig
@@ -6890,7 +6890,7 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=60
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_LATENCYTOP is not set
 CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
-# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
+CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
 CONFIG_USER_STACKTRACE_SUPPORT=y
 CONFIG_HAVE_FUNCTION_TRACER=y
 CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
diff --git a/srcpkgs/linux4.0/files/x86_64-dotconfig b/srcpkgs/linux4.0/files/x86_64-dotconfig
index e181fbe6c5c..cf4f4d8f9ff 100644
--- a/srcpkgs/linux4.0/files/x86_64-dotconfig
+++ b/srcpkgs/linux4.0/files/x86_64-dotconfig
@@ -6858,7 +6858,7 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=60
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_LATENCYTOP is not set
 CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
-# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
+CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
 CONFIG_USER_STACKTRACE_SUPPORT=y
 CONFIG_NOP_TRACER=y
 CONFIG_HAVE_FUNCTION_TRACER=y
diff --git a/srcpkgs/linux4.0/template b/srcpkgs/linux4.0/template
index 4bfc90ad3ea..97e96d5a6d1 100644
--- a/srcpkgs/linux4.0/template
+++ b/srcpkgs/linux4.0/template
@@ -1,7 +1,7 @@
 # Template file for 'linux4.0'
 #
 pkgname=linux4.0
-version=4.0.8
+version=4.0.9
 revision=1
 wrksrc="linux-${version}"
 maintainer="Juan RP <xtraeme@voidlinux.eu>"