diff --git a/sys/dev/raid/hptmv/hptproc.c b/sys/dev/raid/hptmv/hptproc.c
--- a/sys/dev/raid/hptmv/hptproc.c
+++ b/sys/dev/raid/hptmv/hptproc.c
@@ -294,14 +294,18 @@
 				return -EINVAL;
 			}
 
-			ke_area = kmalloc(piop->nInBufferSize+piop->nOutBufferSize, M_DEVBUF, M_NOWAIT);
+			ke_area = kmalloc(piop->nInBufferSize+piop->nOutBufferSize, M_DEVBUF, M_NOWAIT | M_ZERO);
 				if (ke_area == NULL) {
 					KdPrintE(("Couldn't allocate kernel mem.\n"));
 					return -EINVAL;
 				}
 
-			if (piop->nInBufferSize)
-				copyin((void*)(ULONG_PTR)piop->lpInBuffer, ke_area, piop->nInBufferSize);
+			if (piop->nInBufferSize) {
+				if (copyin((void*)(ULONG_PTR)piop->lpInBuffer, ke_area, piop->nInBufferSize)) {
+					kfree(ke_area, M_DEVBUF);
+					return -EFAULT;
+				}
+			}
 
 			/*
 			  * call kernel handler.