diff --git a/sys/dev/nvme/nvme_ctrlr.c b/sys/dev/nvme/nvme_ctrlr.c
--- a/sys/dev/nvme/nvme_ctrlr.c
+++ b/sys/dev/nvme/nvme_ctrlr.c
@@ -1308,7 +1308,7 @@
 		if (is_user_buffer) {
 			buf = uma_zalloc(pbuf_zone, M_WAITOK);
 			buf->b_iocmd = pt->is_read ? BIO_READ : BIO_WRITE;
-			if (vmapbuf(buf, pt->buf, pt->len, 1) < 0) {
+			if (vmapbuf(buf, pt->buf, pt->len, 0) < 0) {
 				ret = EFAULT;
 				goto err;
 			}
@@ -1405,7 +1405,7 @@
 			buf = uma_zalloc(pbuf_zone, M_WAITOK);
 			buf->b_iocmd = npc->opcode & 1 ? BIO_WRITE : BIO_READ;
 			if (vmapbuf(buf, (void *)(uintptr_t)npc->addr,
-			    npc->data_len, 1) < 0) {
+			    npc->data_len, 0) < 0) {
 				ret = EFAULT;
 				goto err;
 			}