diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 894b1f7..f9bd8b8 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -767,7 +767,8 @@
 			mutex_lock(&fid->lock_mutex);
 			list_for_each_entry_safe(li, tmp, &fid->llist, llist) {
 				if (pfLock->fl_start <= li->offset &&
-						length >= li->length) {
+						(pflock->fl_start + length) >=
+						(li->offset + li->length)) {
 					stored_rc = CIFSSMBLock(xid, pTcon,
 							netfid,
 							li->length, li->offset,