diff options
| -rw-r--r-- | Xi/xiselectev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Xi/xiselectev.c b/Xi/xiselectev.c index 8c1b2b106..6734da991 100644 --- a/Xi/xiselectev.c +++ b/Xi/xiselectev.c @@ -73,6 +73,9 @@ ProcXISelectEvent(ClientPtr client) REQUEST(xXISelectEventsReq); REQUEST_AT_LEAST_SIZE(xXISelectEventsReq); + if (stuff->num_masks == 0) + return BadValue; + rc = dixLookupWindow(&win, stuff->window, client, DixReceiveAccess); if (rc != Success) return rc; |