diff --git a/dix/dispatch.c b/dix/dispatch.c index 01820bc0f..4e24e627f 100644 --- a/dix/dispatch.c +++ b/dix/dispatch.c @@ -1956,7 +1956,7 @@ ProcPutImage(ClientPtr client) tmpImage = (char *) &stuff[1]; lengthProto = length; - if (lengthProto >= (INT32_MAX / stuff->height)) + if (stuff->height != 0 && lengthProto >= (INT32_MAX / stuff->height)) return BadLength; if ((bytes_to_int32(lengthProto * stuff->height) +