X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fdvbsubdec.c;h=bc4a17bde0ffa726a9828310446fcf881c98b3c0;hb=4f9a8d3fe2f9485ee08848d336ee96f15ec0e7e6;hp=b59e8366570ee92c6dd27a4b3ab0a14aacf0e775;hpb=22219a3ac46ac18f797c94e4619a34728556786c;p=ffmpeg

diff --git a/libavcodec/dvbsubdec.c b/libavcodec/dvbsubdec.c
index b59e8366570..bc4a17bde0f 100644
--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -1267,6 +1267,13 @@ static int dvbsub_parse_region_segment(AVCodecContext *avctx,
         display->y_pos = AV_RB16(buf) & 0xfff;
         buf += 2;
 
+        if (display->x_pos >= region->width ||
+            display->y_pos >= region->height) {
+            av_log(avctx, AV_LOG_ERROR, "Object outside region\n");
+            av_free(display);
+            return AVERROR_INVALIDDATA;
+        }
+
         if ((object->type == 1 || object->type == 2) && buf+1 < buf_end) {
             display->fgcolor = *buf++;
             display->bgcolor = *buf++;