X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmicrodvddec.c;h=dad0ec8a22acd1d5685e9bbe60dee5c05b589b57;hb=339af976b6fd9c05d1e75e75a5323efdb3d6afa1;hp=4a34267793735fc78074cdde0401d7d0298ae91f;hpb=b13a1210a242d2b3177592ec8687c6f579bff156;p=ffmpeg

diff --git a/libavcodec/microdvddec.c b/libavcodec/microdvddec.c
index 4a342677937..dad0ec8a22a 100644
--- a/libavcodec/microdvddec.c
+++ b/libavcodec/microdvddec.c
@@ -99,7 +99,7 @@ static char *microdvd_load_tags(struct microdvd_tag *tags, char *s)
         case 'Y':
             tag.persistent = MICRODVD_PERSISTENT_ON;
         case 'y':
-            while (*s && *s != '}') {
+            while (*s && *s != '}' && s - start < 256) {
                 int style_index = indexof(MICRODVD_STYLES, *s);
 
                 if (style_index >= 0)