Signed-off-by: Sasi Inguva <[email protected]>
---
libavcodec/movtextdec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index abf8711..a33fff7 100644
--- a/libavcodec/movtextdec.c
+++ b/libavcodec/movtextdec.c
@@ -471,6 +471,10 @@ static int mov_text_decode_frame(AVCodecContext *avctx,
tsmb_type = AV_RB32(tsmb);
tsmb += 4;
+ if (tsmb_size == 0) {
+ return AVERROR_INVALIDDATA;
+ }
+
if (tsmb_size == 1) {
if (m->tracksize + 16 > avpkt->size)
break;
--
2.8.0.rc3.226.g39d4020
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