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Code Issues Releases Activity

avcodec/movtextdec: Improve size check

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Reviewed-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-12-08 15:04:25 +01:00
parent cd693c9ec8
commit b9f5a26a39
1 changed files with 2 additions and 2 deletions
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4
libavcodec/movtextdec.c
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@ -537,8 +537,8 @@ static int mov_text_decode_frame(AVCodecContext *avctx,
m->size_var = 8;
//size_var is equal to 8 or 16 depending on the size of box
if (tsmb_size == 0) {
av_log(avctx, AV_LOG_ERROR, "tsmb_size is 0\n");
if (tsmb_size < m->size_var) {
av_log(avctx, AV_LOG_ERROR, "tsmb_size invalid\n");
return AVERROR_INVALIDDATA;
}