From 16195aad75d7350c192628d7c72c17fd44d138bd Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Sat, 21 Nov 2015 21:58:24 +0100 Subject: [PATCH] avformat/vpk: check samples_per_block size Signed-off-by: Paul B Mahol --- libavformat/vpk.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/vpk.c b/libavformat/vpk.c index ad60aa3d03..751904949f 100644 --- a/libavformat/vpk.c +++ b/libavformat/vpk.c @@ -62,6 +62,8 @@ static int vpk_read_header(AVFormatContext *s) if (st->codec->channels <= 0) return AVERROR_INVALIDDATA; samples_per_block = ((st->codec->block_align / st->codec->channels) * 28) / 16; + if (samples_per_block <= 0) + return AVERROR_INVALIDDATA; vpk->block_count = (st->duration + (samples_per_block - 1)) / samples_per_block; vpk->last_block_size = (st->duration % samples_per_block) * 16 * st->codec->channels / 28; avio_skip(s->pb, offset - avio_tell(s->pb));