From: Laurent Aimar <[email protected]>
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavcodec/qdm2.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c
index 2a45495..326ff79 100644
--- a/libavcodec/qdm2.c
+++ b/libavcodec/qdm2.c
@@ -1798,6 +1798,8 @@ static av_cold int qdm2_decode_init(AVCodecContext *avctx)
avctx->channels = s->nb_channels = s->channels = AV_RB32(extradata);
extradata += 4;
+ if (s->channels > MPA_MAX_CHANNELS)
+ return AVERROR_INVALIDDATA;
avctx->sample_rate = AV_RB32(extradata);
extradata += 4;
@@ -1819,6 +1821,8 @@ static av_cold int qdm2_decode_init(AVCodecContext *avctx)
// something like max decodable tones
s->group_order = av_log2(s->group_size) + 1;
s->frame_size = s->group_size / 16; // 16 iterations per super block
+ if (s->frame_size > FF_ARRAY_ELEMS(s->output_buffer) / 2)
+ return AVERROR_INVALIDDATA;
s->sub_sampling = s->fft_order - 7;
s->frequency_range = 255 / (1 << (2 - s->sub_sampling));
--
1.7.1
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