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Code Issues Releases Activity

avformat/iamfdec: Check side_substream_id before use

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Fixes: poc-iamf-2025-04

Found-by: 苏童 <220235212@seu.edu.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2025-04-23 01:36:43 +02:00
parent 74fd2c3ddb
commit 9980a0b9b1
1 changed files with 1 additions and 1 deletions
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libavformat/iamfdec.c
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@@ -126,7 +126,7 @@ static int iamf_read_header(AVFormatContext *s)
// Swap back and side stream ids as our native channel layout ordering doen't match the
// order from ITU-R - BS.2051-3 for Systems I and J (where side channels come before back ones).
if (back_substream_id >= 0 && av_channel_layout_compare(&layer->ch_layout,
if (back_substream_id >= 0 && side_substream_id >= 0 && av_channel_layout_compare(&layer->ch_layout,
&(AVChannelLayout)AV_CHANNEL_LAYOUT_9POINT1POINT6)) {
const IAMFSubStream *back_substream = &audio_element->substreams[back_substream_id];
const IAMFSubStream *side_substream = &audio_element->substreams[side_substream_id];