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avcodec/apac: Sanity check bits_per_coded_sample

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Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 53931/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APAC_fuzzer-6072913738727424

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-12-18 17:04:27 +01:00
parent 8374a747af
commit b7d063951d
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GPG Key ID: B18E8928B3948D64
1 changed files with 4 additions and 1 deletions
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libavcodec/apac.c
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@ -75,7 +75,10 @@ static av_cold int apac_init(AVCodecContext *avctx)
avctx->sample_fmt = AV_SAMPLE_FMT_U8P;
if (avctx->ch_layout.nb_channels < 1 ||
avctx->ch_layout.nb_channels > 2)
avctx->ch_layout.nb_channels > 2 ||
avctx->bits_per_coded_sample < 8 ||
avctx->bits_per_coded_sample > 16
)
return AVERROR_INVALIDDATA;
for (int ch = 0; ch < avctx->ch_layout.nb_channels; ch++) {