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avcodec/wavarc: Allocate AV_INPUT_BUFFER_PADDING_SIZE 

Fixes: overread
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-5963163952349184
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-6048030137909248

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 2023-09-21 00:29:24 +02:00
parent f3c986200d
commit dbcf285abd
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GPG Key ID: B18E8928B3948D64
1 changed files with 1 additions and 1 deletions
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libavcodec/wavarc.c
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@ -111,7 +111,7 @@ static av_cold int wavarc_init(AVCodecContext *avctx)
}
s->max_framesize = s->nb_samples * 16;
s->bitstream = av_calloc(s->max_framesize, sizeof(*s->bitstream));
s->bitstream = av_calloc(s->max_framesize + AV_INPUT_BUFFER_PADDING_SIZE, sizeof(*s->bitstream));
if (!s->bitstream)
return AVERROR(ENOMEM);