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avcodec/wmalosslessdec: Check block_align maximum
Fixes: Assertion failure Fixes: 22737/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5958388889681920 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -184,7 +184,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
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unsigned int channel_mask;
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int i, log2_max_num_subframes;
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if (avctx->block_align <= 0) {
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if (avctx->block_align <= 0 || avctx->block_align > (1<<21)) {
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av_log(avctx, AV_LOG_ERROR, "block_align is not set or invalid\n");
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return AVERROR(EINVAL);
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}
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