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avcodec/indeo4: Check dimensions in decode_pic_hdr()
Fixes: Timeout Fixes: 9654/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO4_fuzzer-6289863463665664 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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@ -30,6 +30,7 @@
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#define BITSTREAM_READER_LE
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#include "avcodec.h"
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#include "get_bits.h"
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#include "libavutil/imgutils.h"
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#include "indeo4data.h"
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#include "internal.h"
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#include "ivi.h"
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@ -178,6 +179,13 @@ static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx)
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pic_conf.chroma_bands = 0;
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if (pic_conf.luma_bands)
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pic_conf.chroma_bands = decode_plane_subdivision(&ctx->gb);
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if (av_image_check_size2(pic_conf.pic_width, pic_conf.pic_height, avctx->max_pixels, AV_PIX_FMT_YUV410P, 0, avctx) < 0) {
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av_log(avctx, AV_LOG_ERROR, "picture dimensions %d %d cannot be decoded\n",
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pic_conf.pic_width, pic_conf.pic_height);
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return AVERROR_INVALIDDATA;
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}
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ctx->is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
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if (ctx->is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
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av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n",
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