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avcodec/tiff: Check for multiple geo key directories
Fixes memleak Fixes: 826/clusterfuzz-testcase-5316921379520512 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 108b02e5471c1dae248200db694aba9b7b8555a8) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -1035,6 +1035,10 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
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ADD_METADATA(count, "ModelTiepointTag", NULL);
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break;
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case TIFF_GEO_KEY_DIRECTORY:
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if (s->geotag_count) {
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avpriv_request_sample(s->avctx, "Multiple geo key directories\n");
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return AVERROR_INVALIDDATA;
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}
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ADD_METADATA(1, "GeoTIFF_Version", NULL);
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ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
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s->geotag_count = ff_tget_short(&s->gb, s->le);
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