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Code Issues Releases Activity

avcodec/vorbisdec: Check codebook float values to be finite

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Fixes: Timeout
Fixes: 55116/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-4572159970508800

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cadd7e7a75)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-02-12 22:49:01 +01:00
parent 67128a952c
commit 4443cdbc92
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1 changed files with 4 additions and 0 deletions
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4
libavcodec/vorbisdec.c
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@ -363,6 +363,10 @@ static int vorbis_parse_setup_hdr_codebooks(vorbis_context *vc)
unsigned codebook_value_bits = get_bits(gb, 4) + 1;
unsigned codebook_sequence_p = get_bits1(gb);
if (!isfinite(codebook_minimum_value) || !isfinite(codebook_delta_value)) {
ret = AVERROR_INVALIDDATA;
goto error;
}
ff_dlog(NULL, " We expect %d numbers for building the codevectors. \n",
codebook_lookup_values);
ff_dlog(NULL, " delta %f minmum %f \n",