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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-02-12 22:49:01 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-26 00:04:44 +0200 |
| commit | 4443cdbc92d36d65fedfdb709a8cf74bef6a64e7 (patch) | |
| tree | c6a041a81dbeceb6134ae54f81a16f207cf0c8b3 | |
| parent | 67128a952c88227bf2b2db2337b50bc403568aa5 (diff) | |
| download | ffmpeg-4443cdbc92d36d65fedfdb709a8cf74bef6a64e7.tar.gz | |
avcodec/vorbisdec: Check codebook float values to be finite
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 cadd7e7a7589b5c118ad1648a09c629a6b65a3be)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/vorbisdec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/vorbisdec.c b/libavcodec/vorbisdec.c index be6d1b2d21..c748aa574f 100644 --- a/libavcodec/vorbisdec.c +++ b/libavcodec/vorbisdec.c @@ -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", |