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Check dimensions against 0 too. 

39_vorbis_zero_dims.patch from chrome

Originally committed as revision 19976 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-09-23 08:35:29 +00:00
parent 9062cd3544
commit 98f7bcb119
1 changed files with 2 additions and 2 deletions
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4
libavcodec/vorbis_dec.c
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@ -244,8 +244,8 @@ static int vorbis_parse_setup_hdr_codebooks(vorbis_context *vc) {
}
codebook_setup->dimensions=get_bits(gb, 16);
if (codebook_setup->dimensions>16) {
av_log(vc->avccontext, AV_LOG_ERROR, " %"PRIdFAST16". Codebook's dimension is too large (%d). \n", cb, codebook_setup->dimensions);
if (codebook_setup->dimensions>16||codebook_setup->dimensions==0) {
av_log(vc->avccontext, AV_LOG_ERROR, " %"PRIdFAST16". Codebook's dimension is invalid (%d). \n", cb, codebook_setup->dimensions);
goto error;
}
entries=get_bits(gb, 24);