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Merge commit '0679cec6e8802643bbe6d5f68ca1110a7d3171da'

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* commit '0679cec6e8802643bbe6d5f68ca1110a7d3171da':
  smacker: Make sure we don't fill in huffman codes out of range

Conflicts:
	libavcodec/smacker.c

See: 1285baaab5
the added test is redundant but will be used after future refactoring

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-09-12 12:45:29 +02:00
parent d510d70df0 0679cec6e8
commit f8932d9902
1 changed files with 6 additions and 0 deletions
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6
libavcodec/smacker.c
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@@ -284,6 +284,12 @@ static int smacker_decode_header_tree(SmackVContext *smk, GetBitContext *gb, int
av_log(smk->avctx, AV_LOG_ERROR, "bigtree damaged\n"); av_log(smk->avctx, AV_LOG_ERROR, "bigtree damaged\n");
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }
if (ctx.last[0] >= huff.length ||
ctx.last[1] >= huff.length ||
ctx.last[2] >= huff.length) {
av_log(smk->avctx, AV_LOG_ERROR, "Huffman codes out of range\n");
err = AVERROR_INVALIDDATA;
}
*recodes = huff.values; *recodes = huff.values;