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bink: Check for out of bound writes when building tree

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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
(cherry picked from commit 24adf7832b8370f3c1febbef6c686f574d360d32)

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Laurent Aimar 2011-09-27 12:16:41 +00:00 committed by Reinhard Tartler
parent e52e85ac3a
commit c98d7882d8
1 changed files with 1 additions and 1 deletions
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libavcodec/bink.c
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@ -246,7 +246,7 @@ static void read_tree(GetBitContext *gb, Tree *tree)
tree->syms[i] = get_bits(gb, 4);
tmp1[tree->syms[i]] = 1;
}
for (i = 0; i < 16; i++)
for (i = 0; i < 16 && len < 16 - 1; i++)
if (!tmp1[i])
tree->syms[++len] = i;
} else {