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wmavoice: Check for out of bound writes

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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
This commit is contained in:
Laurent Aimar 2011-09-27 22:15:31 +00:00 committed by Janne Grunau
parent 06be075cda
commit 1c1449b548
1 changed files with 2 additions and 0 deletions
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2
libavcodec/wmavoice.c
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@ -1880,6 +1880,8 @@ static void copy_bits(PutBitContext *pb,
rmn_bits = rmn_bytes = get_bits_left(gb);
if (rmn_bits < nbits)
return;
if (nbits > pb->size_in_bits - put_bits_count(pb))
return;
rmn_bits &= 7; rmn_bytes >>= 3;
if ((rmn_bits = FFMIN(rmn_bits, nbits)) > 0)
put_bits(pb, rmn_bits, get_bits(gb, rmn_bits));