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avcodec/put_bits: Assert that size in set_put_bits_buffer_size() does not cause integer overflows

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer
2015-05-25 05:31:26 +02:00
parent 291ad5cc9c
commit bd46e78aa4
1 changed files with 1 additions and 0 deletions
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libavcodec/put_bits.h
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@@ -252,6 +252,7 @@ static inline void skip_put_bits(PutBitContext *s, int n)
*/ */
static inline void set_put_bits_buffer_size(PutBitContext *s, int size) static inline void set_put_bits_buffer_size(PutBitContext *s, int size)
{ {
av_assert0(size <= INT_MAX/8 - 32);
s->buf_end = s->buf + size; s->buf_end = s->buf + size;
s->size_in_bits = 8*size; s->size_in_bits = 8*size;
} }