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mmvideo: restore initial y value. 

This bug might have been exploitable (out of HEAP buffer writes)

Bug introduced by libav
	commit a55d5bdc6e
	Date:   Tue Mar 6 15:15:42 2012 -0800

	    algmm: convert to bytestream2 API.
This commit is contained in:
Michael Niedermayer 2012-03-13 22:20:39 +01:00
parent 67c90d2605
commit c2e3b564b3
1 changed files with 1 additions and 1 deletions
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2
libavcodec/mmvideo.c
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@ -127,7 +127,7 @@ static int mm_decode_intra(MmContext * s, int half_horiz, int half_vert)
*/
static int mm_decode_inter(MmContext * s, int half_horiz, int half_vert)
{
int data_off = bytestream2_get_le16(&s->gb), y;
int data_off = bytestream2_get_le16(&s->gb), y = 0;
GetByteContext data_ptr;
if (bytestream2_get_bytes_left(&s->gb) < data_off)