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mtvdec: check that the buf is large enough for probing 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-19 21:46:51 +02:00
parent 2a70d8304d
commit ee402df9a2
1 changed files with 1 additions and 1 deletions
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2
libavformat/mtv.c
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@ -57,7 +57,7 @@ static int mtv_probe(AVProbeData *p)
return 0;
/* Check for nonzero in bpp and (width|height) header fields */
if(!(p->buf[51] && AV_RL16(&p->buf[52]) | AV_RL16(&p->buf[54])))
if(p->buf_size < 57 || !(p->buf[51] && AV_RL16(&p->buf[52]) | AV_RL16(&p->buf[54])))
return 0;
/* If width or height are 0 then imagesize header field should not */