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Do not attempt to use the unscaled yuv2rgb converter when height is odd because

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it will overflow the buffer by 1 line. This might have been exploitable.

Originally committed as revision 27826 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Michael Niedermayer 2008-10-25 15:00:28 +00:00
parent c87348a922
commit 9b0d44ef67
1 changed files with 1 additions and 1 deletions
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2
libswscale/swscale.c
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@ -2312,7 +2312,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int d
#ifdef CONFIG_GPL
/* yuv2bgr */
if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P) && (isBGR(dstFormat) || isRGB(dstFormat))
&& !(flags & SWS_ACCURATE_RND))
&& !(flags & SWS_ACCURATE_RND) && !(dstH&1))
{
c->swScale= yuv2rgb_get_func_ptr(c);
}