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vp3: Copy all 3 frames for thread updates. 

This fixes a double release of the current frame on deinit.
Fixes CVE-2011-3934

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-01-25 21:10:29 +01:00
parent 6071644287
commit 247d30a7db
1 changed files with 1 additions and 1 deletions
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2
libavcodec/vp3.c
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@ -1859,7 +1859,7 @@ static int vp3_update_thread_context(AVCodecContext *dst, const AVCodecContext *
||s->width != s1->width
||s->height!= s1->height) {
if (s != s1)
copy_fields(s, s1, golden_frame, current_frame);
copy_fields(s, s1, golden_frame, keyframe);
return -1;
}