[FFmpeg-cvslog] vp3: Copy all 3 frames for thread updates

[Michael Niedermayer]

ffmpeg | branch: release/0.10 | Michael Niedermayer <michaelni at gmx.at> | Mon Aug  4 01:06:51 2014 +0100| [dcc68de942f06d358192a57057adb133f7c40dd7] | committer: Vittorio Giovara

vp3: Copy all 3 frames for thread updates

Fixes a double release of the current frame on deinit.

Bug-Id: CVE-2011-3934
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Vittorio Giovara <vittorio.giovara at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dcc68de942f06d358192a57057adb133f7c40dd7
---

 libavcodec/vp3.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index d8e1650..2fa10c1 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -1865,7 +1865,7 @@ 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;
     }