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>
13 years ago · 247d30a7db
parent 6071644287
commit 247d30a7db
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@ -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;
    }