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mimic: Fix race condition

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Fixes access after free.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-10 01:18:12 +02:00
parent 8ef453ff83
commit 500220a8e8
1 changed files with 1 additions and 1 deletions
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2
libavcodec/mimic.c
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@ -175,7 +175,7 @@ static int mimic_decode_update_thread_context(AVCodecContext *avctx, const AVCod
for (i = 0; i < FF_ARRAY_ELEMS(dst->frames); i++) {
ff_thread_release_buffer(avctx, &dst->frames[i]);
if (src->frames[i].f->data[0]) {
if (i != src->next_cur_index && src->frames[i].f->data[0]) {
ret = ff_thread_ref_frame(&dst->frames[i], &src->frames[i]);
if (ret < 0)
return ret;