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vp56: release frames on error

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Fixes CVE-2012-2783

CC: libav-stable@libav.org
This commit is contained in:
Luca Barbato 2012-12-14 09:55:04 +01:00
parent bb675d3ac6
commit f33b5ba63e
1 changed files with 7 additions and 1 deletions
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8
libavcodec/vp56.c
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@ -514,8 +514,14 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
s->modelp = &s->models[is_alpha];
res = s->parse_header(s, buf, remaining_buf_size, &golden_frame);
if (res < 0)
if (res < 0) {
int i;
for (i = 0; i < 4; i++) {
if (s->frames[i].data[0])
avctx->release_buffer(avctx, &s->frames[i]);
}
return res;
}
if (res == VP56_SIZE_CHANGE) {
int i;