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avcodec/utils: Clear dimensions in ff_get_buffer() on failure

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Fixes out of array access
Fixes: 482d8f2fd17c9f532b586458a33f267c/asan_heap-oob_4a52b6_7417_1d08d477736d66cdadd833d146bb8bae.mov

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-11-28 20:08:46 +01:00
parent 4f03bebc79
commit abee0a1c60
1 changed files with 3 additions and 1 deletions
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4
libavcodec/utils.c
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@ -888,8 +888,10 @@ end:
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
{
int ret = get_buffer_internal(avctx, frame, flags);
if (ret < 0)
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
frame->width = frame->height = 0;
}
return ret;
}