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avcodec/asvdec: Use rounded up dimenensions in input size check

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Fixes: Timeout
Fixes: 2001/clusterfuzz-testcase-minimized-6187599389523968

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-01 20:42:30 +02:00
parent 8b3e580b7f
commit adb4854aac
1 changed files with 1 additions and 1 deletions
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2
libavcodec/asvdec.c
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@ -210,7 +210,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVFrame *const p = data; AVFrame *const p = data;
int mb_x, mb_y, ret; int mb_x, mb_y, ret;
if (buf_size * 8LL < a->mb_height2 * a->mb_width2 * 13LL) if (buf_size * 8LL < a->mb_height * a->mb_width * 13LL)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
if ((ret = ff_get_buffer(avctx, p, 0)) < 0) if ((ret = ff_get_buffer(avctx, p, 0)) < 0)