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hevc: use av_mallocz() for allocating tab_ipm

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Fixes use of uninitialized memory and out of stack array read.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
This commit is contained in:
Michael Niedermayer
2014-01-11 20:23:51 +01:00
committed by Vittorio Giovara
parent 920c01adce
commit 6cc94e9719
1 changed files with 1 additions and 1 deletions
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libavcodec/hevc.c
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@ -212,7 +212,7 @@ static int pic_arrays_init(HEVCContext *s, const HEVCSPS *sps)
goto fail; goto fail;
s->cbf_luma = av_malloc(sps->min_tb_width * sps->min_tb_height); s->cbf_luma = av_malloc(sps->min_tb_width * sps->min_tb_height);
s->tab_ipm = av_malloc(min_pu_size); s->tab_ipm = av_mallocz(min_pu_size);
s->is_pcm = av_malloc(min_pu_size); s->is_pcm = av_malloc(min_pu_size);
if (!s->tab_ipm || !s->cbf_luma || !s->is_pcm) if (!s->tab_ipm || !s->cbf_luma || !s->is_pcm)
goto fail; goto fail;