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avcodec/hevc: clear HEVClc when its deallocated in hevc_decode_free() 

Fixes reading freed memory
Fixes: asan_heap-uaf_1abf8ef_3987_NUT_A_ericsson_4.bit
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-31 15:18:47 +01:00
parent 97fca5492a
commit 21a2fb7e05
1 changed files with 2 additions and 0 deletions
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2
libavcodec/hevc.c
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@ -2728,6 +2728,8 @@ static av_cold int hevc_decode_free(AVCodecContext *avctx)
av_freep(&s->sList[i]);
}
}
if (s->HEVClc == s->HEVClcList[0])
s->HEVClc = NULL;
av_freep(&s->HEVClcList[0]);
for (i = 0; i < s->nals_allocated; i++)