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avcodec/hevcpred_template: also initialize top[-1] for constrained intra prediction
author
Michael Niedermayer
<michaelni@gmx.at>
Sun, 2 Mar 2014 20:17:48 +0000
(21:17 +0100)
committer
Michael Niedermayer
<michaelni@gmx.at>
Sun, 2 Mar 2014 20:23:40 +0000
(21:23 +0100)
Fixes out of array read
Fixes:
387713a12dc5cfa27fcb4178084ce1ea
-asan_stack-oob_131176a_1182_cov_3861068719_CAINIT_C_SHARP_3.bit
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/hevcpred_template.c
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diff --git
a/libavcodec/hevcpred_template.c
b/libavcodec/hevcpred_template.c
index
5ba9591
..
1d83249
100644
(file)
--- a/
libavcodec/hevcpred_template.c
+++ b/
libavcodec/hevcpred_template.c
@@
-155,6
+155,7
@@
static void FUNC(intra_pred)(HEVCContext *s, int x0, int y0, int log2_size, int
left[i] = 128;
top[i] = 128;
}
+ top[-1] = 128;
}
if (cand_bottom_left) {
for (i = size + bottom_left_size; i < (size << 1); i++)