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swscale/yuv2rgb: Increase YUV2RGB table headroom

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This makes SWS more robust
Fixes: 07650a772d98aa63b0fed6370dc89037/asan_heap-oob_27ddeaf_2657_2c81ff264dee5d9712cb3251fb9c3bbb.264
Fixes: out of array read

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8f3a9a8c27)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-01-14 03:05:11 +01:00
parent c781a1e14b
commit 1fd9556062
1 changed files with 2 additions and 2 deletions
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4
libswscale/swscale_internal.h
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@ -39,8 +39,8 @@
#define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long
#define YUVRGB_TABLE_HEADROOM 256
#define YUVRGB_TABLE_LUMA_HEADROOM 0
#define YUVRGB_TABLE_HEADROOM 512
#define YUVRGB_TABLE_LUMA_HEADROOM 512
#define MAX_FILTER_SIZE SWS_MAX_FILTER_SIZE