From a1cbf53c566b84a5974f516076cbc36c188f6d08 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 21 May 2017 23:35:21 +0200 Subject: [PATCH] avcodec/dct32_template: Fix runtime error: signed integer overflow: -1071326067 - 1088238847 cannot be represented in type 'int' Fixes: 1731/clusterfuzz-testcase-minimized-5123972414832640 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/dct32_template.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/dct32_template.c b/libavcodec/dct32_template.c index bb3f1553ac..51cebc053f 100644 --- a/libavcodec/dct32_template.c +++ b/libavcodec/dct32_template.c @@ -123,8 +123,9 @@ #define ADD(a, b) val##a += val##b /* DCT32 without 1/sqrt(2) coef zero scaling. */ -void dct32(INTFLOAT *out, const INTFLOAT *tab) +void dct32(INTFLOAT *out, const INTFLOAT *tab_arg) { + const SUINTFLOAT *tab = tab_arg; SUINTFLOAT tmp0, tmp1; SUINTFLOAT val0 , val1 , val2 , val3 , val4 , val5 , val6 , val7 ,