From 9726e9f80934202e761870e95d40e8c591208459 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 23 May 2017 03:24:49 +0200 Subject: [PATCH] avcodec/ffv1dec_template: Fix runtime error: signed integer overflow: 202 + 2147483615 cannot be represented in type 'int' Fixes: 1748/clusterfuzz-testcase-minimized-6690208340770816 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/ffv1dec_template.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/ffv1dec_template.c b/libavcodec/ffv1dec_template.c index 21af155bba..36cfba9560 100644 --- a/libavcodec/ffv1dec_template.c +++ b/libavcodec/ffv1dec_template.c @@ -98,7 +98,7 @@ static av_always_inline void RENAME(decode_line)(FFV1Context *s, int w, if (sign) diff = -diff; - sample[1][x] = av_mod_uintp2(RENAME(predict)(sample[1] + x, sample[0] + x) + diff, bits); + sample[1][x] = av_mod_uintp2(RENAME(predict)(sample[1] + x, sample[0] + x) + (SUINT)diff, bits); } s->run_index = run_index; }