From ef73b0da2df22f5f589692961d17d2294cd2a457 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 13 Jun 2019 19:45:50 +0200 Subject: [PATCH] avcodec/truemotion2: Fix integer overflow in last loop in tm2_update_block() Fixes: signed integer overflow: -1727985666 - 538976288 cannot be represented in type 'int' Fixes: 15031/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5100228035739648 Signed-off-by: Michael Niedermayer (cherry picked from commit 3aecd0170413c7e56f19de4e34d093a2c4027c2a) Signed-off-by: Michael Niedermayer --- libavcodec/truemotion2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c index 8936741c6c..e1e9f63397 100644 --- a/libavcodec/truemotion2.c +++ b/libavcodec/truemotion2.c @@ -672,7 +672,7 @@ static inline void tm2_still_block(TM2Context *ctx, AVFrame *pic, int bx, int by static inline void tm2_update_block(TM2Context *ctx, AVFrame *pic, int bx, int by) { int i, j; - int d; + unsigned d; TM2_INIT_POINTERS_2(); /* update chroma */