From 6933b322d89ad81fc9ed091d4ea4327ac0186078 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 31 May 2017 22:53:02 +0200 Subject: [PATCH] avcodec/wavpack: Fix runtime error: signed integer overflow: 2013265955 - -134217694 cannot be represented in type 'int' Fixes: 1922/clusterfuzz-testcase-minimized-5561194112876544 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer (cherry picked from commit a47273c803edfbc43793349b74429ae29b05c003) Signed-off-by: Michael Niedermayer --- libavcodec/wavpack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 572b33d232..1b537d8b7a 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -239,7 +239,7 @@ static int wv_get_value(WavpackFrameContext *ctx, GetBitContext *gb, if (get_bits_left(gb) <= 0) goto error; if (get_bits1(gb)) { - add -= (mid - base); + add -= (mid - (unsigned)base); base = mid; } else add = mid - base - 1;