From 24e95f9d4de012f51fdd5767dff0b3142e13ec3a Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 23 Jun 2017 01:58:48 +0200 Subject: [PATCH] avcodec/wavpack: Fix integer overflow Fixes: runtime error: signed integer overflow: 227511904 + 1964113935 cannot be represented in type 'int' Fixes: 2331/clusterfuzz-testcase-minimized-6182185830711296 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg 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 ac43c13da5..e127c272a9 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -225,7 +225,7 @@ static int wv_get_value(WavpackFrameContext *ctx, GetBitContext *gb, INC_MED(1); DEC_MED(2); } else { - base = GET_MED(0) + GET_MED(1) + GET_MED(2) * (t - 2); + base = GET_MED(0) + GET_MED(1) + GET_MED(2) * (t - 2U); add = GET_MED(2) - 1; INC_MED(0); INC_MED(1);