From ea71a48c7e8a76ee447fa518cca087df9288288d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 24 May 2017 00:21:21 +0200 Subject: avcodec/wavpack: Fix runtime error: left shift of negative value -14778 Fixes: 1778/clusterfuzz-testcase-minimized-5128953268273152 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/wavpack.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'libavcodec/wavpack.c') diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 20774e61d2..3b3c6b2d16 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -113,10 +113,10 @@ static int update_error_limit(WavpackFrameContext *ctx) if (ctx->stereo_in && ctx->hybrid_bitrate) { int balance = (sl[1] - sl[0] + br[1] + 1) >> 1; if (balance > br[0]) { - br[1] = br[0] << 1; + br[1] = br[0] * 2; br[0] = 0; } else if (-balance > br[0]) { - br[0] <<= 1; + br[0] *= 2; br[1] = 0; } else { br[1] = br[0] + balance; -- cgit v1.2.3