From 112eb17a2bbf6d02f81fdf0743b353a6b010aedc Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 8 Jun 2019 09:27:49 +0200 Subject: avformat/wsddec: Fix undefined shift Fixes: left shift of 1 by 31 places cannot be represented in type 'int' Fixes: 15123/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5738039235575808 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/wsddec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'libavformat/wsddec.c') diff --git a/libavformat/wsddec.c b/libavformat/wsddec.c index dfa8014..574addf 100644 --- a/libavformat/wsddec.c +++ b/libavformat/wsddec.c @@ -137,7 +137,7 @@ static int wsd_read_header(AVFormatContext *s) if (!(channel_assign & 1)) { int i; for (i = 1; i < 32; i++) - if (channel_assign & (1 << i)) + if ((channel_assign >> i) & 1) st->codecpar->channel_layout |= wsd_to_av_channel_layoyt(s, i); } -- cgit v1.1