From a9d50bb578ec04c085a25f1e023f75e0e4499d5e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Storsj=C3=B6?= Date: Thu, 19 Sep 2013 15:12:06 +0300 Subject: [PATCH] dcadec: Validate the lfe parameter MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö --- libavcodec/dcadec.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c index 209bca34ff..2676c5904f 100644 --- a/libavcodec/dcadec.c +++ b/libavcodec/dcadec.c @@ -580,6 +580,11 @@ static int dca_parse_frame_header(DCAContext *s) s->lfe = get_bits(&s->gb, 2); s->predictor_history = get_bits(&s->gb, 1); + if (s->lfe > 2) { + av_log(s->avctx, AV_LOG_ERROR, "Invalid LFE value: %d\n", s->lfe); + return AVERROR_INVALIDDATA; + } + /* TODO: check CRC */ if (s->crc_present) s->header_crc = get_bits(&s->gb, 16);