From patchwork Mon Aug 12 00:17:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 14426 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 246CC449F01 for ; Mon, 12 Aug 2019 03:19:14 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 1577E68AB79; Mon, 12 Aug 2019 03:19:14 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe05-1.mx.upcmail.net (vie01a-dmta-pe05-1.mx.upcmail.net [84.116.36.11]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id C10576801DD for ; Mon, 12 Aug 2019 03:19:06 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-pe05.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1hwy3G-0009CP-4P for ffmpeg-devel@ffmpeg.org; Mon, 12 Aug 2019 02:19:06 +0200 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id wy2GhgfbXwlyswy2Gh29ea; Mon, 12 Aug 2019 02:18:04 +0200 X-Env-Mailfrom: michael@niedermayer.cc X-Env-Rcptto: ffmpeg-devel@ffmpeg.org X-SourceIP: 213.47.41.20 X-CNFS-Analysis: v=2.3 cv=E5OzWpVl c=1 sm=1 tr=0 a=I1eytVlZLDX1BM2VTtTtSw==:117 a=I1eytVlZLDX1BM2VTtTtSw==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=ZZnuYtJkoWoA:10 a=nZOtpAppAAAA:20 a=UO8gc-iLL8CMi2fcbjgA:9 a=1fhp2MxaeJtTNGEnv6mo:22 a=Z5ABNNGmrOfJ6cZ5bIyy:22 a=bWyr8ysk75zN3GCy5bjg:22 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Mon, 12 Aug 2019 02:17:14 +0200 Message-Id: <20190812001719.9247-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-CMAE-Envelope: MS4wfGXOnVqF0qvFMZGKXJUcfxxqwKCBs1Ox5HFhTAZlRJPvG5Rmo/b2npotT1ifTR6wePSQpaAMxMMYWDBkfKxV3DBU2S4e6sNF1LOn+qzcGrFqS+gCeKhB 0qQ+3m2USlxRBdDZqYMpL8yAk9aeGMocWdNa+EOFZcEKbBWIkZ+/oZZW Subject: [FFmpeg-devel] [PATCH 1/6] avcodec/tta: Fix integer overflow in prediction X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Fixes: signed integer overflow: -395281576 + -1827578048 cannot be represented in type 'int' Fixes: 16038/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5646109705240576 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/tta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/tta.c b/libavcodec/tta.c index 4d27fcd555..ec2a9c3a43 100644 --- a/libavcodec/tta.c +++ b/libavcodec/tta.c @@ -227,7 +227,7 @@ static int tta_decode_frame(AVCodecContext *avctx, void *data, GetBitContext gb; int i, ret; int cur_chan = 0, framelen = s->frame_length; - int32_t *p; + uint32_t *p; if (avctx->err_recognition & AV_EF_CRCCHECK) { if (buf_size < 4 ||