From patchwork Fri Feb 15 00:57:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 12079 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 C794344858F for ; Fri, 15 Feb 2019 02:58:36 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id A24EB68086D; Fri, 15 Feb 2019 02:58:36 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe05-2.mx.upcmail.net (vie01a-dmta-pe05-2.mx.upcmail.net [84.116.36.12]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 93C1F688362 for ; Fri, 15 Feb 2019 02:58:30 +0200 (EET) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-pe05.mx.upcmail.net with esmtp (Exim 4.88) (envelope-from ) id 1guRpm-0006JW-0L for ffmpeg-devel@ffmpeg.org; Fri, 15 Feb 2019 01:58:30 +0100 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id uRoogkHXG2WSsuRoogartU; Fri, 15 Feb 2019 01:57:30 +0100 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=E7kcWpVl 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=3CGTBCtr5XpZMbuenYQA:9 a=1fhp2MxaeJtTNGEnv6mo:22 a=pHzHmUro8NiASowvMSCR:22 a=nt3jZW36AmriUCFCBwmW:22 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Fri, 15 Feb 2019 01:57:09 +0100 Message-Id: <20190215005709.15250-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CMAE-Envelope: MS4wfBQkZAxm+wlyKl4g00+UT1npegaoH1px95xkSI0J2t++z3nCvjtcl/2pJnk64OMx2HeqPbiAYdVbriptzENeBJ8k4vgaJ1cekE7WP3CNoWeiP2nqtGxh hij+EnFZHEMYEnPOe6XWqyXO1AGx3hLc06VZlkQDRg7enVMKgewV5I5v Subject: [FFmpeg-devel] [PATCH] avcodec/mpeg4videodec: Clear interlaced_dct for studio profile 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: Out of array access Fixes: 13090/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-5408668986638336 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/mpeg4videodec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c index f44ee76bd4..ecd028a87c 100644 --- a/libavcodec/mpeg4videodec.c +++ b/libavcodec/mpeg4videodec.c @@ -3057,6 +3057,7 @@ static int decode_studio_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb) return 0; s->partitioned_frame = 0; + s->interlaced_dct = 0; s->decode_mb = mpeg4_decode_studio_mb; decode_smpte_tc(ctx, gb);