From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id BB5B843381 for ; Sat, 2 Jul 2022 12:23:02 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id CA17F68B8C8; Sat, 2 Jul 2022 15:22:59 +0300 (EEST) Received: from vie01a-dmta-at03-2.mx.upcmail.net (vie01a-dmta-at03-2.mx.upcmail.net [62.179.121.152]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id E71E568B873 for ; Sat, 2 Jul 2022 15:22:52 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-at03.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1o7c9E-006n2u-18 for ffmpeg-devel@ffmpeg.org; Sat, 02 Jul 2022 14:22:52 +0200 Received: from ren-mail-psmtp-mg02. ([80.109.253.241]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id 7c3foncuz8s8U7c9Dob2hi; Sat, 02 Jul 2022 14:22:51 +0200 Received: from localhost ([213.47.68.29]) by ren-mail-psmtp-mg02. with ESMTP id 7c9ConlRp8eSW7c9DonhTk; Sat, 02 Jul 2022 14:22:51 +0200 X-Env-Mailfrom: michael@niedermayer.cc X-Env-Rcptto: ffmpeg-devel@ffmpeg.org X-SourceIP: 213.47.68.29 X-CNFS-Analysis: v=2.4 cv=KKE5sHJo c=1 sm=1 tr=0 ts=62c0389b a=2hcxjKEKjp0CzLx6oWAm4g==:117 a=2hcxjKEKjp0CzLx6oWAm4g==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=NEAV23lmAAAA:8 a=W5tCvb14_zafgFN4A8AA:9 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 2 Jul 2022 14:22:48 +0200 Message-Id: <20220702122250.23065-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 X-CMAE-Envelope: MS4wfC2yFQX4RTIzLbpsJxErt+ktfF+oPGCCBkviLiW2fkc7ZOVY5w+O6uqW1/fibUTUo9evbtm680Gz9ognlJWhOemr18Rdel3xmnfr5W9CxR/X33bfM4B3 V7CuyE04unelaShettULJpObRAM/QSiYA5bmGob3PwsbiNm/BMD9ito+g0spts82zYWiH+O7VvS0rg== Subject: [FFmpeg-devel] [PATCH 1/3] avcodec/alsdec: No channels cannot be accessed X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 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 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: Fixes: out of array access Fixes: 48145/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5054524173189120 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/alsdec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index bf961a03f5..7031fa0acb 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -361,6 +361,9 @@ static av_cold int read_specific_config(ALSDecContext *ctx) return AVERROR_PATCHWELCOME; } + if (avctx->ch_layout.nb_channels == 0) + return AVERROR_INVALIDDATA; + ctx->cur_frame_length = sconf->frame_length; // read channel config -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".