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 A58B2430D9 for ; Sun, 18 Sep 2022 17:15:53 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id E8AF968BBDC; Sun, 18 Sep 2022 20:14:29 +0300 (EEST) Received: from vie01a-dmta-at02-1.mx.upcmail.net (vie01a-dmta-at02-1.mx.upcmail.net [62.179.121.148]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 4D99568BB45 for ; Sun, 18 Sep 2022 20:14:14 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-at02.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1oZxrx-0047Wn-Re for ffmpeg-devel@ffmpeg.org; Sun, 18 Sep 2022 19:14:13 +0200 Received: from ren-mail-psmtp-mg02. ([80.109.253.241]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id Zxruom0288s8UZxrxoH67I; Sun, 18 Sep 2022 19:14:13 +0200 Received: from localhost ([213.47.68.29]) by ren-mail-psmtp-mg02. with ESMTP id Zxrxo4StAbZLDZxrxoJKIG; Sun, 18 Sep 2022 19:14:13 +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=Ufwy9IeN c=1 sm=1 tr=0 ts=632751e5 a=2hcxjKEKjp0CzLx6oWAm4g==:117 a=2hcxjKEKjp0CzLx6oWAm4g==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=NEAV23lmAAAA:8 a=X31LuYFbodU6tBhASqYA:9 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sun, 18 Sep 2022 19:14:10 +0200 Message-Id: <20220918171410.31835-13-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220918171410.31835-1-michael@niedermayer.cc> References: <20220918171410.31835-1-michael@niedermayer.cc> X-CMAE-Envelope: MS4wfDbd5uOikFynSxtcRSdV7B3YQPfN2yNcUeVdyOi4L3ghKPwe+KsDCRHWPewzwA6ZXI/LKiigtVT6JaMIl7D9ww+3Q/YDzAQDFndgBv6UaCoz7qpVmUB+ OrpG0F5oIbKBJgD0erQayN25JT8fyhKT9+BX1xm1xHWmkhhnD9IXDr8VGVs2BXRyhRinhQD652Hdjg== Subject: [FFmpeg-devel] [PATCH 13/13] avformat/westwood_vqa: Check chunk size 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: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_WSVQA_fuzzer-6593408795279360 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/westwood_vqa.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/westwood_vqa.c b/libavformat/westwood_vqa.c index e3d2e2668c4..bd8df5e0b34 100644 --- a/libavformat/westwood_vqa.c +++ b/libavformat/westwood_vqa.c @@ -274,6 +274,8 @@ static int wsvqa_read_packet(AVFormatContext *s, return AVERROR(EIO); /* the decoder expects chunks to be 16-bit aligned */ + if (wsvqa->vqfl_chunk_size == INT_MAX) + return AVERROR_INVALIDDATA; if (wsvqa->vqfl_chunk_size % 2 == 1) wsvqa->vqfl_chunk_size++; -- 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".