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 ESMTPS id 9EAEE4EABD for ; Mon, 12 May 2025 23:59:19 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 16C95687DC6; Tue, 13 May 2025 02:58:58 +0300 (EEST) Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 8C48A687D4B for ; Tue, 13 May 2025 02:58:37 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id CE33243229 for ; Mon, 12 May 2025 23:58:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1747094317; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=RYnndbIafSaw3cYZmK+fKQHYaLOac6BvE74hk3IW64I=; b=UAT/NauBAjwH9u9kZoAkziQwtCKJh3nTKflOKD5n57M9hHvlkEp1y1tHT/oEAhbCdr3AW9 H8fJs8cME3n+rM/GAIaYcPVVY8DGzWHunjKUrM9ES4mpkTob46GjjEOANtFb8VFKoYkldH iIlf+gms05FPUWTbsjU7y1LlU3y3wwnXm9lMBjCN0qKTSumRX/GtwG579zJhpT80Oz2FUD RbXWlb/G4y30xdWTvmF8wgcCNEPcowqmK51CVHsMjF85D0Iu6xrqt7oAcairr3/JvyoitE ZZFZJRpn5Eegd7u/B6eK4cTAUrfWb8TtndfSbacJCPI/MSLRveuYtg7rVtL/ow== From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Tue, 13 May 2025 01:58:31 +0200 Message-ID: <20250512235832.361422-4-michael@niedermayer.cc> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250512235832.361422-1-michael@niedermayer.cc> References: <20250512235832.361422-1-michael@niedermayer.cc> MIME-Version: 1.0 X-GND-State: clean X-GND-Score: -85 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdeftddvieegucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenfghrlhcuvffnffculdduhedmnecujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpefoihgthhgrvghlucfpihgvuggvrhhmrgihvghruceomhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtqeenucggtffrrghtthgvrhhnpeegjefhteeghffgledugedvuddvffegfedvtdehteelhfeuiedtveffveefheehgfenucffohhmrghinhepghhithhhuhgsrdgtohhmnecukfhppeeguddrieeirdeijedruddufeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeguddrieeirdeijedruddufedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtpdhnsggprhgtphhtthhopedupdhrtghpthhtohepfhhfmhhpvghgqdguvghvvghlsehffhhmphgvghdrohhrgh X-GND-Sasl: michael@niedermayer.cc Subject: [FFmpeg-devel] [PATCH 4/5] avformat/matroskadec: check that channels fit in signed 32bit int 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 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: -1384566925600903168 * 16 cannot be represented in type 'long' Fixes: 407069502/clusterfuzz-testcase-minimized-ffmpeg_dem_WEBM_DASH_MANIFEST_fuzzer-5159255372267520 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/matroskadec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index d4b7ae112cc..29e35e6dd4d 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -2842,6 +2842,8 @@ static int mka_parse_audio(MatroskaTrack *track, AVStream *st, par->sample_rate = track->audio.out_samplerate; // channel layout may be already set by codec private checks above if (!av_channel_layout_check(&par->ch_layout)) { + if (track->audio.channels > INT32_MAX) + return AVERROR_PATCHWELCOME; par->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC; par->ch_layout.nb_channels = track->audio.channels; } -- 2.49.0 _______________________________________________ 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".