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 2ECF844470 for ; Fri, 7 Jun 2024 00:32:36 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id AD51868D734; Fri, 7 Jun 2024 03:32:25 +0300 (EEST) Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id BA38C68D6EF for ; Fri, 7 Jun 2024 03:32:18 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 017991BF204 for ; Fri, 7 Jun 2024 00:32:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1717720338; 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=iqZaf2iM6l5Om/iKlT5CPF7QSiJy6G0GnsIHfHnZi6s=; b=Sqk13b9870hj34BPREbhrfVc5EbZg1enX1HKSc8pMLMbWqCTI5/i9w2IHJDEg/K+XguNWx DBFt8EAJzgWy8GwcrCpDTqNMaecPoYlhAZIsR0Db9z8bRLJOe5LGZYvhec8ZpWMdhoinph aMyoBJMlmufhxHJeYwaDFh67SNa+wKeGdgk792skexsu6ztLII23iWWbiEiCuk8FMpnEbe ZKtbhSclSsO4eOHO4kusE7/9GUlbfz37NsE/3IFCb/MHuVrbgOPvoehbv8RsmPn36bi1dR tXTGsAZNcgHhlm36tmUnpqbjyZK2hxWrtsafM+0DoTeuMk98NOCrWpalpN4EIA== From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Fri, 7 Jun 2024 02:32:12 +0200 Message-ID: <20240607003215.1723906-2-michael@niedermayer.cc> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240607003215.1723906-1-michael@niedermayer.cc> References: <20240607003215.1723906-1-michael@niedermayer.cc> MIME-Version: 1.0 X-GND-Sasl: michael@niedermayer.cc Subject: [FFmpeg-devel] [PATCH 2/5] avformat/mpeg: Check len in mpegps_probe() 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: CID1473590 Untrusted loop bound Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer --- libavformat/mpeg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c index 5556861e1c4..c3dff3e4ea2 100644 --- a/libavformat/mpeg.c +++ b/libavformat/mpeg.c @@ -76,6 +76,9 @@ static int mpegps_probe(const AVProbeData *p) int pes = endpes <= i && check_pes(p->buf + i, p->buf + p->buf_size); int pack = check_pack_header(p->buf + i); + if (len > INT_MAX - i) + break; + if (code == SYSTEM_HEADER_START_CODE) sys++; else if (code == PACK_START_CODE && pack) -- 2.45.2 _______________________________________________ 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".