From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC59FC433EF for ; Thu, 24 Mar 2022 10:23:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349481AbiCXKY6 (ORCPT ); Thu, 24 Mar 2022 06:24:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243273AbiCXKYy (ORCPT ); Thu, 24 Mar 2022 06:24:54 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E10225C40 for ; Thu, 24 Mar 2022 03:23:22 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id mp6-20020a17090b190600b001c6841b8a52so9033639pjb.5 for ; Thu, 24 Mar 2022 03:23:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=6hR2jbQSg4CSVD3f4OWHAyVNhhJ8Mh8GIYUAWVOX8mI=; b=lDRfzFWKN+5QH11AqFkY+X0pvWQbEiGu6cKjWqwqTw1H/Ust18pn80OYh+WDRmxqiU oOkEV1BTuW9pjT9LGHs6Z7H6LCFIuGQ2PqHzLqmOIrQKVI/8Ir1D6J0s2dntoNargGnd IaD1eOS/3kr5X44JQDlm4bMfFE/QvjHEexKs8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=6hR2jbQSg4CSVD3f4OWHAyVNhhJ8Mh8GIYUAWVOX8mI=; b=rnXo/qndmpIi0UlXZHCgyCSradiJdLDhcwtc/NI3FtcBIHmR4Z8pCETFvq8QX0eQ1E 7MHBt0SWdGRgkLl9fLDJC0OIBZfqW4rLbAOpINlCd59awtaUvheYnMmLPBywYb8mzeiR mBO+UxcfUN1MkFslWA/DO9Cvs86YIHw+AT7Nz+DYX5cOGSIaovKcw6KnvQItksBkKDA1 qLOPThsJgFXiLp/0VwiSTYCsesfGavTk9M9XycF0h/V9n5FpqOJwWugx0hGKsmvvnD4z OVoUKIz81Df47nm9/PNL/Gj6vIA6JoD2WIjGCalKoJT/hw185hMQ15iOVMuqxhhIGU4f x4Lw== X-Gm-Message-State: AOAM531JHXY67FSPo/aX5oyK5KIB5j4m7Z5DTRB2alqrerUM7tHc7fp8 Ivyt+MySPjMCwiNX6PuUSSyQtA== X-Google-Smtp-Source: ABdhPJxq+/6bheF0HDrYCcPoo4W5reCHHq/NFJ/3QA9yOmyTPlanPgLY0yPNXRyzPODHB0KRBx8MhQ== X-Received: by 2002:a17:902:c652:b0:154:2920:df6d with SMTP id s18-20020a170902c65200b001542920df6dmr4906472pls.146.1648117401888; Thu, 24 Mar 2022 03:23:21 -0700 (PDT) Received: from google.com ([2401:fa00:8f:203:f22a:8f8e:aca1:9b8c]) by smtp.gmail.com with ESMTPSA id rm5-20020a17090b3ec500b001c7559762e9sm9066552pjb.20.2022.03.24.03.23.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Mar 2022 03:23:21 -0700 (PDT) Date: Thu, 24 Mar 2022 19:23:16 +0900 From: Sergey Senozhatsky To: Hangyu Hua Cc: mchehab@kernel.org, senozhatsky@chromium.org, caihuoqing@baidu.com, hverkuil-cisco@xs4all.nl, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] media: dvb_vb2: fix possible out of bound access Message-ID: References: <20220324080119.40133-1-hbh25y@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220324080119.40133-1-hbh25y@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (22/03/24 16:01), Hangyu Hua wrote: > vb2_core_qbuf and vb2_core_querybuf don't check the range of b->index > controlled by the user. > > Fix this by adding range checking code before using them. > > Signed-off-by: Hangyu Hua Reviewed-by: Sergey Senozhatsky