From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C2C582AB54 for ; Mon, 16 Oct 2023 19:49:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="JsWsXFp7" Received: from mail-ot1-x335.google.com (mail-ot1-x335.google.com [IPv6:2607:f8b0:4864:20::335]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23AA1F5 for ; Mon, 16 Oct 2023 12:49:29 -0700 (PDT) Received: by mail-ot1-x335.google.com with SMTP id 46e09a7af769-6c7ce16ddfaso3433546a34.3 for ; Mon, 16 Oct 2023 12:49:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1697485768; x=1698090568; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=TDEvoDDFlhaScQdoPW2tJhTzTU/5dfUG14nxqzDs2yA=; b=JsWsXFp7B+tTYU2ItV0yg6gp2M0FieKyfLU1u65a9OD1zULLXTI9IUZjcTP7nPF7Cn YSCdjyak05QNzkxjgILMkBBeuFuaEDcGmtspaaZ0UkOdFWCCO9Y+CEAiN6jstBqMGYAA 5fy3L2H023WgcLg5FJNBOoKl/Kgvhf3HtIiXQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697485768; x=1698090568; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=TDEvoDDFlhaScQdoPW2tJhTzTU/5dfUG14nxqzDs2yA=; b=ralxQ58nJrGqHQkBq26uZNOat1dgcXgzHAi0F7fdvZekn59XJ+Wb58P8LBKaDufG6l q82CD2HbY7tg6jV4tdVXP7Qzz+NgEfNWu/6eJCPidxxl6nPN4mY5GTIeXUEba5tkQJWl IvXEV1NCWp470d77Ga45w40CEkG4Y561mgVvZRi5gdG0xwJNmKWl3P5XDe41Q+ewkOgX ZKkPk4/d7UxGUbfOZ3JMW1chGFrEbe0zM7pqmon9tvEWFy/XyXRMdQmotKZWPFXwTCed 1f3wNSr0J70yYzr1HT0EeFeaBioRO/vHQG+eSNjgquwX7/YefghhGpQ1GfMb3Ig5ayW2 e8+A== X-Gm-Message-State: AOJu0YwubFSM6YVkRFi4XPfwpbVUfbZW80anyW4cq9Pc1qI01GLh83RJ bk8iMkUH7iRIviIeIRGYjgORZA== X-Google-Smtp-Source: AGHT+IGzztkRAoioNbwxGtaNyJL8FtTv0uRRmTERYsx7mf9E05Z0DIj6n8vDcTI8S1PZr6xfpA678g== X-Received: by 2002:a9d:6d9a:0:b0:6b8:807b:b50 with SMTP id x26-20020a9d6d9a000000b006b8807b0b50mr221886otp.22.1697485768484; Mon, 16 Oct 2023 12:49:28 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id v67-20020a626146000000b00690d1269691sm309260pfb.22.2023.10.16.12.49.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Oct 2023 12:49:27 -0700 (PDT) Date: Mon, 16 Oct 2023 12:49:27 -0700 From: Kees Cook To: Kartik Cc: thierry.reding@gmail.com, jonathanh@nvidia.com, andy@kernel.org, akpm@linux-foundation.org, arnd@arndb.de, ulf.hansson@linaro.org, linus.walleij@linaro.org, pshete@nvidia.com, petlozup@nvidia.com, frank.li@vivo.com, robh@kernel.org, stefank@nvidia.com, pdeschrijver@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v5 1/8] mm/util: Introduce kmemdup_array() Message-ID: <202310161249.A59D2AE2@keescook> References: <20231016053411.3380-1-kkartik@nvidia.com> <20231016053411.3380-2-kkartik@nvidia.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231016053411.3380-2-kkartik@nvidia.com> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net On Mon, Oct 16, 2023 at 11:04:04AM +0530, Kartik wrote: > Introduce kmemdup_array() API to duplicate `n` number of elements > from a given array. This internally uses kmemdup to allocate and duplicate > the `src` array. > > Signed-off-by: Kartik Acked-by: Kees Cook -- Kees Cook