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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0F65210FCAC9 for ; Wed, 1 Apr 2026 19:28:26 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 623F16B0005; Wed, 1 Apr 2026 15:28:26 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5D49D6B008A; Wed, 1 Apr 2026 15:28:26 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4EA226B008C; Wed, 1 Apr 2026 15:28:26 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 3FDE16B0005 for ; Wed, 1 Apr 2026 15:28:26 -0400 (EDT) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id C67244C03F for ; Wed, 1 Apr 2026 19:28:25 +0000 (UTC) X-FDA: 84610973370.28.2B50A12 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf19.hostedemail.com (Postfix) with ESMTP id 01DF11A000C for ; Wed, 1 Apr 2026 19:28:23 +0000 (UTC) Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=lNbFpRGJ; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf19.hostedemail.com: domain of kees@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=kees@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1775071704; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=vSg/N27waNOMYzpjYpPHkKZa6c5gQlQNNMBfj5Ys52A=; b=kx7mNcDpcnYphh2vemLRLgZtDjaoHE6PGpoY+ky+VwVmkpHdAyUyrSIiA8Inxlq/YeRJTj BeYhQAO7uHwhBgSt0CMBjrkTKD2ucPQev5p5ueNeUf3vvOmNY/Xzc1tV0qk+CXBqAfHRmK GY4uHtrS0JprKLmLV+VMCRNq/vtAc1U= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1775071704; a=rsa-sha256; cv=none; b=ELLrMZgOpH6jDWsIKSb4o2casxUsUhscwffHp3DKcs8Nu/XMAaEsuB0kGzJ8eY8lFH6Zkl 4KiQKbgJgu07wKZ9w4SC/Xi6TkfkUgoWgaUAVl5pMx4EJHUyZILefUsnYYHMA4B44B+dl1 /4lWu7IF/4xSkw4vSAZa3+ZaYcIenNM= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=lNbFpRGJ; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf19.hostedemail.com: domain of kees@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=kees@kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id EFAC044349; Wed, 1 Apr 2026 19:28:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB3D3C4CEF7; Wed, 1 Apr 2026 19:28:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775071702; bh=fme8hyEq6LPmNJncesjibWSiJqsBbRwNp/PF6ClVQXo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lNbFpRGJl4xmGCqsJNjNwi7sck8ydvYFdoECaM+MI8+60dcA/yHsKwt6QrZ37uHXq Ihkwn6X/Emc+wPN7z05vDcXTgFd2l0gLBPetCJ4Nk4KYlrNi3LI5jmFjvXvYHUaxRG Ys6VuPShFGK4/6DKUIQ4Eua4SCmW3Xlw++iaDEX+fot9zXt03E4H463WCyMkW/YjJR g+p/W7Grymw6Dl7CrJqLy5eceN5Xq7VT+JhE8t4OhbI8+hjY5dBbrHdE5TCu2q1kM3 bck3YUxwwrPbPp5E5ipAPgqv2o3KpZRHi1WoKIaYoU2Amhfg4PINjIVQ2RMeN6Blm3 2rBxRXchglkcQ== From: Kees Cook To: Alexander Viro , Christian Brauner , Jan Kara , Thorsten Blum Cc: Kees Cook , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] exec: use strnlen() in __set_task_comm Date: Wed, 1 Apr 2026 12:28:17 -0700 Message-Id: <177507169460.2890967.1588878662313985569.b4-ty@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260401152039.724811-3-thorsten.blum@linux.dev> References: <20260401152039.724811-3-thorsten.blum@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 01DF11A000C X-Stat-Signature: ufboarwr3tkeirsf565qm4brtf9yz6qu X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1775071703-720210 X-HE-Meta: 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 qXruGH74 4rE7k5yr7EVmIef9IZ+txLL+EACurqv5c8aOm9lZFeqDvvO9TBGG3tPJUrsHzZdxNfg48NEshv/fxdz9fIClcCKGbdUH/J5nlKzdGTEdAl30BsZVpK41Md1D45WUheWZnqyUOXCna2KPbtwBEOI0OtlLhThY45RWr5f2szxVLvMHn9tlihOxy8O7VF/ACzHYJ6TgLM2bATWn/fO7zqCjATJxQgIEyJX3qc9E/R7aVCIWWQT89ev5ZBdhd+SIedIMbINfGGUV7nFtYTC5qi/SQkfBOmXI1rJrjsaKx Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 01 Apr 2026 17:20:40 +0200, Thorsten Blum wrote: > Use strnlen() to limit source string scanning to 'TASK_COMM_LEN - 1' > bytes. > > Applied to for-next/execve, thanks! [1/2] exec: use strnlen() in __set_task_comm https://git.kernel.org/kees/c/10cd6758e054 [2/2] sched: update task_struct->comm comment https://git.kernel.org/kees/c/9bf092c97b86 Take care, -- Kees Cook