From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 1D53130EF89; Tue, 2 Jun 2026 10:04:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780394659; cv=none; b=QaHTtpY/2LZzFuaF2ASQRnVdvX1qGwwRPpY0e8QQVxzc5Em7I1Gcp8+CxGeePnLMd5PWtHzGnfdzvLeNG8xp5S28BL6TjXVDnnAY37b3Nw2qrRQpv0F+48NF6QRhkCy35VR/R1r9mMfnjvXoezg157TS0Dl+THydYIX5SCIFaEs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780394659; c=relaxed/simple; bh=YdPwtikXRDaKpAOURi931IMQBXVu9ZmCKgykjG/ASVA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=M7IUYsZQtEheYzJONf+o/6gNcKkeQKi0Bd1fQKykL/ZA3hhl2sMjvUqoo9iiRc/Ajzn+z7fyKQl5LA0hrNQXM4mnCFVFpdvL8v7Kr9zUgoGPrA36xJB9KLy/fIy7D8nyIa5WWhZ0LIuK7CDM5fnKd5oDMlvqwlvlXh86YgkY3fA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=RhRZ+sFo; arc=none smtp.client-ip=192.198.163.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="RhRZ+sFo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1780394658; x=1811930658; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=YdPwtikXRDaKpAOURi931IMQBXVu9ZmCKgykjG/ASVA=; b=RhRZ+sFogQAhBasN5PvZxVe+Lirc0L3e4+Q3LykQx4JdhtdgCsUdGxIb /Bby7jQwNQvNlENkKHbFHAOB98bN39u8p7MbhRy5cgp3l1fKbZEl1mv/6 h9PrpveFQBD9bwVNau4RVA7U1HP/tp7LwIGy9MFFN55V215E5EXTJjJ8G qgULHzvR3tHNoXrjpUFW/OvwXJlMnya+3Sa5AqpeoXf2Jx3Y/OHYqitZY 3qHBPUp9/uIQ0kNDK66nuT/IuL6uP4y1fDxXb1CjFTIp5rEuITaV2jTmb kYDMaXSNiZa53E+AZh52LqGy+6UwAgy2U3fg8o4bkiatRzh7blND2RrPe w==; X-CSE-ConnectionGUID: Pv2dGPB9RLqskjoz6Oo+Vg== X-CSE-MsgGUID: F5FNRG7fSG2XhvGtRrSL7w== X-IronPort-AV: E=McAfee;i="6800,10657,11804"; a="91860368" X-IronPort-AV: E=Sophos;i="6.24,183,1774335600"; d="scan'208";a="91860368" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jun 2026 03:04:17 -0700 X-CSE-ConnectionGUID: w/1ggkKISzKwlP6E1Ef5Wg== X-CSE-MsgGUID: dTroBSPuTpK9ONqmP5wXuw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,183,1774335600"; d="scan'208";a="267510766" Received: from mkosciow-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.245.229]) by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jun 2026 03:04:15 -0700 Date: Tue, 2 Jun 2026 13:04:13 +0300 From: Andy Shevchenko To: Mika Westerberg Cc: Marco Scardovi , Mika Westerberg , Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, "Marco Scardovi (scardracs)" Subject: Re: [PATCH v4 2/4] gpiolib: acpi: fix resource leak in OpRegion Message-ID: References: <20260531120816.17255-1-scardracs@disroot.org> <20260531120816.17255-3-scardracs@disroot.org> <20260601121815.GS3102@black.igk.intel.com> <20260602095346.GA2990@black.igk.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20260602095346.GA2990@black.igk.intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Tue, Jun 02, 2026 at 11:53:46AM +0200, Mika Westerberg wrote: > On Tue, Jun 02, 2026 at 10:57:50AM +0300, Andy Shevchenko wrote: > > On Mon, Jun 01, 2026 at 02:18:15PM +0200, Mika Westerberg wrote: > > > On Sun, May 31, 2026 at 02:03:09PM +0200, Marco Scardovi wrote: ... > > > This is really complex solution to a problem I'm not sure that even exists. > > > > The problem that potentially may have an attack vector is the malicious ACPI tables > > (via SSDT overlay, for example). So some of the validations (like pin index in the > > pin list) would be somewhat useful. > > Yes but with SSDT overlay you can do much worse things than passing an > invalid pin index. Still my point is valid :-) -- With Best Regards, Andy Shevchenko