From nobody Tue Feb 10 05:44:08 2026 Received: from smtp82.ord1d.emailsrvr.com (smtp82.ord1d.emailsrvr.com [184.106.54.82]) (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 AAD59322557 for ; Fri, 30 Jan 2026 17:11:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=184.106.54.82 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769793108; cv=none; b=o6Z22/XILez1AdzvYBmXgWuTVZSCRzI3hNsoTnpgc2QXOW6fckWqFvV0hwzPqFO84Eej69vrixNw63BL6DSk90z3tygfLBRBcW0rK2h7+jXnRFicSm9O0APBVA9Pws3pWJ8QJuy1bbol9o6knCWlZKl8Ad8NwOPtm+ACm1RJjcI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769793108; c=relaxed/simple; bh=KCQ+qUDuv4p6o1ap2mWPcrnMB1fgfuzLOzsWSIlvz6E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qvxgXQU1WyE8UtIXI35G7aDA5kZKACMeBMrPp0fpM1G1Fdj6Nxkq6QhXxC2xY4hO94NIUGSYgf2jiydFDXIaW89xDdJuvM24a94ObAjtS33cP9czTACnDosRPre4rIcKzry6Tklr4EUZuvJhOyyUgbH+kluR2BL8Bx2jQgtVhPY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mev.co.uk; spf=pass smtp.mailfrom=mev.co.uk; dkim=pass (1024-bit key) header.d=mev.co.uk header.i=@mev.co.uk header.b=DRP21eNE; arc=none smtp.client-ip=184.106.54.82 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mev.co.uk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mev.co.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mev.co.uk header.i=@mev.co.uk header.b="DRP21eNE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mev.co.uk; s=20221208-6x11dpa4; t=1769792676; bh=KCQ+qUDuv4p6o1ap2mWPcrnMB1fgfuzLOzsWSIlvz6E=; h=From:To:Subject:Date:From; b=DRP21eNEgqH1pYb4oOPP2No+Vmqv/LnhX49FF5rz1PoGz5hgzwucRfKqahoaDn6KB /Q4dTZzDneupbkJyOfiXDphrvv2W/VZbr5XZTOXaBrPMMHuMkSoUGTwRkAmPJ9xnOE BfjCjH12/RBY3RO7c1dfEB6V6JFtmUC39LWDQgSc= X-Auth-ID: abbotti@mev.co.uk Received: by smtp19.relay.ord1d.emailsrvr.com (Authenticated sender: abbotti-AT-mev.co.uk) with ESMTPSA id 5F1B3602D6; Fri, 30 Jan 2026 12:04:35 -0500 (EST) From: Ian Abbott To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , Ian Abbott , H Hartley Sweeten Subject: [PATCH 05/46] comedi: aio_iiro_16: Add sanity checks for I/O base address Date: Fri, 30 Jan 2026 16:47:30 +0000 Message-ID: <20260130170416.49994-6-abbotti@mev.co.uk> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260130170416.49994-1-abbotti@mev.co.uk> References: <20260130170416.49994-1-abbotti@mev.co.uk> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Classification-ID: 429d5722-7f90-4557-8586-08913fa85e9e-6-1 Content-Type: text/plain; charset="utf-8" The "aio_iiro_16" driver uses an admin-supplied configuration option (`it->options[0]`) to configure the I/O port base address of a supported board (IIRO-16). It currently allows any base address to be configured but the hardware only supports base addresses (set by on-board jumpers) in the range 0x100 to 0x3F8 on 8-byte boundaries. Add a sanity check to ensure the device is not configured at an unsupported base address. Signed-off-by: Ian Abbott --- drivers/comedi/drivers/aio_iiro_16.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/comedi/drivers/aio_iiro_16.c b/drivers/comedi/drivers/= aio_iiro_16.c index 739cc4db52ac..00d0bb0f6256 100644 --- a/drivers/comedi/drivers/aio_iiro_16.c +++ b/drivers/comedi/drivers/aio_iiro_16.c @@ -167,7 +167,8 @@ static int aio_iiro_16_attach(struct comedi_device *dev, struct comedi_subdevice *s; int ret; =20 - ret =3D comedi_request_region(dev, it->options[0], 0x8); + ret =3D comedi_check_request_region(dev, it->options[0], 0x8, + 0x100, 0x3ff, 0x8); if (ret) return ret; =20 --=20 2.51.0