| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20260130170416.49994-45-abbotti@mev.co.uk> Date: Fri, 30 Jan 2026 16:48:09 +0000 From: Ian Abbott <abbotti@....co.uk> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Ian Abbott <abbotti@....co.uk>, H Hartley Sweeten <hsweeten@...ionengravers.com> Subject: [PATCH 44/46] comedi: rti800: Add sanity checks for I/O base address The "rti800" driver uses an admin-supplied configuration option (`it->options[0]`) to configure the I/O port base address of a RTI-800 or RTI-815 board. It currently allows any base address to be configured but the hardware only supports base addresses (configured by on-board DIP switches) in the range 0 to 0x3F0 on 16-byte boundaries. Add a sanity check to ensure the device is not configured at an unsupported base address. Signed-off-by: Ian Abbott <abbotti@....co.uk> --- drivers/comedi/drivers/rti800.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/comedi/drivers/rti800.c b/drivers/comedi/drivers/rti800.c index 1b02e47bdb4c..fa3965cf92f2 100644 --- a/drivers/comedi/drivers/rti800.c +++ b/drivers/comedi/drivers/rti800.c @@ -257,7 +257,8 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it) struct comedi_subdevice *s; int ret; - ret = comedi_request_region(dev, it->options[0], 0x10); + ret = comedi_check_request_region(dev, it->options[0], 0x10, + 0, 0x3ff, 16); if (ret) return ret; -- 2.51.0
Powered by blists - more mailing lists