Re: Stricter module param and sysfs permission checks

From: Alexey Dobriyan
Date: Thu Mar 20 2014 - 05:16:02 EST


On Thu, Mar 20, 2014 at 7:27 AM, Dave Jones <davej@xxxxxxxxxx> wrote:
> On Thu, Mar 20, 2014 at 01:43:44PM +1030, Rusty Russell wrote:
>
> > drivers/mtd/devices/docg3.c:
> > __ATTR(f##id##_dps0_protection_key, S_IWUGO, NULL, dps0_insert_key), \
> > __ATTR(f##id##_dps1_protection_key, S_IWUGO, NULL, dps1_insert_key), \
> >
> > drivers/scsi/pm8001/pm8001_ctl.c:
> > static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUGO,
> > pm8001_show_update_fw, pm8001_store_update_fw);
>
> Why on earth are these world writable ?

Yup.

I like new and improved checks.
Rusty, add my "& 2" check everywhere!
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