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Re: [RFC PATCH 1/2] mac80211: 11d Handling - Country Information Element

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From: "Tomas Winkler" <tomasw@xxxxxxxxx>
Date: Thu, 19 Jun 2008 23:29:55 +0300

> On Thu, Jun 19, 2008 at 11:18 PM, Johannes Berg
> <johannes@xxxxxxxxxxxxxxxx> wrote:
> >
> >> >> +     if (country_ie_len < 6) {
> >> >> +             printk(KERN_ERR "%s: country information element shorter (%d)"
> >> >> +                     " than expected.\n", __func__, country_ie_len);
> >> >
> >> > Remotely exploitable security bug.
> >
> >> Please explain,
> >
> > Sending broken frames will fill the disk.
> 
> I see thanks (yeah, distors doesn't make separate log partitions as default)

How distros do their partitioning is neither here not there.  And even
if they make a seperate log partition, that means it's still exploitable
in that you will no longer get the other non-spam log messages that might
be important to know about.

Any kernel log message triggerable remotely without any kind of rate
limiting is a bug.
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