Re: [RFC PATCH 6/6] security/fbfam: Mitigate a fork brute force attack
From: Kees Cook
Date: Fri Sep 18 2020 - 17:35:16 EST
On Fri, Sep 18, 2020 at 06:02:16PM +0200, John Wood wrote:
> On Thu, Sep 10, 2020 at 04:56:19PM -0700, Kees Cook wrote:
> > On Thu, Sep 10, 2020 at 01:21:07PM -0700, Kees Cook wrote:
> > > + pr_warn("fbfam: Offending process with PID %d killed\n",
> > > + p->pid);
> > I'd make this ratelimited (along with Jann's suggestions).
> Sorry, but I don't understand what you mean with "make this ratelimited".
> A clarification would be greatly appreciated.
Ah! Yes, sorry for not being more clear. There are ratelimit helpers for
the pr_*() family of functions, e.g.:
pr_warn_ratelimited("brute: Offending process with PID...