Re: [RFC PATCH 1/6] set_user: Perform RLIMIT_NPROC capability check against new user credentials

From: Michal Koutný
Date: Tue Feb 15 2022 - 06:55:47 EST


On Thu, Feb 10, 2022 at 02:14:05AM +0100, Solar Designer <solar@xxxxxxxxxxxx> wrote:
> However, I think you need to drop the negations of the return value from
> security_capable().
> security_capable() returns 0 or -EPERM, while capable() returns a
> bool, in kernel/capability.c: ns_capable_common():

Oops. Yeah, I only blindly applied replacement with a predicate for
(new) cred and overlooked this inverse semantics. Thanks for pointing
that out to me!

Nevertheless, this will likely be incorporated via Eric's series
anyway.


Michal