Re: [PATCH v2 0/2] capabilities: Ambient capabilities

On Thu, May 14, 2015 at 11:39 PM, Andy Lutomirski [off-list ref] wrote:

This adds ambient capabilities.  See the individual patch changelogs
for details.

Preliminary userspace code is here:

https://git.kernel.org/cgit/linux/kernel/git/luto/util-linux-playground.git/commit/?h=cap_ambient&id=7f5afbd175d2

I'll follow up with a rough draft of a man-pages patch.

Just as a note: I'm going to hold off on v3 until Kees and/or Serge
can take a look, since so far the only changes I want to make to the
kernel part are some comment cleanups and a possible rearrangement of
the pE' stuff that will provably have no effect.

--Andy

Changes from v1:
 - Lots of cleanups to the ambient cap code.
 - The securebit is new.

Andy Lutomirski (2):
  capabilities: Ambient capabilities
  capabilities: Add a securebit to disable PR_CAP_AMBIENT_RAISE

 fs/proc/array.c                 |  5 ++-
 include/linux/cred.h            |  8 ++++
 include/uapi/linux/prctl.h      |  6 +++
 include/uapi/linux/securebits.h | 11 +++++-
 kernel/user_namespace.c         |  1 +
 security/commoncap.c            | 88 ++++++++++++++++++++++++++++++++++++-----
 security/keys/process_keys.c    |  1 +
 7 files changed, 108 insertions(+), 12 deletions(-)

--
2.1.0

-- 
Andy Lutomirski
AMA Capital Management, LLC