Re: suid GUI apps

From: Chris Evans (chris@ferret.lmh.ox.ac.uk)
Date: Fri May 19 2000 - 10:14:41 EDT

  • Next message: Miquel van Smoorenburg: "NFS client stuck in nfs_free_dentries (2.2.15)"

    On Fri, 19 May 2000, Alan Cox wrote:

    > > >the X11 interface unpriviledged - after all it is just display not real time
    > > >tied. When you get to video playback you get X and stuff involved and it
    > > >does get harder.
    > >
    > > What do I start reading to catch up on capabilities ?
    >
    > include/linux/capability.h
    >
    > The root powers are divided up into about 25 subsets, so an suid program
    > can start by dropping all but those it needs. They dont always line up ideally
    > with needs but more work can be done there in 2.5

    25 subsets which are distinctly non-orthogonal :-( Without a lot of work,
    quite a few can be used to gain some or all of the others, e.g.
    CAP_MODULE, CAP_SYS_RAWIO, CAP_DAC_OVERRIDE, CAP_SETUID

    Chris

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.rutgers.edu
    Please read the FAQ at http://www.tux.org/lkml/



    This archive was generated by hypermail 2b29 : Fri May 19 2000 - 10:17:00 EDT