Re: [PATCH] ioctl_console: Document new CAP_SYS_ADMIN restrictions (since Linux 6.7)

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Hello!

On Sat, Dec 02, 2023 at 12:14:06AM +0100, Greg Kroah-Hartman wrote:
> On Fri, Dec 01, 2023 at 01:56:41PM +0100, Alejandro Colomar wrote:
> > On Fri, Dec 01, 2023 at 01:26:45PM +0100, Günther Noack wrote:
> > > Since Linux commit 8d1b43f6a6df7bce ("tty: Restrict access to TIOCLINUX'
> > > copy-and-paste subcommands"), the TIOCL_SETSEL, TIOCL_PASTESEL and
> > > TIOCL_SELLOADLUT subcommands require CAP_SYS_ADMIN.
> > > 
> > > Cc: Hanno Böck <hanno@xxxxxxxxx>
> > > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > > Signed-off-by: Günther Noack <gnoack@xxxxxxxxxx>
> > > ---
> > >  man2/ioctl_console.2 | 12 ++++++++++++
> > >  1 file changed, 12 insertions(+)
> > > 
> > > diff --git a/man2/ioctl_console.2 b/man2/ioctl_console.2
> > > index 684b4d013..abc50b786 100644
> > > --- a/man2/ioctl_console.2
> > > +++ b/man2/ioctl_console.2
> > > @@ -715,12 +715,20 @@ is 0 for character-by-character selection,
> > >  or 2 for line-by-line selection.
> > >  The indicated screen characters are highlighted and saved
> > >  in a kernel buffer.
> > > +.IP
> > > +Since Linux 6.7, using this subcode requires the
> > 
> > Are these requirements expected to be backported to stable kernels?
> 
> I don't think so, do you think they should be?

Agreed, I think they don't need immediate backports either.

—Günther





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