Re: Review of ptrace Yama ptrace_scope description

[Michael Kerrisk (man-pages)]

Hi Jann,
...

> > So I've made that section of text:
> >
> >        A  process  that  has the CAP_SYS_PTRACE capability can update the
> >        /proc/sys/kernel/yama/ptrace_scope file with one of the  following
> >        values:
> >
> >        0 ("classic ptrace permissions")
> >               No  additional  restrictions  on  operations  that  perform
> >               PTRACE_MODE_ATTACH checks (beyond those imposed by the comâ
> >               moncap and other LSMs).
> >
> >               The use of PTRACE_TRACEME is unchanged.
> >
> >        1 ("restricted ptrace") [default value]
> >               When    performing    an    operation   that   requires   a
> >               PTRACE_MODE_ATTACH check, the calling process  must  either
> >               have the CAP_SYS_PTRACE capability in the user namespace of
> >               the target process or it  have  a  predefined  relationship
> >               with  the target process.
>
> Nit: The grammar in this sentence seems wrong to me.
> s/or it have/or it must have/?

Yep, thanks for catching that. Fixed now.

Cheers,

Michael


--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/