[PATCH] afs: proc cells and rootcell are writeable
Ingo Molnar
mingo at kernel.org
Sun Jan 26 15:22:57 EST 2014
* Ingo Molnar <mingo at kernel.org> wrote:
> Perhaps we could also generate the most common variants as:
>
> #define PERM__rw_r__r__ 0644
> #define PERM__r________ 0400
> #define PERM__r__r__r__ 0444
> #define PERM__r_xr_xr_x 0555
>
> etc.
>
> or something similar, more or less matching the output of 'ls -l'?
>
> That would also make security bugs in this area apparent at first
> sight. The number of people who can recognize during review that
> PERM_rw__w__w is probably unwise is probably two orders of magnitude
> than those who can interpret octal 0622 at a glance.
^--higher
Thanks,
Ingo
More information about the linux-afs
mailing list