Andrew Pimlott <andrewpimlott.net> wrote:
> > > If he is smart, he will check whether the file is open (eg with fuser)
> > Not really. The file does not have to be open to be present in the system.
> > It is prefectly possible to leave a dangling root-owned file several
> > times,
> Correct, but: the admin should still verify that it is not open
> before deleting it (in his cron job).

As long as there is no atomic "check-if-file-is-open-and-if-not-delete-it"
this just makes exploitation harder by introducing another race condition.

CU, Andy

-- 
= Andreas Beck                    |  Email :  <beckabedatec.de>             =

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]