Re: 2.4+ptrace exploit fix breaks root's ability to strace

Alan Cox
2003-03-22T13:35:47Z

On Sat, 2003-03-22 at 10:31, Russell King wrote:
> Hi,
>
> Are the authors of the ptrace patch aware that, in addition to closing the
> hole, the "fix" also prevents a ptrace-capable task (eg, strace started by
> root) from ptracing user threads?
>
> For example, you can't strace vsftpd processes started from xinetd.
>
> Is this intended behaviour?

Its an unintended side effect, nobody has sent a patch to fix it yet.