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Subject: Re: 2.4+ptrace exploit fix breaks root's ability to strace
From: Arjan van de Ven <arjanv@redhat.com>
Reply-To: arjanv@redhat.com
To: "Lists (lst)" <linux@lapd.cj.edu.ro>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Russell King <rmk@arm.linux.org.uk>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Sun, 2003-03-23 at 11:31, Lists (lst) wrote:
> On Sat, 22 Mar 2003, Alan Cox wrote:
>=20
> > On Sat, 2003-03-22 at 10:31, Russell King wrote:
> > > Are the authors of the ptrace patch aware that, in addition to closin=
g the
> > > hole, the "fix" also prevents a ptrace-capable task (eg, strace start=
ed by
> > > root) from ptracing user threads?
> >=20
> > Its an unintended side effect, nobody has sent a patch to fix it yet.
>=20
> Hi,
>=20
> mlafon send a patch to the list:

uid =3D=3D 0 is the wrong test

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