From: "Vadim Lebedev" <vlebedev@aplio.fr>
To: "Kurt Roeckx" <Q@ping.be>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: Potenitial security hole in the kernel
Date: Tue, 29 May 2001 00:30:03 +0200 [thread overview]
Message-ID: <009601c0e7c5$bd7021f0$0101a8c0@LAP> (raw)
In-Reply-To: <003601c0e7bf$41953080$0101a8c0@LAP> <20010529002900.A3190@ping.be>
Kurt,
Maybe i'm missing something but it seems that during execution of the signal
handler, user mode stack contains kernel mode context...
Hence the security hole
Vadim
----- Original Message -----
From: "Kurt Roeckx" <Q@ping.be>
To: "Vadim Lebedev" <vlebedev@aplio.fr>
Cc: <linux-kernel@vger.kernel.org>
Sent: Tuesday, May 29, 2001 12:29 AM
Subject: Re: Potenitial security hole in the kernel
> On Mon, May 28, 2001 at 11:43:38PM +0200, Vadim Lebedev wrote:
> > Hi folks,
> >
> > Please correct me if i'm wrong but it seems to me that i've stumbled on
> > really BIG security hole in the signal handling code.
> > The problem IMO is that the signal handling code stores a processor
context
> > on the user-mode stack frame which is active while
>
> And how is that different from any other function call?
>
>
> Kurt
>
>
next prev parent reply other threads:[~2001-05-28 22:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-28 21:43 Potenitial security hole in the kernel Vadim Lebedev
2001-05-28 22:21 ` Philip Blundell
2001-05-28 22:26 ` Vadim Lebedev
2001-05-28 22:29 ` Kurt Roeckx
2001-05-28 22:30 ` Vadim Lebedev [this message]
2001-05-28 23:15 ` Kurt Roeckx
2001-05-28 22:44 ` Brett Frankenberger
2001-05-28 23:12 ` Russell King
2001-05-28 23:30 ` Kurt Roeckx
2001-05-28 23:46 ` Kurt Roeckx
2001-05-29 0:32 ` Jamie Lokier
2001-05-29 7:35 ` Chris Wedgwood
2001-05-29 10:14 ` Jamie Lokier
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