Messages in this thread |  | | | From | "Vadim Lebedev" <> | | Subject | Re: Potenitial security hole in the kernel | | Date | Tue, 29 May 2001 00:30:03 +0200 |
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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 > >
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