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Re: 2.4.24 fixes local root exploit in 2.4.23



On Mon, Jan 05, 2004 at 07:27:17PM +0100, Martin Helas <mhelas@helas.net> wrote:
> > Don't forget that 2.2 and 2.6 kernels are also affected.  2.6 patches
> > are due shortly.
> There is already a patch for 2.6 [1] published by Linus, but there is no
> official patch yet.
> [1] http://marc.theaimsgroup.com/?l=linux-kernel&m=107332139413041&w=2
There's an other fix in 2.4.24:
<trini:mvista.com>:
  o /dev/rtc can leak parts of kernel memory to unpriviledged users

As I haven't seen Linus' patch then, I forward ported the 2.4.24 patch:
http://www.lsc.hu/2.6.0-security.patch
This contains the RTC fixes, but the mremap check is not so strict -
it's the original fix from 2.4.24.

Cheers,
GCS

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