Gentoo Archives: gentoo-hardened

From: Mike Rellion <m.rellion@×××××.com>
To: gentoo-hardened@l.g.o
Subject: Re: [gentoo-hardened] latest kernel exploit patch for vmsplice coming?
Date: Sun, 10 Feb 2008 22:36:50
Message-Id: dd5564a50802101436q7ba6999bs99e06b813983f69d@mail.gmail.com
In Reply to: Re: [gentoo-hardened] latest kernel exploit patch for vmsplice coming? by Alex Howells
1 Sorry I wasn't saying we needed a special patch but as 2.6.24 is masked
2 currently I was thinking if hardened could add this as one of the hardened
3 patches applied to the kernel when compiled.
4
5 ~Mitch
6
7 On Feb 10, 2008 5:32 PM, Alex Howells <astinus@g.o> wrote:
8
9 > On 10/02/2008, Mike Rellion <m.rellion@×××××.com> wrote:
10 > > With this latest root exploit getting a lot of attention will we get a
11 > > hardened patch for this soon?
12 > >
13 > > There is a runtime fix at:
14 > > http://www.ping.uio.no/~mortehu/disable-vmsplice-if-exploitable.c<http://www.ping.uio.no/%7Emortehu/disable-vmsplice-if-exploitable.c>
15 > > but grsec sadly prevents the runtime fix from running for those of us
16 > > running it as it denies kmem writing. We could recompile without grsec
17 > to
18 > > apply this runtime patch but that is certainly a hack.
19 >
20 > I wasn't sure we needed a special patch?
21 >
22 > Every single box I've tried this exploit on ranging from
23 > hardened-sources-2.6.17 through to hardened-sources-2.6.23, its been
24 > nailed. Could just be my kernel configuration?
25 > --
26 > gentoo-hardened@l.g.o mailing list
27 >
28 >