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kernel 2.6.24.1 still vulnerable to the vmsplice local root exploit

[Posted February 11, 2008 by corbet]

From:		"Niki Denev" <ndenev-AT-gmail.com>
To:		linux-kernel-AT-vger.kernel.org
Subject:		kernel 2.6.24.1 still vulnerable to the vmsplice local root exploit
Date:		Sun, 10 Feb 2008 08:04:35 +0200
Message-ID:		<2e77fc10802092204t7764ff12s65304f70500e2090@mail.gmail.com>
Archive-link:		Article, Thread

Hi,

As the subject says the 2.6.24.1 is still vulnerable to the vmsplice
local root exploit.

[opa@test tmp]$ uname -a
Linux tester 2.6.24.1 #1 Sun Feb 10 00:06:49 EST 2008 i686 unknown
[opa@test tmp]$ ./vms

-----------------------------------
 Linux vmsplice Local Root Exploit
 By qaaz
-----------------------------------
[+] mmap: 0x0 .. 0x1000
[+] page: 0x0
[+] page: 0x20
[+] mmap: 0x4000 .. 0x5000
[+] page: 0x4000
[+] page: 0x4020
[+] mmap: 0x1000 .. 0x2000
[+] page: 0x1000
[+] mmap: 0xb7f56000 .. 0xb7f88000
[+] root
[root@test tmp]#
[root@test tmp]# id
uid=0(root) gid=0(root) groups=2033(opa)
[root@test tmp]# uname -a
Linux test 2.6.24.1 #1 Sun Feb 10 00:06:49 EST 2008 i686 unknown

Is there any known fix/patch for this?

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