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Message-ID: <50328196.9010203@redhat.com>
Date: Mon, 20 Aug 2012 12:27:34 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE Request -- kernel: mm: use-after-free in madvise_remove()
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 08/20/2012 12:07 PM, Petr Matousek wrote:
> A use-after-free flaw has been found in madvise_remove() function
> in the Linux kernel. madvise_remove() can race with munmap (causing
> a use-after-free of the vma) or with close (causing a
> use-after-free of the struct file). An unprivileged local user can
> use this flaw to crash the system.
>
> Upstream fix:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb
>
> Introduced in:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=90ed52ebe48181d3c5427b3bd1d24f659e7575ad
>
> References: https://bugzilla.redhat.com/show_bug.cgi?id=849734
>
> Thanks,
Please use CVE-2012-3511 for this issue.
- --
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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