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Subject:	Security ERRATA Moderate: kernel on SL6.x i386/x86_64
From:	Constance Sieh <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Fri, 18 May 2012 16:48:10 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (53 lines)

Synopsis:    Moderate: kernel security and bug fixes
Issue Date:  2012-05-15
CVE Numbers: CVE-2011-4086
             CVE-2012-1601

This update fixes the following security issues:

* A flaw was found in the way the Linux kernel's journal_unmap_buffer()
function handled buffer head states. On systems that have an ext4 file
system with a journal mounted, a local, unprivileged user could use this
flaw to cause a denial of service. (CVE-2011-4086, Moderate)

* A flaw was found in the way the KVM_CREATE_IRQCHIP ioctl was handled.
Calling this ioctl when at least one virtual CPU (VCPU) already existed
could lead to a NULL pointer dereference later when the VCPU is scheduled
to run. A local, unprivileged user on a KVM host could use this flaw to
crash the host. (CVE-2012-1601, Moderate)

The system must be rebooted for this update to take effect.

SL6:
  i386
     kernel-2.6.32-220.17.1.el6.i686.rpm
     kernel-debug-2.6.32-220.17.1.el6.i686.rpm
     kernel-debug-debuginfo-2.6.32-220.17.1.el6.i686.rpm
     kernel-debug-devel-2.6.32-220.17.1.el6.i686.rpm
     kernel-debuginfo-2.6.32-220.17.1.el6.i686.rpm
     kernel-debuginfo-common-i686-2.6.32-220.17.1.el6.i686.rpm
     kernel-devel-2.6.32-220.17.1.el6.i686.rpm
     kernel-headers-2.6.32-220.17.1.el6.i686.rpm
     perf-2.6.32-220.17.1.el6.i686.rpm
     perf-debuginfo-2.6.32-220.17.1.el6.i686.rpm
     python-perf-2.6.32-220.17.1.el6.i686.rpm
     python-perf-debuginfo-2.6.32-220.17.1.el6.i686.rpm
  noarch
     kernel-doc-2.6.32-220.17.1.el6.noarch.rpm
     kernel-firmware-2.6.32-220.17.1.el6.noarch.rpm
  x86_64
     kernel-2.6.32-220.17.1.el6.x86_64.rpm
     kernel-debug-2.6.32-220.17.1.el6.x86_64.rpm
     kernel-debug-debuginfo-2.6.32-220.17.1.el6.x86_64.rpm
     kernel-debug-devel-2.6.32-220.17.1.el6.x86_64.rpm
     kernel-debuginfo-2.6.32-220.17.1.el6.x86_64.rpm
     kernel-debuginfo-common-x86_64-2.6.32-220.17.1.el6.x86_64.rpm
     kernel-devel-2.6.32-220.17.1.el6.x86_64.rpm
     kernel-headers-2.6.32-220.17.1.el6.x86_64.rpm
     perf-2.6.32-220.17.1.el6.x86_64.rpm
     perf-debuginfo-2.6.32-220.17.1.el6.x86_64.rpm
     python-perf-2.6.32-220.17.1.el6.x86_64.rpm
     python-perf-debuginfo-2.6.32-220.17.1.el6.x86_64.rpm

- Scientific Linux Development Team

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