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[Bug 894371] Re: CVE-2011-4112

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Mathew Hodson <mathew.hodson@xxxxxxxxx>
Date: Mon, 11 May 2015 08:09:36 -0000
Reply-to: Bug 894371 <894371@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Description changed:

- Kernel panic when running pktgen on a bridge over vlan.
+ The net subsystem in the Linux kernel before 3.1 does not properly restrict
+ use of the IFF_TX_SKB_SHARING flag, which allows local users to cause a
+ denial of service (panic) by leveraging the CAP_NET_ADMIN capability to
+ access /proc/net/pktgen/pgctrl, and then using the pktgen package in
+ conjunction with a bridge device for a VLAN interface.
+ 
+ Break-Fix: - d8873315065f1f527c7c380402cf59b1e1d0ae36
+ Break-Fix: - 550fd08c2cebad61c548def135f67aba284c6162

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https://bugs.launchpad.net/bugs/894371

Title:
  CVE-2011-4112

Status in linux package in Ubuntu:
  Invalid
Status in linux-ec2 package in Ubuntu:
  Invalid
Status in linux-fsl-imx51 package in Ubuntu:
  Invalid
Status in linux-lts-backport-maverick package in Ubuntu:
  Invalid
Status in linux-lts-backport-natty package in Ubuntu:
  Invalid
Status in linux-lts-backport-oneiric package in Ubuntu:
  Invalid
Status in linux-mvl-dove package in Ubuntu:
  Invalid
Status in linux-ti-omap4 package in Ubuntu:
  Fix Released
Status in linux source package in Lucid:
  New
Status in linux-ec2 source package in Lucid:
  New
Status in linux-fsl-imx51 source package in Lucid:
  New
Status in linux-lts-backport-maverick source package in Lucid:
  Won't Fix
Status in linux-lts-backport-natty source package in Lucid:
  Won't Fix
Status in linux-lts-backport-oneiric source package in Lucid:
  Won't Fix
Status in linux-mvl-dove source package in Lucid:
  New
Status in linux-ti-omap4 source package in Lucid:
  Invalid
Status in linux source package in Maverick:
  Won't Fix
Status in linux-ec2 source package in Maverick:
  Invalid
Status in linux-fsl-imx51 source package in Maverick:
  Invalid
Status in linux-lts-backport-maverick source package in Maverick:
  Invalid
Status in linux-lts-backport-natty source package in Maverick:
  Invalid
Status in linux-lts-backport-oneiric source package in Maverick:
  Invalid
Status in linux-mvl-dove source package in Maverick:
  Won't Fix
Status in linux-ti-omap4 source package in Maverick:
  Won't Fix
Status in linux source package in Natty:
  Won't Fix
Status in linux-ec2 source package in Natty:
  Invalid
Status in linux-fsl-imx51 source package in Natty:
  Invalid
Status in linux-lts-backport-maverick source package in Natty:
  Invalid
Status in linux-lts-backport-natty source package in Natty:
  Invalid
Status in linux-lts-backport-oneiric source package in Natty:
  Invalid
Status in linux-mvl-dove source package in Natty:
  Invalid
Status in linux-ti-omap4 source package in Natty:
  Won't Fix
Status in linux source package in Oneiric:
  Won't Fix
Status in linux-ec2 source package in Oneiric:
  Invalid
Status in linux-fsl-imx51 source package in Oneiric:
  Invalid
Status in linux-lts-backport-maverick source package in Oneiric:
  Invalid
Status in linux-lts-backport-natty source package in Oneiric:
  Invalid
Status in linux-lts-backport-oneiric source package in Oneiric:
  Invalid
Status in linux-mvl-dove source package in Oneiric:
  Invalid
Status in linux-ti-omap4 source package in Oneiric:
  Fix Released
Status in linux source package in Precise:
  Invalid
Status in linux-ec2 source package in Precise:
  Invalid
Status in linux-fsl-imx51 source package in Precise:
  Invalid
Status in linux-lts-backport-maverick source package in Precise:
  Invalid
Status in linux-lts-backport-natty source package in Precise:
  Invalid
Status in linux-lts-backport-oneiric source package in Precise:
  Invalid
Status in linux-mvl-dove source package in Precise:
  Invalid
Status in linux-ti-omap4 source package in Precise:
  Fix Released
Status in linux source package in Hardy:
  Won't Fix
Status in linux-ec2 source package in Hardy:
  Invalid
Status in linux-fsl-imx51 source package in Hardy:
  Invalid
Status in linux-lts-backport-maverick source package in Hardy:
  Invalid
Status in linux-lts-backport-natty source package in Hardy:
  Invalid
Status in linux-lts-backport-oneiric source package in Hardy:
  Invalid
Status in linux-mvl-dove source package in Hardy:
  Invalid
Status in linux-ti-omap4 source package in Hardy:
  Invalid

Bug description:
  The net subsystem in the Linux kernel before 3.1 does not properly restrict
  use of the IFF_TX_SKB_SHARING flag, which allows local users to cause a
  denial of service (panic) by leveraging the CAP_NET_ADMIN capability to
  access /proc/net/pktgen/pgctrl, and then using the pktgen package in
  conjunction with a bridge device for a VLAN interface.

  Break-Fix: - d8873315065f1f527c7c380402cf59b1e1d0ae36
  Break-Fix: - 550fd08c2cebad61c548def135f67aba284c6162

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