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[Bug 1326367] Re: exploitable futex vulnerability

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: John Johansen <john.johansen@xxxxxxxxxxxxx>
Date: Thu, 05 Jun 2014 17:13:16 -0000
Reply-to: Bug 1326367 <1326367@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Also affects: linux (Ubuntu Lucid)
   Importance: Undecided
       Status: New

** Also affects: linux-mvl-dove (Ubuntu Lucid)
   Importance: Undecided
       Status: New

** Also affects: linux-ec2 (Ubuntu Lucid)
   Importance: Undecided
       Status: New

** Also affects: linux-armadaxp (Ubuntu Lucid)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-quantal (Ubuntu Lucid)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-saucy (Ubuntu Lucid)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux-mvl-dove (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux-ec2 (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux-armadaxp (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-quantal (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-saucy (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Saucy)
   Importance: Undecided
       Status: New

** Also affects: linux-mvl-dove (Ubuntu Saucy)
   Importance: Undecided
       Status: New

** Also affects: linux-ec2 (Ubuntu Saucy)
   Importance: Undecided
       Status: New

** Also affects: linux-armadaxp (Ubuntu Saucy)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-quantal (Ubuntu Saucy)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-saucy (Ubuntu Saucy)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Utopic)
   Importance: Undecided
       Status: Confirmed

** Also affects: linux-mvl-dove (Ubuntu Utopic)
   Importance: Undecided
       Status: New

** Also affects: linux-ec2 (Ubuntu Utopic)
   Importance: Undecided
       Status: New

** Also affects: linux-armadaxp (Ubuntu Utopic)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-quantal (Ubuntu Utopic)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-saucy (Ubuntu Utopic)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux-mvl-dove (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux-ec2 (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux-armadaxp (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-quantal (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux-lts-saucy (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Changed in: linux-armadaxp (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-armadaxp (Ubuntu Saucy)
       Status: New => Invalid

** Changed in: linux-armadaxp (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-armadaxp (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-armadaxp (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-armadaxp (Ubuntu Lucid)
       Status: New => Invalid

** Changed in: linux-armadaxp (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-armadaxp (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-armadaxp (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux-ec2 (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-ec2 (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-ec2 (Ubuntu Saucy)
       Status: New => Invalid

** Changed in: linux-ec2 (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-ec2 (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-ec2 (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-ec2 (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-ec2 (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-ec2 (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux-lts-quantal (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-lts-quantal (Ubuntu Saucy)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-lts-quantal (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-lts-quantal (Ubuntu Lucid)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-lts-quantal (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux-mvl-dove (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-mvl-dove (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-mvl-dove (Ubuntu Saucy)
       Status: New => Invalid

** Changed in: linux-mvl-dove (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-mvl-dove (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-mvl-dove (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-mvl-dove (Ubuntu Lucid)
       Status: New => Invalid

** Changed in: linux-mvl-dove (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-mvl-dove (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-mvl-dove (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux-lts-saucy (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-lts-saucy (Ubuntu Saucy)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-lts-saucy (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-lts-saucy (Ubuntu Lucid)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-lts-saucy (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux-ti-omap4 (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-ti-omap4 (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-ti-omap4 (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-ti-omap4 (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-ti-omap4 (Ubuntu Lucid)
       Status: New => Invalid

** Changed in: linux-ti-omap4 (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-ti-omap4 (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-ti-omap4 (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux-fsl-imx51 (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-fsl-imx51 (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-fsl-imx51 (Ubuntu Saucy)
       Status: New => Invalid

** Changed in: linux-fsl-imx51 (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-fsl-imx51 (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-fsl-imx51 (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-fsl-imx51 (Ubuntu Lucid)
       Status: New => Invalid

** Changed in: linux-fsl-imx51 (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-fsl-imx51 (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-fsl-imx51 (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: linux-lts-raring (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: linux-lts-raring (Ubuntu Saucy)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: linux-lts-raring (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-lts-raring (Ubuntu Lucid)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Lucid)
   Importance: Undecided => High

** Changed in: linux-lts-raring (Ubuntu Utopic)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Utopic)
   Importance: Undecided => High

** Description changed:

  If uaddr == uaddr2, then we have broken the rule of only requeueing from
  a non-pi futex to a pi futex with this call. If we attempt this, then
  dangling pointers may be left for rt_waiter resulting in an exploitable
  condition.
+ 
+ Break-Fix: 52400ba946759af28442dee6265c5c0180ac7122 -

-- 
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Packages, which is subscribed to linux-armadaxp in Ubuntu.
https://bugs.launchpad.net/bugs/1326367

Title:
  exploitable futex vulnerability

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux-armadaxp” 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-quantal” package in Ubuntu:
  Invalid
Status in “linux-lts-raring” package in Ubuntu:
  Invalid
Status in “linux-lts-saucy” package in Ubuntu:
  Invalid
Status in “linux-mvl-dove” package in Ubuntu:
  Invalid
Status in “linux-ti-omap4” package in Ubuntu:
  Invalid
Status in “linux” source package in Lucid:
  New
Status in “linux-armadaxp” source package in Lucid:
  Invalid
Status in “linux-ec2” source package in Lucid:
  New
Status in “linux-fsl-imx51” source package in Lucid:
  Invalid
Status in “linux-lts-quantal” source package in Lucid:
  Invalid
Status in “linux-lts-raring” source package in Lucid:
  Invalid
Status in “linux-lts-saucy” source package in Lucid:
  Invalid
Status in “linux-mvl-dove” source package in Lucid:
  Invalid
Status in “linux-ti-omap4” source package in Lucid:
  Invalid
Status in “linux” source package in Precise:
  New
Status in “linux-armadaxp” source package in Precise:
  New
Status in “linux-ec2” source package in Precise:
  Invalid
Status in “linux-fsl-imx51” source package in Precise:
  Invalid
Status in “linux-lts-quantal” source package in Precise:
  New
Status in “linux-lts-raring” source package in Precise:
  New
Status in “linux-lts-saucy” source package in Precise:
  New
Status in “linux-mvl-dove” source package in Precise:
  Invalid
Status in “linux-ti-omap4” source package in Precise:
  New
Status in “linux” source package in Saucy:
  New
Status in “linux-armadaxp” source package in Saucy:
  Invalid
Status in “linux-ec2” source package in Saucy:
  Invalid
Status in “linux-fsl-imx51” source package in Saucy:
  Invalid
Status in “linux-lts-quantal” source package in Saucy:
  Invalid
Status in “linux-lts-raring” source package in Saucy:
  Invalid
Status in “linux-lts-saucy” source package in Saucy:
  Invalid
Status in “linux-mvl-dove” source package in Saucy:
  Invalid
Status in “linux-ti-omap4” source package in Saucy:
  New
Status in “linux” source package in Trusty:
  New
Status in “linux-armadaxp” source package in Trusty:
  Invalid
Status in “linux-ec2” source package in Trusty:
  Invalid
Status in “linux-fsl-imx51” source package in Trusty:
  Invalid
Status in “linux-lts-quantal” source package in Trusty:
  Invalid
Status in “linux-lts-raring” source package in Trusty:
  Invalid
Status in “linux-lts-saucy” source package in Trusty:
  Invalid
Status in “linux-mvl-dove” source package in Trusty:
  Invalid
Status in “linux-ti-omap4” source package in Trusty:
  Invalid
Status in “linux” source package in Utopic:
  Confirmed
Status in “linux-armadaxp” source package in Utopic:
  Invalid
Status in “linux-ec2” source package in Utopic:
  Invalid
Status in “linux-fsl-imx51” source package in Utopic:
  Invalid
Status in “linux-lts-quantal” source package in Utopic:
  Invalid
Status in “linux-lts-raring” source package in Utopic:
  Invalid
Status in “linux-lts-saucy” source package in Utopic:
  Invalid
Status in “linux-mvl-dove” source package in Utopic:
  Invalid
Status in “linux-ti-omap4” source package in Utopic:
  Invalid

Bug description:
  If uaddr == uaddr2, then we have broken the rule of only requeueing
  from a non-pi futex to a pi futex with this call. If we attempt this,
  then dangling pointers may be left for rt_waiter resulting in an
  exploitable condition.

  Break-Fix: 52400ba946759af28442dee6265c5c0180ac7122 -

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