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** Branch linked: lp:ubuntu/precise-security/linux-lts-trusty

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https://bugs.launchpad.net/bugs/1337339

Title:
  x86_64,ptrace: Enforce RIP <= TASK_SIZE_MAX (CVE-2014-4699)

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

Bug description:
  Don't allow ptrace to set RIP to a value that couldn't happen by
  ordinary control flow. There are CPU bugs^Wfeatures that can have
  interesting effects if RIP is non-canonical. I didn't make the
  corresponding x86_32 change, since x86_32 has no concept of canonical
  addresses. putreg32 doesn't need this fix: value is only 32 bits, so
  it can't be non-canonical.

  Break-Fix: 427abfa28afedffadfca9dd8b067eb6d36bac53f
  b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43a

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