kernel-packages team mailing list archive

[dann frazier <dann.frazier@xxxxxxxxxxxxx>]

Public bug reported:

[Impact]
The arm-smmu driver doesn't allow 2 different devices (SMMU 0/1) to share a namespace. So if 2 devices are connected to same SMMU, it may lead to memory corruption.

[Test Case]
[Regression Risk]

** Affects: linux (Ubuntu)
     Importance: High
     Assignee: dann frazier (dannf)
         Status: Confirmed

** Affects: linux (Ubuntu Xenial)
     Importance: High
     Assignee: dann frazier (dannf)
         Status: In Progress

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

** Changed in: linux (Ubuntu Xenial)
       Status: New => Incomplete

** Changed in: linux (Ubuntu Xenial)
       Status: Incomplete => In Progress

** Changed in: linux (Ubuntu)
       Status: In Progress => Confirmed

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

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => dann frazier (dannf)

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https://bugs.launchpad.net/bugs/1590168

Title:
  workaround cavium thunderx silicon erratum 27704

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  In Progress

Bug description:
  [Impact]
  The arm-smmu driver doesn't allow 2 different devices (SMMU 0/1) to share a namespace. So if 2 devices are connected to same SMMU, it may lead to memory corruption.

  [Test Case]
  [Regression Risk]

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