Comment 3 for bug 1527374

This bug was fixed in the package linux - 4.2.0-22.27

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linux (4.2.0-22.27) wily; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1527391

  [ Jann Horn ]

  * ptrace: being capable wrt a process requires mapped uids/gids
    - LP: #1527374

linux (4.2.0-22.26) wily; urgency=low

  [ Upstream Kernel Changes ]

  * xen: Add RING_COPY_REQUEST()
    - CVE-2015-8550
  * xen-netback: don't use last request to determine minimum Tx credit
    - CVE-2015-8550
  * xen-netback: use RING_COPY_REQUEST() throughout
    - CVE-2015-8550
  * xen-blkback: only read request operation from shared ring once
    - CVE-2015-8550
  * xen-blkback: read from indirect descriptors only once
    - CVE-2015-8550
  * xen-scsiback: safely copy requests
    - CVE-2015-8550
  * xen/pciback: Save xen_pci_op commands before processing it
    - CVE-2015-8550
  * xen/pciback: Return error on XEN_PCI_OP_enable_msi when device has MSI
    or MSI-X enabled
    - CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
  * xen/pciback: Return error on XEN_PCI_OP_enable_msix when device has MSI
    or MSI-X enabled
    - CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
  * xen/pciback: Do not install an IRQ handler for MSI interrupts.
    - CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
  * xen/pciback: For XEN_PCI_OP_disable_msi[|x] only disable if device has
    MSI(X) enabled.
    - CVE-2015-8551, CVE-2015-8552, CVE-2015-8553
  * xen/pciback: Don't allow MSI-X ops if PCI_COMMAND_MEMORY is not set.
    - CVE-2015-8551, CVE-2015-8552, CVE-2015-8553

 -- Kamal Mostafa <email address hidden> Thu, 17 Dec 2015 12:54:53 -0800