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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

I built Xenial test kernel with a pick of eb5798f2 and d846e78e4.  The
test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1582852/

Can you test this kernel and see if it resolves this bug?

Thanks in advance!

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https://bugs.launchpad.net/bugs/1582852

Title:
  IMA crashes while verifying signatures

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

Bug description:
  The application of a kernel patch to fix Bug 1569924 causes crashes
  when IMA is verifying signatures:

  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1569924

  The following fix was applied:

  commit e6b195bb9adbf92b62f466b02fb8ae9b4294ad5e
  Author: Tadeusz Struk <tadeusz.struk@xxxxxxxxx>
  Date:   Tue Feb 2 10:08:53 2016 -0800

      crypto: KEYS: convert public key and digsig asym to the akcipher api
      

  This patch was taken from here:

  https://github.com/torvalds/linux/commit/db6c43bd2132dc2dd63d73a6d1ed601cffd0ae06.patch

  The series was posted here (not sure whether this is the latest
  version)

  https://lkml.org/lkml/2016/2/2/575

  The following two patches should be applied as well. They stem from
  that same series of patches as the one that is already applied.

  https://github.com/torvalds/linux/commit/eb5798f2e28f3b43091cecc71c84c3f6fb35c7de.patch
  https://github.com/torvalds/linux/commit/d846e78e491ff4dd0747026c02414844d504fcb6.patch

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