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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
quantal' to 'verification-done-quantal'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!

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https://bugs.launchpad.net/bugs/1256988

Title:
  netns: crash during namespace destroy

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Precise:
  Fix Committed
Status in “linux” source package in Quantal:
  Fix Committed
Status in “linux” source package in Raring:
  Fix Released

Bug description:
  [Impact]
  * When restoring an iptable in a network namespace, if the network namespace is deleted the kernel crashes.

  [Test Case]
  $ sudo -s
  # ip netns add foobar
  # ip netns exec foobar iptables -A OUTPUT -m recent --rcheck --rsource
  # ip netns del foobar

  [Regression Potential]
  * The following patches fix the issue:
  665e205c1
  32263dd1b

  In addition this patch is required to fix a potential regression introduced by the original fix:
  https://git.kernel.org/cgit/linux/kernel/git/pablo/nf.git/commit/?id=b4ef4ce09308955d1aa54a289c0162607b3aa16c

  Two are upstream linux patches, the last it still in the netfilter
  upstream tree.

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