[Bug 1771345] Please test proposed package

[Robie Basak]

Hello Julian, or anyone else affected,

Accepted util-linux into artful-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/util-
linux/2.30.1-0ubuntu4.2 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-artful to verification-done-artful. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-artful. In either case, details of your
testing will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: util-linux (Ubuntu Bionic)
       Status: Triaged => Fix Committed

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https://bugs.launchpad.net/bugs/1771345

Title:
  lscpu possible crash in min/max frequency

Status in util-linux package in Ubuntu:
  Fix Committed
Status in util-linux source package in Xenial:
  Fix Committed
Status in util-linux source package in Artful:
  Fix Committed
Status in util-linux source package in Bionic:
  Fix Committed

Bug description:
  [Impact]
  lscpu prior to 2.32 does not correctly check for NULL members in min/max CPU frequency arrays and can call atof() on them, leading to crashes. It seems that's what caused the verification to fail for bug 1732865. The following fixes have been committed upstream:

  from 2.30: https://github.com/karelzak/util-
  linux/commit/0145d84a381fc2fcd7d37e0dbf3d9dff69609ecd

  from 2.32: https://github.com/karelzak/util-
  linux/commit/95f09bc63c564c50ec2c393352801cc056faaea2

  I plan to backport them to xenial (both patches); and artful, bionic
  (second patch, they are > 2.30).

  [Regression potential]
  The worst possible regression is that lscpu would fail to correctly report min/max frequencies, but it seems unlikely, as we're only adding checks against null pointers / move an atof into a loop.

  [Test case]
  Extract attached segvtest.tar.gz and run lscpu -s segvtest and check that it does not crash (this removes min mhz file for cpu #0 for testing).

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