[Bug 1686803] Please test proposed package

[Andy Whitcroft]

Hello Vinson, or anyone else affected,

Accepted sudo into xenial-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/sudo/1.8.16-0ubuntu1.5
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-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. 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!

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https://bugs.launchpad.net/bugs/1686803

Title:
  sudo returns exit code 0 if child is killed with SIGTERM

Status in sudo:
  Unknown
Status in sudo package in Ubuntu:
  Fix Released
Status in sudo source package in Xenial:
  Fix Committed
Status in sudo source package in Yakkety:
  Fix Committed
Status in sudo source package in Zesty:
  Fix Committed
Status in sudo source package in Artful:
  Fix Released

Bug description:
  [Impact]

   * sudo returns exit code 0 if child is killed with signals other than SIGINT
   * This can break scripts assuming successful execution of the command ran by
     sudo

  [Test Case]

   * Open two separate shells
     1. In shell 1. run:
       ubuntu at tough-calf:~$ sudo sleep 300; echo $?
     2. In shell 2. run:
       root at tough-calf:~# killall -TERM sleep
     3. In broken versions shell 1. shows this:
       ubuntu at tough-calf:~$ sudo sleep 300; echo $?
       0

     4. Install fixed version
     5. Execute steps 1. and 2.
     6. In fixed version shell 1. shows this:
       ubuntu at tough-calf:~$ sudo sleep 300; echo $?
       Terminated
       143

  [Regression Potential]

   *  sudo may exit with a different status than expected

  [Other Info]

  original bug description:

  Please backport upstream sudo changeset 10917:50b988d0c97f "The fix
  for Bug #722 contained a typo/thinko that resulted in the" to xenial,
  yakkety, and zesty versions of sudo.

  This will fix a regression documented by this upstream bug report:
  https://bugzilla.sudo.ws/show_bug.cgi?id=784

  sudo 1.8.15 changeset 10229:153f016db8f1 "When the command sudo is
  running is killed by a signal, sudo will" introduced a regression
  where the exit status is always 0 when a command is killed by a signal
  other than SIGINT. https://www.sudo.ws/repos/sudo/rev/153f016db8f1

  This will be fixed in sudo 1.8.20 with changeset 10917:50b988d0c97f
  "The fix for Bug #722 contained a typo/thinko that resulted in the".
  https://www.sudo.ws/repos/sudo/rev/50b988d0c97f

  trusty sudo is based off sudo 1.8.9 and is not affected. xenial sudo
  based off sudo 1.8.16, yaketty sudo based off sudo 1.8.16, and zesty
  sudo based off 1.8.19 need the fix.

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