** Also affects: sudo (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Also affects: sudo (Ubuntu Zesty)
Importance: Undecided
Status: New
** Also affects: sudo (Ubuntu Xenial)
Importance: Undecided
Status: New
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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:
Triaged
Status in sudo source package in Xenial:
New
Status in sudo source package in Yakkety:
New
Status in sudo source package in Zesty:
New
Status in sudo source package in Artful:
Triaged
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@tough-calf:~$ sudo sleep 300; echo $?
2. In shell 2. run:
root@tough-calf:~# killall -TERM sleep
3. In broken versions shell 1. shows this:
ubuntu@tough-calf:~$ sudo sleep 300; echo $?
0
4. Install fixed version
5. Execute steps 1. and 2.
6. In fixed version shell 1. shows this:
ubuntu@tough-calf:~$ 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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