Red Hat Bugzilla – Bug 134363
should use /var/run/sendmail/sendmail.pid and /var/run/sendmail/sm-client.pid
Last modified: 2014-03-16 22:48:53 EDT
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Description of problem:
There are five lines of shell script in /etc/init.d/sendmail to set the correct ownership on /var/run/sm-client.pid. It would be a lot easier to manage if there was a directory /var/run/sendmail/ which was writable by user smmsp. It would be easier for SE Linux to manage and more secure too (avoids the problem of a rogue daemon being used to create a pidfile for a DOS attack).
A /var/run/sendmail/ directory will make scripts simpler, make the system more secure, and generally be good in every way.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
ls -l /var/run
This is not possible with the actual daemon function from
Assigning to initscripts for now.
Not expecting to look at this for FC3.
initscripts-8.22-1 support storing the pid file in a different place.
killproc doesn't yet support a different name for the pidfile, so I'll assign
it to initscripts again.
(killproc -p /var/run/sm-client.pid sendmail)
What is missing?
killproc is not able to use find pid files in /var/run/*/ ...
Oh, it can use the pid file, but it ignores -p when removing it. Thanks, fixed
initscripts-8.32-1 has the fixed killproc.
There is still a problem with killproc:
If I do not specify the pid_file, sendmail is killed even if the pid file is not
there or empty (works for pid files in /var/run).
If I specify a pid file for killproc, which is needed if the pid file is located
in /var/run/sendmail, and the file does not exist or is empty, killproc does not
try to kill sendmail at all.
Assigning to initscripts for now. Please reassign, if it is solved in initscipts.
Thomas, why is that a problem?
Not killing random sendmail processes run by unprivileged users is a feature,
I'd like to have a killproc which behaves the same for pid files in /var/run and
/var/run/XYZ. sendmail is using the call without the pid file in the init script
for sendmail and sm-client. I'd like to have the same behaviour with the pid
files in /var/run/sendmail, maybe with an option to killproc, where i can
specify that the pid file is in sub-dir sendmail of /var/run.
Returning to this...
Thomas, I understand you want to be conservative, but I wonder whether it is
worth adding another option.
I actually think that init.d/sendmail needs the changed killproc behavior
(checking only the pid file) rather than the original (defaulting to using
pidof), because pidof can't distinguish between the sendmail and sm-client
processes (the process name of both is "sendmail").
Is there a real risk of runaway sendmail child processes that aren't recorded in
the pid files?
Based on the date this bug was created, it appears to have been reported
against rawhide during the development of a Fedora release that is no
longer maintained. In order to refocus our efforts as a project we are
flagging all of the open bugs for releases which are no longer
maintained. If this bug remains in NEEDINFO thirty (30) days from now,
we will automatically close it.
If you can reproduce this bug in a maintained Fedora version (7, 8, or
rawhide), please change this bug to the respective version and change
the status to ASSIGNED. (If you're unable to change the bug's version
or status, add a comment to the bug and someone will change it for you.)
Thanks for your help, and we apologize again that we haven't handled
these issues to this point.
The process we're following is outlined here:
We will be following the process here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this
doesn't happen again.
The same code is in /etc/init.d/sendmail in Fedora 8 and the same issue
Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
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Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 9. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
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Bug Reporter: Thank you for reporting this issue and we are sorry that
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Although we aim to fix as many bugs as possible during every release's
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The process we are following is described here:
killproc allows specifying an alternate pid file, so this should work.