kde leaked file descriptors: call for help
Paul Black
paul-fedora at saturnine.org.uk
Thu Apr 16 19:14:44 UTC 2009
2009/4/16 Rex Dieter:
>
> selinux policy denials have long id'd kde's konsole app to be leaking file
> descriptors. It's been an open issue for awhile now, see:
> https://bugzilla.redhat.com/show_bug.cgi?id=484370
> http://bugs.kde.org/show_bug.cgi?id=180785
>
> Unfortunatley, upstream developers, so far, haven't been able to reproduce
> the problem.
>
> Upon actively digging myself recently, it appears to be something that looks
> worse than previously identified, going deeper than just konsole. I've ran
> out of ideas to track this further, any help/insight/pointers appreciated.
I don't know if this is much of an insight ....
If I run "sleep 10000" on a console, using lsof I find the following
extra file descriptors open:
sleep 12640 paul 4u unix 0xffff88009d543180 0t0
39745 socket
sleep 12640 paul 9u unix 0xffff8800b8539e40 0t0
39985 /tmp/ksocket-paul/kdeinit4__0
sleep 12640 paul 10u unix 0xffff88009d543180 0t0
39745 socket
sleep 12640 paul 12u unix 0xffff88009d543180 0t0
39745 socket
sleep 12640 paul 13u unix 0xffff88009d543180 0t0
39745 socket
sleep 12640 paul 14u unix 0xffff88009d543180 0t0
39745 socket
These match up the the AVC denial from SELinux. Further playing with
lsof shows that the earliest processes with these open is kdeinit4.
Apologies if I'm teaching you to suck eggs.
--
Paul
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