Bug 18988

Summary:	sshd does not close file descriptors
Product:	[Retired] Red Hat Linux	Reporter:	Gerald Teschl <gt>
Component:	openssh	Assignee:	Nalin Dahyabhai <nalin>
Status:	CLOSED RAWHIDE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	7.0	CC:	pekkas, t8m
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-01-24 11:29:22 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Gerald Teschl 2000-10-12 18:29:51 UTC

If I upgrade a package which restarts sshd in its post script, sshd will
inherit
the file descriptor pointing to this rpm. Unfortunately it does not close
it.

In particular, if the rpm was on an nfs directory it is no longer possible
to unmount this directory unless you physically walk to the machine
(this is why I consider it "high" priority)

There are similar problems with lpd and maybe other services.

Comment 1 Gerald Teschl 2000-10-16 08:47:46 UTC

As Jeff (jbj) pointed out: If the rpm is on a CD, it is not possible
to unmount the CD!

Comment 2 Pekka Savola 2000-10-28 15:15:01 UTC

Hmm.. Isn't this an rpm issue?

Comment 3 Gerald Teschl 2001-01-24 11:29:18 UTC

I also think that this is an rpm issue. rpm should close the file descriptor
before giving control
to sshd.

Comment 4 Nalin Dahyabhai 2001-04-03 00:13:25 UTC

This issue is spread among lots of guilty apps, which in an ideal world would
all be closing extra descriptors.  A workaround which catches most of these
cases is in initscripts-5.69.