Bug 464010

Summary:	uprobes on cloney shells can cause SEGV
Product:	Red Hat Enterprise Linux 5	Reporter:	Frank Ch. Eigler <fche>
Component:	systemtap	Assignee:	Frank Ch. Eigler <fche>
Status:	CLOSED ERRATA	QA Contact:	BaseOS QE <qe-baseos-auto>
Severity:	high	Docs Contact:
Priority:	medium
Version:	5.3	CC:	dsmith, mjw, pmuller, riek
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-01-20 21:06:48 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 Frank Ch. Eigler 2008-09-25 20:47:21 UTC

See http://sources.redhat.com/PR6829.
Reproducer:

# stap -e 'probe process("zsh").function("main") {log(pp())}' &
# zsh
segmentation fault | done | ...

A fix is in development and will need to be copied to the RHEL5.3
branch.

Comment 4 Frank Ch. Eigler 2008-10-22 20:31:32 UTC

This bug will be linked to that erratum once its fix is ready for
backporting to the rhel5.3 branch code ("MODIFIED").  There will
probably be some other related fixes also coming along, such as
systemtap PR 5274.

Comment 5 David Smith 2008-11-05 15:32:48 UTC

The following set of patches have been added to the specfile for this issue:

systemtap-0.7.2-PR6829-avoid-unregister_uprobe.patch
systemtap-0.7.2-PR6871-weaken-prologue-assertion.patch
systemtap-0.7.2-PR5274-s390-uprobes-longjump-support.patch
systemtap-0.7.2-PR5274-s390-task_finder-support.patch

Comment 10 errata-xmlrpc 2009-01-20 21:06:48 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHEA-2009-0184.html