Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

Bug 98229

Summary:	Readline causes SEGFAULT when meta characters are entered into R language console
Product:	[Retired] Red Hat Linux	Reporter:	Marc Schwartz <marc_schwartz>
Component:	readline	Assignee:	Tim Waugh <twaugh>
Status:	CLOSED RAWHIDE	QA Contact:	Jay Turner <jturner>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	9	CC:	srevivo
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
URL:	https://www.stat.math.ethz.ch/pipermail/r-devel/2003-June/026951.html
Whiteboard:
Fixed In Version:	4.3-7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-07-07 12:04:42 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 Marc Schwartz 2003-06-28 14:25:52 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030530

Description of problem:
This problem occurs when using the R language (http://www.r-project.org/)
console. This was initially reported when using R under Kconsole when typing
Shift-Enter
(https://www.stat.math.ethz.ch/pipermail/r-devel/2003-June/026906.html) and is
consistently reproducable there.

Later research
(https://www.stat.math.ethz.ch/pipermail/r-devel/2003-June/026951.html) was able
to reproduce this under all consoles and appears to be associated with prior
readline bugs that have been reported, where meta character sequences send
applications into an infinite loop. The error message that is generated is:

Program received signal SIGSEGV, Segmentation fault.
0x400dd7fe in _rl_dispatch_subseq ()
from /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../../libreadline.so.4

Several patches for readline 4.3 are available here:

ftp://ftp.gnu.org/gnu/readline/readline-4.3-patches

with the first patch:

ftp://ftp.gnu.org/gnu/readline/readline-4.3-patches/readline43-001

addressing this particular issue.

The gentleman that initially reported this bug has generated an updated RPM
using the above patch
(https://www.stat.math.ethz.ch/pipermail/r-devel/2003-June/026959.html)
resulting in resolution of the issue, so it would seem that RH would need to do
the same.

Note that this bug has also been reproduced under RH 8.0 using readline 4.3 as well.


Version-Release number of selected component (if applicable):
readline-4.3-5

How reproducible:
Always

Steps to Reproduce:
1. Running R under Kconsole, type SHIFT-ENTER

2. Under other consoles, type ESC-O-M (that's the letter 'O', not zero)


Actual Results:  Segmentation Fault