Bug 3776 – lpc dumps core on *any* command

Bug 3776 - lpc dumps core on *any* command

Summary:	lpc dumps core on any command

Status:	CLOSED NEXTRELEASE

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	lpr (Show other bugs)
Sub Component:
Version:	6.0
Hardware:	i386 Linux

Priority	high Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Bill Nottingham
QA Contact:
Docs Contact:

URL:
Whiteboard:
Keywords:	Security

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	1999-06-28 09:33 EDT by ms
Modified:	2014-03-16 22:09 EDT (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	1999-07-12 10:22:57 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description ms 1999-06-28 09:33:50 EDT

If you enter any command in "lpc" e.g.

[root@research /root]# lpc
lpc> status

lpc will dump core

[root@research /root]# rpm -qf `which lpc`
lpr-0.35-1

Comment 1 Bill Nottingham 1999-06-28 10:09:59 EDT

what's your /etc/printcap look like?

Comment 2 Bill Nottingham 1999-07-08 11:06:59 EDT

I still can't reproduce this. Can you get a stack trace?

Comment 3 Bill Nottingham 1999-07-09 18:01:59 EDT

ack, could you try the debug version at:
http://charlotte.redhat.com/~notting/ftp/lpr/lpr-0.35-1debug.i386.rpm,
and get a stack trace from that?

Comment 4 ms 1999-07-12 06:52:59 EDT

Fixed here:

--- lpc.c.orig  Mon Jul 12 10:52:42 1999
+++ lpc.c       Mon Jul 12 12:39:27 1999
@@ -180,7 +180,9 @@
 {
        register char *cp;
        register char **argp = margv;
-       int n;
+       /* the compiler doesn't initialize n, so it's value is bogus
+           and the for loop terminates without doing anything */
+       int n = 0;

        margc = 0;
        for (cp = cmdline; *cp && (cp - cmdline) < sizeof(cmdline) &&
n < 20; n++) {

Comment 5 Bill Nottingham 1999-07-12 10:22:59 EDT

Thanks for the patch & tracking this down. It's rather obvious
in hindsight. Fixed in lpr-0.38-2.

Note You need to log in before you can comment on or make changes to this bug.