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Bug 701890 - misprocessing of invalid PID argument for ksh built-in kill
Summary: misprocessing of invalid PID argument for ksh built-in kill
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: ksh
Version: 6.0
Hardware: Unspecified
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Michal Hlavinka
QA Contact: qe-baseos-tools-bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-05-04 08:16 UTC by Michal Hlavinka
Modified: 2011-12-06 16:18 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 691850
Environment:
Last Closed: 2011-12-06 16:18:45 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:1647 0 normal SHIPPED_LIVE ksh bug fix update 2011-12-06 00:50:33 UTC

Description Michal Hlavinka 2011-05-04 08:16:46 UTC
+++ This bug was initially created as a clone of Bug #691850 +++

Description of problem: When the ksh built-in kill is called with a very large, non-existent PID value, it's treated like -1 (kill all processes owned by the user).

Version-Release number of selected component (if applicable): 20080202-14.el5

How reproducible: Every time

Steps to Reproduce:
1.Start a ksh session
2.Run a command like "kill 11269117401228512356"
  
Actual results:  All processes owned by the user are killed, like the -1 argument would normally do.

Expected results: 
error message - "kill: 11269117401228512356: no such process"

Additional info:  We encountered this when a user was trying to kill a series of processes.  The user mis-entered the process list without separating spaces.

--- Additional comment from mhlavink on 2011-05-04 04:12:19 EDT ---

reproducible

--- Additional comment from mhlavink on 2011-05-04 04:15:26 EDT ---

Created attachment 496723 [details]
patch to fix this

Comment 3 Michal Hlavinka 2011-08-12 08:51:53 UTC
when checking test plan for ksh, I've found a regression:

this fix caused ksh regression:
$ ksh -c 'kill %'
Segmentation fault (core dumped)

Comment 4 Michal Hlavinka 2011-08-12 09:22:04 UTC
ok, this regression does not happen with ksh version we have in RHEL-6

Comment 6 errata-xmlrpc 2011-12-06 16:18:45 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2011-1647.html


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