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Bug 682726 - fix skb leak in iwlwifi
fix skb leak in iwlwifi
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel (Show other bugs)
6.1
Unspecified Unspecified
unspecified Severity unspecified
: rc
: ---
Assigned To: Stanislaw Gruszka
desktop-bugs@redhat.com
:
Depends On:
Blocks:
  Show dependency tree / graph
 
Reported: 2011-03-07 07:18 EST by Stanislaw Gruszka
Modified: 2011-05-19 08:44 EDT (History)
3 users (show)

See Also:
Fixed In Version: kernel-2.6.32-130.el6
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2011-05-19 08:44:00 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0542 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 6.1 kernel security, bug fix and enhancement update 2011-05-19 07:58:07 EDT

  None (edit)
Description Stanislaw Gruszka 2011-03-07 07:18:15 EST 
Description of problem:
When there is pending transfer and we down interface skb's are not freed. What cause hung when performing shutdown at iptables module unload.

Version-Release number of selected component (if applicable):
2.6.32-119.el6

How reproducible:
Random.

Steps to Reproduce:
1. Try to download data via iwlwifi (any device except 3945)
2. Do ifconfig wlan1 down; Or reassociate with different wireless network.
3. Try to unload iptables modules:
  /etc/init.d/iptables stop
  /etc/init.d/ip6tables stop
  
Actual results:
Stoping ip6tables may hung.

Expected results:
No hung.
Comment 1 RHEL Product and Program Management 2011-03-07 07:20:59 EST 
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has 
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed 
products. This request is not yet committed for inclusion in an Update release.
Comment 5 Stanislaw Gruszka 2011-03-21 03:51:03 EDT 
Note: patch does not fix problem entirely, there is still possible to have single skb leak and hung at iptables modules unload. That problem still need to be recognized and fixed, but that patch is needed anyway. See also my upstream comments:  http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=387f3381f732d8fa1b62213ae3276f2ae712dbe2
Comment 7 Aristeu Rozanski 2011-04-07 09:50:16 EDT 
Patch(es) available on kernel-2.6.32-130.el6
Comment 10 Vladimir Benes 2011-04-29 04:18:53 EDT 
tested with CEntrino Ultimate 6300.. no problems can in shutting down machine or iptables only
-> VERIFIED
Comment 11 errata-xmlrpc 2011-05-19 08:44:00 EDT 
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/RHSA-2011-0542.html
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