Bug 660188 (CVE-2010-4263)

Summary: CVE-2010-4263 kernel: igb panics when receiving tag vlan packet
Product: [Other] Security Response Reporter: Eugene Teo (Security Response) <eteo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: arozansk, davej, dhoward, fhrbata, jpirko, kernel-mgr, kmcmartin, ltroan, lwang, mfuruta, plyons, pmatouse, rrosario, tcallawa
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-03-28 08:56:33 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 652804, 660189, 660190, 660191, 660192    
Bug Blocks:    

Description Eugene Teo (Security Response) 2010-12-06 01:58:55 UTC 
If igb's SR-IOV and promiscuous mode are enabled and the interface receives a tag VLAN packet, this will result in a null pointer dereference. To fix this, we will backport upstream commit 31b24b95 to ensure that vlan_gro_receive is only used if vlans have been registered to the adapter structure.

[ This fixes bugzilla entry 15582 -Eric Dumazet]

It matters if CONFIG_PCI_IOV is enabled, e.g. grep -ir SRIOV drivers/net/igb/*.

Upstream commit:
http://git.kernel.org/linus/31b24b95

References:
https://bugzilla.kernel.org/show_bug.cgi?id=15582
Comment 4 Eugene Teo (Security Response) 2010-12-06 02:45:11 UTC 
Statement:

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 4 and Red Hat Enterprise MRG as they did not include support for PCI I/O Virtualization (IOV). Future updates in Red Hat Enterprise Linux 5 and 6 may address this flaw.
Comment 5 Eugene Teo (Security Response) 2010-12-08 08:26:19 UTC 
Acknowledgements:

Red Hat would like to thank Kosuke Tatsukawa for reporting this issue.
Comment 6 errata-xmlrpc 2011-01-11 19:45:24 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0007 https://rhn.redhat.com/errata/RHSA-2011-0007.html
Comment 7 errata-xmlrpc 2011-01-13 22:03:04 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html
Comment 8 errata-xmlrpc 2011-01-14 09:03:36 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html