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:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	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:
Embargoed:
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