Bug 1295802 (CVE-2015-8746)

Summary:	CVE-2015-8746 kernel: when NFSv4 migration is executed, kernel oops occurs at NFS client
Product:	[Other] Security Response	Reporter:	Vladis Dronov <vdronov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aquini, arm-mgr, bhu, dhoward, fhrbata, gansalmon, iboverma, itamar, jen, jforbes, jkacur, joelsmith, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, kstutsma, lgoncalv, madhu.chinakonda, matt, mchehab, mcressma, nmurray, plougher, rt-maint, rvrbovsk, slawomir, slong, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	A NULL pointer dereference flaw was found in the Linux kernel: the NFSv4.2 migration code improperly initialized the kernel structure. A local, authenticated user could use this flaw to cause a panic of the NFS client (denial of service).	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:47:04 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:	1290679, 1295803, 1334733, 1334734
Bug Blocks:	1291211

Description Vladis Dronov 2016-01-05 13:51:03 UTC

A flaw was found in the Linux kernel in the NFSv4.2 migration code that can cause a panic of the NFS client due to improperly initialized kernel structure.

References:

An upstream patch: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=18e3b739f

Comment 1 Vladis Dronov 2016-01-05 13:53:05 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1295803]

Comment 3 Vladis Dronov 2016-01-05 14:11:09 UTC

Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code with the flaw is not present in the products listed.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. Future updates for the respective releases may address the issue.

Comment 5 Adam Mariš 2016-01-06 13:08:48 UTC

CVE assignment:

http://seclists.org/oss-sec/2016/q1/27

Comment 8 errata-xmlrpc 2016-11-03 14:51:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2574 https://rhn.redhat.com/errata/RHSA-2016-2574.html

Comment 9 errata-xmlrpc 2016-11-03 19:39:14 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2584 https://rhn.redhat.com/errata/RHSA-2016-2584.html

Comment 10 errata-xmlrpc 2016-11-03 21:30:46 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2574 https://rhn.redhat.com/errata/RHSA-2016-2574.html

Comment 11 errata-xmlrpc 2016-11-03 21:46:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2584 https://rhn.redhat.com/errata/RHSA-2016-2584.html