Bug 1420250 (CVE-2014-9914)

Summary:	CVE-2014-9914 kernel: Race condition in the ip4_datagram_release_cb function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aquini, bhu, dhoward, fhrbata, gansalmon, hwkernel-mgr, iboverma, ichavero, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, madhu.chinakonda, matt, mchehab, mcressma, nmurray, pholasek, plougher, rt-maint, rvrbovsk, slawomir, williams, wmealing
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A race condition in the ip4_datagram_release_cb function in net/ipv4/datagram.c in the Linux kernel allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect expectations about locking during multithreaded access to internal data structures for IPv4 UDP sockets.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:07:15 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:	1431936
Bug Blocks:	1420251

Description Andrej Nemec 2017-02-08 09:47:55 UTC

Race condition in the ip4_datagram_release_cb function in net/ipv4/datagram.c in the Linux kernel allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect expectations about locking during multithreaded access to internal data structures for IPv4 UDP sockets.

Upstream patch:

https://github.com/torvalds/linux/commit/9709674e68646cee5a24e3000b3558d25412203a

Comment 1 Wade Mealing 2017-03-14 05:03:44 UTC

Statement:

This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux and realtime kernels.