Bug 2270116 (CVE-2024-26634)

Summary:	CVE-2024-26634 kernel: net: fix removing a namespace with conflicting altnames
Product:	[Other] Security Response	Reporter:	Zack Miele <zmiele>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.1.76, kernel 6.6.15, kernel 6.7.3, kernel 6.8	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in network subsystem of Linux Kernel causing a system crash when removing a network namespace with conflicting alternate names. When physical interfaces are moved back to the initial namespace, the main interface name could be overwritten if it conflicts, but conflicting alternate names were not properly discarded, leading to DoS.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2270117
Bug Blocks:	2270180

Description Zack Miele 2024-03-18 13:44:38 UTC

In the Linux kernel, the following vulnerability has been resolved:

net: fix removing a namespace with conflicting altnames

The Linux kernel CVE team has assigned CVE-2024-26634 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/20240318101458.2835626-12-lee@kernel.org/T

Comment 1 Zack Miele 2024-03-18 13:45:11 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2270117]

Comment 5 Justin M. Forbes 2024-03-25 19:38:37 UTC

This was fixed for Fedora with the 6.7.3 stable kernel updates.

Comment 7 Alex 2024-06-09 13:10:08 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26634 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 7663d522099ecc464512164e660bc771b2ff7b64	YES			NO	NO	unknown (where first YES/NO value means if related sources built).