Bug 2281131 (CVE-2024-27435)

Summary:	CVE-2024-27435 kernel: nvme: fix reconnection fail due to reserved tag allocation
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, 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 6.1.83, kernel 6.6.23, kernel 6.7.11, kernel 6.8.2, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	CVE-2024-27435 is a Linux kernel vulnerability in the NVMe over RDMA implementation, where a reconnection failure occurs due to a deadlock caused by reserved tag allocation. The issue arises when the admin queue is quiesced while resetting the controller, causing a keep-alive request to hold the only reserved tag. As the admin queue and fabric queue share this tagset, the reconnection fails because no available tags are left for the connection command.	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:	2281132
Bug Blocks:	2281733

Description Zack Miele 2024-05-17 22:26:47 UTC

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

nvme: fix reconnection fail due to reserved tag allocation

The Linux kernel CVE team has assigned CVE-2024-27435 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051710-CVE-2024-27435-c465@gregkh/T

Comment 1 Zack Miele 2024-05-17 22:27:25 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281132]

Comment 5 Alex 2024-06-09 15:31:17 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-27435 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DEADLOCK SIMPLEFIX NVME  ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.

Comment 16 errata-xmlrpc 2024-07-17 00:48:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:4583 https://access.redhat.com/errata/RHSA-2024:4583