Bug 2266337 (CVE-2021-46931)

Summary:	CVE-2021-46931 kernel: net/mlx5e: Wrap the tx reporter dump callback to extract the sq
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
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, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
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 flaw was found in the Linux kernel, specifically affecting the net/mlx5e module that is the NVIDIA MLX5 common driver. The issue arises from an error in casting the arguments of a transmission reporter function. This mismatch leads to a stack overflow and kernel pani	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:	2266339
Bug Blocks:	2266445

Description Mauro Matteo Cascella 2024-02-27 16:23:42 UTC

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

net/mlx5e: Wrap the tx reporter dump callback to extract the sq

The Linux kernel CVE team has assigned CVE-2021-46931 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022750-CVE-2021-46931-a468@gregkh/T/#u

Comment 1 Mauro Matteo Cascella 2024-02-27 16:26:27 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2266339]

Comment 6 Justin M. Forbes 2024-02-27 18:55:31 UTC

This was fixed for Fedora with the 5.15.13 stable kernel updates.

Comment 9 Alex 2024-06-09 15:10:18 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-46931 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE OOB DANGER NETWORK  ; 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.