Bug 2283453 (CVE-2021-47501)

Summary:	CVE-2021-47501 kernel: i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc
Product:	[Other] Security Response	Reporter:	ybuenos
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, jguisado, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, trathi, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.10.85, kernel 5.15.8, kernel 5.16	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux kernel's drivers for Intel i40e network interfaces that could cause system stability issues when writing statistics for specific hardware to debugfs.	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:	2314655
Bug Blocks:	2283494

Description ybuenos 2024-05-27 11:09:01 UTC

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

i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc

The Linux kernel CVE team has assigned CVE-2021-47501 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052450-CVE-2021-47501-e183@gregkh/T

Comment 1 Alex 2024-06-09 15:44:56 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47501 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE DANGER NULLPTR SIMPLEFIX NETWORK IMPROVEONLY  ; 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.