Bug 2283388 (CVE-2021-47561)

Summary:	CVE-2021-47561 kernel: i2c: virtio: disable timeout handling
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, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rkeshri, 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 5.15.6, kernel 5.16	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's i2c virtio driver, where timeout handling was improperly managed. If a timeout occurs, the device may continue to process buffers that the guest has already freed, leading to potential data corruption on the I2C bus.	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:
Bug Blocks:	2283496

Description ybuenos 2024-05-27 09:32:37 UTC

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

i2c: virtio: disable timeout handling

The Linux kernel CVE team has assigned CVE-2021-47561 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052451-CVE-2021-47561-4a07@gregkh/T

Comment 2 Alex 2024-06-09 17:51:36 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47561 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags DANGER USB VIRT  ; these flags parsed automatically based on patch 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.