Bug 2282694 (CVE-2023-52824)

Summary:	CVE-2023-52824 kernel: kernel: watch_queue: copy user-array safely
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
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 5.15.140, kernel 6.1.64, kernel 6.5.13, kernel 6.6.3, kernel 6.7	Doc Type:	If docs needed, set a value
Doc Text:	[REJECTED CVE] A memory handling vulnerability was identified in the Linux kernel's watch_queue subsystem. The issue stems from the lack of overflow checks when duplicating a user-space array with memdup_user(). This could allow an attacker to exploit the absence of safeguards, potentially leading to a denial-of-service condition.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2024-07-02 10:54:23 UTC	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:	2282862

Description Mauro Matteo Cascella 2024-05-22 19:34:30 UTC

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

kernel: watch_queue: copy user-array safely

The Linux kernel CVE team has assigned CVE-2023-52824 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052106-CVE-2023-52824-3586@gregkh/T

Comment 2 Alex 2024-06-09 17:30:49 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52824 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags SIMPLEFIX  ; 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.

Comment 7 TEJ RATHI 2024-06-26 13:03:32 UTC

This CVE has been rejected upstream: https://lore.kernel.org/linux-cve-announce/2024052415-REJECTED-6782@gregkh/T/