Bug 2270093 (CVE-2023-52615)

Summary:	CVE-2023-52615 kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng
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, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kyoshida, 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 4.19.307, kernel 5.4.269, kernel 5.10.210, kernel 5.15.149, kernel 6.1.76, kernel 6.6.15, kernel 6.7.3, kernel 6.8	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the hwrng component of the Linux kernel, which caused a deadlock when reading from /dev/hwrng into memory and mmap-ed from /dev/hwrng. This issue is triggered by a recursive read during a page fault and allows a local, authenticated attacker to cause a denial of service.	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:	2270094
Bug Blocks:	2270105

Description Zack Miele 2024-03-18 13:18:55 UTC

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

hwrng: core - Fix page fault dead lock on mmap-ed hwrng

The Linux kernel CVE team has assigned CVE-2023-52615 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/20240318101458.2835626-10-lee@kernel.org/T

Comment 1 Zack Miele 2024-03-18 13:19:25 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2270094]

Comment 5 Justin M. Forbes 2024-03-25 19:49:08 UTC

This was fixed for Fedora with the 6.7.3 stable kernel updates.

Comment 7 Alex 2024-06-09 15:15:06 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52615 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags READ LOCK DEADLOCK  ; 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 14 errata-xmlrpc 2024-07-02 08:54:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:4211 https://access.redhat.com/errata/RHSA-2024:4211

Comment 15 errata-xmlrpc 2024-07-08 02:02:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:4352 https://access.redhat.com/errata/RHSA-2024:4352

Comment 16 errata-xmlrpc 2024-11-12 09:20:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315

Comment 17 errata-xmlrpc 2025-03-10 10:43:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:2490 https://access.redhat.com/errata/RHSA-2025:2490