Bug 2273082 (CVE-2023-52638)

Summary:	CVE-2023-52638 kernel: can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock
Product:	[Other] Security Response	Reporter:	Robb Gatica <rgatica>
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, 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 5.15.149, kernel 6.1.79, kernel 6.6.18, kernel 6.7.6, kernel 6.8	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's Controller Area Network (CAN) protocol, within the J1939 protocol implementation. This issue occurs due to a potential deadlock caused by a race condition involving three locks: j1939_socks_lock, active_session_list_lock, and sk_session_queue_lock. This issue was identified in a Syzbot bug report.	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:	2273083
Bug Blocks:	2273079

Description Robb Gatica 2024-04-03 22:02:22 UTC

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

can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock

The Linux kernel CVE team has assigned CVE-2023-52638 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024040334-CVE-2023-52638-26a6@gregkh/T

Comment 1 Robb Gatica 2024-04-03 22:02:55 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2273083]

Comment 6 Alex 2024-06-09 15:11:25 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52638 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags LOCK DEADLOCK INIT RACE  ; 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 11 errata-xmlrpc 2024-07-15 05:11:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:4533 https://access.redhat.com/errata/RHSA-2024:4533

Comment 12 errata-xmlrpc 2024-07-15 21:23:13 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:4554 https://access.redhat.com/errata/RHSA-2024:4554

Comment 13 errata-xmlrpc 2024-07-17 00:48:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:4583 https://access.redhat.com/errata/RHSA-2024:4583