Bug 2292324 (CVE-2024-36968)

Summary:	CVE-2024-36968 kernel: Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
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, 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 6.6.32, kernel 6.8.11, kernel 6.9.2, kernel 6.10-rc1	Doc Type:	If docs needed, set a value
Doc Text:	in linux kernel bluetooth L2CAP, l2cap_le_flowctl_init() can cause both div-by-zero and an integer overflow since hdev->le_mtu may not fall in the valid range.	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:	2293932
Bug Blocks:	2292332

Description Pedro Sampaio 2024-06-14 03:49:18 UTC

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

Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()

The Linux kernel CVE team has assigned CVE-2024-36968 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024060804-CVE-2024-36968-6d78@gregkh/T

Comment 14 Keith Grant 2024-06-24 13:05:12 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2293932]

Comment 15 errata-xmlrpc 2025-05-13 08:24:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966