Bug 2278431 (CVE-2024-27048)

Summary:	CVE-2024-27048 kernel: wifi: brcm80211: handle pmk_op allocation failure
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, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mschmidt, 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 6.6.23, kernel 6.7.11, kernel 6.8.2, kernel 6.9-rc1	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's Wi-Fi cfg80211.c driver, where a lack of proper checks can result in a NULL pointer dereference. This issue occurs when the brcmf_pmksa_v3_op() function attempts to call malloc (), but the physical memory has run out. In this situation, kzalloc() will return NULL, which the function does not check before using it in the corresponding value pmk_op., possibly leading to system instability.	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:	2278432
Bug Blocks:	2278552

Description Zack Miele 2024-05-01 20:31:22 UTC

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

wifi: brcm80211: handle pmk_op allocation failure

The Linux kernel CVE team has assigned CVE-2024-27048 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050114-CVE-2024-27048-016f@gregkh/T

Comment 1 Zack Miele 2024-05-01 20:31:50 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2278432]

Comment 5 Michal Schmidt 2024-05-14 09:00:10 UTC

It's a small (32 bytes) GFP_KERNEL memory allocation. It just won't fail in practice.
I suggest impact Low.

Comment 6 errata-xmlrpc 2024-06-05 00:32:45 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3618 https://access.redhat.com/errata/RHSA-2024:3618

Comment 7 errata-xmlrpc 2024-06-05 10:03:30 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3627 https://access.redhat.com/errata/RHSA-2024:3627

Comment 8 errata-xmlrpc 2024-11-12 09:25:47 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 9 errata-xmlrpc 2025-04-16 03:11:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:3935 https://access.redhat.com/errata/RHSA-2025:3935