Bug 2025003 (CVE-2021-43976)

Summary:	CVE-2021-43976 kernel: mwifiex_usb_recv() in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker to cause DoS via crafted USB device
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bdettelb, bhu, brdeoliv, bskeggs, chwhite, crwood, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jforbes, jglisse, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, nmurray, ptalbert, qzhao, rkeshri, rvrbovsk, steved, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A denial of service flaw was found in mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c in the usb subsystem of the Linux kernel. This is due to a missing clean-up for a malfunctioning usb device with an unknown recv_type.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-05-11 12:16:28 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:	2025004, 2025323, 2025324, 2025325, 2027747
Bug Blocks:	2025007

Description Guilherme de Almeida Suckevicz 2021-11-19 16:53:24 UTC

A denial-of-service flaw was found in mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c in the usb subsystem, due to a missing clean-up for a malfunctioning usb device with an unknown recv_type. 

Reference and upstream patch:
https://patchwork.kernel.org/project/linux-wireless/patch/YX4CqjfRcTa6bVL+@Zekuns-MBP-16.fios-router.home/

Comment 1 Guilherme de Almeida Suckevicz 2021-11-19 16:54:04 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2025004]

Comment 8 errata-xmlrpc 2022-05-10 14:40:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1975 https://access.redhat.com/errata/RHSA-2022:1975

Comment 9 errata-xmlrpc 2022-05-10 14:46:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1988 https://access.redhat.com/errata/RHSA-2022:1988

Comment 10 Product Security DevOps Team 2022-05-11 12:16:24 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-43976