Bug 2347935 (CVE-2022-49178)

Summary:	CVE-2022-49178 kernel: memstick/mspro_block: fix handling of read-only devices
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
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 flaw exists in the Linux kernel's memstick/mspro_block driver, which handles Memory Stick Pro devices. The issue arises from improper management of read-only devices. Specifically, the driver fails to correctly propagate the read-only state to the block layer, leading to a reference leak when such devices are accessed.	Story Points:	---
Clone Of:		Environment:
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-02-26 03:11:52 UTC

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

memstick/mspro_block: fix handling of read-only devices

Use set_disk_ro to propagate the read-only state to the block layer
instead of checking for it in ->open and leaking a reference in case
of a read-only device.

Comment 3 Avinash Hanwate 2025-02-27 23:37:23 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022614-CVE-2022-49178-b663@gregkh/T