Bug 2298134 (CVE-2022-48798)

Summary:	CVE-2022-48798 kernel: s390/cio: verify the driver availability for path_event call
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:	kernel 5.15.24, kernel 5.16.10, kernel 5.17	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's S390 driver, where the path_event function can lead to a kernel panic if no driver is attached to a device or if the driver does not implement the function. This occurs when an FCES path-event is triggered without verifying the driver's availability first. The impact of this vulnerability can result in unexpected system crashes, affecting overall system stability.	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:

Description OSIDB Bzimport 2024-07-16 12:27:43 UTC

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

s390/cio: verify the driver availability for path_event call

If no driver is attached to a device or the driver does not provide the
path_event function, an FCES path-event on this device could end up in a
kernel-panic. Verify the driver availability before the path_event
function call.