Bug 2301527 (CVE-2024-42156)

Summary:	CVE-2024-42156 kernel: s390/pkey: Wipe copies of clear-key structures on failure
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.9.9, kernel 6.10	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's s390 crypto driver where upon some operation failure involving clear-keys, the sensitive key information stored in memory is not consistently/properly wiped. This could lead to sensitive information potentially being disclosed by accessing the corresponding memory.	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:	2302024
Bug Blocks:

Description OSIDB Bzimport 2024-07-30 08:50:16 UTC

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

s390/pkey: Wipe copies of clear-key structures on failure

Wipe all sensitive data from stack for all IOCTLs, which convert a
clear-key into a protected- or secure-key.

Comment 1 Mauro Matteo Cascella 2024-07-31 11:19:07 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024073035-CVE-2024-42156-1f82@gregkh/T

Comment 2 Mauro Matteo Cascella 2024-07-31 11:19:26 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2302024]