Bug 2300715 (CVE-2024-42097)

Summary:	CVE-2024-42097 kernel: ALSA: emux: improve patch ioctl data validation
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 4.19.317, kernel 5.4.279, kernel 5.10.221, kernel 5.15.162, kernel 6.1.97, kernel 6.6.37, kernel 6.9.8, kernel 6.10	Doc Type:	If docs needed, set a value
Doc Text:	A missed validation flaw was found in the Linux Kernel's MIDI sequencer and router support functionality. This issue could allow a local user to crash the system.	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:	2301754
Bug Blocks:

Description OSIDB Bzimport 2024-07-29 18:21:44 UTC

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

ALSA: emux: improve patch ioctl data validation

In load_data(), make the validation of and skipping over the main info
block match that in load_guspatch().

In load_guspatch(), add checking that the specified patch length matches
the actually supplied data, like load_data() already did.

Comment 1 Mauro Matteo Cascella 2024-07-30 17:53:38 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024072911-CVE-2024-42097-5a6a@gregkh/T

Comment 2 Mauro Matteo Cascella 2024-07-30 17:57:19 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2301754]