Bug 2425001 (CVE-2022-50710)

Summary:	CVE-2022-50710 kernel: Linux kernel: Denial of Service in ice driver via uninitialized transmit rings
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	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's ice network driver. A local user, by changing the number of transmit queues using the ethtool utility, can trigger an issue where newly allocated transmit rings are not properly initialized. This can lead to a null pointer dereference, causing a system crash and a Denial of Service (DoS).	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 2025-12-24 12:07:17 UTC

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

ice: set tx_tstamps when creating new Tx rings via ethtool

When the user changes the number of queues via ethtool, the driver
allocates new rings. This allocation did not initialize tx_tstamps. This
results in the tx_tstamps field being zero (due to kcalloc allocation), and
would result in a NULL pointer dereference when attempting a transmit
timestamp on the new ring.

Comment 1 Alexander B 2025-12-25 09:41:18 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122421-CVE-2022-50710-3f0d@gregkh/T