Bug 2482079 (CVE-2026-45980)

Summary:	CVE-2026-45980 kernel: accel/amdxdna: Stop job scheduling across aie2_release_resource()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's `accel/amdxdna` driver. A local user could exploit this vulnerability by running jobs on a hardware context while it is in the process of releasing resources. This improper job scheduling can lead to a use-after-free condition, resulting in system crashes 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 2026-05-27 15:10:18 UTC

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

accel/amdxdna: Stop job scheduling across aie2_release_resource()

Running jobs on a hardware context while it is in the process of
releasing resources can lead to use-after-free and crashes.

Fix this by stopping job scheduling before calling
aie2_release_resource() and restarting it after the release completes.
Additionally, aie2_sched_job_run() now checks whether the hardware
context is still active.

Comment 1 Keith Grant 2026-05-27 22:23:22 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052738-CVE-2026-45980-bb40@gregkh/T