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CVE-2026-68318

kernel: pds_core: fix use-after-free on workqueue during remove

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 10, 2026

Updated · October 30, 2026

Description

A flaw was found in the pds_core component of the Linux kernel. This use-after-free vulnerability occurs because the workqueue is destroyed prematurely during the pdsc_remove() operation, before pdsc_teardown() completes. This timing issue allows for work to be queued on an already destroyed workqueue, which can lead to system instability or potentially other impacts. The flaw can be triggered by specific error paths or NotifyQ events during device removal.

Statement

This issue affects AMD Pensando (pds_core) devices. Workqueue is destroyed before teardown completes, allowing UAF from queued work. Systems without pds_core hardware are not affected.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

To mitigate this issue, prevent the pds_core module from loading. See https://access.redhat.com/solutions/41278 for instructions.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference