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CVE-2024-26709

kernel: powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach

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Severity

Moderate

Red Hat Product Security

6

CVSS 3.1

Review impact separately from score.

Published · April 3, 2024

Updated · November 21, 2025

Description

A vulnerability was found in the spapr_tce_platform_iommu_attach_dev() function in the Linux kernel, where a missing call to the iommu_group_put() function can lead to a reference count leak for IOMMU groups during DLPAR operations. This vulnerability could lead to kernel panics and instability.

Statement

Red Hat Enterprise Linux 8 and 9 are not affected by this vulnerability.

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

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

CWE-402 · Transmission of Private Resources into a New Sphere ('Resource Leak')