CVE-2026-64153

kernel: drm/msm: Fix iommu_map_sgtable() return value check and avoid WARN

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · July 19, 2026

Updated · August 19, 2026

Description

A flaw was found in the drm/msm (Direct Rendering Manager / Qualcomm MSM) driver within the Linux kernel. This vulnerability arises from an incorrect handling of return values in the iommu_map_sgtable() function. Previously, the function would trigger a warning instead of properly returning an error when an IOMMU (Input/Output Memory Management Unit) mapping operation failed. This could lead to system instability or unexpected behavior, potentially resulting in a denial of service.

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 · 7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CWE-253 · Incorrect Check of Function Return Value