drm/mediatek: fix potential OF node use-after-free

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-39882
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-23 06:15:47 UTC
Updated2026-07-30 06:23:53 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/mediatek: fix potential OF node use-after-free The for_each_child_of_node() helper drops the reference it takes to each node as it iterates over children and an explicit of_node_put() is only needed when exiting the loop early. Drop the recently introduced bogus additional reference count decrement at each iteration that could potentially lead to a use-after-free.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: CWE-416 | CWE-416 CWE-416 Use After Free

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7d98166183d627c0b9daca7672b2191fae0f8a03 b2fbe0f9f80b9cfa1e06ddcf8b863d918394ef1d git Not specified
CNA Linux Linux affected 31ce7c089b50c3d3056c37e0e25e7535e4428ae1 b58a26cdd4795c1ce6a80e38e9348885555dacd6 git Not specified
CNA Linux Linux affected fae58d0155a979a8c414bbc12db09dd4b2f910d0 c4901802ed1ce859242e10af06e6a7752cba0497 git Not specified
CNA Linux Linux affected 1f403699c40f0806a707a9a6eed3b8904224021a 4de37a48b6b58faaded9eb765047cf0d8785ea18 git Not specified
CNA Linux Linux affected 6.6.105 6.6.107 semver Not specified
CNA Linux Linux affected 6.12.45 6.12.48 semver Not specified
CNA Linux Linux affected 6.16.5 6.16.8 semver Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b2fbe0f9f80b9cfa1e06ddcf8b863d918394ef1d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4de37a48b6b58faaded9eb765047cf0d8785ea18 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b58a26cdd4795c1ce6a80e38e9348885555dacd6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c4901802ed1ce859242e10af06e6a7752cba0497 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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