pmdomain: mediatek: fix remaining %pOF after of_node_put()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80750
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-03 13:06:14 UTC
Updated2026-09-04 05:17:14 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix remaining %pOF after of_node_put() scpsys_get_bus_protection_legacy() looks up several legacy bus protection regmaps from device-tree nodes. Two error paths put the device node before checking whether the regmap lookup failed, but still pass that node to dev_err_probe() with %pOF on failure. If of_node_put() drops the last reference, the later %pOF formatting can dereference a freed device node. Keep the node reference until after the error message has been emitted in the infracfg and SMI lookup paths. Also drop the SMI node before returning when the SMI phandle is missing.

Risk And Classification

Primary CVSS: v3.1 8.4 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.001800000 probability, percentile 0.077070000 (date 2026-09-06)

VersionSourceTypeScoreSeverityVector
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
3.1CNADECLARED8.4HIGHCVSS: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
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c29345fa5f66bea0790cf2219f57b974d4fc177b 970b9c83a07c405fdd32bcce7cc4c9e670e58875 git Not specified
CNA Linux Linux affected c29345fa5f66bea0790cf2219f57b974d4fc177b 10bf2d7261d7f724ed43a09eea4c90c19c0230a0 git Not specified
CNA Linux Linux affected c29345fa5f66bea0790cf2219f57b974d4fc177b 3e013bc8b941bd52c8e3a99798d0ae8792cb71ca git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.46 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.10 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/970b9c83a07c405fdd32bcce7cc4c9e670e58875 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3e013bc8b941bd52c8e3a99798d0ae8792cb71ca 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/10bf2d7261d7f724ed43a09eea4c90c19c0230a0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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