drm/panthor: Fix UAF race between device unplug and FW event processing

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Summary

CVECVE-2025-68748
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-24 13:16:29 UTC
Updated2026-10-13 10:10:00 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix UAF race between device unplug and FW event processing The function panthor_fw_unplug() will free the FW memory sections. The problem is that there could still be pending FW events which are yet not handled at this point. process_fw_events_work() can in this case try to access said freed memory. Simply call disable_work_sync() to both drain and prevent future invocation of process_fw_events_work().

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.001240000 probability, percentile 0.025710000 (date 2026-08-01)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected de85488138247d034eb3241840424a54d660926b 31db188355a49337e3e8ec98b99377e482eab22c git Not specified
CNA Linux Linux affected de85488138247d034eb3241840424a54d660926b 5e3ff56d4cb591daea70786d07dc21d06dc34108 git Not specified
CNA Linux Linux affected de85488138247d034eb3241840424a54d660926b 6c1da9ae2c123a9ffda5375e64cc81f9ed3cc04a git Not specified
CNA Linux Linux affected de85488138247d034eb3241840424a54d660926b 7051f6ba968fa69918d72cc26de4d6cf7ea05b90 git Not specified
CNA Linux Linux affected 6.10 Not specified
CNA Linux Linux unaffected 6.10 semver Not specified
CNA Linux Linux unaffected 6.12.63 6.12.* semver Not specified
CNA Linux Linux unaffected 6.17.13 6.17.* semver Not specified
CNA Linux Linux unaffected 6.18.2 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/31db188355a49337e3e8ec98b99377e482eab22c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5e3ff56d4cb591daea70786d07dc21d06dc34108 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6c1da9ae2c123a9ffda5375e64cc81f9ed3cc04a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7051f6ba968fa69918d72cc26de4d6cf7ea05b90 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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