drm/vc4: Fix a memory leak in hang state error path

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Summary

CVECVE-2026-43104
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 10:16:23 UTC
Updated2026-05-11 17:32:55 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/vc4: Fix a memory leak in hang state error path When vc4_save_hang_state() encounters an early return condition, it returns without freeing the previously allocated `kernel_state`, leaking memory. Add the missing kfree() calls by consolidating the early return paths into a single place.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: CWE-401

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 214613656b5179f0daab6e0a080814b5100d45f0 dd5c49787a32da96a2b154427eb17cbf12a83c28 git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 d8fdd6adc07b78ad3e9ee0004876d90cb59ca941 git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 e352e9adc9f6df54d63150ff832f71c04e30744b git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 3eb7dd55021d0f4308fbea0bea21d2118984d8e7 git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 9525d169e5fd481538cf8c663cc5839e54f2e481 git Not specified
CNA Linux Linux affected 4.5 Not specified
CNA Linux Linux unaffected 4.5 semver Not specified
CNA Linux Linux unaffected 6.6.136 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.83 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.24 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.14 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9525d169e5fd481538cf8c663cc5839e54f2e481 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d8fdd6adc07b78ad3e9ee0004876d90cb59ca941 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3eb7dd55021d0f4308fbea0bea21d2118984d8e7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/dd5c49787a32da96a2b154427eb17cbf12a83c28 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e352e9adc9f6df54d63150ff832f71c04e30744b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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