drm/vc4: Fix memory leak of BO array in hang state

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Summary

CVECVE-2026-43105
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 10:16:24 UTC
Updated2026-05-11 17:32:11 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/vc4: Fix memory leak of BO array in hang state The hang state's BO array is allocated separately with kzalloc() in vc4_save_hang_state() but never freed in vc4_free_hang_state(). Add the missing kfree() for the BO array before freeing the hang state struct.

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 a812008fe3a0aebb778d277b35717f64e23d0302 git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 0d3c014a84396a147705f523a8fd6fc873e76502 git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 421cea4f71f7cf65abaae878562ee4aa2b684628 git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 b8138567c4a80fd76a647849ebd4284996cf4b17 git Not specified
CNA Linux Linux affected 214613656b5179f0daab6e0a080814b5100d45f0 f4dfd6847b3e5d24e336bca6057485116d17aea4 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/a812008fe3a0aebb778d277b35717f64e23d0302 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b8138567c4a80fd76a647849ebd4284996cf4b17 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/0d3c014a84396a147705f523a8fd6fc873e76502 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f4dfd6847b3e5d24e336bca6057485116d17aea4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/421cea4f71f7cf65abaae878562ee4aa2b684628 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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