gpib: lpvo_usb: fix memory leak on disconnect

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Summary

CVECVE-2026-31760
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:39 UTC
Updated2026-05-08 18:11:51 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: gpib: lpvo_usb: fix memory leak on disconnect The driver iterates over the registered USB interfaces during GPIB attach and takes a reference to their USB devices until a match is found. These references are never released which leads to a memory leak when devices are disconnected. Fix the leak by dropping the unnecessary references.

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

EPSS: 0.000170000 probability, percentile 0.040610000 (date 2026-05-05)

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 fce79512a96afacbe297ba3c5c2f7ed34944540d 21f942879f86108b300a23683e67483f8c358fc7 git Not specified
CNA Linux Linux affected fce79512a96afacbe297ba3c5c2f7ed34944540d 706f4fe2dacc95d65e7c8dff321711f024bb8d20 git Not specified
CNA Linux Linux affected fce79512a96afacbe297ba3c5c2f7ed34944540d 5cefb52c1af6f69ea719e42788f6ec6a087eb74c git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/706f4fe2dacc95d65e7c8dff321711f024bb8d20 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5cefb52c1af6f69ea719e42788f6ec6a087eb74c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/21f942879f86108b300a23683e67483f8c358fc7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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