Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: rust_binder: clear freeze listener on node removal Generally userspace is… (CVE-2026-64466)
A vulnerability in the Linux kernel's rust_binder component was resolved by ensuring that freeze listeners are cleared when a node is removed. Previously, freeze listeners could remain registered even after the associated reference was dropped to zero, potentially causing a memory leak due to a reference count cycle. This issue has been addressed by removing the freeze listener in such scenarios.
AI Analysis
Technical Summary
The vulnerability in the Linux kernel rust_binder subsystem involved the failure to clear freeze listeners upon node removal. Userspace is expected to clear freeze listeners before dropping the node reference count to zero, but this was not enforced, allowing freeze listeners to persist in internal data structures despite the node reference being gone. This could lead to a memory leak caused by a reference count cycle. The fix removes the freeze listener when the node is removed to prevent this condition.
Potential Impact
The vulnerability could cause a memory leak in the Linux kernel due to lingering freeze listeners after node removal. This may degrade system stability or performance over time but does not directly indicate privilege escalation or remote code execution.
Mitigation Recommendations
No explicit patch or remediation details are provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: rust_binder: clear freeze listener on node removal Generally userspace is… (CVE-2026-64466)
Description
A vulnerability in the Linux kernel's rust_binder component was resolved by ensuring that freeze listeners are cleared when a node is removed. Previously, freeze listeners could remain registered even after the associated reference was dropped to zero, potentially causing a memory leak due to a reference count cycle. This issue has been addressed by removing the freeze listener in such scenarios.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in the Linux kernel rust_binder subsystem involved the failure to clear freeze listeners upon node removal. Userspace is expected to clear freeze listeners before dropping the node reference count to zero, but this was not enforced, allowing freeze listeners to persist in internal data structures despite the node reference being gone. This could lead to a memory leak caused by a reference count cycle. The fix removes the freeze listener when the node is removed to prevent this condition.
Potential Impact
The vulnerability could cause a memory leak in the Linux kernel due to lingering freeze listeners after node removal. This may degrade system stability or performance over time but does not directly indicate privilege escalation or remote code execution.
Mitigation Recommendations
No explicit patch or remediation details are provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-5qhr-mh6g-f94h
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64466"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a6542089c2644c7f8082fe3
Added to database: 07/25/2026, 23:08:56 UTC
Last enriched: 08/15/2026, 02:27:46 UTC
Last updated: 09/07/2026, 10:52:10 UTC
Views: 44
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