Vulnerability-Lookup

CVE-2026-64466 (GCVE-0-2026-64466)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-07-25 08:51

Title

rust_binder: clear freeze listener on node removal

Summary

In the Linux kernel, the following vulnerability has been resolved: rust_binder: clear freeze listener on node removal Generally userspace is supposed to explicitly clear freeze listeners before they drop the refcount on the node ref to zero, but there's nothing forcing that. Currently, in this scenario the freeze listener remains in the freeze_listeners rbtree and in the remote node's freeze listener list, even though the ref for which the listener is registered is gone. This could potentially lead to a memory leak due to a refcount cycle. Thus, remove the freeze listener in this scenario.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/91b27f8172cdbf265…
https://git.kernel.org/stable/c/0644da3621ddd8e14…
https://git.kernel.org/stable/c/bc4a9828897871ff3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: eafedbc7c050c44744fbdf80bdf3315e860b7513 , < 91b27f8172cdbf265240104772fd042a461a7767 (git) Affected: eafedbc7c050c44744fbdf80bdf3315e860b7513 , < 0644da3621ddd8e146280675a2a31d1e06634a1d (git) Affected: eafedbc7c050c44744fbdf80bdf3315e860b7513 , < bc4a9828897871ff3e5a1f8a1d346decbf4ee95e (git)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/android/binder/freeze.rs",
            "drivers/android/binder/node.rs",
            "drivers/android/binder/process.rs"
          ],
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          "versions": [
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            },
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          ],
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          "versions": [
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T08:51:31.887Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "rust_binder: clear freeze listener on node removal",
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    "cveId": "CVE-2026-64466",
    "datePublished": "2026-07-25T08:51:31.887Z",
    "dateReserved": "2026-07-19T15:36:31.790Z",
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    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-07-25T15:58:47Z",
      "cve": "CVE-2026-64466",
      "id": "CVE-2026-64466",
      "initial_release_date": "2026-07-25T15:58:47Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64466",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64466.json",
      "version": "2"
    }
  }
}

GHSA-5QHR-MH6G-F94H

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

rust_binder: clear freeze listener on node removal

Generally userspace is supposed to explicitly clear freeze listeners before they drop the refcount on the node ref to zero, but there's nothing forcing that. Currently, in this scenario the freeze listener remains in the freeze_listeners rbtree and in the remote node's freeze listener list, even though the ref for which the listener is registered is gone. This could potentially lead to a memory leak due to a refcount cycle. Thus, remove the freeze listener in this scenario.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-64466"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:31Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrust_binder: clear freeze listener on node removal\n\nGenerally userspace is supposed to explicitly clear freeze listeners\nbefore they drop the refcount on the node ref to zero, but there\u0027s\nnothing forcing that. Currently, in this scenario the freeze listener\nremains in the freeze_listeners rbtree and in the remote node\u0027s freeze\nlistener list, even though the ref for which the listener is registered\nis gone. This could potentially lead to a memory leak due to a refcount\ncycle. Thus, remove the freeze listener in this scenario.",
  "id": "GHSA-5qhr-mh6g-f94h",
  "modified": "2026-07-25T12:31:36Z",
  "published": "2026-07-25T12:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64466"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0644da3621ddd8e146280675a2a31d1e06634a1d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91b27f8172cdbf265240104772fd042a461a7767"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc4a9828897871ff3e5a1f8a1d346decbf4ee95e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-64466 (GCVE-0-2026-64466)

GHSA-5QHR-MH6G-F94H

Tags

Sightings

Nomenclature