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

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-07-25 08:51
VLAI
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
References
Impacted products
Vendor Product Version
Linux Linux Affected: eafedbc7c050c44744fbdf80bdf3315e860b7513 , < 91b27f8172cdbf265240104772fd042a461a7767 (git)
Affected: eafedbc7c050c44744fbdf80bdf3315e860b7513 , < 0644da3621ddd8e146280675a2a31d1e06634a1d (git)
Affected: eafedbc7c050c44744fbdf80bdf3315e860b7513 , < bc4a9828897871ff3e5a1f8a1d346decbf4ee95e (git)
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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)
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          "value": "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."
        }
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    "dateReserved": "2026-07-19T15:36:31.790Z",
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    "state": "PUBLISHED"
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    "redhat_vex": {
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      "cve": "CVE-2026-64466",
      "id": "CVE-2026-64466",
      "initial_release_date": "2026-07-25T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: rust_binder: clear freeze listener on node removal",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64466.json",
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      "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"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


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