CVE-2026-64466 (GCVE-0-2026-64466)
Vulnerability from cvelistv5
Published
2026-07-25 08:51
Modified
2026-08-17 04:56
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: eafedbc7c050c44744fbdf80bdf3315e860b7513
Version: eafedbc7c050c44744fbdf80bdf3315e860b7513
Version: eafedbc7c050c44744fbdf80bdf3315e860b7513
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/android/binder/freeze.rs",
            "drivers/android/binder/node.rs",
            "drivers/android/binder/process.rs"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "91b27f8172cdbf265240104772fd042a461a7767",
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              "versionType": "git"
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          "product": "Linux",
          "programFiles": [
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            "drivers/android/binder/node.rs",
            "drivers/android/binder/process.rs"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.18"
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              "lessThanOrEqual": "6.18.*",
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              "version": "6.18.39",
              "versionType": "semver"
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              "version": "7.1.4",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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                  "vulnerable": true
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                  "versionEndExcluding": "7.2",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T04:56:11.640Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/91b27f8172cdbf265240104772fd042a461a7767"
        },
        {
          "url": "https://git.kernel.org/stable/c/0644da3621ddd8e146280675a2a31d1e06634a1d"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc4a9828897871ff3e5a1f8a1d346decbf4ee95e"
        }
      ],
      "title": "rust_binder: clear freeze listener on node removal",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64466",
    "datePublished": "2026-07-25T08:51:31.887Z",
    "dateReserved": "2026-07-19T15:36:31.790Z",
    "dateUpdated": "2026-08-17T04:56:11.640Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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