CVE-2026-46098 (GCVE-0-2026-46098)
Vulnerability from cvelistv5
Published
2026-05-27 12:59
Modified
2026-06-14 17:54
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: caif: clear client service pointer on teardown `caif_connect()` can tear down an existing client after remote shutdown by calling `caif_disconnect_client()` followed by `caif_free_client()`. `caif_free_client()` releases the service layer referenced by `adap_layer->dn`, but leaves that pointer stale. When the socket is later destroyed, `caif_sock_destructor()` calls `caif_free_client()` again and dereferences the freed service pointer. Clear the client/service links before releasing the service object so repeated teardown becomes harmless.
Impacted products
Vendor Product Version
Linux Linux Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
Version: 43e3692101086add8719c3b8b50b05c9ac5b14e1
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{
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              "version": "0",
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: caif: clear client service pointer on teardown\n\n`caif_connect()` can tear down an existing client after remote shutdown by\ncalling `caif_disconnect_client()` followed by `caif_free_client()`.\n`caif_free_client()` releases the service layer referenced by\n`adap_layer-\u003edn`, but leaves that pointer stale.\n\nWhen the socket is later destroyed, `caif_sock_destructor()` calls\n`caif_free_client()` again and dereferences the freed service pointer.\n\nClear the client/service links before releasing the service object so\nrepeated teardown becomes harmless."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:54:16.006Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cffca7a18b8f9de7c3d3013a1f5740c412b2a501"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ef97d4675b05a103648bd9244d91dff7d8c08b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/e16859f3f4426fa349bc5519d582a93d28f5a15d"
        },
        {
          "url": "https://git.kernel.org/stable/c/914c6456fcfc21a3d553945dff62fd1621d6155d"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ac6db584d9d420267bb8413115707eeec76d9cf"
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          "url": "https://git.kernel.org/stable/c/63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9"
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          "url": "https://git.kernel.org/stable/c/a4b191ddc12c55ddb62feb096536f819f384d6f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8"
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      ],
      "title": "net: caif: clear client service pointer on teardown",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46098",
    "datePublished": "2026-05-27T12:59:02.308Z",
    "dateReserved": "2026-05-13T15:03:33.097Z",
    "dateUpdated": "2026-06-14T17:54:16.006Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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