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CVE-2026-23299

Estado: AnalizadaMedia (5.5)—

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

Bluetooth: purge error queues in socket destructors

When TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued into sk_error_queue and will stay there until consumed. If userspace never gets to read the timestamps, or if the controller is removed unexpectedly, these SKBs will leak.

Fix by adding skb_queue_purge() calls for sk_error_queue in affected bluetooth destructors. RFCOMM does not currently use sk_error_queue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-23299",
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        "source": "nvd@nist.gov",
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          "version": "3.1",
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          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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            "net/bluetooth/iso.c",
            "net/bluetooth/l2cap_sock.c",
            "net/bluetooth/sco.c"
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          "programFiles": [
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            "net/bluetooth/l2cap_sock.c",
            "net/bluetooth/sco.c"
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  "published": "2026-03-25T11:16:25.487",
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      "description": [
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          "lang": "en",
          "value": "CWE-772"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: purge error queues in socket destructors\n\nWhen TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued\ninto sk_error_queue and will stay there until consumed. If userspace never\ngets to read the timestamps, or if the controller is removed unexpectedly,\nthese SKBs will leak.\n\nFix by adding skb_queue_purge() calls for sk_error_queue in affected\nbluetooth destructors. RFCOMM does not currently use sk_error_queue."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nBluetooth: purgar colas de error en destructores de sockets\n\nCuando la marca de tiempo TX está habilitada a través de SO_TIMESTAMPING, los SKB pueden ser encolados en sk_error_queue y permanecerán allí hasta ser consumidos. Si el espacio de usuario nunca llega a leer las marcas de tiempo, o si el controlador es eliminado inesperadamente, estos SKB se filtrarán.\n\nSolución añadiendo llamadas a skb_queue_purge() para sk_error_queue en los destructores de bluetooth afectados. RFCOMM no utiliza actualmente sk_error_queue."
    }
  ],
  "lastModified": "2026-06-17T10:21:17.050",
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