CVE-2026-63948
Estado: Pendiente de análisisSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn
__set_chan_timer() takes a l2cap_chan reference via l2cap_chan_hold() before scheduling the delayed work. The normal path in l2cap_chan_timeout() drops this reference with l2cap_chan_put() at the end, but the early return when chan->conn is NULL skips the put, leaking the reference.
Add the missing l2cap_chan_put() before the early return.
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.22%
- Percentil entre todas las CVEs puntuadas: 11
- Fecha de la puntuación: 6/10/2026
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/08d81fe96f80a8e20c7acb573b6a45d901fcf2cd
- https://git.kernel.org/stable/c/107c826e4ef9ec5ad8f60e6fe64d8d5325ba508f
- https://git.kernel.org/stable/c/50f1bcaaaa3a80bb1c3472044bc146e8d49d51ee
- https://git.kernel.org/stable/c/63cd225cc13d782a85e2a73c04d0d350153eada1
- https://git.kernel.org/stable/c/8894c2010435a56ce7c6c2a8785860c13554df2f
- https://git.kernel.org/stable/c/9dbd84990394c51f5cee1e8871bb5ff8af5ed939
- https://git.kernel.org/stable/c/b5c59a5b469e2a809a2d57eda4ded94235971060
- https://git.kernel.org/stable/c/e8a5baff5be273ca07771fd2b9bb1f2a4152917b
JSON original (NVD)
Mostrar
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"published": "2026-07-19T16:17:13.460",
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{
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{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Awaiting Analysis",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn\n\n__set_chan_timer() takes a l2cap_chan reference via l2cap_chan_hold()\nbefore scheduling the delayed work. The normal path in\nl2cap_chan_timeout() drops this reference with l2cap_chan_put() at the\nend, but the early return when chan->conn is NULL skips the put,\nleaking the reference.\n\nAdd the missing l2cap_chan_put() before the early return."
}
],
"lastModified": "2026-07-27T17:44:23.777",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}