CVE-2026-64092
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: tp_meter: fix tp_vars reference leak in receiver shutdown
The receiver shutdown timer handler, batadv_tp_receiver_shutdown(), is responsible for releasing the tp_vars reference it holds. However, the existing logic for coordinating this release with batadv_tp_stop_all() was flawed.
timer_shutdown_sync() guarantees the timer will not fire again after it returns, but it returns non-zero only when the timer was pending at the time of the call. If the timer had already expired (and batadv_tp_stop_all() would unsucessfully try to rearm itself), batadv_tp_stop_all() skips its batadv_tp_vars_put(), and batadv_tp_receiver_shutdown() fails to put its own reference as well.
Leer descripción completaMostrar menos
Fix this by introducing a new atomic variable receiving that is set to 1 when the receiver is initialized and cleared atomically with atomic_xchg() by whichever side claims it first. Only the side that observes the transition from 1 to 0 is responsible for releasing the tp_vars timer reference, eliminating the uncertainty.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 5
- 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)
CWE
- NVD-CWE-Other
Referencias
- https://git.kernel.org/stable/c/0b1bedf114ea93fef929b31f0d70a9eedcc601de
- https://git.kernel.org/stable/c/297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae
- https://git.kernel.org/stable/c/77098e4bea37af51d3962efa88a5af2ea5e1ac57
- https://git.kernel.org/stable/c/7715c73f33260af724d734c41b794457e9be8dbc
- https://git.kernel.org/stable/c/a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0
- https://git.kernel.org/stable/c/b285bc0a97f43823a4967fb6d286de4c7f53d541
- https://git.kernel.org/stable/c/d078501dde9b57210f1808cdef4b59463d1f5fc8
JSON original (NVD)
Mostrar
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