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CVE-2026-64092

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.1%
Linux•Linux•Versions : <5.11, <7715c73f33260af724d734c41b794457e9be8dbc, 58943b7ea356294749dae3e75b96c0ee292c00be, 7.0.9, <297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae, <a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0, <77098e4bea37af51d3962efa88a5af2ea5e1ac57, <7.0.11, <6.18.34, 268078acae72daa12b17b2b299701cb9924e469a, 3d3cf6a7314aca4df0a6dde28ce784a2a30d0166, <b285bc0a97f43823a4967fb6d286de4c7f53d541, <0b1bedf114ea93fef929b31f0d70a9eedcc601de, 6.18.32, 8634c1dbd73adb74d40533ebb7e914efb82e71fb, 03660dab86f93319178a24667f6998526dc4355d, 26dfeee8db81354bfdade155f27f9e16510ad196, 5e7d0ac936354c36810e74ac3056b334ed1f4058, <6.6.142, 6.6.140, 6.12.90, <6.12.92, <d078501dde9b57210f1808cdef4b59463d1f5fc8, 79bc0eaeef2c5797317bf2da8e3159a74d62ec47, 5.10.259

Description

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. 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.

Gravité et risque d'exploitation

CVE-2026-64092 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.13 %, ce qui la place devant 2.2 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions <5.11, <7715c73f33260af724d734c41b794457e9be8dbc, 58943b7ea356294749dae3e75b96c0ee292c00be, 7.0.9, <297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae, <a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0, <77098e4bea37af51d3962efa88a5af2ea5e1ac57, <7.0.11, <6.18.34, 268078acae72daa12b17b2b299701cb9924e469a, 3d3cf6a7314aca4df0a6dde28ce784a2a30d0166, <b285bc0a97f43823a4967fb6d286de4c7f53d541, <0b1bedf114ea93fef929b31f0d70a9eedcc601de, 6.18.32, 8634c1dbd73adb74d40533ebb7e914efb82e71fb, 03660dab86f93319178a24667f6998526dc4355d, 26dfeee8db81354bfdade155f27f9e16510ad196, 5e7d0ac936354c36810e74ac3056b334ed1f4058, <6.6.142, 6.6.140, 6.12.90, <6.12.92, <d078501dde9b57210f1808cdef4b59463d1f5fc8, 79bc0eaeef2c5797317bf2da8e3159a74d62ec47, 5.10.259) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

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