CVE-2026-43382
Vulnérabilité non évaluée dans Linux (Linux)
Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid double-rtnl_lock ELP metric worker batadv_v_elp_get_throughput() might be called when the RTNL lock is already held. This could be problematic when the work queue item is cancelled via cancel_delayed_work_sync() in batadv_v_elp_iface_disable(). In this case, an rtnl_lock() would cause a deadlock. To avoid this, rtnl_trylock() was used in this function to skip the retrieval of the ethtool information in case the RTNL lock was already held. But for cfg80211 interfaces, batadv_get_real_netdev() was called - which also uses rtnl_lock(). The approach for __ethtool_get_link_ksettings() must also be used instead and the lockless version __batadv_get_real_netdev() has to be called.
Gravité et risque d'exploitation
CVE-2026-43382 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 2.0 % des CVE référencées.
Que faire ?
- Vérifiez si Linux (versions <=6.1.*, a0019971f340ae02ba54cf1861f72da7e03e6b66, <=6.12.*, <fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca, 6.12.78, <cfc83a3c71517b59c1047db57da31e26a9dc2f33, 3c0e0aecb78cb2a2ca1dc701982d08fedb088dc6, 0, 7.0, <5.15.203, <6.12.78, 1c334629176c2d644befc31a20d4bf75542f7631, <4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b, <5.10.253, <6.6.130, 6.14, 6.6.79, <=5.10.*, af264c2a9adc37f4bdf88ca7f3affa15d8c7de9e, <=6.6.*, 6.18.19, <=6.19.*, 6.1.129, 6.12.16, 5.15.203, <77808fe7d03ad0062840b95f431869a8b3d88b24, 6.19.9, <5.5, 5.4.291, <=6.18.*, <6.1.167, 6.1.167, 6.13.4, 5.15.179, <192f40ad8a7dac58dae9199a065dbf7e6e67b75b, <b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77, <=*, 5.10.253, <=5.15.*, 0fdc3c166ac17b26014313fa2b93696354511b24, <6.14, <f3ca45673dab0514a887231de6f3243a699d5bfd, a7aa2317285806640c844acd4cd2cd768e395264, 5.10.235, <2ab9f2531d37775cd79228c1f5d80e6bd08d11d3, 6.6.130, 8c8ecc98f5c65947b0070a24bac11e12e47cc65d, 781a06fd265a8151f7601122d9c2e985663828ff) 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
- https://git.kernel.org/stable/c/4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b
- https://git.kernel.org/stable/c/192f40ad8a7dac58dae9199a065dbf7e6e67b75b
- https://git.kernel.org/stable/c/fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca
- https://git.kernel.org/stable/c/f3ca45673dab0514a887231de6f3243a699d5bfd
- https://git.kernel.org/stable/c/b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77
- https://git.kernel.org/stable/c/2ab9f2531d37775cd79228c1f5d80e6bd08d11d3
- https://git.kernel.org/stable/c/77808fe7d03ad0062840b95f431869a8b3d88b24
- https://git.kernel.org/stable/c/cfc83a3c71517b59c1047db57da31e26a9dc2f33
