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CVE-2026-46233: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: only purge non-released claims When batadv_bla_purge_claims() goes through the list of claims, it is only traversing the hash list with an rcu_read_lock(). Due to a potential parallel batadv_claim_put(), it can happen that it encounters a claim which was actually in the process of being released+freed by batadv_claim_release(). In this case, backbone_gw is set to NULL before the delayed RCU kfree is started. Calling batadv_bla_claim_get_backbone_gw() is then no longer allowed because it would cause a NULL-ptr derefence. To avoid this, only claims with a valid reference counter must be purged. All others are already taken care of.

    Засегнати продукти

    • Linux Linux: 23721387c409087fd3b97e274f34d3ddc0970b74 преди a9f58d5e3261f3deeae69ec1e237f38ef3ff5cbe; 23721387c409087fd3b97e274f34d3ddc0970b74 преди 6725c523a35eeca611ff37e7d4a8712fae92aefd; 23721387c409087fd3b97e274f34d3ddc0970b74 преди afb5436f6028fd68f408f189230fbaa19c910d72; 23721387c409087fd3b97e274f34d3ddc0970b74 преди 7b8fbcee3184d848b5aee085ca16d0cf05c9b641; 23721387c409087fd3b97e274f34d3ddc0970b74 преди 7b7ebb7222a5524ce58e48cc9c6d688320ea6cfe; 23721387c409087fd3b97e274f34d3ddc0970b74 преди b65365d2b1e6095c538d49baeb140dd1c166c1b3; 23721387c409087fd3b97e274f34d3ddc0970b74 преди ab3dbd07a809a8eb30c7ddfab9ac886ed30dce8d; 23721387c409087fd3b97e274f34d3ddc0970b74 преди cf6b604011591865ae39ac82de8978c1120d17af
    • Linux Linux: 3.5; преди 3.5; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.140 до 6.6.*; 6.12.90 до 6.12.*; 6.18.32 до 6.18.*; 7.0.9 до 7.0.*; от 7.1 нататък

    История

    • 28 май 2026 Публикувано

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