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CVE-2026-98108: Linux

7.5

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се от съседна мрежа, при специфични условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix chan mode for LE_CONN_REQ + EXT_FLOWCTL pchan l2cap_new_connection() sets default value of channel mode to match the parent channel. l2cap_le_connect_req() left this at the default, and created L2CAP_MODE_EXT_FLOWCTL channels if listening pchan has that mode. This causes FLAG_DEFER_SETUP channels to reply to L2CAP_LE_CONN_REQ with L2CAP_ECRED_CONN_RSP, which is incorrect. It can also result to stack OOB write (of l2cap_alloc_cid determined values) in l2cap_ecred_rsp_defer(), as l2cap_le_connect_req() does not limit maximum number of deferred channels or check for duplicate ident. Fix by setting chan->mode correctly in l2cap_le_connect_req(). Also check channel mode in l2cap_ecred_rsp_defer(), and do WARN_ON_ONCE instead of OOB write to make it less brittle.

    Засегнати продукти

    • Linux Linux: 15f02b91056253e8cdc592888f431da0731337b8 преди ad0f44a3f1f688558ed876a0702bc2c82b0df689; 15f02b91056253e8cdc592888f431da0731337b8 преди 564ae0e05e598aa895b9dbd18cb7d6eb64752869; 15f02b91056253e8cdc592888f431da0731337b8 преди aab17938998b29e75c3324763411aef3e300fc67; 15f02b91056253e8cdc592888f431da0731337b8 преди 0e1fc7cab95ad958e55d70a5dfaaea687c9c639f; 15f02b91056253e8cdc592888f431da0731337b8 преди 1074bcc57f741223f9fa82ce6afe5c3d783e4d10; 15f02b91056253e8cdc592888f431da0731337b8 преди 5d5a625cbc854d4c4f68e4b16fcf6e682d9a9ed1; 15f02b91056253e8cdc592888f431da0731337b8 преди 6cb79e6499228cfdbd4b3301371ce74d01cd2f80; 15f02b91056253e8cdc592888f431da0731337b8 преди 4ef05db5b08b176a551b4a6287372045998806b0
    • Linux Linux: 5.7; преди 5.7; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

    История

    • 25 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98108: Linux | freedomonline.bg