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CVE-2026-23281: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix use-after-free in lbs_free_adapter() The lbs_free_adapter() function uses timer_delete() (non-synchronous) for both command_timer and tx_lockup_timer before the structure is freed. This is incorrect because timer_delete() does not wait for any running timer callback to complete. If a timer callback is executing when lbs_free_adapter() is called, the callback will access freed memory since lbs_cfg_free() frees the containing structure immediately after lbs_free_adapter() returns. Both timer callbacks (lbs_cmd_timeout_handler and lbs_tx_lockup_handler) access priv->driver_lock, priv->cur_cmd, priv->dev, and other fields, which would all be use-after-free violations. Use timer_delete_sync() instead to ensure any running timer callback has completed before returning. This bug was introduced in commit 8f641d93c38a ("libertas: detect TX lockups and reset hardware") where del_timer() was used instead of del_timer_sync() in the cleanup path. The command_timer has had the same issue since the driver was first written.

    Засегнати продукти

    • Linux Linux: 954ee164f4f4598afc172c0ec3865d0352e55a0b преди b15e0fa7adb4de3a03aee9e6fc4d83e5cf0a65e4; 954ee164f4f4598afc172c0ec3865d0352e55a0b преди 09f3c30ab3b1371eaf9676a1b8add57bca763083; 954ee164f4f4598afc172c0ec3865d0352e55a0b преди 3f9dec4a6d95d7f1f5e9e9dfdfa173c053bba8dc; 954ee164f4f4598afc172c0ec3865d0352e55a0b преди 3c5c818c78b03a1725f3dcd566865c77b48dd3a6; 954ee164f4f4598afc172c0ec3865d0352e55a0b преди d0155fe68f31b339961cf2d4f92937d57e9384e6; 954ee164f4f4598afc172c0ec3865d0352e55a0b преди ed7d30f90b77f73a47498686ede83f622b7e4f0d; 954ee164f4f4598afc172c0ec3865d0352e55a0b преди a9f55b14486426d907459bced5825a25063bd922; 954ee164f4f4598afc172c0ec3865d0352e55a0b преди 03cc8f90d0537fcd4985c3319b4fafbf2e3fb1f0
    • Linux Linux: 2.6.24; преди 2.6.24; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.167 до 6.1.*; 6.6.130 до 6.6.*; 6.12.78 до 6.12.*; 6.18.17 до 6.18.*; 6.19.7 до 6.19.*; от 7.0 нататък
    • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии

    История

    • 25 март 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-23281: Linux | freedomonline.bg