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CVE-2026-53252: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hci_alloc_dev() Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory. When device initialization fails before hci_register_dev() completes, the HCI_UNREGISTER flag is never set. As a result, when the device reference count reaches zero, bt_host_release() evaluates this flag as false and falls back to a direct kfree(hdev). Because hci_release_dev() is bypassed, the SRCU struct initialized early in hci_alloc_dev() is never cleaned up, resulting in a leak of percpu memory. Fix the leak by explicitly calling cleanup_srcu_struct() in the fallback (unregistered) branch of bt_host_release() before freeing the device.

    Засегнати продукти

    • Linux Linux: 90dee0a0ff84fac8accd5be98412b3819f667149 преди 5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd; c56b177efce8b62798e4d96bdb9867106cb7c4a0 преди c016118b9e51eeaf5bc93850d4c455a3b583c0aa; bc0819a25e04cd68ef3568cfa51b63118fea39a7 преди 0622e527a31d4b44737fed5c1a2ac1fc2cfb5184; ce23b73f0f27e2dbeb81734a79db710f05aa33c6 преди bc2efe73c194a74839d7cf57b63880d97e21d309; 1d6123102e9fbedc8d25bf4731da6d513173e49e преди ce4b4cac3c5749b6aa75e62e2991ae2263f2f889; 1d6123102e9fbedc8d25bf4731da6d513173e49e преди f82799407a50af7bcacacf09cc9b279af8fe9b81; 1d6123102e9fbedc8d25bf4731da6d513173e49e преди 37b3009bf5976e8ab77c8b9a9bc3bbd7ff49e37f; dd4becd3fd4102696e1c15e6d260a1712a2d8685; 0e5c144c557df910ab64d9c25d06399a9a735e65; 5.15.209 преди 5.15.210; 6.1.167 преди 6.1.176; 6.6.97 преди 6.6.143; 6.12.36 преди 6.12.94; 5.10.259 преди 5.11; 6.15.5 преди 6.16
    • Linux Linux: 6.16; преди 6.16; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.143 до 6.6.*; 6.12.94 до 6.12.*; 6.18.36 до 6.18.*; 7.0.13 до 7.0.*; от 7.1 нататък

    История

    • 25 юни 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-53252: Linux | freedomonline.bg