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CVE-2026-68389: Linux

8.8

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, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_qca: Clear memdump state on invalid dump size qca_controller_memdump() allocates qca->qca_memdump before processing the first dump packet. For a sequence-zero packet it then disables IBS, marks memdump collection active, and reads the advertised dump size. If the controller reports a zero dump size, the error path frees the local qca_memdump object and returns without clearing qca->qca_memdump or undoing the collection state. A later memdump work item initializes its local pointer from qca->qca_memdump and skips allocation when that pointer is non-NULL, so it can operate on freed memory. The stale collection and IBS-disabled flags can also leave waiters or later transmit handling blocked behind an aborted dump. Clear the saved pointer and memdump state before returning from the invalid-size path, matching the cleanup used when hci_devcd_init() fails. A static analysis checker reported the stale memdump state, and manual source review confirmed the invalid-size failure path.

    Засегнати продукти

    • Linux Linux: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf преди 5a3945e8dea6c9a8ec9e981169ac9487e1d6ad6a; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf преди 069258d5111eed9ac9586bee42d03d38e2975715; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf преди cefb44c367b2b52e50f97bc8526d39df9bcf5e60; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf преди 2363a757694752426fc47f3eadde15cf5f791fa5; 06d3fdfcdf5cefb06f2024b9d3dad356779399cf преди bf587a10c33e5571a299742e45bc18960b9912e7
    • Linux Linux: 6.6; преди 6.6; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък

    История

    • 10 август 2026 Публикувано

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    Първоизточници

    CVE-2026-68389: Linux | freedomonline.bg