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CVE-2026-99010: 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: RFCOMM: free the skb when the DLC has no owner rfcomm_recv_data() hands the skb to d->data_ready() and returns 0 without freeing it, so the callback owns the skb from that point on. The tty implementation frees it when the DLC has been detached from its device: static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb) { struct rfcomm_dev *dev = dlc->owner; if (!dev) { kfree_skb(skb); return; } The socket implementation returns without freeing it, and the skb is leaked. A connected DLC can have no owner: rfcomm_sock_destruct() clears d->owner, while the DLC itself stays on the session until it is closed. Data frames that arrive in that window still find d->state == BT_CONNECTED in rfcomm_recv_data() and are handed to the callback, one leaked skb each. The leak does not stop on its own either. The remote runs out of credits only once RFCOMM_RX_THROTTLED is set, and for a socket the only place that sets it is rfcomm_sk_data_ready() itself, below the return. rfcomm_process_dlcs() keeps granting credits, so the remote keeps sending and the leak keeps growing. Free the skb, as the tty side does.

    Засегнати продукти

    • Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 05145638e0db770267c39615c8ce51ab058e34cf; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 91492e9194f3b10bc1eb50683ac440b74a487e39; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди a835b7f445427c7bdfc7169a97e0a1bec375e408; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди c3f76b025cbbb0ab47310dbe7de18092d89f2a99; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 4f46de658ce61968aef5ea7ae809d1c180330544; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди b8814161b14c610b7a09527433301d8ad8180aef; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 9d1afbf60ed53c5b051cd124153e0ae3078c8b93
    • Linux Linux: 2.6.12; преди 2.6.12; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.57 до 6.18.*; 7.2.11 до 7.2.*; от 7.3 нататък

    История

    • 23 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-99010: Linux | freedomonline.bg