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CVE-2026-68411: 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: wifi: mac80211_hwsim: clamp virtio RX length before skb_put hwsim_virtio_rx_work() passes the virtqueue used-ring length reported by the device straight to skb_put() on a fixed-size receive skb. A backend reporting a length larger than the skb tailroom drives skb_put() past the buffer end and hits skb_over_panic() -- a host-triggerable guest panic (denial of service). Clamp the length to the skb's available room before skb_put(). A conforming device never reports more than the posted buffer size, so valid frames are unaffected; a truncated over-report then fails the length/header checks in hwsim_virtio_handle_cmd() and is dropped, so truncating rather than dropping here cannot be turned into a parsing problem.

    Засегнати продукти

    • Linux Linux: 5d44fe7c9808c56e136e59147bd932f5491520f1 преди 7f9d678b870fca8eaf1d46fa915cba0b1d5b387a; 5d44fe7c9808c56e136e59147bd932f5491520f1 преди 909573d6a9b67354fc0515952574564e7c909c62; 5d44fe7c9808c56e136e59147bd932f5491520f1 преди 5779e4a33e1666ddfeba43e96e29c4a9e5254ff0; 5d44fe7c9808c56e136e59147bd932f5491520f1 преди 82c5a30a66e2a7337d99476c67d6fc1a99c4250e; 5d44fe7c9808c56e136e59147bd932f5491520f1 преди fade308845c89f784da8a6780c1e77258488f1b6; 5d44fe7c9808c56e136e59147bd932f5491520f1 преди 6dc76371a9a360c29de00df5b11563102d9d675a; 5d44fe7c9808c56e136e59147bd932f5491520f1 преди 99dc05c75acc3c8cde8d89c5371f4b569de5ac62; 5d44fe7c9808c56e136e59147bd932f5491520f1 преди 10a2b430f8f06ae14b9590b6f6faa6b588ef0654
    • Linux Linux: 5.7; преди 5.7; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 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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    CVE-2026-68411: Linux | freedomonline.bg