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CVE-2026-80988: 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: NTB: ntb_transport: Fail TX enqueue when the QP link is down Commit f195a1a6fe41 ("ntb: Drop packets when qp link is down") meant to make ntb_transport_tx_enqueue() drop packets submitted while the QP link is down, but it only returns 0 without consuming the packet. Zero means success by this function's contract, so ntb_netdev reports NETDEV_TX_OK and forgets the skb: nothing queued it, nothing frees it, and it leaks, one skb for every transmit racing a link-down. Return -ENOLINK instead, restoring the contract that a non-zero return leaves the buffer owned by the caller. With the preceding patch, ntb_netdev frees the skb on non-retryable enqueue failures and returns NETDEV_TX_OK, so a packet racing with link-down is dropped without leaking or entering a busy retry loop.

    Засегнати продукти

    • Linux Linux: 3cfdc448e8bfa8a7eaa5af87f357330566124b78 преди 76c9ccc0c6bebfc74c0e727eda67687f5103ab06; bfa051f650a7708183bd86901ca4645dcf88c486 преди 96d792c65b9d5f7f9dd86a1004315db59e450c07; 4f4af6b8b7a23fa37decaf43b55403e6bfd8e219 преди 45cc11035165918dd1f81796ea98f81ece20d361; f195a1a6fe416882984f8bd6c61afc1383171860 преди e6cc541fab01099fd8efadfa4f13afdf118bf536; f195a1a6fe416882984f8bd6c61afc1383171860 преди 5eca0d899a3be661a7e2caaaa7467a6fa15d756c; f195a1a6fe416882984f8bd6c61afc1383171860 преди 894e136b432da75c0352c80299807a5c4b04f167; f195a1a6fe416882984f8bd6c61afc1383171860 преди 89177732fe1653bbfef10cf5d99bf20cf57762c2; f195a1a6fe416882984f8bd6c61afc1383171860 преди 873ce713fef5dde0939220f04f3484ec86a16fba; aa6d6ed213b62cbdb09ea32abbfa085dd987a0c9; a8986a61ebee0b54c5d648444fbae09bd1c6dcd2; 94491412a2afc8a5aea4c5b455aed86d3486f0b1; c2cd5d993f57f819d46fe62387d3cc34d8468e60; 449b1978d4e50b14b2a4de3a26d0b074593926a3; 5.10.195 преди 5.10.270; 5.15.132 преди 5.15.221; 6.1.53 преди 6.1.188; 4.14.326 преди 4.15; 4.19.295 преди 4.20; 5.4.257 преди 5.5; 6.4.16 преди 6.5; 6.5.3 преди 6.6
    • Linux Linux: 6.6; преди 6.6; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

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    Първоизточници

    CVE-2026-80988: Linux | freedomonline.bg