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CVE-2026-98010: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: net/sched: drr: clamp quantum in change class drr_change_class() rejects explicit quantum==0 but falls back to psched_mtu() with no floor. With a crafted size table qdisc_pkt_len reaches ~2 GiB, so quantum=1 (or a zero psched_mtu on a headerless device) makes the deficit-refill loop spin under the qdisc lock. Add clamp_t(u32, quantum, 256, 1<<20) after the zero reject and on the fallback path. The explicit-zero reject is preserved. Conditions to recreate the bug: CONFIG_NET_SCH_DRR=y. Requires CAP_NET_ADMIN (namespace-local via unshare -Urn suffices). tc qdisc add dev dummy0 root drr tc class add dev dummy0 parent 1: classid 1:1 drr quantum 1

    Засегнати продукти

    • Linux Linux: 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди e2297bbf9cf6ece86f1d1f8c683517a994990f9e; 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди 560794ee6e040b6e1c4ac2b3c8909f341a4596ee; 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди 23fea7e6736b2e1c6f6f2f05cccf33d36834da73; 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди b464affe9f9dfe41ac48930c376e3fb8596651b0; 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди dc8b374214ef5bba4882bbd95b361e42555cfc0d; 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди d43cded350fe1218493ad3d37a276aff14108ae6; 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди 8f756ae1c87414ce9cc21b30e6e4c036d6e9e80b; 13d2a1d2b032de08d7dcab6a1edcd47802681f96 преди 8382abec0f1568d0a5590d75a3df92f23fcf5196
    • Linux Linux: 2.6.29; преди 2.6.29; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

    История

    • 25 септември 2026 Публикувано

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    Първоизточници

    CVE-2026-98010: Linux | freedomonline.bg