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CVE-2026-98009: 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: ets: clamp quantum in parse and fallback paths ets_qdisc_change() falls back to psched_mtu() with no floor for bands without an explicit quantum. With a crafted size table qdisc_pkt_len reaches ~2 GiB, so a zero psched_mtu on a headerless device makes the deficit-refill loop spin under the qdisc lock. Move the floor into ets_quantum_parse() so explicitly configured quanta are also clamped to [256, 1<<20], not just the fallback path. Conditions to recreate the bug: CONFIG_NET_SCH_ETS=y. Requires CAP_NET_ADMIN (namespace-local via unshare -Urn suffices). tc qdisc add dev dummy0 root ets bands 3 strict 2 quanta 1 1

    Засегнати продукти

    • Linux Linux: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди 440b66cc7b56ea38e9b878ae88da91992efaa4c4; dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди 4ef8664eafafc8db68a1d52601f17dc008a223b7; dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди 8b8d782c3b96376217087767dcf662cd3d25f226; dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди 226d2702e74a570f5bfae6115b4706da4b94e5cf; dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди 99ae477b892e203a37985ebc56f0063e072f7f4b; dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди 8f80b113dea0bed3c1a31a4224b72775cd9ec52d; dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди de22c30ec5598aca8797f02082d2ee1358dfa3ff; dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 преди 1c38487f46b243bfeefec0c0c86023a3904f2214
    • Linux Linux: 5.6; преди 5.6; 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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    CVE-2026-98009: Linux | freedomonline.bg