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CVE-2026-43451: Linux

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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: netfilter: nfnetlink_queue: fix entry leak in bridge verdict error path nfqnl_recv_verdict() calls find_dequeue_entry() to remove the queue entry from the queue data structures, taking ownership of the entry. For PF_BRIDGE packets, it then calls nfqa_parse_bridge() to parse VLAN attributes. If nfqa_parse_bridge() returns an error (e.g. NFQA_VLAN present but NFQA_VLAN_TCI missing), the function returns immediately without freeing the dequeued entry or its sk_buff. This leaks the nf_queue_entry, its associated sk_buff, and all held references (net_device refcounts, struct net refcount). Repeated triggering exhausts kernel memory. Fix this by dropping the entry via nfqnl_reinject() with NF_DROP verdict on the error path, consistent with other error handling in this file.

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    • Linux Linux: 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди a907bea273b60d3e604ec4e8e1f6c49954805794; 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди 0b18d1b834ab5a5009be70b530f978d7989e445b; 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди b38d2b4603fd3dda24eb8b3dd81c18a0930be97b; 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди 47b1c5d1b0944aa88299f55a846fabaefc756982; 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди cf4a4df38d1747e06fc54f9879bd7a6f4178032f; 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди 9853d94b82d303fc4ac37d592a23a154096ecd41; 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди 208669df703a25a601f45822b10c413f258bf275; 8d45ff22f1b43249f0cf1baafe0262ca10d1666e преди f1ba83755d81c6fc66ac7acd723d238f974091e9
    • Linux Linux: 4.7; преди 4.7; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.167 до 6.1.*; 6.6.130 до 6.6.*; 6.12.78 до 6.12.*; 6.18.19 до 6.18.*; 6.19.9 до 6.19.*; от 7.0 нататък

    История

    • 8 май 2026 Публикувано

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    CVE-2026-43451: Linux | freedomonline.bg