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CVE-2026-93134: 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: printk: Fix possible console use-after-free When emitting a record via legacy printing, it is possible that a handover to another legacy printing context occurs. When a context has performed a handover, the console SRCU read lock is released and the pointer to the console struct might now be invalid. Therefore, after calling nbcon_legacy_emit_next_record() or console_emit_next_record(), it is necessary to check if a handover occurred _before_ further @con usage. Sashiko pointed out that console_flush_one_record() was not doing this. In console_flush_one_record(), after emitting a record, move the further usage of @con after the handover check.

    Засегнати продукти

    • Linux Linux: c158834b223fbfab3a14855ac203b8d9cddbbefd преди f0104a7b730de32eefb3d4a27279592b5504ad59; c158834b223fbfab3a14855ac203b8d9cddbbefd преди fbf9bb81b21537ede387a31cc586f1d2ce66a74e; c158834b223fbfab3a14855ac203b8d9cddbbefd преди 8f194dee0c0d1223255bae1429e1939882f540fc; c158834b223fbfab3a14855ac203b8d9cddbbefd преди 36630cafbeede0b64c370edb2f7b4094327ee1e0
    • Linux Linux: 6.12; преди 6.12; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

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