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CVE-2026-98748: 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: serial: 8250_bcm7271: fix use-after-free in brcmuart_remove() brcmuart_handle_irq() starts priv->hrt to work around a receive-timeout quirk of the 8250 core when hardware flow control is enabled; the timer callback brcmuart_hrtimer_func() dereferences priv. brcmuart_remove() cancels the hrtimer before it unregisters the port, so a receive-timeout interrupt that arrives in between re-arms the timer. After devm frees priv, the callback runs on freed memory. Unregister the port before cancelling the hrtimer. serial8250_unregister_port() shuts the port down and frees its IRQ, so brcmuart_handle_irq() can no longer restart the timer, and the final hrtimer_cancel() drains any timer that was armed before or during the unregister. This issue was found by an in-house static analysis tool.

    Засегнати продукти

    • Linux Linux: 41a469482de257ea8db43cf74b6311bd055de030 преди 134d239558f2ac2602fad2392ec3e6d8d76af7d8; 41a469482de257ea8db43cf74b6311bd055de030 преди dad9fb86829ee96bbc6315d7209ceb24820ef889; 41a469482de257ea8db43cf74b6311bd055de030 преди dd81650bec58ac70e5dfde2ec390acc1f0d1ed76; 41a469482de257ea8db43cf74b6311bd055de030 преди f5ce06e648d775cc1ccf66f4f594bb8b559a7d8e; 41a469482de257ea8db43cf74b6311bd055de030 преди e32440fa536af96bdbc61d933a7c3a920b965edc; 41a469482de257ea8db43cf74b6311bd055de030 преди 0794ba5332754866b2f1c0cca668775be3ffcf0a; 41a469482de257ea8db43cf74b6311bd055de030 преди 189b9dc8c96ec9486482f27c1372b04a7152175e
    • Linux Linux: 5.13; преди 5.13; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; от 7.3 нататък

    История

    • 18 октомври 2026 Публикувано

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    Първоизточници

    CVE-2026-98748: Linux | freedomonline.bg