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CVE-2026-97599: 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: ieee802154: hwsim: serialize pib updates to fix double-free hwsim_update_pib() does an unserialized read-swap-free of phy->pib: pib_old = rtnl_dereference(phy->pib); ... rcu_assign_pointer(phy->pib, pib); kfree_rcu(pib_old, rcu); It assumes the RTNL is held, but ->set_channel is not always called under it: the mac802154 scan worker changes channels via drv_set_channel() without the RTNL. Such an update can race an RTNL-held one on the same phy; both read the same pib_old and both kfree_rcu() it, double-freeing the object. With SLUB percpu sheaves batching kfree_rcu(), this surfaces as a KASAN invalid-free in rcu_free_sheaf(). struct hwsim_phy has no lock for pib. Add one and make the swap atomic with rcu_replace_pointer() under it, dropping the misleading rtnl_dereference().

    Засегнати продукти

    • Linux Linux: f25da51fdc381ca2863248c7060b3662632f0872 преди 8f44a61f816581c35c1974c8c1a3b3c2c49e96be; f25da51fdc381ca2863248c7060b3662632f0872 преди e3b4681197aa026bd2d79358de5a3d62b76b04b9; f25da51fdc381ca2863248c7060b3662632f0872 преди 9973b3a67a7592a780ea12b08334539a900deec1; f25da51fdc381ca2863248c7060b3662632f0872 преди d3b8f264ce09573aededd0a97dc41c8147797d8f; f25da51fdc381ca2863248c7060b3662632f0872 преди db6442deecb1f13aeaf4f9d77746ea7555630fb3; f25da51fdc381ca2863248c7060b3662632f0872 преди 979d5b8de8ed4e1f997aef12da5694b99be7b871
    • Linux Linux: 4.19; преди 4.19; 6.1.191 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-2026-97599: Linux | freedomonline.bg