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CVE-2026-45867: 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: power: supply: act8945a: Fix use-after-free in power_supply_changed() Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `power_supply` handle, means that the `power_supply` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in reverse allocation order). This means that during removal, there is a race condition where an interrupt can fire just _after_ the `power_supply` handle has been freed, *but* just _before_ the corresponding unregistration of the IRQ handler has run. This will lead to the IRQ handler calling `power_supply_changed()` with a freed `power_supply` handle. Which usually crashes the system or otherwise silently corrupts the memory... Note that there is a similar situation which can also happen during `probe()`; the possibility of an interrupt firing _before_ registering the `power_supply` handle. This would then lead to the nasty situation of using the `power_supply` handle *uninitialized* in `power_supply_changed()`. Fix this racy use-after-free by making sure the IRQ is requested _after_ the registration of the `power_supply` handle.

    Засегнати продукти

    • Linux Linux: a09209acd6a808794bdd7866af3678d1fd1d90e7 преди f2a0777b1e5a3cee1712c4d3e9095c0df8fc8cb3; a09209acd6a808794bdd7866af3678d1fd1d90e7 преди 0768e8525a46df103647ca5059b32320d7fd17e4; a09209acd6a808794bdd7866af3678d1fd1d90e7 преди d023ef9f748b2090f7a9dbdd5c622b6ad99088ea; a09209acd6a808794bdd7866af3678d1fd1d90e7 преди 697bb5dc0cb4791e244f3970b067bc1ef33be9d9; a09209acd6a808794bdd7866af3678d1fd1d90e7 преди 76a42ba547a9b2e2337894f67a4d9247445007d5; a09209acd6a808794bdd7866af3678d1fd1d90e7 преди f27eb76def5c07e4d7cc468b40741f19dafc83ce; a09209acd6a808794bdd7866af3678d1fd1d90e7 преди 83c1bd466c514cb24ca6ef347c5aac76a13c4e1e; a09209acd6a808794bdd7866af3678d1fd1d90e7 преди 3291c51d4684d048dd2eb91b5b65fcfdaf72141f
    • Linux Linux: 4.9; преди 4.9; 5.10.252 до 5.10.*; 5.15.202 до 5.15.*; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.14 до 6.18.*; 6.19.4 до 6.19.*; от 7.0 нататък

    История

    • 27 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-45867: Linux | freedomonline.bg