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CVE-2026-46270: Linux

8.4

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: 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: e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди d4e2e3c3caa26b93aa9f36d0a6824b584e2a8dfc; e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди 62d753b916bd500bb269b7078cdab73198ab4718; e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди a39f8f06216f73ef40e71e2fe4ad071964c1fd36; e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди af261f218a7606f93d2c786353d60bb4feb56ef0; e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди 2178dc65d45e2f7bcaa8af8d80d100419bdab251; e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди 64e15155095f39f4dec9b4659da1238ef8fc54d4; e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди 721449a15170fc5f028a7576d7f65b9f60d53482; e86d69dd786e94046b8f5be7df1b9a8226a40b2a преди e2febe375e5ea5afed92f4cd9711bde8f24ee6d2
    • Linux Linux: 4.2; преди 4.2; 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.*; 7.0 до *

    История

    • 3 юни 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-46270: Linux | freedomonline.bg