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CVE-2026-45885: 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: cpcap-battery: 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: 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди c549dd3de4b3f6e726d1b8386d40ccf7d3abdbe4; 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди 3ff75cba1c98349a23a8f9333981deba1972cc11; 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди 2ce2334be155bd8bad6377e99984246ce4dbd08c; 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди cbb9b07f88a9ef6518934c41eb3e8cf840d657d5; 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди f3fbe309c9bfe1aac1e2b26543e9dc4829f3275a; 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди 2841bbb5a35c4449c0a0458e8e476b2a62f95147; 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди e261be6f18929f2397cd54cd583a2df624c129c1; 874b2adbed1253a11549cb9b7b912ab65fea9cf2 преди 642f33e34b969eedec334738fd5df95d2dc42742
    • Linux Linux: 4.13; преди 4.13; 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

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    Първоизточници

    CVE-2026-45885: Linux | freedomonline.bg