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CVE-2026-45879: 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: power: supply: bq25980: 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: 5069185fc18e810715a91d80fcd075e03add600c преди 86f93dfb23f5bf4f285c4256a7e909d222f7de56; 5069185fc18e810715a91d80fcd075e03add600c преди 16875e3b7bc9e59bfa0acaf1e43f275a6f42a30f; 5069185fc18e810715a91d80fcd075e03add600c преди 0560a4b09c92e2ecaa883965cf6f9ca51c158ff9; 5069185fc18e810715a91d80fcd075e03add600c преди 0de95d29d847c6217b7d5845e24a71a4aee7b359; 5069185fc18e810715a91d80fcd075e03add600c преди 4aeaf03c17260415c2fdd55992f9ad4188d5455a; 5069185fc18e810715a91d80fcd075e03add600c преди 03d1e4ee4e6aa6d2966e883e4ca0e5be73bf1b7c; 5069185fc18e810715a91d80fcd075e03add600c преди abea607ff2f62f4c0a5fb29f7fbdaaab163276a4; 5069185fc18e810715a91d80fcd075e03add600c преди 5f0b1cb41906e86b64bf69f5ededb83b0d757c27
    • Linux Linux: 5.10; преди 5.10; 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

    • 27 май 2026 Публикувано

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    CVE-2026-45879: Linux | freedomonline.bg