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CVE-2026-80952: Linux

7.8

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, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix info leak and UAF in device unregister path i3c_master_unregister_i3c_devs() clears i3cdev->dev->desc before calling device_unregister(). During device_unregister(), device_del() emits a KOBJ_REMOVE uevent and unbinds the driver while the device descriptor is still expected to be valid. As a result, i3c_device_uevent() and a racing modalias_show() can observe a NULL desc and fall back to an uninitialized stack struct i3c_device_info, leaking kernel stack contents in the generated modalias. Driver .remove() callbacks may also encounter an unexpected NULL desc during unbind. Keep desc valid until device_unregister() has completed. Since device_unregister() drops the device reference and may free the device, take an extra reference with get_device() before unregistering. Clear desc afterwards and release the extra reference with put_device(). This preserves the release-time invariant that desc must be NULL while avoiding both the information leak and a potential use-after-free from writing desc after the device has been released.

    Засегнати продукти

    • Linux Linux: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди 334cfb5e285cece5dc49fb3fb8ea9b70b2cb5d7e; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди 109995153898454c7795c2c299fd0a0b57456a4b; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди c64daaaba08e490c8347ff60aacac4dd51249f91; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди ef72ff6650c4ebf2b444708d84df66db42f262d9; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди c16b6f25e0cc2dd1055dde1256cbf5a9e888cf49; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди 94fb9786d67a8f8b899e77381620f86bad94fdf7; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди 4837be0f9ac2efe5e83b35a696b6242c473d280c; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 преди d2c743efd2d1ee64e94324664808f623dd865872
    • Linux Linux: 5.0; преди 5.0; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-80952: Linux | freedomonline.bg