CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
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: module/dups: Fix use-after-free in kmod_dup_req lifetime handling The kmod dups code uses RCU to ensure that a kmod_dup_req instance is freed only after it is no longer referenced. When releasing an instance, the kmod_dup_request_delete() function removes the kmod_dup_req from the dup_kmod_reqs list, waits via synchronize_rcu() and finally frees it. However, this doesn't work correctly because parallel users referencing the instance in kmod_dup_request_exists_wait() don't enter an RCU read-side critical section. This can result in a use-after-free. The kmod_dup_request_exists_wait() function may need to hold a valid reference to a kmod_dup_req instance across a blocking wait until the corresponding modprobe command completes. This makes it unsuitable for RCU. Fix the issue by changing the lifecycle management of kmod_dup_req to use reference counting.
Засегнати продукти
- Linux Linux: 8660484ed1cf3261e89e0bad94c6395597e87599 преди a3205bd1f218053575589b14caf8df667f344134; 8660484ed1cf3261e89e0bad94c6395597e87599 преди 2c85e0fb528e039aa8ea1e9c2a1f64347f990541; 8660484ed1cf3261e89e0bad94c6395597e87599 преди b2709aad7599f6fd957939b60f4a8323c8f08072; 8660484ed1cf3261e89e0bad94c6395597e87599 преди cd2396fc9684d2cfd3f3c3f09c79d6d9d725b0ca; 8660484ed1cf3261e89e0bad94c6395597e87599 преди 5eecb11b543f9f417bcf0dea239ff99c6af65dbd
- Linux Linux: 6.4; преди 6.4; 6.6.160 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък
История
- 17 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-90291
- https://nvd.nist.gov/vuln/detail/CVE-2026-90291
- https://git.kernel.org/stable/c/a3205bd1f218053575589b14caf8df667f344134
- https://git.kernel.org/stable/c/2c85e0fb528e039aa8ea1e9c2a1f64347f990541
- https://git.kernel.org/stable/c/b2709aad7599f6fd957939b60f4a8323c8f08072
- https://git.kernel.org/stable/c/cd2396fc9684d2cfd3f3c3f09c79d6d9d725b0ca
- https://git.kernel.org/stable/c/5eecb11b543f9f417bcf0dea239ff99c6af65dbd