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.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: OPP: Fix race between OPP addition and lookup A race exists between dev_pm_opp_add_dynamic() and dev_pm_opp_find_freq_exact(): CPU0 (add) CPU1 (lookup) ------------------------------- ------------------------------ _opp_add() mutex_lock() list_add(&new_opp->node, head) mutex_unlock() _opp_table_find_key() mutex_lock() dev_pm_opp_get(opp) kref_get() mutex_unlock() kref_init(&new_opp->kref) dev_pm_opp_put() kref_put_mutex() The newly added OPP is inserted into the list before its kref is initialized. A concurrent lookup can find this OPP and increment its reference count while it is still uninitialized, leading to refcount corruption and a potential premature free. Fix this by initializing ->kref and ->opp_table before making the OPP visible via list_add(). This ensures any concurrent lookup observes a fully initialized object. [ Viresh: Updated commit log ]
Засегнати продукти
- Linux Linux: 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди 835b9b5b4d287a03c713680b0231d36ff599201b; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди 2fb061a90898420d8ca1a0b9959ca977d90fa841; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди e25be5d812ec8ca2615d23726b3861b04e2fff35; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди 932ebfad767be1395946cbc1727a7c38eeee3d24; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди 1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди 46696b0b2123475d7f95909435c09808fc5ffd23; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 преди f5e1cc9a284bff2510981643a5bca4bc4c21b81a
- Linux Linux: 4.11; преди 4.11; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-74405
- https://nvd.nist.gov/vuln/detail/CVE-2026-74405
- https://git.kernel.org/stable/c/835b9b5b4d287a03c713680b0231d36ff599201b
- https://git.kernel.org/stable/c/2fb061a90898420d8ca1a0b9959ca977d90fa841
- https://git.kernel.org/stable/c/e25be5d812ec8ca2615d23726b3861b04e2fff35
- https://git.kernel.org/stable/c/932ebfad767be1395946cbc1727a7c38eeee3d24
- https://git.kernel.org/stable/c/1946ea2f6b3ec00e313c78e83fc196f1f6aba2a9
- https://git.kernel.org/stable/c/46696b0b2123475d7f95909435c09808fc5ffd23
- https://git.kernel.org/stable/c/bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5
- https://git.kernel.org/stable/c/f5e1cc9a284bff2510981643a5bca4bc4c21b81a