CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, при специфични условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: coredump: hold RCU while releasing parked threads coredump_finish() releases the parked threads by clearing ->task in their core_thread entry and calling wake_up_process() on each of them. It does that without holding a reference on the task and without being inside rcu. But calling wake_up_process(task) without rcu here isn't safe. A parked thread doesn't need that wakeup to leave. A spurious wakeup or a preemption after the store is enough for the task to go away. So if the coredump client is preempted between the store and wake_up_process() the thread can exit and be freed in the meantime and try_to_wake_up() takes pi_lock in freed memory. Hold rcu across the loop.
Засегнати продукти
- Linux Linux: a94e2d408eaedbd85aae259621d46fafc10479a2 преди fd0fbe84312fda2fc187428c92c50b7d03a9d24c; a94e2d408eaedbd85aae259621d46fafc10479a2 преди 71146c437bae59e5280f657965dc6d006ee3989b; a94e2d408eaedbd85aae259621d46fafc10479a2 преди 0fce73efee40c65ce26641c5d93942462f9e8307; a94e2d408eaedbd85aae259621d46fafc10479a2 преди 16e94ed90b1b02398e044d41fd1db34828daa08e; a94e2d408eaedbd85aae259621d46fafc10479a2 преди a0f09ff4c6b93312e565cfe75d76c3a551a3ec4c; a94e2d408eaedbd85aae259621d46fafc10479a2 преди b0eca0edddf4c1dbaf6d1f6a8636b4235f5bc573; a94e2d408eaedbd85aae259621d46fafc10479a2 преди 61d58591aa0188bf2463e263962256316ff8b576
- Linux Linux: 2.6.27; преди 2.6.27; 6.1.191 до 6.1.*; 6.6.161 до 6.6.*; 6.12.115 до 6.12.*; 6.18.60 до 6.18.*; 7.2.14 до 7.2.*; 7.3.1 до 7.3.*; от 7.4-rc1 нататък
История
- 2 ноември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-99218
- https://nvd.nist.gov/vuln/detail/CVE-2026-99218
- https://git.kernel.org/stable/c/fd0fbe84312fda2fc187428c92c50b7d03a9d24c
- https://git.kernel.org/stable/c/71146c437bae59e5280f657965dc6d006ee3989b
- https://git.kernel.org/stable/c/0fce73efee40c65ce26641c5d93942462f9e8307
- https://git.kernel.org/stable/c/16e94ed90b1b02398e044d41fd1db34828daa08e
- https://git.kernel.org/stable/c/a0f09ff4c6b93312e565cfe75d76c3a551a3ec4c
- https://git.kernel.org/stable/c/b0eca0edddf4c1dbaf6d1f6a8636b4235f5bc573
- https://git.kernel.org/stable/c/61d58591aa0188bf2463e263962256316ff8b576