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: s390/vfio_ccw: Selectively expand io_mutex The io_mutex was defined to serialize the io_regions, but then has also sort of been associated with the I/O themselves because of the close relationship they share. With the handful of races that are possible, the choices are either to: A) expand the scope of io_mutex to close these remaining windows, or B) reduce the scope of io_mutex to just io_region, and introduce a new lock mechanism for the remaining I/O resources This patch implements A, since B brings with it a lot more interactions that would need to be tracked and kept in a correct hierarchy. It also takes advantage of the workqueue element for cp_free() that now gets called out of fsm_notoper(), which could be invoked out of an interrupt context and thus cannot acquire a mutex itself.
Засегнати продукти
- Linux Linux: 4f76617378ee97c557b526cb58d3c61eb0a9c963 преди dab6a6627b0b0cce23653e99c7b0bf8c6cfd82e0; 4f76617378ee97c557b526cb58d3c61eb0a9c963 преди 56d7488533ceac4e986e96e15c9e487a2245bc01; 4f76617378ee97c557b526cb58d3c61eb0a9c963 преди f72a51810d49411bd8cad0c2df8592320a2fe5cc; 4f76617378ee97c557b526cb58d3c61eb0a9c963 преди 2ba9efdf9ebedc4e54df4b56aa3b43a65f7967cd; 4f76617378ee97c557b526cb58d3c61eb0a9c963 преди b6aecea4b2b246f9fbd98a5712daa1193a60818e; 4f76617378ee97c557b526cb58d3c61eb0a9c963 преди 2a5ac0c0f1f7da33929211a2e41911bf72ee35d8; 4f76617378ee97c557b526cb58d3c61eb0a9c963 преди 34f4feff3e90bd09308fad0974e97113b23b812a
- Linux Linux: 5.2; преди 5.2; 5.15.218 до 5.15.*; 6.1.185 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; 7.2 до *
История
- 26 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-80548
- https://nvd.nist.gov/vuln/detail/CVE-2026-80548
- https://git.kernel.org/stable/c/dab6a6627b0b0cce23653e99c7b0bf8c6cfd82e0
- https://git.kernel.org/stable/c/56d7488533ceac4e986e96e15c9e487a2245bc01
- https://git.kernel.org/stable/c/f72a51810d49411bd8cad0c2df8592320a2fe5cc
- https://git.kernel.org/stable/c/2ba9efdf9ebedc4e54df4b56aa3b43a65f7967cd
- https://git.kernel.org/stable/c/b6aecea4b2b246f9fbd98a5712daa1193a60818e
- https://git.kernel.org/stable/c/2a5ac0c0f1f7da33929211a2e41911bf72ee35d8
- https://git.kernel.org/stable/c/34f4feff3e90bd09308fad0974e97113b23b812a