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: fbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info Hold state of deferred I/O in struct fb_deferred_io_state. Allocate an instance as part of initializing deferred I/O and remove it only after the final mapping has been closed. If the fb_info and the contained deferred I/O meanwhile goes away, clear struct fb_deferred_io_state.info to invalidate the mapping. Any access will then result in a SIGBUS signal. Fixes a long-standing problem, where a device hot-unplug happens while user space still has an active mapping of the graphics memory. The hot- unplug frees the instance of struct fb_info. Accessing the memory will operate on undefined state.
Засегнати продукти
- Linux Linux: 60b59beafba875aef6d378078bce0baf2287ae14 преди 4aab89603b637a2e441b38808c4f6fe7d1184df6; 60b59beafba875aef6d378078bce0baf2287ae14 преди 4fda0d6b45faad44926dd3e4f55f118d899b2e27; 60b59beafba875aef6d378078bce0baf2287ae14 преди 2a40f8bc9bb713329f1c35ffc199ee961a7135b0; 60b59beafba875aef6d378078bce0baf2287ae14 преди 2b53d3a52e8e5403a4f4fb57ac6cad3fd2cb1066; 60b59beafba875aef6d378078bce0baf2287ae14 преди 25c2b77bc463f29ee71a54b883548baf9386a0db; 60b59beafba875aef6d378078bce0baf2287ae14 преди a0aafb421dd15e935d81543152617f2742cefa70; 60b59beafba875aef6d378078bce0baf2287ae14 преди 9ded47ad003f09a94b6a710b5c47f4aa5ceb7429
- Linux Linux: 2.6.22; преди 2.6.22; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.140 до 6.6.*; 6.12.88 до 6.12.*; 6.18.30 до 6.18.*; 7.0.4 до 7.0.*; от 7.1 нататък
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии
Вид слабост
История
- 27 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-46065
- https://nvd.nist.gov/vuln/detail/CVE-2026-46065
- https://git.kernel.org/stable/c/4aab89603b637a2e441b38808c4f6fe7d1184df6
- https://git.kernel.org/stable/c/4fda0d6b45faad44926dd3e4f55f118d899b2e27
- https://git.kernel.org/stable/c/2a40f8bc9bb713329f1c35ffc199ee961a7135b0
- https://git.kernel.org/stable/c/2b53d3a52e8e5403a4f4fb57ac6cad3fd2cb1066
- https://git.kernel.org/stable/c/25c2b77bc463f29ee71a54b883548baf9386a0db
- https://git.kernel.org/stable/c/a0aafb421dd15e935d81543152617f2742cefa70
- https://git.kernel.org/stable/c/9ded47ad003f09a94b6a710b5c47f4aa5ceb7429
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html