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: cxl/features: Reject Get Feature count larger than the output buffer cxlctl_get_feature() sizes its output buffer from the user's fwctl_rpc.out_len, but the device is told to write cxl_mbox_get_feat_in.count bytes into rpc_out->payload, which is a separate user-controlled value. Nothing bounds count against out_len, so a small out_len with a large count overflows the kvzalloc()'d buffer. A heap OOB write reachable from FWCTL_RPC. Reject requests where count exceeds the available payload room, before allocating.
Засегнати продукти
- Linux Linux: 5908f3ed6dc209e5c824e63afda7545805f75a7e преди 3f02031a0a53de0d3ef066c92d0486b2b11be40c; 5908f3ed6dc209e5c824e63afda7545805f75a7e преди 329ea475581c647a680a6937e353c1a6e2534b40; 5908f3ed6dc209e5c824e63afda7545805f75a7e преди 4bf6bac375076ced2fa4b3fef8739bd985f93456
- Linux Linux: 6.15; преди 6.15; 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-2026-93079
- https://nvd.nist.gov/vuln/detail/CVE-2026-93079
- https://git.kernel.org/stable/c/3f02031a0a53de0d3ef066c92d0486b2b11be40c
- https://git.kernel.org/stable/c/329ea475581c647a680a6937e353c1a6e2534b40
- https://git.kernel.org/stable/c/4bf6bac375076ced2fa4b3fef8739bd985f93456