CVE-2026-93080: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix transport device teardown lookup SCMI transport devices are deliberately excluded from normal SCMI bus matching so protocol drivers cannot bind to the internal transport children. However, scmi_device_destroy() uses the same protocol/name lookup to find devices that must be unregistered during channel teardown. Split the match helper so driver matching still skips transport devices, while explicit child lookup can find them for teardown. Use a shared transport-device name prefix macro for both matching and name generation. Since transport-device names are derived from direction and protocol ID, reject duplicate protocol channel setup before creating or finding a transport device. This prevents malformed firmware with duplicate protocol child nodes from reusing an existing transport device and then destroying it when the duplicate IDR insertion fails.

Засегнати продукти

• Linux Linux: 9593804c44c24545e1b0496786dcb765d7b0e193 преди c656427440ea627166394d00c4b72147d5d79c60; 9593804c44c24545e1b0496786dcb765d7b0e193 преди 4635953b4c1af477e166073521a77de6279f6929; 9593804c44c24545e1b0496786dcb765d7b0e193 преди a14dd8fe0a95db638c550ed984cfe2a7428c783d
• Linux Linux: 6.16; преди 6.16; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-93080
• https://nvd.nist.gov/vuln/detail/CVE-2026-93080
• https://git.kernel.org/stable/c/c656427440ea627166394d00c4b72147d5d79c60
• https://git.kernel.org/stable/c/4635953b4c1af477e166073521a77de6279f6929
• https://git.kernel.org/stable/c/a14dd8fe0a95db638c550ed984cfe2a7428c783d