CVE-2026-80663

high

Description

In the Linux kernel, the following vulnerability has been resolved: tools/power/x86/intel-speed-select: Harden daemon pidfile open Avoid symlink-based pidfile clobbering by opening the pidfile with O_NOFOLLOW and validating it with fstat() before locking/writing. The daemon currently uses a fixed pidfile path under /tmp. A local unprivileged user can pre-create a symlink at that path and cause a root-run daemon instance to write into an attacker-chosen file.

References

https://git.kernel.org/stable/c/e8adac69d1bdf035ef97cc914e845acd4ef08e28

https://git.kernel.org/stable/c/db938eb9a3c1317596c28e94413b33426508d51b

https://git.kernel.org/stable/c/905493a6338c82a70da16f86e0a6215db5a3d73d

https://git.kernel.org/stable/c/72a07abc6b9046f07a08bba353cad7667bcc9dce

https://git.kernel.org/stable/c/607af438e6430893a822964c841a1994b33acccc

https://git.kernel.org/stable/c/19ffeb30fdfce63f8d6aca71bcdddb3f69d46278

Details

Source: Mitre, NVD

Published: 2026-08-28

Updated: 2026-08-29

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: High

EPSS

EPSS: 0.00172