CVE-2026-80663tools/power/x86/intel-speed-select: Harden daemon pidfile open
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 before 905493a6338c82a70da16f86e0a6215db5a3d73d; from 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 before db938eb9a3c1317596c28e94413b33426508d51b; from 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 before 72a07abc6b9046f07a08bba353cad7667bcc9dce; from 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 before 19ffeb30fdfce63f8d6aca71bcdddb3f69d46278; from 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 before e8adac69d1bdf035ef97cc914e845acd4ef08e28; from 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 before 607af438e6430893a822964c841a1994b33acccc | CNA record |
References
- https://git.kernel.org/stable/c/905493a6338c82a70da16f86e0a6215db5a3d73d
- https://git.kernel.org/stable/c/db938eb9a3c1317596c28e94413b33426508d51b
- https://git.kernel.org/stable/c/72a07abc6b9046f07a08bba353cad7667bcc9dce
- https://git.kernel.org/stable/c/19ffeb30fdfce63f8d6aca71bcdddb3f69d46278
- https://git.kernel.org/stable/c/e8adac69d1bdf035ef97cc914e845acd4ef08e28
- https://git.kernel.org/stable/c/607af438e6430893a822964c841a1994b33acccc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.