tools/power/x86/intel-speed-select: Harden daemon pidfile open

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80663
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:51 UTC
Updated2026-08-28 08:16:51 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 905493a6338c82a70da16f86e0a6215db5a3d73d git Not specified
CNA Linux Linux affected 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 db938eb9a3c1317596c28e94413b33426508d51b git Not specified
CNA Linux Linux affected 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 72a07abc6b9046f07a08bba353cad7667bcc9dce git Not specified
CNA Linux Linux affected 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 19ffeb30fdfce63f8d6aca71bcdddb3f69d46278 git Not specified
CNA Linux Linux affected 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 e8adac69d1bdf035ef97cc914e845acd4ef08e28 git Not specified
CNA Linux Linux affected 7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6 607af438e6430893a822964c841a1994b33acccc git Not specified
CNA Linux Linux affected 5.18 Not specified
CNA Linux Linux unaffected 5.18 semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/607af438e6430893a822964c841a1994b33acccc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/72a07abc6b9046f07a08bba353cad7667bcc9dce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e8adac69d1bdf035ef97cc914e845acd4ef08e28 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/db938eb9a3c1317596c28e94413b33426508d51b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/19ffeb30fdfce63f8d6aca71bcdddb3f69d46278 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/905493a6338c82a70da16f86e0a6215db5a3d73d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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