[ CVE-2026-100079 · Published 25 Sep 2026 ]
Vulnerability in Linux
[ Description ]Official description
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: unregister debugfs entries on teardown ucsi_register() creates per-instance debugfs entries, but ucsi_unregister() keeps them around until ucsi_destroy(). Drivers like ucsi_glink that unregister/register the same UCSI instance across remoteproc restart then try to create an already existing debugfs directory and log: debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi' Unregister debugfs entries as part of ucsi_unregister(), and clear ucsi->debugfs after freeing it so repeated unregister paths remain safe.
[ Fixes ]Fixes and patches
- Patch on git.kernel.orgVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on git.kernel.orgVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on git.kernel.orgVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on git.kernel.orgVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on git.kernel.orgVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ Advisories ]Government CERT advisories
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CERT-FRCERTFR-2026-AVI-1289
Multiple vulnerabilities in the Debian LTS Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian LTS Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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CERT-FRCERTFR-2026-AVI-1253
Multiple vulnerabilities in the Debian Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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BSI CERT-BundWID-SEC-2026-3588
Linux Kernel: Multiple vulnerabilities Translated from German
[ References ]References
- git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408bPatch
- git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585dPatch
- git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2baPatch
- git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4Patch
- git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7cPatch