← Vulnerability feed

Vulnerability record · CVE-2026-100079 · published 25 September 2026

CVE-2026-100079: Linux kernel vulnerability

Linux · Linux Kernel

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.

5.5 CVSS 3.1 Medium EPSS 0.11% · top 98.5% CWE-772 · CWE-772
5.5CVSS 3.1 base score
0.11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
19 Oct 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b Patch
https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d Patch
https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba Patch
https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4 Patch
https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c Patch

Track CVE-2026-100079 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-39682Linux kernel TLS zero-length record handling flaw on rx_listThe Linux kernel TLS receive path mishandles zero-length records that arrive from the rx_list, breaking the assumption that a record type change cann…KEVEPSS 3.3%analysed8.8CVE-2026-53266Linux kernel ebtables SNAT out-of-bounds write in ARP rewriteThe ebtables SNAT target rewrites the ARP sender hardware address via skb_store_bits() without first making that range writable. When the ARP SHA byt…KEVEPSS 0.93%analysed8.8CVE-2013-6282Linux kernel ARM get_user/put_user missing address validationThe get_user and put_user API functions in the Linux kernel before 3.5.5 on v6k and v7 ARM platforms fail to validate certain addresses, allowing cra…KEVEPSS 40%analysed8.4CVE-2022-0185Linux Kernel Filesystem Context Heap Buffer OverflowThe legacy_parse_param function in the Linux kernel's Filesystem Context functionality fails to properly verify supplied parameter lengths, causing a…KEVEPSS 25%analysed8.4CVE-2013-2094Linux Kernel perf_swevent_init Integer Type Flaw Enables Local Privilege EscalationThe perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, allowing a local user to…KEVEPSS 48%analysed7.8CVE-2026-53362Linux kernel IPv6 UDP paged allocation out-of-bounds write__ip6_append_data() in the Linux kernel mis-accounts fraggap on the paged-allocation path, leaving the linear skb area undersized while pagedlen is o…KEVEPSS 0.71%analysed7.8CVE-2026-46300Linux kernel out-of-bounds write vulnerabilityIn the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can…KEVEPSS 16%7.8CVE-2026-31431Linux kernel algif_aead in-place crypto operation flawThe Linux kernel's algif_aead AF_ALG AEAD interface operated in-place on buffers that come from different mappings, a flaw the fix resolves by revert…KEVEPSS 98%analysed

Source: NIST National Vulnerability Database (record CVE-2026-100079), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.