CVE-2026-80954

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-80954

Key Details

CVE	CVE-2026-80954
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

i3c: Fix unlocked dereference of dev->desc in i3c_device_get_supported_xfer_mode()

i3c_device_get_supported_xfer_mode() uses dev->desc to obtain the

master controller. However, dev->desc must not be dereferenced unless

bus->lock is held, and this function does not take that lock.

The function only needs access to the master controller associated with

the device's bus. Use dev->bus instead, which is always valid for the

lifetime of the device and does not require dereferencing dev->desc. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-80954
CVE	https://www.cve.org/CVERecord?id=CVE-2026-80954

Source

Reference

NVD

CVE