CVE-2026-89814

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89814

Key Details

CVE	CVE-2026-89814
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:

drm/amdgpu: clamp the isolation index for rings outside a partition

adev->isolation[] has one slot per partition, but a ring that is not

assigned to one keeps AMDGPU_XCP_NO_PARTITION, which is ~0, so indexing

the array with it is out of bounds. SDMA submissions hit this on both

the isolation enforcement and the VM flush path and trip UBSAN.

Fall back to the first slot the way the cleaner shader path already

does, and stop taking the address before the ring type check that makes

it relevant. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89814
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89814

Source

Reference

NVD

CVE