CVE-2026-89814 Linux Kernel - Out of Bounds Read/Write

Linux kernel contains an out-of-bounds array access vulnerability in drm/amdgpu caused by improper indexing of isolation array for rings outside a partition, letting attackers cause kernel crashes or undefined behavior, exploit requires crafted SDMA submissions.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read/Write
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for drm/amdgpu isolation index clamping.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs