CVE-2026-89825 Linux kernel drm/panthor - Out of Bounds Read/Write

Linux kernel drm/panthor contains a bounds check vulnerability caused by improper 32-bit arithmetic in firmware control interface offset validation, letting attackers potentially cause out-of-bounds access, exploit requires crafted firmware with malicious offsets.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.18% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read/Write
Impact
Denial Of Service, Information Disclosure
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/panthor bounds checks.

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

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