CVE-2026-90047 Linux Kernel drm/xe - Misconfiguration

Linux kernel drm/xe contains a memory mismanagement vulnerability caused by rounding up the flat CCS storage offset instead of rounding down, letting the compression hardware overwrite VRAM memory, causing system instability, exploit requires specific hardware and conditions.

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

Details

Type
Misconfiguration
Impact
Denial Of Service, Data Tampering
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 Linux kernel version that includes the fix changing round_up() to round_down() for flat CCS storage offset calculation.

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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