CVE-2026-99146
kernel: kernel: Denial of Service via unvalidated DMC firmware load address in i915 driver
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 28, 2026
Updated · October 30, 2026
Description
A flaw was found in the Linux kernel's Intel i915 graphics driver. When parsing Display Microcontroller (DMC) firmware headers, the driver fails to validate the target load address against allowed memory ranges. An attacker capable of supplying a crafted firmware file could exploit this vulnerability to perform invalid hardware register writes, potentially resulting in system instability or a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-1285 · Improper Validation of Specified Index, Position, or Offset in Input