CVE-2026-99214
kernel: drm/vc4: hdmi: Move packet RAM enable to PM runtime
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 28, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's VideoCore IV (VC4) HDMI driver. When audio playback initializes before video output is restored, the driver attempts to write audio configuration data to packet memory while it is still powered off. A local user initiating audio operations during display connection changes can trigger this condition, resulting in kernel errors and a potential 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 · 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE-617 · Reachable Assertion