drm/mediatek: Fix ovl adaptor platform device leak
mtk_drm_probe() creates an OVL adaptor platform device with
platform_device_register_data() when the display pipeline requires the
OVL adaptor.
If a later initialization step fails, the probe error path releases
the DRM resources without unregistering the already registered OVL
adaptor device. The normal remove path likewise leaves the device
registered after the DRM driver is unbound.
Keep track of whether the OVL adaptor was successfully registered and
unregister it on probe failure. Also recover the platform device from
the stored DDP component device and unregister it during normal
removal.
The issue was identified by a static analysis tool I developed and
confirmed by manual review.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
|
|||||||||||||||||||||
| Linux | Linux | affected |
|
No data.
No data.
No data available yet.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
No advisories yet.
Sun, 18 Oct 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix ovl adaptor platform device leak mtk_drm_probe() creates an OVL adaptor platform device with platform_device_register_data() when the display pipeline requires the OVL adaptor. If a later initialization step fails, the probe error path releases the DRM resources without unregistering the already registered OVL adaptor device. The normal remove path likewise leaves the device registered after the DRM driver is unbound. Keep track of whether the OVL adaptor was successfully registered and unregister it on probe failure. Also recover the platform device from the stored DDP component device and unregister it during normal removal. The issue was identified by a static analysis tool I developed and confirmed by manual review. | |
| Title | drm/mediatek: Fix ovl adaptor platform device leak | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-10-18T15:48:19.567Z
Reserved: 2026-09-25T10:25:14.369Z
Link: CVE-2026-98782
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-18T16:17:32.163
Modified: 2026-10-18T16:17:32.163
Link: CVE-2026-98782
Redhat
No data.
OpenCVE Enrichment
No data.
No weakness.