n the Linux kernel, the following vulnerability has been resolved: drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached The MediaTek DisplayPort interface bridge driver starts its interrupts as soon as its probed. However when the interrupts trigger the bridge might not have been attached to a DRM device. As drm_helper_hpd_irq_event() does not check whether the passed in drm_device is valid or not, a NULL pointer passed in results in a kernel NULL pointer dereference in it. Check whether the bridge is attached and only trigger an HPD event if it is.
Configuration 1 (hide)
|
11 Dec 2025, 18:20
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-476 | |
| References | () https://git.kernel.org/stable/c/3551789d0635dfb2df8ab8e7fdbf0647e9c1724c - Patch | |
| References | () https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539 - Patch | |
| References | () https://git.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0b - Patch | |
| References | () https://git.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed - Patch |
19 Sep 2025, 16:00
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2025-09-18 14:15
Updated : 2026-01-14 19:16
NVD link : CVE-2023-53389
Mitre link : CVE-2023-53389
CVE.ORG link : CVE-2023-53389
JSON object : View
NULL Pointer Dereference