NULL Pointer Dereference Affecting rv package, versions <0:5.14.0-427.13.1.el9_4


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-CENTOS9-RV-14305567
  • published10 Dec 2025
  • disclosed9 Dec 2025

Introduced: 9 Dec 2025

CVE-2023-53784  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:9 rv to version 0:5.14.0-427.13.1.el9_4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rv package and not the rv package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

drm: bridge: dw_hdmi: fix connector access for scdc

Commit 5d844091f237 ("drm/scdc-helper: Pimp SCDC debugs") changed the scdc interface to pick up an i2c adapter from a connector instead. However, in the case of dw-hdmi, the wrong connector was being used to pass i2c adapter information, since dw-hdmi's embedded connector structure is only populated when the bridge attachment callback explicitly asks for it.

drm-meson is handling connector creation, so this won't happen, leading to a NULL pointer dereference.

Fix it by having scdc functions access dw-hdmi's current connector pointer instead, which is assigned during the bridge enablement stage.

[narmstrong: moved Fixes tag before first S-o-b and added Reported-by tag]

CVSS Base Scores

version 3.1