Refcount Leak in drm/msm/mdp4

Kernel Updated 02 Oct 2025

Summary

31/07/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1004746: drm/msm/mdp4: Fix refcount leak in mdp4_modeset_init_intf. Affects Kernel versions >= 86418f90a4c1a0073db65d8a1e2bf94421117a60, < d1592d3e362cc59b29f15019707b16c695d70ca3. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or Browse

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats

SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml

Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile

Javascript package-lock.json · yarn.lock · pnpm-lock.yaml

PHP composer.lock

Python poetry.lock · requirements.txt · Pipfile.lock

Go go.mod

Rust Cargo.lock

Ruby Gemfile.lock

Dart pubspec.lock

C/C++ conan.lock

Elixir mix.lock

Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Background

The drm/msm/mdp4 package is a component of the Linux Kernel that provides support for the display subsystem on Qualcomm Snapdragon SoCs. It includes the MDP4 (Mobile Display Processor 4) driver, which is responsible for managing the display interfaces and modesetting operations. The vulnerability in question is a refcount leak in the mdp4_modeset_init_intf function.

Vulnerability Detail

The refcount leak vulnerability in mdp4_modeset_init_intf can lead to a resource leak, potentially resulting in a denial of service (DoS) condition or memory exhaustion. The issue arises when the function fails to properly release a reference count on a display interface, causing the count to increment indefinitely. An attacker could exploit this vulnerability by repeatedly triggering the affected code path, leading to resource exhaustion and system instability.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the Linux Kernel to the recommended version.

Conclusion

The refcount leak vulnerability in drm/msm/mdp4 can lead to resource exhaustion and system instability. It is crucial to update the Linux Kernel to version v5.4.202 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →