Memory Leak in Error Handling Path in tty: serial: 8250: serial_cs

Kernel Updated 02 Oct 2025

Summary

03/08/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1001384: tty: serial: 8250: serial_cs: Fix a memory leak in error handling path. Affects Kernel versions < cddee5c287e26f6b2ba5c0ffdfc3a846f2f10461. 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 tty: serial: 8250: serial_cs package is a component of the Linux Kernel, which is responsible for handling serial communication on systems. It provides support for serial devices using the 8250 UART controller. This vulnerability specifically affects the error handling path of the serial_cs module.

Vulnerability Detail

The vulnerability in tty: serial: 8250: serial_cs is related to a memory leak in the error handling path. When an error occurs during the execution of the serial_cs module, memory resources are not properly freed, leading to a memory leak. This can result in the gradual depletion of available memory, potentially causing system instability or denial of service. The vulnerability has been fixed in Linux Kernel version v4.19.198 by commit cddee5c287e26f6b2ba5c0ffdfc3a846f2f10461.

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 specific workaround mentioned for this vulnerability.

Conclusion

In conclusion, the tty: serial: 8250: serial_cs package in the Linux Kernel is vulnerable to a memory leak in the error handling path. This vulnerability can be fixed by updating the Linux Kernel to version v4.19.198 or later. No specific workaround has been provided. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →