CVE-2022-48888 drm/msm/dpu: Fix memory leak in msm_mdss_parse_data_bus_icc_path

Medium 5.5 Published Updated

A memory leak in the Linux kernel's DPU driver can lead to resource exhaustion and denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2022-48888?

CVE-2022-48888 is a medium-severity denial of service vulnerability in Linux kernel, published on 21 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

drm/msm/dpu: Fix memory leak in msm_mdss_parse_data_bus_icc_path

of_icc_get() alloc resources for path1, we should release it when not need anymore. Early return when IS_ERR_OR_NULL(path0) may leak path1. Defer getting path1 to fix this.

Patchwork: https://patchwork.freedesktop.org/patch/514264/

Weakness: CWE-401

Which versions are affected by CVE-2022-48888?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-48888?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-48888 being exploited?

There is no known exploitation of CVE-2022-48888 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-48888, GHSA-5q4q-m5m5-mr8p, UBUNTU-CVE-2022-48888.

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