CVE-2022-49071 drm/panel: ili9341: fix optional regulator handling

Medium 5.5 Published Updated

A null pointer dereference in the Linux kernel's ili9341 panel driver can cause a system crash when an optional regulator lookup fails.

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-2022-49071?

CVE-2022-49071 is a medium-severity vulnerability in Linux kernel, published on 26 Feb 2025. 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/panel: ili9341: fix optional regulator handling

If the optional regulator lookup fails, reset the pointer to NULL. Other functions such as mipi_dbi_poweron_reset_conditional() only do a NULL pointer check and will otherwise dereference the error pointer.

Weakness: CWE-476

Which versions are affected by CVE-2022-49071?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49071?

Apply the vendor's patch.

Is CVE-2022-49071 being exploited?

There is no known exploitation of CVE-2022-49071 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-49071, GHSA-73mr-q86f-ghmp, UBUNTU-CVE-2022-49071.

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