CVE-2026-43478 ASoC: codecs: rt1011: Use component to get the dapm context in spk_mode_put

Medium 5.5 Published Updated

A null pointer dereference in the Linux kernel's RT1011 audio codec driver can cause a system crash when accessing DAPM context incorrectly.

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-2026-43478?

CVE-2026-43478 is a medium-severity vulnerability in Linux kernel, published on 13 May 2026. 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:

ASoC: codecs: rt1011: Use component to get the dapm context in spk_mode_put

The correct helper to use in rt1011_recv_spk_mode_put() to retrieve the DAPM context is snd_soc_component_to_dapm(), from kcontrol we will receive NULL pointer.

Which versions are affected by CVE-2026-43478?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43478?

Apply the vendor's patch.

Is CVE-2026-43478 being exploited?

There is no known exploitation of CVE-2026-43478 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-43478, GHSA-vg95-jfx5-wh3m, UBUNTU-CVE-2026-43478.

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