CVE-2026-43478 ASoC: codecs: rt1011: Use component to get the dapm context in spk_mode_put
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.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2026-43478, GHSA-vg95-jfx5-wh3m, UBUNTU-CVE-2026-43478.