CVE-2024-43896 ASoC: cs-amp-lib: Fix NULL pointer crash if efi.get_variable is NULL
A missing check for EFI variable support in the Linux kernel audio driver causes a null pointer dereference, leading to a system crash.
- 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-2024-43896?
CVE-2024-43896 is a medium-severity vulnerability in Linux kernel, published on 26 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:
ASoC: cs-amp-lib: Fix NULL pointer crash if efi.get_variable is NULL
Call efi_rt_services_supported() to check that efi.get_variable exists before calling it.
Weakness: CWE-476
Which versions are affected by CVE-2024-43896?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-43896?
Apply the vendor's patch.
Is CVE-2024-43896 being exploited?
There is no known exploitation of CVE-2024-43896 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-43896, DEBIAN-CVE-2024-43896, GHSA-w88v-q2mr-5mff, UBUNTU-CVE-2024-43896.