CVE-2022-48716 ASoC: codecs: wcd938x: fix incorrect used of portid
An out-of-bounds write in the Linux kernel wcd938x codec driver allows attackers to corrupt memory, potentially causing crashes or code execution.
- 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-2022-48716?
CVE-2022-48716 is a high-severity memory corruption vulnerability in Linux kernel, published on 20 Jun 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: codecs: wcd938x: fix incorrect used of portid
Mixer controls have the channel id in mixer->reg, which is not same as port id. port id should be derived from chan_info array. So fix this. Without this, its possible that we could corrupt struct wcd938x_sdw_priv by accessing port_map array out of range with channel id instead of port id.
Weakness: CWE-400
Which versions are affected by CVE-2022-48716?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48716?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-48716 being exploited?
There is no known exploitation of CVE-2022-48716 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48716, GHSA-qc27-qr34-95w5, UBUNTU-CVE-2022-48716.