CVE-2022-48927 iio: adc: tsc2046: fix memory corruption by preventing array overflow
A memory corruption vulnerability in the Linux kernel TSC2046 ADC driver allows attackers to potentially execute code or escalate privileges via array overflow.
- 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-2022-48927?
CVE-2022-48927 is a high-severity memory corruption vulnerability in Linux kernel, published on 22 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:
iio: adc: tsc2046: fix memory corruption by preventing array overflow
On one side we have indio_dev->num_channels includes all physical channels + timestamp channel. On other side we have an array allocated only for physical channels. So, fix memory corruption by ARRAY_SIZE() instead of num_channels variable.
Note the first case is a cleanup rather than a fix as the software timestamp channel bit in active_scanmask is never set by the IIO core.
Weakness: CWE-787
Which versions are affected by CVE-2022-48927?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48927?
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-2022-48927 being exploited?
There is no known exploitation of CVE-2022-48927 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48927, GHSA-f8v3-3x87-4mpx, UBUNTU-CVE-2022-48927.