CVE-2022-48632 i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction()
A stack overflow in the Linux kernel's i2c driver allows attackers to cause denial of service or potentially execute code via unchecked memory copies.
- 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-2022-48632?
CVE-2022-48632 is a high-severity memory corruption vulnerability in Linux kernel, published on 28 Apr 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:
i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction()
memcpy() is called in a loop while 'operation->length' upper bound is not checked and 'data_idx' also increments.
Weakness: CWE-787
Which versions are affected by CVE-2022-48632?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48632?
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-2022-48632 being exploited?
There is no known exploitation of CVE-2022-48632 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48632, GHSA-54qq-rr2g-7v9v, UBUNTU-CVE-2022-48632.