CVE-2024-26593 i2c: i801: Fix block process call transactions
A missing buffer index reset in the i801 I2C driver allows attackers to read incorrect data from the block buffer, potentially exposing sensitive information.
- 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-2024-26593?
CVE-2024-26593 is a high-severity vulnerability in Linux kernel, published on 23 Feb 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: i801: Fix block process call transactions
According to the Intel datasheets, software must reset the block buffer index twice for block process call transactions: once before writing the outgoing data to the buffer, and once again before reading the incoming data from the buffer.
The driver is currently missing the second reset, causing the wrong portion of the block buffer to be read.
Weakness: CWE-125
Which versions are affected by CVE-2024-26593?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-26593?
Apply the vendor's patch.
Is CVE-2024-26593 being exploited?
There is no known exploitation of CVE-2024-26593 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-26593, DEBIAN-CVE-2024-26593, GHSA-7pp5-c4g8-xxc4, UBUNTU-CVE-2024-26593.