CVE-2024-42092 gpio: davinci: Validate the obtained number of IRQs
A missing validation in the Davinci GPIO driver allows out-of-bounds memory access via malformed Device Tree data, potentially causing 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-2024-42092?
CVE-2024-42092 is a high-severity vulnerability in Linux kernel, published on 29 Jul 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:
gpio: davinci: Validate the obtained number of IRQs
Value of pdata->gpio_unbanked is taken from Device Tree. In case of broken DT due to any error this value can be any. Without this value validation there can be out of chips->irqs array boundaries access in davinci_gpio_probe().
Validate the obtained nirq value so that it won't exceed the maximum number of IRQs per bank.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Weakness: CWE-129
Which versions are affected by CVE-2024-42092?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42092?
Apply the vendor's patch.
Is CVE-2024-42092 being exploited?
There is no known exploitation of CVE-2024-42092 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-42092, DEBIAN-CVE-2024-42092, GHSA-v9jh-p7m3-3577, UBUNTU-CVE-2024-42092.