CVE-2024-38611 media: i2c: et8ek8: Don't strip remove function when driver is builtin
A resource leak in the Linux kernel et8ek8 driver can lead to denial of service when the device is unbound while built-in.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-38611?
CVE-2024-38611 is a high-severity denial of service vulnerability in Linux kernel, published on 19 Jun 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In the Linux kernel, the following vulnerability has been resolved:
media: i2c: et8ek8: Don't strip remove function when driver is builtin
Using __exit for the remove function results in the remove callback being discarded with CONFIG_VIDEO_ET8EK8=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally.
This also fixes a W=1 modpost warning:
WARNING: modpost: drivers/media/i2c/et8ek8/et8ek8: section mismatch in reference: et8ek8_i2c_driver+0x10 (section: .data) -> et8ek8_remove (section: .exit.text)
Weakness: CWE-401
Which versions are affected by CVE-2024-38611?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-38611?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-38611 being exploited?
There is no known exploitation of CVE-2024-38611 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-38611, DEBIAN-CVE-2024-38611, GHSA-7576-jc69-87m3, UBUNTU-CVE-2024-38611.