CVE-2022-49310 char: xillybus: fix a refcount leak in cleanup_dev()
A reference count leak in the Xillybus driver can lead to resource exhaustion and denial of service in the Linux kernel.
- 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-2022-49310?
CVE-2022-49310 is a medium-severity memory corruption vulnerability in Linux kernel, published on 26 Feb 2025. 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:
char: xillybus: fix a refcount leak in cleanup_dev()
usb_get_dev is called in xillyusb_probe. So it is better to call usb_put_dev before xdev is released.
Which versions are affected by CVE-2022-49310?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49310?
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-2022-49310 being exploited?
There is no known exploitation of CVE-2022-49310 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49310, GHSA-f7q7-fjw5-wrf4, UBUNTU-CVE-2022-49310.