CVE-2024-46674 usb: dwc3: st: fix probed platform device ref count on probe error path
A use-after-free vulnerability in the Linux kernel's DWC3 USB driver allows attackers to cause denial of service or execute arbitrary code via improper reference counting on probe errors.
- 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-2024-46674?
CVE-2024-46674 is a high-severity use after free vulnerability in Linux kernel, published on 13 Sep 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:
usb: dwc3: st: fix probed platform device ref count on probe error path
The probe function never performs any paltform device allocation, thus error path "undo_platform_dev_alloc" is entirely bogus. It drops the reference count from the platform device being probed. If error path is triggered, this will lead to unbalanced device reference counts and premature release of device resources, thus possible use-after-free when releasing remaining devm-managed resources.
Weakness: CWE-416
Which versions are affected by CVE-2024-46674?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46674?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-46674 being exploited?
There is no known exploitation of CVE-2024-46674 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-49173, AZL-49230, BELL-CVE-2024-46674, DEBIAN-CVE-2024-46674, GHSA-r3gx-4wx6-8mr3, UBUNTU-CVE-2024-46674.