CVE-2022-50832 wifi: wilc1000: fix potential memory leak in wilc_mac_xmit()
A memory leak in the wilc1000 Wi-Fi driver allows attackers to cause a denial of service by exhausting kernel memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-50832?
CVE-2022-50832 is a denial of service vulnerability in Linux, published on 30 Dec 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:
wifi: wilc1000: fix potential memory leak in wilc_mac_xmit()
The wilc_mac_xmit() returns NETDEV_TX_OK without freeing skb, add dev_kfree_skb() to fix it. Compile tested only.
Which versions are affected by CVE-2022-50832?
How do I fix CVE-2022-50832?
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-2022-50832 being exploited?
There is no known exploitation of CVE-2022-50832 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50832, GHSA-6vvg-4gg9-mcq6, UBUNTU-CVE-2022-50832.