CVE-2022-50006 NFSv4.2 fix problems with __nfs42_ssc_open
A flaw in the Linux kernel's NFSv4.2 implementation allows a remote attacker to cause a denial of service via improper filehandle validation and reference counting.
- 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-2022-50006?
CVE-2022-50006 is a medium-severity vulnerability in Linux kernel, published on 18 Jun 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:
NFSv4.2 fix problems with __nfs42_ssc_open
A destination server while doing a COPY shouldn't accept using the passed in filehandle if its not a regular filehandle.
If alloc_file_pseudo() has failed, we need to decrement a reference on the newly created inode, otherwise it leaks.
Which versions are affected by CVE-2022-50006?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50006?
Apply the vendor's patch.
Is CVE-2022-50006 being exploited?
There is no known exploitation of CVE-2022-50006 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50006, GHSA-2753-9vwc-54j2, UBUNTU-CVE-2022-50006.