CVE-2022-50333 fs: jfs: fix shift-out-of-bounds in dbDiscardAG
A shift-out-of-bounds error in the JFS filesystem allows attackers to cause a denial of service via crafted inputs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-50333?
CVE-2022-50333 is a high-severity vulnerability in Linux kernel, published on 15 Sep 2025. 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:
fs: jfs: fix shift-out-of-bounds in dbDiscardAG
This should be applied to most URSAN bugs found recently by syzbot, by guarding the dbMount. As syzbot feeding rubbish into the bmap descriptor.
Weakness: CWE-125
Which versions are affected by CVE-2022-50333?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50333?
Apply the vendor's patch.
Is CVE-2022-50333 being exploited?
There is no known exploitation of CVE-2022-50333 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50333, GHSA-x2qw-p796-x9v7, UBUNTU-CVE-2022-50333.