CVE-2025-37983 qibfs: fix _another_ leak
A memory leak in the Linux kernel qibfs filesystem can lead to resource exhaustion and denial of service under low memory conditions.
- 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-2025-37983?
CVE-2025-37983 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 20 May 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:
qibfs: fix _another_ leak
failure to allocate inode => leaked dentry...
this one had been there since the initial merge; to be fair, if we are that far OOM, the odds of failing at that particular allocation are low...
Weakness: CWE-401
Which versions are affected by CVE-2025-37983?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-37983?
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-2025-37983 being exploited?
There is no known exploitation of CVE-2025-37983 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2025-37983, DEBIAN-CVE-2025-37983, GHSA-mmcp-jrf9-g4j3, ROOT-OS-DEBIAN-11-CVE-2025-37983, ROOT-OS-UBUNTU-2204-CVE-2025-37983, ROOT-OS-UBUNTU-2404-CVE-2025-37983 and 1 more.