CVE-2024-58092 nfsd: fix legacy client tracking initialization

Medium 5.5 Published Updated

A double initialization bug in the Linux kernel's NFS server triggers a kernel panic, causing a denial of service.

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-2024-58092?

CVE-2024-58092 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Apr 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:

nfsd: fix legacy client tracking initialization

Get rid of the nfsd4_legacy_tracking_ops->init() call in check_for_legacy_methods(). That will be handled in the caller (nfsd4_client_tracking_init()). Otherwise, we'll wind up calling nfsd4_legacy_tracking_ops->init() twice, and the second time we'll trigger the BUG_ON() in nfsd4_init_recdir().

Which versions are affected by CVE-2024-58092?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-58092?

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-2024-58092 being exploited?

There is no known exploitation of CVE-2024-58092 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-58092, DEBIAN-CVE-2024-58092, GHSA-382x-6jh5-7rh9, ROOT-OS-UBUNTU-2404-CVE-2024-58092, UBUNTU-CVE-2024-58092.

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