CVE-2023-52583 ceph: fix deadlock or deadcode of misusing dget()

Medium 5.5 Published Updated

A deadlock in the Ceph filesystem code can cause a denial of service by hanging the kernel.

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-2023-52583?

CVE-2023-52583 is a medium-severity vulnerability in Debian Debian Linux, published on 6 Mar 2024. 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:

ceph: fix deadlock or deadcode of misusing dget()

The lock order is incorrect between denty and its parent, we should always make sure that the parent get the lock first.

But since this deadcode is never used and the parent dir will always be set from the callers, let's just remove it.

Weakness: CWE-667

Which versions are affected by CVE-2023-52583?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2023-52583?

Apply the vendor's patch.

Is CVE-2023-52583 being exploited?

There is no known exploitation of CVE-2023-52583 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as BELL-CVE-2023-52583, DEBIAN-CVE-2023-52583, GHSA-ppcf-3xhc-xrx9, UBUNTU-CVE-2023-52583.

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