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

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-06 · updated 2026-08-15
Weakness: CWE-667

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.

Affected products

Debian Linux: 10.0
Linux kernel: before 4.19.307; from 4.20 before 5.4.269; from 5.5 before 5.10.210; from 5.11 before 5.15.149; from 5.16 before 6.1.77; from 6.2 before 6.6.16 — fixed in 4.19.307, 5.10.210, 5.15.149, 5.4.269, 6.1.77, 6.6.16

How to fix

Upgrade to a fixed version: Linux kernel 4.19.307, 5.10.210, 5.15.149, 5.4.269. Check the vendor advisory for mitigations.

References

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