What’s Vulnerable › Vulnerabilities

CVE-2022-49107: ceph: fix memory leak in ceph_readdir when note_last_dentry returns error

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-08-13
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: ceph: fix memory leak in ceph_readdir when note_last_dentry returns error Reset the last_readdir at the same time, and add a comment explaining why we don't free last_readdir when dir_emit returns false.

Affected products

• Linux kernel: before 5.10.111; from 5.11 before 5.15.34; from 5.16 before 5.16.20; from 5.17 before 5.17.3 — fixed in 5.10.111, 5.15.34, 5.16.20, 5.17.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.111, 5.15.34, 5.16.20, 5.17.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2fe82d3254029ef9ec4e7be890125d5ef4f537de
• https://git.kernel.org/stable/c/7f740ede35132d3d5d19747cad56a511d21bb156
• https://git.kernel.org/stable/c/e792575b902a3939ca482491ee9fb3a236f99640
• https://git.kernel.org/stable/c/f4429786129648a8f4bb1e5faa143c4478cc5c4a
• https://git.kernel.org/stable/c/f639d9867eea647005dc824e0e24f39ffc50d4e4

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