CVE-2023-54128
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BaseFortify

Publication date: 2025-12-24

Last updated on: 2025-12-29

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: fs: drop peer group ids under namespace lock When cleaning up peer group ids in the failure path we need to make sure to hold on to the namespace lock. Otherwise another thread might just turn the mount from a shared into a non-shared mount concurrently.
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Meta Information
Published
2025-12-24
Last Modified
2025-12-29
Generated
2026-06-16
AI Q&A
2025-12-24
EPSS Evaluated
2026-06-15
NVD
CVE-2023-54128
EUVD
EUVD-2023-60317
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel involves improper handling of peer group IDs during cleanup in failure paths. Specifically, the code fails to hold the namespace lock while dropping peer group IDs, which can lead to a race condition where another thread might concurrently change a mount from shared to non-shared, causing inconsistent or unexpected behavior.

Impact Analysis

The vulnerability can lead to race conditions in the Linux kernel's filesystem management, potentially causing inconsistent mount states. This may result in system instability, unexpected behavior in filesystem operations, or security issues related to mount namespace isolation.

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