CVE-2023-54088
Unknown Unknown - Not Provided

Race Condition in Linux blk-cgroup Causing System Lockups

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: hold queue_lock when removing blkg->q_node When blkg is removed from q->blkg_list from blkg_free_workfn(), queue_lock has to be held, otherwise, all kinds of bugs(list corruption, hard lockup, ..) can be triggered from blkg_destroy_all().

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Meta Information

Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-07-06
AI Q&A
2025-12-24
EPSS Evaluated
2026-07-05
NVD
CVE-2023-54088
EUVD
EUVD-2023-60357

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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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 a lock called queue_lock when removing a block group (blkg) from a queue's blkg_list. Specifically, the queue_lock must be held during the removal process in the blkg_free_workfn() function. If it is not held, it can lead to various bugs such as list corruption and hard lockups triggered by blkg_destroy_all().

Impact Analysis

If exploited or triggered, this vulnerability can cause serious system stability issues including corruption of internal kernel data structures (list corruption) and system hangs or crashes (hard lockups). This can lead to denial of service or unpredictable behavior on affected Linux systems.

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