CVE-2023-54227 Affecting kernel-abi-whitelists package, versions *


Severity

Recommended
low

Based on CentOS security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS8-KERNELABIWHITELISTS-14793239
  • published31 Dec 2025
  • disclosed30 Dec 2025

Introduced: 30 Dec 2025

NewCVE-2023-54227  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 kernel-abi-whitelists.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-abi-whitelists package and not the kernel-abi-whitelists package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

blk-mq: fix tags leak when shrink nr_hw_queues

Although we don't need to realloc set->tags[] when shrink nr_hw_queues, we need to free them. Or these tags will be leaked.

How to reproduce:

  1. mount -t configfs configfs /mnt
  2. modprobe null_blk nr_devices=0 submit_queues=8
  3. mkdir /mnt/nullb/nullb0
  4. echo 1 > /mnt/nullb/nullb0/power
  5. echo 4 > /mnt/nullb/nullb0/submit_queues
  6. rmdir /mnt/nullb/nullb0

In step 4, will alloc 9 tags (8 submit queues and 1 poll queue), then in step 5, new_nr_hw_queues = 5 (4 submit queues and 1 poll queue). At last in step 6, only these 5 tags are freed, the other 4 tags leaked.

CVSS Base Scores

version 3.1