Missing Release of Resource after Effective Lifetime Affecting kernel-debug-devel-matched package, versions *


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELDEBUGDEVELMATCHED-14763239
  • published31 Dec 2025
  • disclosed30 Dec 2025

Introduced: 30 Dec 2025

CVE-2023-54227  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 kernel-debug-devel-matched.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel-matched package and not the kernel-debug-devel-matched package as distributed by Centos. See How to fix? for Centos:9 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