Review reviewHigh

CVE-2023-53572

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: clk: imx: scu: use _safe list iterator to avoid a use after free This loop is freeing "clk" so it needs to use list_for_each_entry_safe(). Otherwise it dereferences a freed variable to get the next item on the loop.

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2025.10.05
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: clk: imx: scu: use _safe list iterator to avoid a use after free This loop is freeing "clk" so it needs to use list_for_each_entry_safe(). Otherwise it dereferences a freed variable to get the next item on the loop.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 77d8f3068c63ee0983f0b5ba3207d3f7cce11be4 < f95ff838ac39f861d1f95a0f3bbb1e01c2517d79, >= 77d8f3068c63ee0983f0b5ba3207d3f7cce11be4 < 08cc7cd2c2a29a2abf5bceb8f048c0734d3694ba, >= 77d8f3068c63ee0983f0b5ba3207d3f7cce11be4 < 3d90921f91fc6a8c801d527bb5848c99e335c1cf, >= 77d8f3068c63ee0983f0b5ba3207d3f7cce11be4 < 0a719f0e4b6f233979e219baff73923e76a96e09, >= 77d8f3068c63ee0983f0b5ba3207d3f7cce11be4 < 632c60ecd25dbacee54d5581fe3aeb834b57010a, >= 5.11, >= 5.11 < 5.15.121, >= 5.16 < 6.1.39, >= 6.2 < 6.3.13, >= 6.4 < 6.4.4
Fixed versions
5.15.121, 6.1.39, 6.3.13, 6.4.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416