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

ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup()

devm_kzalloc() may fail, clk_data->name might be NULL and will
cause a NULL pointer dereference later.

[ rjw: Subject and changelog edits ]

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00022.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
7fdb98e8a768b3ccc05494d3ea4436047f512b9d affected < 79ca94bc3e8cc3befa883c7d30b30a27ef0ea386
7fdb98e8a768b3ccc05494d3ea4436047f512b9d affected < 8a632ff6a2bea49993002b4c46092a2aea625840
7fdb98e8a768b3ccc05494d3ea4436047f512b9d affected < 4dea41775d951ff1f7b472a346a8ca3ae7e74455
Linux Linux affected
Version Status Constraints
5.17 affected —
0 unaffected < 5.17
6.1.30 unaffected ≤ 6.1.*
6.3.4 unaffected ≤ 6.3.*
6.4 unaffected ≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/4dea41775d951ff1f7b472a346a8ca3ae7e74455 cve-icon cve-icon
https://git.kernel.org/stable/c/79ca94bc3e8cc3befa883c7d30b30a27ef0ea386 cve-icon cve-icon
https://git.kernel.org/stable/c/8a632ff6a2bea49993002b4c46092a2aea625840 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025100113-CVE-2023-53483-cf50@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53483 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53483 cve-icon
History

Fri, 23 Jan 2026 02:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Mon, 05 Jan 2026 10:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Thu, 02 Oct 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Thu, 02 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Wed, 01 Oct 2025 12:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup() devm_kzalloc() may fail, clk_data->name might be NULL and will cause a NULL pointer dereference later. [ rjw: Subject and changelog edits ]
Title ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup()
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-05T10:20:54.718Z

Reserved: 2025-10-01T11:39:39.402Z

Link: CVE-2023-53483

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2025-10-01T12:15:51.027

Modified: 2026-01-23T02:07:43.930

Link: CVE-2023-53483

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-01T00:00:00Z

Links: CVE-2023-53483 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-02T08:39:45Z

Weaknesses