Linux Kernel up to 6.4.4 ionic denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.4.250/5.10.187/5.15.120/6.1.39/6.4.4 and classified as critical. The affected element is an unknown function of the component ionic. The manipulation leads to denial of service. This vulnerability is documented as CVE-2023-53994. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.4.250/5.10.187/5.15.120/6.1.39/6.4.4. It has been rated as critical. This issue affects an unknown part of the component ionic. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ionic: remove WARN_ON to prevent panic_on_warn Remove unnecessary early code development check and the WARN_ON that it uses. The irq alloc and free paths have long been cleaned up and this check shouldn't have stuck around so long.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2023-53994 since 12/24/2025. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 279963 (Linux Distros Unpatched Vulnerability : CVE-2023-53994), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.251, 5.10.188, 5.15.121, 6.1.40 or 6.4.5 eliminates this vulnerability. Applying the patch 4c7276a6daf7e13a6dd30b0347b3f2c7df4d40bb/f8cc4fd99a325505e15c3da95d6de266efd3d9b5/1417dd787a5e55b410a00a28231b0dcb19172457/dc470466753ad0dd3a8c48aaefa05a992c119b9c/daeaad114cb163ec51bcf14326cb7fe37d368459/abfb2a58a5377ebab717d4362d6180f901b6e5c1 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (279963) and CERT Bund (WID-SEC-2025-2920). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux

Productinfo

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 279963
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-53994

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.251/5.10.188/5.15.121/6.1.40/6.4.5
Patch: 4c7276a6daf7e13a6dd30b0347b3f2c7df4d40bb/f8cc4fd99a325505e15c3da95d6de266efd3d9b5/1417dd787a5e55b410a00a28231b0dcb19172457/dc470466753ad0dd3a8c48aaefa05a992c119b9c/daeaad114cb163ec51bcf14326cb7fe37d368459/abfb2a58a5377ebab717d4362d6180f901b6e5c1

Timelineinfo

12/24/2025 Advisory disclosed
12/24/2025 +0 days CVE reserved
12/24/2025 +0 days VulDB entry created
02/25/2026 +63 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53994 (🔒)
GCVE (CVE): GCVE-0-2023-53994
GCVE (VulDB): GCVE-100-338201
CERT Bund: WID-SEC-2025-2920 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/24/2025 15:28
Updated: 02/25/2026 08:45
Changes: 12/24/2025 15:28 (58), 12/24/2025 22:23 (7), 12/26/2025 06:25 (2), 01/30/2026 03:44 (1), 02/25/2026 08:45 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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