Linux Kernel up to 6.4.11 mmc_add_host return value

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.4.11. Impacted is the function mmc_add_host. The manipulation results in return value. This vulnerability is known as CVE-2023-54204. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.4.11. Affected is the function mmc_add_host. The manipulation with an unknown input leads to a return value vulnerability. CWE is classifying the issue as CWE-252. The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: mmc: sunplus: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, 1. the memory allocated in mmc_alloc_host() will be leaked 2. null-ptr-deref will happen when calling mmc_remove_host() in remove function spmmc_drv_remove() because deleting not added device. Fix this by checking the return value of mmc_add_host(). Moreover, I fixed the error handling path of spmmc_drv_probe() to clean up.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2023-54204 since 12/30/2025. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/26/2026).

The vulnerability scanner Nessus provides a plugin with the ID 281713 (Linux Distros Unpatched Vulnerability : CVE-2023-54204), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.4.12 eliminates this vulnerability. Applying the patch 741a951f41929f39cae70c66d86d0754d3129d0a/dce6d8f985fa1ef5c2af47f4f86ea65511b78656 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 (281713) and CERT Bund (WID-SEC-2025-2941). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • IBM Power Hardware Management Console
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • IBM DataPower Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Return value
CWE: CWE-252 / CWE-253
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: 281713
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-54204

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.4.12
Patch: 741a951f41929f39cae70c66d86d0754d3129d0a/dce6d8f985fa1ef5c2af47f4f86ea65511b78656

Timelineinfo

12/30/2025 Advisory disclosed
12/30/2025 +0 days CVE reserved
12/30/2025 +0 days VulDB entry created
04/26/2026 +117 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-54204 (🔒)
GCVE (CVE): GCVE-0-2023-54204
GCVE (VulDB): GCVE-100-338970
CERT Bund: WID-SEC-2025-2941 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/30/2025 16:46
Updated: 04/26/2026 16:23
Changes: 12/30/2025 16:46 (58), 01/01/2026 07:31 (7), 01/06/2026 07:22 (2), 04/26/2026 16:23 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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