Linux Kernel up to 6.12.34/6.15.3/6.16-rc2 eth fbnic_mbx_map_msg double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 6.12.34/6.15.3/6.16-rc2. This vulnerability affects the function fbnic_mbx_map_msg of the component eth. The manipulation results in double free. This vulnerability was named CVE-2025-38341. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.34/6.15.3/6.16-rc2. It has been classified as critical. Affected is the function fbnic_mbx_map_msg of the component eth. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: avoid double free when failing to DMA-map FW msg The semantics are that caller of fbnic_mbx_map_msg() retains the ownership of the message on error. All existing callers dutifully free the page.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2025-38341 since 04/16/2025. 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 12/08/2025).

The vulnerability scanner Nessus provides a plugin with the ID 271193 (Ubuntu 24.04 LTS / 25.04 : Linux kernel (Azure) vulnerabilities (USN-7834-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.35, 6.15.4 or 6.16-rc3 eliminates this vulnerability. Applying the patch 670179265ad787b9dd8e701601914618b8927755/0a211e23852019ef55c70094524e87a944accbb5/5bd1bafd4474ee26f504b41aba11f3e2a1175b88 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 (271193), EUVD (EUVD-2025-20905) and CERT Bund (WID-SEC-2025-1522). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Dell Avamar
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 271193
Nessus Name: Ubuntu 24.04 LTS / 25.04 : Linux kernel (Azure) vulnerabilities (USN-7834-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.35/6.15.4/6.16-rc3
Patch: 670179265ad787b9dd8e701601914618b8927755/0a211e23852019ef55c70094524e87a944accbb5/5bd1bafd4474ee26f504b41aba11f3e2a1175b88

Timelineinfo

04/16/2025 CVE reserved
07/10/2025 +85 days Advisory disclosed
07/10/2025 +0 days VulDB entry created
12/08/2025 +151 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38341 (🔒)
GCVE (CVE): GCVE-0-2025-38341
GCVE (VulDB): GCVE-100-315978
EUVD: 🔒
CERT Bund: WID-SEC-2025-1522 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 07/10/2025 11:39
Updated: 12/08/2025 01:19
Changes: 07/10/2025 11:39 (58), 07/10/2025 15:39 (1), 10/11/2025 22:57 (7), 10/26/2025 02:28 (2), 11/02/2025 20:58 (1), 11/19/2025 00:29 (12), 12/08/2025 01:19 (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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