Linux Kernel up to 6.19-rc1 net vlan_del_fail_bmap out-of-bounds

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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2/6.19-rc1. It has been declared as critical. Affected by this vulnerability is the function vlan_del_fail_bmap of the component net. The manipulation results in out-of-bounds. This vulnerability was named CVE-2025-71112. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2/6.19-rc1. It has been classified as problematic. Affected is the function vlan_del_fail_bmap of the component net. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: net: hns3: add VLAN id validation before using Currently, the VLAN id may be used without validation when receive a VLAN configuration mailbox from VF. The length of vlan_del_fail_bmap is BITS_TO_LONGS(VLAN_N_VID). It may cause out-of-bounds memory access once the VLAN id is bigger than or equal to VLAN_N_VID. Therefore, VLAN id needs to be checked to ensure it is within the range of VLAN_N_VID.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-71112 since 01/13/2026. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 298928 (SUSE SLES15 : Recommended update for initial livepatch (SUSE-SU-2026:0474-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.160, 6.6.120, 6.12.64, 6.18.3 or 6.19-rc2 eliminates this vulnerability. Applying the patch 00e56a7706e10b3d00a258d81fcb85a7e96372d6/b7b4f3bf118f51b67691a55b464f04452e5dc6fc/95cca255a7a5ad782639ff0298c2a486707d1046/91a51d01be5c9f82c12c2921ca5cceaa31b67128/6ef935e65902bfed53980ad2754b06a284ea8ac1 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 (298928) and CERT Bund (WID-SEC-2026-0119). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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: 298928
Nessus Name: SUSE SLES15 : Recommended update for initial livepatch (SUSE-SU-2026:0474-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.160/6.6.120/6.12.64/6.18.3/6.19-rc2
Patch: 00e56a7706e10b3d00a258d81fcb85a7e96372d6/b7b4f3bf118f51b67691a55b464f04452e5dc6fc/95cca255a7a5ad782639ff0298c2a486707d1046/91a51d01be5c9f82c12c2921ca5cceaa31b67128/6ef935e65902bfed53980ad2754b06a284ea8ac1

Timelineinfo

01/13/2026 CVE reserved
01/14/2026 +1 days Advisory disclosed
01/14/2026 +0 days VulDB entry created
07/16/2026 +183 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71112 (🔒)
GCVE (CVE): GCVE-0-2025-71112
GCVE (VulDB): GCVE-100-341088
CERT Bund: WID-SEC-2026-0119 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/14/2026 17:47
Updated: 07/16/2026 04:54
Changes: 01/14/2026 17:47 (59), 01/16/2026 03:15 (7), 02/13/2026 19:36 (2), 03/09/2026 05:29 (1), 03/25/2026 21:51 (11), 07/16/2026 04:54 (1)
Complete: 🔍
Cache ID: 216::103

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