CVE-2026-80925: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-rp2g-gfw2-xg88
Share
Published
Advisory Summary

CVE-2026-80925 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80925 at a Glance

CVE Identifier CVE-2026-80925
GHSA Identifier GHSA-rp2g-gfw2-xg88
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-80925

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-80925, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: vlan: fix skb_under_panic and races when toggling HW VLAN offload Toggling hardware VLAN TX offload (NETIF_F_HW_VLAN_CTAG_TX or NETIF_F_HW_VLAN_STAG_TX) on a lower device invokes vlan_transfer_features(), which dynamically changed vlandev->hard_header_len. This causes two issues: 1. Lockless TX paths (e.g. packet_snd in af_packet.c, ip6_finish_output2) read dev->hard_header_len without holding RTNL lock. Mutating hard_header_len dynamically under RTNL creates a data race where upper layers reserve insufficient headroom based on a stale hard_header_len, resulting in skb_under_panic when vlan_dev_hard_header() is called. 2. In addition, vlan_transfer_features() updated hard_header_len without updating header_ops, causing a mismatch between allocated headroom and header creation. Always setting dev->hard_header_len = real_dev->hard_header_len and dev->needed_headroom = real_dev->needed_headroom + VLAN_HLEN unconditionally ensures: - dev->hard_header_len remains 100% static and immutable at real_dev->hard_header_len, eliminating all dynamic runtime updates and data races on hard_header_len. - Upper layers allocating skbs via LL_RESERVED_SPACE() will always reserve sufficient headroom for software VLAN tag insertion (real_dev->hard_header_len + real_dev->needed_headroom + VLAN_HLEN). - vlandev inherits real_dev->needed_tailroom so underlying trailer/padding/ICV requirements are honored. - AF_PACKET SOCK_RAW network header offsets remain correctly aligned at real_dev->hard_header_len. - vlan_header_ops is used unconditionally. Note to stable teams: Make sure to backport these commits: e16e960d55a4 ("ipvlan: inherit needed_headroom and needed_tailroom from phy_dev") cef51860becd ("macvlan: inherit needed_headroom and needed_tailroom from lowerdev")

References

NVD — CVE-2026-80925 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80925
git.kernel.org/stable/c/1517d1996b... WEB
https://git.kernel.org/stable/c/1517d1996b5236fe69eccd9d253f725e06996eb1
git.kernel.org/stable/c/447cbe95eb... WEB
https://git.kernel.org/stable/c/447cbe95ebb95392b5d8f6a01c0556826919ce23
git.kernel.org/stable/c/a29f3b884b... WEB
https://git.kernel.org/stable/c/a29f3b884ba50217e6f50414f568073221e2bb07
git.kernel.org/stable/c/b30fe4de28... WEB
https://git.kernel.org/stable/c/b30fe4de285b9bdaf9508740191f69f7cd83b8fa
git.kernel.org/stable/c/b38d7a4bc9... WEB
https://git.kernel.org/stable/c/b38d7a4bc9c17e1d437696da25f9fbc286614d9d

Frequently Asked Questions

What is CVE-2026-80925?
CVE-2026-80925 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-80925?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80925?
CVE-2026-80925 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80925?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-rp2g-gfw2-xg88",
  "modified" : "2026-10-03T12:31:05Z",
  "published" : "2026-09-09T18:32:05Z",
  "aliases" : [ "CVE-2026-80925" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvlan: fix skb_under_panic and races when toggling HW VLAN offload\n\nToggling hardware VLAN TX offload (NETIF_F_HW_VLAN_CTAG_TX or\nNETIF_F_HW_VLAN_STAG_TX) on a lower device invokes vlan_transfer_features(),\nwhich dynamically changed vlandev->hard_header_len.\n\nThis causes two issues:\n1. Lockless TX paths (e.g. packet_snd in af_packet.c, ip6_finish_output2)\n   read dev->hard_header_len without holding RTNL lock. Mutating\n   hard_header_len dynamically under RTNL creates a data race where upper\n   layers reserve insufficient headroom based on a stale hard_header_len,\n   resulting in skb_under_panic when vlan_dev_hard_header() is called.\n2. In addition, vlan_transfer_features() updated hard_header_len without\n   updating header_ops, causing a mismatch between allocated headroom\n   and header creation.\n\nAlways setting dev->hard_header_len = real_dev->hard_header_len and\ndev->needed_headroom = real_dev->needed_headroom + VLAN_HLEN unconditionally\nensures:\n- dev->hard_header_len remains 100% static and immutable at real_dev->hard_header_len,\n  eliminating all dynamic runtime updates and data races on hard_header_len.\n- Upper layers allocating skbs via LL_RESERVED_SPACE() will always reserve\n  sufficient headroom for software VLAN tag insertion (real_dev->hard_header_len +\n  real_dev->needed_headroom + VLAN_HLEN).\n- vlandev inherits real_dev->needed_tailroom so underlying trailer/padding/ICV\n  requirements are honored.\n- AF_PACKET SOCK_RAW network header offsets remain correctly aligned at\n  real_dev->hard_header_len.\n- vlan_header_ops is used unconditionally.\n\nNote to stable teams: Make sure to backport these commits:\n\ne16e960d55a4 (\"ipvlan: inherit needed_headroom and needed_tailroom from phy_dev\")\ncef51860becd (\"macvlan: inherit needed_headroom and needed_tailroom from lowerdev\")",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80925"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1517d1996b5236fe69eccd9d253f725e06996eb1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/447cbe95ebb95392b5d8f6a01c0556826919ce23"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a29f3b884ba50217e6f50414f568073221e2bb07"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b30fe4de285b9bdaf9508740191f69f7cd83b8fa"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b38d7a4bc9c17e1d437696da25f9fbc286614d9d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-09T17:17:47Z"
  }
}