CVE-2026-97521: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-jgmg-x8vv-p7hr
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Advisory Summary

CVE-2026-97521 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-2026-97521 at a Glance

CVE Identifier CVE-2026-97521
GHSA Identifier GHSA-jgmg-x8vv-p7hr
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-2026-97521

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-2026-97521, 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: gfs2: fix quota init duplicate scan gfs2_quota_init() checks for duplicate quota_change IDs while holding qd_lock and the quota hash bucket bitlock. That path used gfs2_qd_search_bucket(), which takes a lockref reference via lockref_get_not_dead(). On PREEMPT_RT this may sleep, which is not allowed under the bucket bitlock, triggering "sleeping function called from invalid context". Use a no-ref bucket lookup in this path, then continue duplicate handling without taking a lockref there. Refactor gfs2_qd_search_bucket() to build on top of the no-ref helper so lookup traversal stays in one place. This patch fixes a bug reported by syzbot.

References

NVD — CVE-2026-97521 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-97521
git.kernel.org/stable/c/7fdcf16e5e... WEB
https://git.kernel.org/stable/c/7fdcf16e5e14e11028f5bcaa6d25075eb5e876a0
git.kernel.org/stable/c/812a766e2b... WEB
https://git.kernel.org/stable/c/812a766e2b0a8f4d094393fad13475c57f5f86db
git.kernel.org/stable/c/b99a1f0f18... WEB
https://git.kernel.org/stable/c/b99a1f0f18ee50445907f55069e88bcfd8947383

Frequently Asked Questions

What is CVE-2026-97521?
CVE-2026-97521 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-2026-97521?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-97521?
CVE-2026-97521 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-97521?
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-jgmg-x8vv-p7hr",
  "modified" : "2026-09-24T18:31:36Z",
  "published" : "2026-09-24T18:31:36Z",
  "aliases" : [ "CVE-2026-97521" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: fix quota init duplicate scan\n\ngfs2_quota_init() checks for duplicate quota_change IDs while holding\nqd_lock and the quota hash bucket bitlock. That path used\ngfs2_qd_search_bucket(), which takes a lockref reference via\nlockref_get_not_dead().\n\nOn PREEMPT_RT this may sleep, which is not allowed under the bucket\nbitlock, triggering \"sleeping function called from invalid context\".\n\nUse a no-ref bucket lookup in this path, then continue duplicate\nhandling without taking a lockref there.\n\nRefactor gfs2_qd_search_bucket() to build on top of the no-ref helper\nso lookup traversal stays in one place.\n\nThis patch fixes a bug reported by syzbot.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-97521"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7fdcf16e5e14e11028f5bcaa6d25075eb5e876a0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/812a766e2b0a8f4d094393fad13475c57f5f86db"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b99a1f0f18ee50445907f55069e88bcfd8947383"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T17:17:30Z"
  }
}