CVE-2026-98380: Software Security Vulnerability Vulnerability

UNKNOWN

Advisory Identifier: GHSA-j546-37mc-3c35

Published 2026-10-09

Advisory Summary

CVE-2026-98380 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-2026-98380 at a Glance

CVE Identifier CVE-2026-98380

GHSA Identifier GHSA-j546-37mc-3c35

Severity N/A

CVSS v3.1 Base Score N/A

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-10-09

Last Updated 2026-10-09

How to Fix CVE-2026-98380

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-2026-98380, 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: net/sched: reject IDR error pointers when deleting actions tcf_action_delete() drops the reference held by its lookup before calling tcf_idr_delete_index() with the saved action index. An unlocked classifier can remove that action and reserve the same IDR slot with ERR_PTR(-EBUSY) in between. tcf_idr_delete_index() only checks the lookup result for NULL. It therefore treats the reservation as a tc_action and dereferences tcfa_bindcnt. A hardware execution breakpoint was used to schedule the interleaving without changing the kernel source. KASAN reported this decoded trace: BUG: KASAN: null-ptr-deref in tca_action_gd+0x5b9/0x1010 Read of size 4 at addr 0000000000000010 by task poc/150 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002 RIP: tca_action_gd+0x5c0/0x1010: arch_atomic_read at arch/x86/include/asm/atomic.h:23 raw_atomic_read at include/linux/atomic/atomic-arch-fallback.h:457 atomic_read at include/linux/atomic/atomic-instrumented.h:33 tcf_idr_delete_index at net/sched/act_api.c:766 tcf_action_delete at net/sched/act_api.c:1859 tcf_del_notify at net/sched/act_api.c:2014 tca_action_gd at net/sched/act_api.c:2064 R13: 0000000000000010 R15: fffffffffffffff0 Kernel panic - not syncing: Fatal exception R15 contains ERR_PTR(-EBUSY), and adding the tcfa_bindcnt offset produces the address in R13. With the guard applied, the same reproducer returned -ENOENT without a KASAN report or panic. Treat error pointers as absent and return -ENOENT.

References

NVD — CVE-2026-98380 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-98380

git.kernel.org/stable/c/259caa711b... WEB

https://git.kernel.org/stable/c/259caa711b7688365676442e2fdb286b8aceaa80

git.kernel.org/stable/c/39b751a210... WEB

https://git.kernel.org/stable/c/39b751a210bf61a374afa82749afc7a77a08bf1d

git.kernel.org/stable/c/6bf076258a... WEB

https://git.kernel.org/stable/c/6bf076258aac4e0af69ef317656c31ce6444d647

git.kernel.org/stable/c/6c9f07bf88... WEB

https://git.kernel.org/stable/c/6c9f07bf8800171de2cd3f02815cebe1f4d45f2d

git.kernel.org/stable/c/968550a439... WEB

https://git.kernel.org/stable/c/968550a439f64bd1a6c0d88efb92e4f082f84a26

git.kernel.org/stable/c/a9551f2628... WEB

https://git.kernel.org/stable/c/a9551f26287debe6d8aa6e8841974661065b975f

git.kernel.org/stable/c/c82b797abe... WEB

https://git.kernel.org/stable/c/c82b797abe668d0b668601a93ba2c0b071a63574

git.kernel.org/stable/c/dd80a75198... WEB

https://git.kernel.org/stable/c/dd80a7519824b72c8fcfd3cc50cb93f7e2d90923

Frequently Asked Questions

What is CVE-2026-98380?

CVE-2026-98380 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-2026-98380?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What CWE is associated with CVE-2026-98380?

CVE-2026-98380 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-98380?

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-j546-37mc-3c35",
  "modified" : "2026-10-09T09:31:05Z",
  "published" : "2026-10-09T09:31:05Z",
  "aliases" : [ "CVE-2026-98380" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: reject IDR error pointers when deleting actions\n\ntcf_action_delete() drops the reference held by its lookup before calling\ntcf_idr_delete_index() with the saved action index.  An unlocked\nclassifier can remove that action and reserve the same IDR slot with\nERR_PTR(-EBUSY) in between.\n\ntcf_idr_delete_index() only checks the lookup result for NULL.  It\ntherefore treats the reservation as a tc_action and dereferences\ntcfa_bindcnt.  A hardware execution breakpoint was used to schedule the\ninterleaving without changing the kernel source.  KASAN reported this\ndecoded trace:\n\n  BUG: KASAN: null-ptr-deref in tca_action_gd+0x5b9/0x1010\n  Read of size 4 at addr 0000000000000010 by task poc/150\n  Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002\n  RIP: tca_action_gd+0x5c0/0x1010:\n    arch_atomic_read at arch/x86/include/asm/atomic.h:23\n    raw_atomic_read at include/linux/atomic/atomic-arch-fallback.h:457\n    atomic_read at include/linux/atomic/atomic-instrumented.h:33\n    tcf_idr_delete_index at net/sched/act_api.c:766\n    tcf_action_delete at net/sched/act_api.c:1859\n    tcf_del_notify at net/sched/act_api.c:2014\n    tca_action_gd at net/sched/act_api.c:2064\n  R13: 0000000000000010 R15: fffffffffffffff0\n  Kernel panic - not syncing: Fatal exception\n\nR15 contains ERR_PTR(-EBUSY), and adding the tcfa_bindcnt offset produces\nthe address in R13.  With the guard applied, the same reproducer returned\n-ENOENT without a KASAN report or panic.  Treat error pointers as absent\nand return -ENOENT.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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  }, {
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  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6bf076258aac4e0af69ef317656c31ce6444d647"
  }, {
    "type" : "WEB",
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/968550a439f64bd1a6c0d88efb92e4f082f84a26"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a9551f26287debe6d8aa6e8841974661065b975f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c82b797abe668d0b668601a93ba2c0b071a63574"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dd80a7519824b72c8fcfd3cc50cb93f7e2d90923"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-09T08:16:56Z"
  }
}

Advisory Metadata

Source ID: GHSA-j546-37mc-3c35
Schema Version: 1.4.0
Published: 2026-10-09 09:31
Last Modified: 2026-10-09 09:31
Database Record File: advisories/unreviewed/2026/10/GHSA-j546-37mc-3c35/GHSA-j546-37mc-3c35.json