CVE-2026-64594: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-28fc-4vwx-pr32
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Advisory Summary

CVE-2026-64594 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-2026-64594 at a Glance

CVE Identifier CVE-2026-64594
GHSA Identifier GHSA-28fc-4vwx-pr32
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-2026-64594

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-2026-64594, 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: usb: gadget: f_fs: initialize reset_work at allocation time ffs_fs_kill_sb() unconditionally calls cancel_work_sync() on ffs->reset_work when a functionfs instance is unmounted: ffs_data_reset(ffs); cancel_work_sync(&ffs->reset_work); However ffs->reset_work is only ever initialized via INIT_WORK() in ffs_func_set_alt() and ffs_func_disable(), and only on the FFS_DEACTIVATED path. That state is reached solely by ffs_data_closed() when the instance is mounted with the "no_disconnect" option, so for the common case (no "no_disconnect", or mounted and unmounted without ever being deactivated) reset_work is never initialized. ffs_data_new() allocates the ffs_data with kzalloc_obj() and does not initialize reset_work, and ffs_data_reset()/ffs_data_clear() do not touch it either, so reset_work.func is left NULL. cancel_work_sync() on such a work then trips the WARN_ON(!work->func) guard in __flush_work(): WARNING: kernel/workqueue.c:4301 at __flush_work+0x330/0x360, CPU#3: umount Call trace: __flush_work cancel_work_sync ffs_fs_kill_sb [usb_f_fs] deactivate_locked_super deactivate_super cleanup_mnt __cleanup_mnt task_work_run exit_to_user_mode_loop el0_svc On older kernels cancel_work_sync() on a zero-initialized work struct was a silent no-op, which hid the missing initialization. Initialize reset_work once in ffs_data_new() so it is always valid for the lifetime of the ffs_data, and drop the now-redundant INIT_WORK() calls from the two deactivation paths.

References

NVD — CVE-2026-64594 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64594
git.kernel.org/stable/c/0de6ebbabf... WEB
https://git.kernel.org/stable/c/0de6ebbabfbbc9c28350283dc97d8a519d5c6dd7
git.kernel.org/stable/c/3137b243c9... WEB
https://git.kernel.org/stable/c/3137b243c93982fe3460335e12f9247739766e10
git.kernel.org/stable/c/69faa37792... WEB
https://git.kernel.org/stable/c/69faa3779250df14f51d5084f938a99809546e52
git.kernel.org/stable/c/7fe895e0a9... WEB
https://git.kernel.org/stable/c/7fe895e0a9651518c4fc082487da770ff9c14c7f
git.kernel.org/stable/c/ba1867999d... WEB
https://git.kernel.org/stable/c/ba1867999dbc4085e6d8c52ac5266005b8b2bf07
git.kernel.org/stable/c/c36393b0d1... WEB
https://git.kernel.org/stable/c/c36393b0d14e1e9783888f821ffe29381b8f46dc
git.kernel.org/stable/c/cb19e54ebe... WEB
https://git.kernel.org/stable/c/cb19e54ebe9baf3c3243083ade65c937339ccb7b
git.kernel.org/stable/c/d5631081be... WEB
https://git.kernel.org/stable/c/d5631081be07f20e764d3cb5c98ac0a1004fba51

Frequently Asked Questions

What is CVE-2026-64594?
CVE-2026-64594 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-2026-64594?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-64594?
CVE-2026-64594 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-64594?
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 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-28fc-4vwx-pr32",
  "modified" : "2026-08-06T09:30:33Z",
  "published" : "2026-08-06T09:30:33Z",
  "aliases" : [ "CVE-2026-64594" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_fs: initialize reset_work at allocation time\n\nffs_fs_kill_sb() unconditionally calls cancel_work_sync() on\nffs->reset_work when a functionfs instance is unmounted:\n\n\tffs_data_reset(ffs);\n\tcancel_work_sync(&ffs->reset_work);\n\nHowever ffs->reset_work is only ever initialized via INIT_WORK() in\nffs_func_set_alt() and ffs_func_disable(), and only on the\nFFS_DEACTIVATED path. That state is reached solely by ffs_data_closed()\nwhen the instance is mounted with the \"no_disconnect\" option, so for the\ncommon case (no \"no_disconnect\", or mounted and unmounted without ever\nbeing deactivated) reset_work is never initialized.\n\nffs_data_new() allocates the ffs_data with kzalloc_obj() and does not\ninitialize reset_work, and ffs_data_reset()/ffs_data_clear() do not touch\nit either, so reset_work.func is left NULL. cancel_work_sync() on such a\nwork then trips the WARN_ON(!work->func) guard in __flush_work():\n\n  WARNING: kernel/workqueue.c:4301 at __flush_work+0x330/0x360, CPU#3: umount\n  Call trace:\n   __flush_work\n   cancel_work_sync\n   ffs_fs_kill_sb [usb_f_fs]\n   deactivate_locked_super\n   deactivate_super\n   cleanup_mnt\n   __cleanup_mnt\n   task_work_run\n   exit_to_user_mode_loop\n   el0_svc\n\nOn older kernels cancel_work_sync() on a zero-initialized work struct was\na silent no-op, which hid the missing initialization.\n\nInitialize reset_work once in ffs_data_new() so it is always valid for\nthe lifetime of the ffs_data, and drop the now-redundant INIT_WORK()\ncalls from the two deactivation paths.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64594"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0de6ebbabfbbc9c28350283dc97d8a519d5c6dd7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3137b243c93982fe3460335e12f9247739766e10"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/69faa3779250df14f51d5084f938a99809546e52"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7fe895e0a9651518c4fc082487da770ff9c14c7f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ba1867999dbc4085e6d8c52ac5266005b8b2bf07"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c36393b0d14e1e9783888f821ffe29381b8f46dc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cb19e54ebe9baf3c3243083ade65c937339ccb7b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d5631081be07f20e764d3cb5c98ac0a1004fba51"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-06T08:16:34Z"
  }
}