# CVE-2026-64185 — Linux

> As of 2026-07-19, CVE-2026-64185 is a vulnerability in Linux, EPSS 0.1% (6.4th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-64185 as of 2026-07-19; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-19

## What is CVE-2026-64185?

In the Linux kernel, the following vulnerability has been resolved: sysfs: don't remove existing directory on update failure When sysfs_update_group() is called for a named group and create_files() fails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on the group directory. In the update path, kn was obtained via kernfs_find_and_get() and refers to a directory that already existed before this call. Removing it silently destroys a sysfs group that the caller did not create. Only remove the directory if we created it ourselves. On update failure the directory remains as it is left empty by remove_files() inside create_files(), but can be repopulated by a retry.

1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 78 days ago.

## Severity and exploitation probability

- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 6.4% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 0.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-19

## Is CVE-2026-64185 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Linux](https://intel.threadlinqs.com/vendors/linux): Linux

## How to fix CVE-2026-64185

No vendor patch reference has been recorded for CVE-2026-64185 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-64185

No threat campaign in the Threadlinqs corpus currently references CVE-2026-64185, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-07-21. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [git.kernel.org](https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d)
- [git.kernel.org (ccadd32cc1263802a5969c9efe0e96225450428c)](https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c)
- [git.kernel.org (14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a)](https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a)
- [git.kernel.org (31527d80234caf83dc96ad478645e57df9de4472)](https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472)
- [git.kernel.org (57b285e0368290aa55f79ba11419b96d0ebdb418)](https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418)

_Showing 5 of 8 recorded references._

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-64185
Full detection coverage and IOCs for threats exploiting CVE-2026-64185 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp