# CVE-2026-64171 — Linux

> As of 2026-07-19, CVE-2026-64171 is a vulnerability in Linux, EPSS 0.1% (4.1th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-64171 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-2026-64171?

In the Linux kernel, the following vulnerability has been resolved: i2c: tegra: fix pm_runtime leak on mutex_lock failure If tegra_i2c_mutex_lock() fails, the function returns without calling pm_runtime_put(), leaking the runtime PM reference acquired by the preceding pm_runtime_get_sync(). This prevents the device from ever entering runtime suspend. Add the missing pm_runtime_put() before returning on lock failure.

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 4.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 0.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-19

## Is CVE-2026-64171 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-2026-64171

No vendor patch reference has been recorded for CVE-2026-64171 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-2026-64171

No threat campaign in the Threadlinqs corpus currently references CVE-2026-64171, 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/8f7ed203b39004c02479a9156089d87d1ac2c1d8)
- [git.kernel.org (57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb)](https://git.kernel.org/stable/c/57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-64171
Full detection coverage and IOCs for threats exploiting CVE-2026-64171 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp