---
id: CVE-2026-64171
title: 'i2c: tegra: fix pm_runtime leak on mutex_lock failure'
summary: |-
  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 re…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 6077cfd716fbd4d1f2a3702e49ae8bf65c072685 <
    8f7ed203b39004c02479a9156089d87d1ac2c1d8
  - >-
    Linux >= 6077cfd716fbd4d1f2a3702e49ae8bf65c072685 <
    57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb
  - Linux 7.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:30:58.140001Z'
published: '2026-07-19'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:34:27.698Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-64171'
references:
  - url: 'https://git.kernel.org/stable/c/8f7ed203b39004c02479a9156089d87d1ac2c1d8'
  - url: 'https://git.kernel.org/stable/c/57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb'
tags:
  - cve.org
epss: 0.00111
epssPercentile: 0.01313
ingestedAt: '2026-11-06T16:57:43.228Z'
---

## Overview

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.

## Affected

- `Linux >= 6077cfd716fbd4d1f2a3702e49ae8bf65c072685 < 8f7ed203b39004c02479a9156089d87d1ac2c1d8`
- `Linux >= 6077cfd716fbd4d1f2a3702e49ae8bf65c072685 < 57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb`
- `Linux 7.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.