---
cve: "CVE-2026-64521"
severity: "LOW"
cvss: 3.1
epss: "17%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-07-25 10:17:38"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T04:38:44+02:00"
---

# CVE-2026-64521

> 3.1 LOW

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

pinctrl: meson: amlogic-a4: fix deadlock issue

Accessing the pinconf-pins sysfs node may deadlock.

pinconf_pins_show() holds pctldev->mutex, and the platform driver
calls pinctrl_find_gpio_range_from_pin(), which tries to acquire
the same mutex again, leading to a deadlock.

Use pinctrl_find_gpio_range_from_pin_nolock() to fix this issue.

## Patch verfügbar (OSV)

- Kernel ≥ 6.18.34
- Kernel ≥ 7.0.11

## Referenzen

- <https://git.kernel.org/stable/c/e917713f013423069782ff554935c7a5d4266783>
- <https://git.kernel.org/stable/c/744ac926c0e55267a10b49b5b72582afef4ad49f>
- <https://git.kernel.org/stable/c/e72ce029810390eb987a036fb2c8a5da9a23b685>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-64521) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_