CVE-2026-64521 Details
Description
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.
A deadlock vulnerability has been identified in the Linux kernel's pinctrl subsystem for Amlogic A4 SoCs. The issue arises when accessing the pinconf-pins sysfs node, as the pinconf_pins_show() function holds a mutex that is subsequently requested again by the platform driver, leading to a deadlock. This vulnerability affects the Linux kernel stable tree.
The vulnerability has been fixed in the Linux kernel. Users can download the patched version from the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
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Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
No affected product data is available for this CVE.
Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 25, 2026 | New CVE Received | kernel.org |