Vulnerability 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.
References
- https://git.kernel.org/stable/c/744ac926c0e55267a10b49b5b72582afef4ad49f
- https://git.kernel.org/stable/c/e72ce029810390eb987a036fb2c8a5da9a23b685
- https://git.kernel.org/stable/c/e917713f013423069782ff554935c7a5d4266783
FAQ
What is CVE-2026-64521?
CVE-2026-64521 is a documented vulnerability. 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 pctl...
How severe is CVE-2026-64521?
CVSS scoring is not yet available for CVE-2026-64521. Check NVD for updates.
Is there a patch for CVE-2026-64521?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.