PT-2026-64742 · Linux+1 · Linux Kernel+1
CVE-2026-64521
·
Published
2026-07-25
·
Updated
2026-09-07
None
No severity ratings or metrics are available. When they are, we'll update the corresponding info on the page.
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A deadlock can occur when accessing the pinconf-pins sysfs node. This happens because the
pinconf pins show() function holds the pctldev->mutex, and the platform driver subsequently calls pinctrl find gpio range from pin(), which attempts to acquire the same mutex again.Recommendations
Replace the call to
pinctrl find gpio range from pin() with pinctrl find gpio range from pin nolock() to prevent the deadlock.Exploit
Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Linux Kernel
Ubuntu