PT-2026-2600 · Linux+2 · Linux Kernel+2
Published
2026-01-13
·
Updated
2026-06-16
·
CVE-2025-71079
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A deadlock situation can occur between
nfc unregister device() and rfkill fop write() functions due to an inversion of lock ordering between device lock and rfkill global mutex. Specifically, Thread A (rfkill fop write) attempts to acquire rfkill global mutex while Thread B (nfc unregister device) attempts to acquire device lock, leading to a classic ABBA deadlock scenario. The issue arises from the order in which locks are acquired during device unregistration and rfkill operations. The fix involves moving rfkill unregister() and rfkill destroy() outside the device lock critical section to prevent the deadlock.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu