Search: CVE-2025-21812

A locking dependency vulnerability in the Linux kernel's ax25 network subsystem has been resolved. The issue involved a circular locking dependency between rtnl_mutex and sk_lock-AF_AX25 in the ax25_setsockopt() function, which could lead to deadlocks and potential use-after-free conditions. This flaw was identified by syzbot and affects specific linux-aws kernel versions. The vulnerability has been fixed in updated kernel releases as part of a broader security update addressing multiple kernel subsystems.