CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of fragment queues, where the fragment queue timer can be armed before the queue is properly published in the hash table. This can lead to a situation where a stale hash node remains after the queue is completed, potentially causing instability or denial of service. Organizations using Linux-based systems, particularly those relying on network fragmentation features, should prioritize addressing this issue to maintain system integrity and performance.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: inet: frags: publish queues before arming timer inet_frag_create() arms the fragment queue timer before inserting the queue into the fqdir rhashtable. If the namespace fragment timeout is zero or negative, the timer can run before the queue is published. The timer callback then marks the queue complete, tries to remove a node that is not in the hash table yet, and drops the anticipated hash reference. Creation can subsequently publish the completed queue without restoring that reference, leaving a stale hash node after the caller drops the remaining reference. Publish the queue first and arm the timer while holding the queue lock. This makes timer expiry wait until the queue is visible in the hash table, so inet_frag_kill() can remove the node and balance the hash reference.