CVE-2026-53079

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory leak occurs in the network scheduler when cleaning up the deferred list via the qdisc run end() function. If the root qdisc does not implement the TCQ F DEQUEUE DROPS flag, packets queued for freeing are not released and remain stranded on the child's local to free list. The issue is addressed by updating the qdisc dequeue drop() function to check the root qdisc for the TCQ F DEQUEUE DROPS flag; if present, the packet is appended to the root's to free list, otherwise, it is dropped immediately.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.