CVE-2026-53079
Description
A flaw was found in the Linux kernel's networking scheduler (net_sched). When the network stack cleans up deferred packet lists, if the root queueing discipline (qdisc) does not implement the TCQ_F_DEQUEUE_DROPS flag, packets intended for release are not freed. This can lead to a memory leak, potentially resulting in a Denial of Service (DoS) due to resource exhaustion.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Other); DoS: Resource Consumption (Memory); DoS: Resource Consumption (CPU)
An attacker that can influence the allocation of resources that are not properly released could deplete the available resource pool and prevent all other processes from accessing the same type of resource. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.
Frequently Asked Questions
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