CVE-2026-43373
Description
A flaw was found in the Linux kernel, specifically within the Network Controller Sideband Interface (NCSI) subsystem. This vulnerability occurs in the NCSI RX and Asynchronous Event Notification (AEN) handlers, where early return paths fail to release received socket buffers (skb) when processing invalid packets or failing to resolve NCSI devices or handlers. This oversight can lead to a memory leak, potentially resulting in a Denial of Service (DoS) condition for the affected system.
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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