SEPTEMBER 15, 2026
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Case File

CVE-2026-80694

CRITICAL · CVSS 9.8 EPSS 0.46%

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

A vulnerability in the Linux kernel affects the mtk_poll_controller function, which incorrectly passes a net_device pointer instead of the expected struct mtk_eth pointer to mtk_handle_irq_rx. This misconfiguration can lead to a system crash when the CONFIG_NET_POLL_CONTROLLER option is enabled. Linux system administrators and developers working with affected Ethernet drivers should prioritize addressing this issue to prevent potential service disruptions.

CVE
CVE-2026-80694
Severity
CRITICAL
CVSS
9.8
EPSS
0.46%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq_rx in poll_controller mtk_handle_irq_rx expects a struct mtk_eth * (matching the request_irq cookie), but mtk_poll_controller incorrectly passed the net_device *. Calling ndo_poll_controller with CONFIG_NET_POLL_CONTROLLER enabled would then crash.