CVE-2026-99188

kernel: kernel: Denial of Service via interrupt storm during system resume in stmmac driver

Loading…

Severity

Moderate

Red Hat Product Security

4.1

CVSS 3.1

Review impact separately from score.

Published · October 28, 2026

Updated · October 29, 2026

Description

A flaw was found in the Linux kernel's stmmac Ethernet driver. Network link changes prior to a system resume can leave hardware status interrupts uncleared. When the system resumes from sleep, these pending interrupts trigger an interrupt storm that overwhelms the processor, resulting in a system freeze and Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')