CVE-2026-72409
kernel: net: mvneta: re-enable percpu interrupt on resume
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 15, 2026
Updated · August 20, 2026
Description
A flaw was found in the Linux kernel's mvneta network driver. When a system utilizing this driver enters and exits suspend mode, if a Networked Asynchronous Packet Interface (NAPI) poll operation is pending, the per-CPU interrupt may not be correctly re-enabled upon resume. This oversight results in the permanent masking of the per-CPU interrupt, preventing the CPU from receiving network interrupts and leading to a complete loss of network connectivity.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime