CVE-2026-97569
kernel: bnxt_en: Prevent queue stop with deferred completions
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's Broadcom NetXtreme-E (bnxt_en) network driver. An attacker can cause a Denial of Service (DoS) by sending a burst of network traffic followed by a large UDP Segmentation Offload (USO) packet. When operating with small transmit ring configurations, the driver permanently suppresses completion notifications, preventing packet cleanup and causing the network transmit queue to stall indefinitely.
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