CVE-2026-99048

medium

Description

In the Linux kernel, the following vulnerability has been resolved: gve: fix napi_disable deadlock when attempting to disable XSK pools When disabling XSK pools, GVE calls the unlocked versions of napi_disable and napi_enable. However, the netdev lock has already been acquired before ndo_bpf is called because GVE supports queue management ops. Calling the unlocked versions of napi_disable/enable results in a deadlock when attempting to disable XSK pools, as the thread attempts to re-acquire a lock it already holds. Update the NAPI calls to use the locked versions. This issue was found in production.

References

https://git.kernel.org/stable/c/42935a61001927aa01db10b53b420efd37eaa99b

https://git.kernel.org/stable/c/3d377911ce81fd4e61af814e750d8e08879a5208

https://git.kernel.org/stable/c/0cb6939a4dfefa822007b7a71986e06bc4f61f54

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108843

Details

Source: Mitre, NVD

Published: 2026-10-23

Updated: 2026-10-23

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium