CVE-2026-98585

high

Description

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: Avoid rounding zero ring sizes roundup_pow_of_two() is undefined for zero. ethtool permits a zero ring size to reach the driver, where the minimum-size check should reject it. Leave zero unchanged while rounding nonzero ring sizes. The minimum-size check then rejects zero deterministically without changing the established behavior for other values.

References

https://git.kernel.org/stable/c/92c9f2ea634d92adff5403d231ebeda683c5685a

https://git.kernel.org/stable/c/491aa3167ae02f219cb2d2de6f4196d28dca03be

https://git.kernel.org/stable/c/0160953d8eec75c3c55562158c46442ff1fd410b

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103630

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 7.2

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

Severity: High

CVSS v3

Base Score: 8.4

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

Severity: High

EPSS

EPSS: 0.00166