CVE-2026-98585
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 18, 2026
First seenOct 18, 2026
How to fix
Update
- Linux Linux92c9f2ea634d92adff5403d231ebeda683c5685a, 491aa3167ae02f219cb2d2de6f4196d28dca03be, 0160953d8eec75c3c55562158c46442ff1fd410b or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 6cbf18a05c06090d867ef417a2a30b214d42d171 ≤ v < 92c9f2ea634d92adff5403d231ebeda683c5685a, 6cbf18a05c06090d867ef417a2a30b214d42d171 ≤ v < 491aa3167ae02f219cb2d2de6f4196d28dca03be, 6cbf18a05c06090d867ef417a2a30b214d42d171 ≤ v < 0160953d8eec75c3c55562158c46442ff1fd410b, 6.15 | 92c9f2ea634d92adff5403d231ebeda683c5685a, 491aa3167ae02f219cb2d2de6f4196d28dca03be, 0160953d8eec75c3c55562158c46442ff1fd410b |
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