Riskcovery

CVE-2026-98585

eth: fbnic: Avoid rounding zero ring sizes

State
Published
Severity
Not scored
Published
Oct 18, 2026
Updated
Oct 19, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 6cbf18a05c06090d867ef417a2a30b214d42d171 to before 92c9f2ea634d92adff5403d231ebeda683c5685aAffected
  • 6cbf18a05c06090d867ef417a2a30b214d42d171 to before 491aa3167ae02f219cb2d2de6f4196d28dca03beAffected
  • 6cbf18a05c06090d867ef417a2a30b214d42d171 to before 0160953d8eec75c3c55562158c46442ff1fd410bAffected
LinuxLinux
  • 6.15Affected
  • before 6.15Not affected
  • 6.18.55 through 6.18.*Not affected
  • 7.2.9 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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