CVE-2026-98585eth: fbnic: Avoid rounding zero ring sizes
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from 6cbf18a05c06090d867ef417a2a30b214d42d171 before 92c9f2ea634d92adff5403d231ebeda683c5685a; from 6cbf18a05c06090d867ef417a2a30b214d42d171 before 491aa3167ae02f219cb2d2de6f4196d28dca03be; from 6cbf18a05c06090d867ef417a2a30b214d42d171 before 0160953d8eec75c3c55562158c46442ff1fd410b | CNA record |
References
- https://git.kernel.org/stable/c/92c9f2ea634d92adff5403d231ebeda683c5685a
- https://git.kernel.org/stable/c/491aa3167ae02f219cb2d2de6f4196d28dca03be
- https://git.kernel.org/stable/c/0160953d8eec75c3c55562158c46442ff1fd410b
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.