eth: fbnic: Avoid rounding zero ring sizes
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.55, 7.2.9
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 6cbf18a05c06090d867ef417a2a30b214d42d171 · fixed in 92c9f2ea634d92adff5403d231ebeda683c5685a; From 6cbf18a05c06090d867ef417a2a30b214d42d171 · fixed in 491aa3167ae02f219cb2d2de6f4196d28dca03be; From 6cbf18a05c06090d867ef417a2a30b214d42d171 · fixed in 0160953d8eec75c3c55562158c46442ff1fd410b
- Linux Linux
6.15
- KernelLinux
From 6.15.0 · fixed in 6.18.55; From 6.19.0 · fixed in 7.2.9