{"id":"CVE-2026-98585","revision":"895ae3700af2496587d538f0df06f97d","records":[{"revision":"895ae3700af2496587d538f0df06f97d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98585","aliases":[],"title":"eth: fbnic: Avoid rounding zero ring sizes","description":"In the Linux kernel, the following vulnerability has been resolved:\n\neth: fbnic: Avoid rounding zero ring sizes\n\nroundup_pow_of_two() is undefined for zero. ethtool permits a zero ring\nsize to reach the driver, where the minimum-size check should reject it.\n\nLeave zero unchanged while rounding nonzero ring sizes. The minimum-size\ncheck then rejects zero deterministically without changing the established\nbehavior for other values.","state":0,"publishedAt":"2026-10-18T15:18:58.018+00:00","modifiedAt":"2026-10-19T09:22:10.939+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6cbf18a05c06090d867ef417a2a30b214d42d171\",\n                            \"lessThan\": \"92c9f2ea634d92adff5403d231ebeda683c5685a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6cbf18a05c06090d867ef417a2a30b214d42d171\",\n                            \"lessThan\": \"491aa3167ae02f219cb2d2de6f4196d28dca03be\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6cbf18a05c06090d867ef417a2a30b214d42d171\",\n                            \"lessThan\": \"0160953d8eec75c3c55562158c46442ff1fd410b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/92c9f2ea634d92adff5403d231ebeda683c5685a","https://git.kernel.org/stable/c/491aa3167ae02f219cb2d2de6f4196d28dca03be","https://git.kernel.org/stable/c/0160953d8eec75c3c55562158c46442ff1fd410b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98585","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98585","identifiers":["CVE-2026-98585"]},"retained":false,"historicalAffected":[]}],"coverage":[]}